DE102008038946A1 - A method of fabricating a semiconductor-based circuit and semiconductor circuit-based circuit having a three-dimensional circuit topology - Google Patents
A method of fabricating a semiconductor-based circuit and semiconductor circuit-based circuit having a three-dimensional circuit topology Download PDFInfo
- Publication number
- DE102008038946A1 DE102008038946A1 DE102008038946A DE102008038946A DE102008038946A1 DE 102008038946 A1 DE102008038946 A1 DE 102008038946A1 DE 102008038946 A DE102008038946 A DE 102008038946A DE 102008038946 A DE102008038946 A DE 102008038946A DE 102008038946 A1 DE102008038946 A1 DE 102008038946A1
- Authority
- DE
- Germany
- Prior art keywords
- semiconductor substrate
- semiconductor
- circuit
- hole
- metallic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/90—Methods for connecting semiconductor or solid state bodies using means for bonding not being attached to, or not being formed on, the body surface to be connected, e.g. pressure contacts using springs or clips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76898—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics formed through a semiconductor substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L24/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/93—Batch processes
- H01L24/94—Batch processes at wafer-level, i.e. with connecting carried out on a wafer comprising a plurality of undiced individual devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/065—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L25/0657—Stacked arrangements of devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/50—Multistep manufacturing processes of assemblies consisting of devices, each device being of a type provided for in group H01L27/00 or H01L29/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/023—Redistribution layers [RDL] for bonding areas
- H01L2224/0231—Manufacturing methods of the redistribution layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/02—Bonding areas; Manufacturing methods related thereto
- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/0401—Bonding areas specifically adapted for bump connectors, e.g. under bump metallisation [UBM]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13005—Structure
- H01L2224/13009—Bump connector integrally formed with a via connection of the semiconductor or solid-state body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
- H01L2224/13138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/13147—Copper [Cu] as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16135—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/16145—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
- H01L2224/16147—Disposition the bump connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked the bump connector connecting to a bonding area disposed in a recess of the surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L2224/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
- H01L2224/161—Disposition
- H01L2224/16151—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/16221—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/16225—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/16237—Disposition the bump connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation the bump connector connecting to a bonding area disposed in a recess of the surface of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
- H01L2224/23—Structure, shape, material or disposition of the high density interconnect connectors after the connecting process
- H01L2224/25—Structure, shape, material or disposition of the high density interconnect connectors after the connecting process of a plurality of high density interconnect connectors
- H01L2224/251—Disposition
- H01L2224/2518—Disposition being disposed on at least two different sides of the body, e.g. dual array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/8112—Aligning
- H01L2224/81136—Aligning involving guiding structures, e.g. spacers or supporting members
- H01L2224/81138—Aligning involving guiding structures, e.g. spacers or supporting members the guiding structures being at least partially left in the finished device
- H01L2224/81141—Guiding structures both on and outside the body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/8119—Arrangement of the bump connectors prior to mounting
- H01L2224/81191—Arrangement of the bump connectors prior to mounting wherein the bump connectors are disposed only on the semiconductor or solid-state body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/8312—Aligning
- H01L2224/83136—Aligning involving guiding structures, e.g. spacers or supporting members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/8319—Arrangement of the layer connectors prior to mounting
- H01L2224/83194—Lateral distribution of the layer connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/838—Bonding techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/91—Methods for connecting semiconductor or solid state bodies including different methods provided for in two or more of groups H01L2224/80 - H01L2224/90
- H01L2224/92—Specific sequence of method steps
- H01L2224/9201—Forming connectors during the connecting process, e.g. in-situ formation of bumps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/91—Methods for connecting semiconductor or solid state bodies including different methods provided for in two or more of groups H01L2224/80 - H01L2224/90
- H01L2224/92—Specific sequence of method steps
- H01L2224/9202—Forming additional connectors after the connecting process
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2225/00—Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
- H01L2225/03—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
- H01L2225/04—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
- H01L2225/065—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L2225/06503—Stacked arrangements of devices
- H01L2225/06513—Bump or bump-like direct electrical connections between devices, e.g. flip-chip connection, solder bumps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2225/00—Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
- H01L2225/03—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
- H01L2225/04—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
- H01L2225/065—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L2225/06503—Stacked arrangements of devices
- H01L2225/06541—Conductive via connections through the device, e.g. vertical interconnects, through silicon via [TSV]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/11—Manufacturing methods
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01005—Boron [B]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01029—Copper [Cu]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/14—Integrated circuits
- H01L2924/143—Digital devices
- H01L2924/1433—Application-specific integrated circuit [ASIC]
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Die vorliegende Erfindung betrifft ein Verfahren zum Herstellen einer halbleiterbasierten Schaltung mit dreidimensionaler Schaltungstopologie, bei dem mindestens ein Loch (11) in einem ersten Halbleitersubstrat (1) hergestellt wird, während mindestens eine metallische Erhebung (4) auf einer Oberfläche eines zweiten Halbleitersubstrats (2) hergestellt wird, wobei eine Klebstoffschicht (6) auf einer Wand (5) des mindestens einen Lochs (11) im ersten Halbleitersubstrat (1) aufgetragen wird, wonach die Halbleitersubstrate (1, 2) so zusammengefügt werden, dass die mindestens eine metallische Erhebung (4) zur Bildung einer Durchkontaktierung an der Klebstoffschicht (6) anliegend in dem mindestens einen Loch (11) im ersten Halbleitersubstrat (1) zu liegen kommt. Die Erfindung betrifft ferner eine entsprechende halbleiterbasierte Schaltung mit dreidimensionaler Schaltungstopologie.The present invention relates to a method for producing a semiconductor circuit with a three-dimensional circuit topology, in which at least one hole (11) is produced in a first semiconductor substrate (1), while at least one metallic projection (4) is formed on a surface of a second semiconductor substrate (2). in which an adhesive layer (6) is applied to a wall (5) of the at least one hole (11) in the first semiconductor substrate (1), after which the semiconductor substrates (1, 2) are joined together in such a way that the at least one metallic projection ( 4) to form a via at the adhesive layer (6) abutting in the at least one hole (11) in the first semiconductor substrate (1) comes to rest. The invention further relates to a corresponding semiconductor-based circuit having a three-dimensional circuit topology.
Description
Die Erfindung betrifft ein Verfahren zum Herstellen einer halbleiterbasierten Schaltung mit dreidimensionaler Schaltungstopologie sowie eine entsprechende Schaltung mit dreidimensionaler Schaltungstopologie. Die Erfindung betrifft insbesondere ein Verfahren zur dreidimensionalen Integration von Halbleiterkomponenten auf der Basis von Silizium-Durchkontaktierungen, mit dem sich sehr kompakte elektronische Schaltung mit verhältnismäßig komplexer Schaltungstopologie herstellen lassen.The The invention relates to a method for producing a semiconductor-based Circuit with three-dimensional circuit topology and a corresponding Circuit with three-dimensional circuit topology. The invention in particular relates to a method for three-dimensional integration of semiconductor components based on silicon vias, with the very compact electronic circuit with relatively complex Make the circuit topology.
Die Realisierung von Silizium-Durchkontaktierungen erfolgt bislang typischerweise durch zwei verschiedene Prozessabläufe in sogenannten pre-CMOS- oder post-CMOS-Herstellungsprozessen für Halbleiterkomponenten (Silizium-Halbleitertechnologie). Dabei werden mit tels geeigneter Ätzverfahren (Trockenätzen, nasschemisches Ätzen, Laser-Ätzen) Löcher (Vias) in aus Silizium gebildete Substrate von komplett oder teilprozessierter Siliziumwafern eingebracht, die anschließend innen isoliert und metallisiert werden. Die Gestaltung der Vias kann dabei unterschiedliche Formen annehmen (tapered, straight wall). In den meisten Fällen werden sogenannte Sacklöcher verwendet, die nicht komplett durch das Substrat hindurchgehen. Die Metallisierung der Vias erfolgt dabei in der Regel mit Verfahren wie CVD-Prozessen, Sputtern oder elektrochemischer Abscheidung (Galvanik). Diese Prozesse sind technischen Einschränkungen bezüglich der geometrischen Verhältnisse der zu isolierenden und zu metallisierenden Durchkontaktierungen unterworfen (betreffend Durchmesser, Tiefe, Aspektverhältnis). Zusätzlich wird insbesondere die Herstellung von Löchern mit sehr hohen Aspektverhältnissen dadurch erschwert, dass z. T. physikalisch bedingte Prozessgrenzen, z. B. beim Sputtern, RIE (reactive ion etching) und CVD, erreicht werden können oder sehr lange Prozesszeiten erforderlich sind.The Realization of silicon vias is typically done so far through two different process flows in so-called pre-CMOS or post-CMOS manufacturing processes for semiconductor components (Silicon semiconductor technology). In this case, by means of suitable etching (Dry etching, wet-chemical etching, Laser etching) holes (Vias) in silicon formed substrates of fully or partially processed Silicon wafers introduced, which then isolated inside and metallized become. The design of the vias can take different forms accept (tapered, straight wall). In most cases will be so-called blind holes used that does not completely pass through the substrate. The metallization of the vias is usually done with methods such as CVD processes, sputtering or electrochemical deposition (electroplating). These processes are technical limitations in terms of geometric relationships the vias to be isolated and metallized subjected (concerning diameter, depth, aspect ratio). In addition will in particular the production of holes with very high aspect ratios complicates that z. T. physical process limits, z. In sputtering, RIE (reactive ion etching) and CVD can be or very long process times are required.
Der vorliegenden Erfindung liegt also die Aufgabe zugrunde, ein Verfahren zum Herstellen einer halbleiterbasierten Schaltung mit dreidimensionaler Schaltungstopologie vorzuschlagen, bei dem mit verhältnismäßig geringem Aufwand Durchkontaktierungen in einem Halbleitersubstrat der Schaltung realisiert werden, wobei diese Durchkontaktierungen bezüglich ihrer geometrischen Eigenschaften weitgehend beliebig gestaltbar sein sollen. Der Erfindung liegt ferner die Aufgabe zugrunde, eine entsprechend einfach herstellbare und in weiten Grenzen frei gestaltbare halbleiterbasierte Schaltung mit dreidimensionaler Schaltungstopologie vorzuschlagen.Of the The present invention is therefore based on the object, a method for producing a semiconductor-based circuit with three-dimensional Circuit topology to propose, in which with relatively low Overloading realized in a semiconductor substrate of the circuit be, with these vias with respect to their geometric properties should be designed largely arbitrary. The invention is Further, the object of a correspondingly easy to produce and freely configurable semiconductor-based circuitry within wide limits to propose with a three-dimensional circuit topology.
Diese Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren mit den Merkmalen des Hauptanspruchs sowie durch eine halbleiterbasierte Schaltung mit den Merkmalen des Nebenanspruchs. Vorteilhafte Ausgestaltungen und Weiterentwicklungen der Erfindung ergeben sich mit den Merkmalen der Unteransprüche.These The object is achieved by a method having the features of the main claim and by a Semiconductor-based circuit with the features of the independent claim. advantageous Embodiments and further developments of the invention will become apparent with the features of the subclaims.
Das vorgeschlagene Verfahren sieht also die Herstellung mindestens eines Lochs in einem ersten Halbleitersubstrat und die Herstellung mindestens einer entsprechenden metallischen Erhebung auf einer Oberfläche eines zweiten Halbleitersubstrats vor, wobei auf einer Wand des mindestens einen Lochs im ersten Halbleitersubstrat eine Klebstoffschicht aufgetragen wird und das erste Halbleitersubstrat und das zweite Halbleitersubstrat anschließend derart zusammengefügt werden, dass die mindestens eine metallische Erhebung zur Bildung einer Durchkontaktierung an der Klebstoffschicht anliegend in dem mindestens einen Loch im ersten Halbleitersubstrat zu liegen kommt. Vorteilhafterweise erübrigt sich damit ein insbesondere bei verhältnismäßig schmalen und/oder verhältnismäßig langen Vias sehr aufwendige und langwierige Abscheiden von Metall innerhalb der Löcher. Stattdessen wird das die jeweilige Durchkontaktierung bildende Metall als Erhebung auf einer Oberfläche eines anderen Halbleitersubstrats abgeschieden, was wesentlich einfacher und schneller möglich ist. Insbesondere dünne und lange Durchkontaktierungen lassen sich so mit deutlich geringerem Aufwand realisieren.The proposed method thus provides for the production of at least one Holes in a first semiconductor substrate and the production at least a corresponding metallic projection on a surface of a second semiconductor substrate, wherein on a wall of at least a hole is applied in the first semiconductor substrate an adhesive layer and the first semiconductor substrate and the second semiconductor substrate subsequently put together like that Be that at least one metallic survey for education a via on the adhesive layer adjacent in the at least a hole in the first semiconductor substrate comes to rest. advantageously, Needless This is a particular case of relatively narrow and / or relatively long Vias very elaborate and tedious deposition of metal within the Holes. Instead, the metal forming the respective through-hole becomes as a survey on a surface deposited another semiconductor substrate, which is much easier and faster possible is. In particular, thin and long vias can be so much less Realize effort.
Eine auf diese Weise vorteilhaft einfach herstellbare halbleiterbasierte Schaltung mit dreidimensionaler Schaltungstopologie umfasst dementsprechend ein erstes Halbleitersubstrat und ein dazu parallel orien tiertes zweites Halbleitersubstrat, wobei das erste Halbleitersubstrat mindestens eine Durchkontaktierung aufweist, die gebildet ist durch eine metallische Erhebung auf einer dem ersten Halbleitersubstrat zugewandten Oberfläche des zweiten Halbleitersubstrat und die ein Loch im ersten Halbleitersubstrat ausfüllt, wobei eine Mantelfläche der metallischen Erhebung durch eine Klebstoffschicht mit einer Wand des Lochs verbunden ist.A in this way advantageously easy to produce semiconductor-based Circuit with three-dimensional circuit topology includes accordingly a first semiconductor substrate and a parallel thereto oriented second semiconductor substrate, wherein the first semiconductor substrate at least has a via formed by a metallic one Elevation on a surface of the first semiconductor substrate facing the second semiconductor substrate and the one hole in the first semiconductor substrate fills wherein a lateral surface the metallic survey by an adhesive layer with a Wall of the hole is connected.
Typischerweise wird zumindest eines der beiden Halbleitersubstrate durch einen Halbleiter-Wafer gebildet sein, was eine ausgesprochene aufwandsarme Herstellung einer großen Zahl entsprechender halbleiterbasierter Schaltungen erlaubt. Dabei wird vorzugsweise Silizium als Material für die Halbleitersubstrate verwendet, das für die Bildung halbleiterbasierter Schaltungen besonders geeignet ist.typically, At least one of the two semiconductor substrates is replaced by a Semiconductor wafer to be formed, which is a pronounced low-complexity Making a big one Number of corresponding semiconductor-based circuits allowed. there Silicon is preferably used as material for the semiconductor substrates, that for the formation of semiconductor based circuits is particularly suitable.
Eine Schaltung mit vorteilhaft hoher Integrationsdichte läßt sich so realisieren, wenn in mindestens eines der Halbleitersubstrate eine elektronische Schaltung integriert ist, die durch die mindestens eine metallische Erhebung bzw. durch die dadurch gebildete Durchkontaktierung direkt oder indirekt kontaktiert wird. Dabei lassen sich in beschriebener Weise bei gegebener Schaltungskomplexität ausgesprochen kurze Leiterwege realisieren, was im Hinblick auf möglichst geringe externe Felder und minimierte Verlustleistungen und Signallaufzeiten von Vorteil ist.A circuit with advantageously high integration density can be realized if in at least one of the semiconductor substrates, an electronic circuit is integrated, which is directly or indirectly contacted by the at least one metallic survey or by the through hole formed thereby. It can be in the manner described realize very short conductor paths given given circuit complexity, which is advantageous in terms of the lowest possible external fields and minimized power losses and signal propagation times.
Noch komplexere ausgesprochen kompakte Schaltungen lassen sich realisieren, indem auf beschriebene Weise ein Stapel von mehr als zwei miteinander verbundenen Halbleitersubstraten gebildet wird.Yet more complex, extremely compact circuits can be realized in the manner described a stack of more than two with each other connected semiconductor substrates is formed.
Eine vorteilhafte Ausgestaltung des vorgeschlagenen Verfahrens sieht vor, dass das mindestens eine Loch im ersten Halbleitersubstrat zunächst als Sackloch ausgeführt wird, wobei das erste Halbleitersubstrat nach dem Zusammenfügen der beiden Halbleitersubstrate an einer dem zweiten Halbleitersubstrat abgewandten Seite so weit abgetragen wird, bis ein Ende der metallischen Erhebung an dieser Seite frei liegt. Das erste Halbleitersubstrat wird dann also so weit gedünnt, dass die mindestens eine metallische Erhebung letztendlich eine verbleibende Schichtdicke des ersten Halbleitersubstrat vollständig überspannt, um eine Durchkontaktierung im ersten Halbleitersubstrat zu bilden.A advantageous embodiment of the proposed method sees in that the at least one hole in the first semiconductor substrate first as Blind hole executed is, wherein the first semiconductor substrate after joining the both semiconductor substrates on a second semiconductor substrate far away until one end of the metallic Survey on this page is free. The first semiconductor substrate is thinned so far that the at least one metallic survey ultimately a completely overlaps the remaining layer thickness of the first semiconductor substrate, to form a via in the first semiconductor substrate.
Das mindestens eine Loch, in dem die Durchkontaktierung realisiert werden soll, kann in vorteilhaft einfacher Weise beispielsweise durch Ätzen oder durch Laserstrukturieren hergestellt werden.The at least one hole in which the via can be realized should, in an advantageous simple manner, for example, by etching or be prepared by laser structuring.
Die mindestens eine metallische Erhebung auf dem zweiten Halbleitersubstrat läßt sich in vorteilhaft einfacher Weise realisieren, indem Metall galvanisch und/oder stromlos auf dem zweiten Halbleitersubstrat abgeschieden wird, typischerweise auf einem Kontaktpad des zweiten Halbleitersubstrats. Zur Bildung der metallischen Erhebung kann beispielsweise Kupfer oder ein anderes möglichst gut leitendes Metall verwendet werden. Um sicherzustellen, dass die Erhebung die gewünschte Form erhält, die zu dem entsprechenden Loch im ersten Halbleitersubstrat passt, kann das Metall zur Bildung der Erhebung in eine Aussparung einer entsprechend strukturierten Maskierungsschicht abgeschieden werden. Eine solche Maskierungsschicht kann beispielsweise aus Fotolack gebildet werden.The at least one metallic projection on the second semiconductor substrate let yourself realize in an advantageous simple manner by galvanic metal and / or de-energized deposited on the second semiconductor substrate is typically on a contact pad of the second semiconductor substrate. To form the metallic survey, for example, copper or another as possible good conductive metal can be used. To ensure, that the survey the desired Form receives, which matches the corresponding hole in the first semiconductor substrate, The metal may be used to form the elevation in a recess of a correspondingly structured masking layer are deposited. A such masking layer may be formed of photoresist, for example become.
Eine gute und belastungsfähige Verbindung der Halbleitersubstrate bzw. des die Durchkontaktierung bildenden Metalls mit der Wand des entsprechenden Lochs im ersten Halbleitersubstrat läßt sich erreichen, indem die Klebstoffschicht aus einem polymeren Klebstoff gebildet wird, der nach dem Zusammenfügen der beiden Halbleitersubstrate aushärtet. Um den Zeitpunkt des Aushärtens frei wählen zu können, kann das Verfahren dabei so gestaltet sein, dass die entstehende Schaltung nach dem Zusammenfügen der beiden Halbleitersubstrate erwärmt oder abgekühlt wird, um ein Abbinden oder Aushärten der Klebstoffschicht zu induzieren.A good and resilient Connection of the semiconductor substrates or the via forming metal with the wall of the corresponding hole in the first Semiconductor substrate can be achieved by forming the adhesive layer from a polymeric adhesive will, after the joining the two semiconductor substrates cured. At the time of curing choose freely can, the process can be designed so that the resulting Circuit after assembly the two semiconductor substrates is heated or cooled, to a setting or curing to induce the adhesive layer.
Die Klebstoffschicht, die sich auch zumindest über Teile einer dem zweiten Halbleitersubstrat zugewandten Seite des ersten Halbleitersubstrats erstrecken kann, kann zusätzlich zur Verbindung der metallischen Erhebungen mit den Wänden der entsprechenden Löcher zur elektrischen Isolierung der Durchkontaktierungen gegenüber dem ersten Halbleitersubstrat dienen. Zusätzlich kann dazu jedoch auch bereits vor dem Auftragen der Klebstoffschicht eine Isolationsschicht und/oder Barriereschicht zumindest bereichsweise auf dem ersten Halbleitersubstrat aufgebracht werden, insbesondere auf den Wänden der Löcher. Eine solche Isolationsschicht kann auch durch eine Passivierung einer Oberfläche des ersten Halbleitersubstrats gebildet werden.The Adhesive layer, which is also at least over parts of the second Semiconductor substrate facing side of the first semiconductor substrate can extend may additionally for connecting the metallic elevations to the walls of the corresponding holes for the electrical insulation of the vias against the serve the first semiconductor substrate. In addition, however, too even before the application of the adhesive layer, an insulating layer and / or barrier layer at least partially on the first Semiconductor substrate are applied, in particular on the walls of the Holes. Such an insulation layer may also be passivated a surface of the first semiconductor substrate are formed.
Eine Weiterbildung des vorgeschlagenen Verfahrens, die sowohl eine stabilere Verbindung der Halbleitersubstrate als auch eine komplexere Schaltungstopologie erlaubt, sieht vor, dass mindestens eine weitere leitende Verbindung zwischen dem zweiten Halbleiter substrat und einer diesem Halbleitersubstrat zugewandten Oberfläche des ersten Halbleitersubstrats gebildet wird. Dazu können z. B. einander gegenüberliegende Kontaktpads des ersten Halbleitersubstrats und des zweiten Halbleitersubstrats durch Lot oder leitfähigen Klebstoff miteinander verbunden werden.A Continuing the proposed procedure, which is both a more stable Connection of the semiconductor substrates as well as a more complex circuit topology allowed, provides that at least one more conductive connection between the second semiconductor substrate and a semiconductor substrate this facing surface of the first semiconductor substrate is formed. These can z. B. opposite each other Contact pads of the first semiconductor substrate and the second semiconductor substrate by solder or conductive Adhesive are joined together.
Schließlich wird typischerweise auf einer dem zweiten Halbleitersubstrat abgewandten Oberfläche des ersten Halbleitersubstrats eine Leiterbahnebene zum Kontaktieren der durch die mindestens eine Erhebung gebildeten Durchkontaktierung aufgebracht werden, die zur Bildung von Leiterbahnen und/oder Anschlusspads strukturiert werden kann, um die gewünschte Schaltung zu realisieren.Finally will typically facing away from the second semiconductor substrate surface of the first semiconductor substrate, a conductor track plane for contacting applied by the at least one survey formed via are used to form interconnects and / or pads can be structured to realize the desired circuit.
Ein
Ausführungsbeispiel
der Erfindung wird nachfolgend anhand der
Die
in
Die
Kontaktpads
Zusätzlich sind
elektrische Verbindungen zwischen den Halbleitersubstraten
In gleicher Weise können bei komplexeren Ausführungen entsprechender halbleiterbasierter Schaltungen auch mehr als zwei parallel übereinander angeordnete Halbleitersubstrate miteinander verbunden sein und so einen höheren Stapel bilden.In same way for more complex designs corresponding semiconductor-based circuits also more than two parallel to each other arranged semiconductor substrates to be interconnected and so a higher one Make pile.
Die
In
einem weiteren Verfahrensschritt, dessen Ergebnis in
Auf
dem in
In
einem weiteren Verfahrensschritt wird eine dünne Klebstoffschicht
Anschließend werden
die beiden Halbleitersubstrate
In
einem weiteren Verfahrensschritt, dessen Resultat in
Schließlich wird
auf einer dem zweiten Halbleitersubstrat
Variationen des beschriebenen Ausführungsbeispiels können sich ergeben z. B. mit zusätzlichen Kontaktflächen, die mit Lot-Bumps versehen sein können, sowie durch eine Verwendung unterschiedlicher Einzelprozesse (z. B. Laserstrukturierung, stromloses Abscheiden von Seed-Lagern und andere an sich bekannte Verfahrensschritte).variations of the described embodiment can arise z. B. with additional Contact surfaces, which can be provided with solder bumps, as well as by a use different individual processes (eg laser structuring, electroless Separation of seed bearings and other process steps known per se).
Durch
das beschriebene Verfahren werden elektrische Verbindungen zwischen
den beiden Halbleitersubstraten
Das beschriebene Verfahren bildet eine alternative Technologie zu gegenwärtig eingesetzten Verfahren, lässt sich verhältnismäßig kostengünstig realisieren und bringt auch eine hohe Prozessintegrationskompatibilität mit sich. Im Besonderen sind keine Hochtemperaturverfahren notwendig, welche bei den anderen, be reits genutzten Verfahren z. T. ein Ausschlusskriterium für die verwendeten Halbleiter-Komponenten bilden können. Darüber hinaus kann das Verfahren auf unterschiedliche Wafertypen angewendet werden und erlaubt somit eine flexible Art der dreidimensionalen Integration von Halbleiterwafern bzw. Teilen von Halbleiterwafern oder Chips.The described method forms an alternative technology to currently used methods, let yourself realize relatively inexpensive and also brings high process integration compatibility. In particular, no high-temperature processes are necessary, which at the other, already used procedures z. T. an exclusion criterion for the used semiconductor components can form. In addition, the procedure can be applied to different types of wafers and thus allows a flexible way of three-dimensional integration of semiconductor wafers or parts of semiconductor wafers or chips.
Der vorgeschlagene Lösungsansatz besteht darin, dass der Prozess zur Herstellung von Durchkontaktierungen auf zwei Halbleiter-Wafer aufgeteilt wird. Auf einem Teil werden Metallisierungsstrukturen mit hohen Aspektverhältnissen hergestellt und auf dem zweiten Wafer erfolgt ausschließlich die Realisierung der Löcher, u. U. mit zusätzlicher Isolierung (Passivierungsschicht).Of the proposed approach is that the process of making vias is split on two semiconductor wafers. Be on a part Metallization structures produced with high aspect ratios and on the second wafer is carried out exclusively the realization of holes, u. U. with additional Insulation (passivation layer).
Durch justiertes Zusammenfügen beider Wafer-Teile werden die Metallisierungsstrukturen in die Löcher (Vias) versenkt, welche vorher durch geeignete Materialien, die als Klebe- und Isolationsschicht fungieren, z. T. gefüllt werden. Beim Zusammenführen der beiden Waferteile wird die Klebeschicht, die einerseits als Isolations- und andererseits als Verbindungsklebeschicht dient, verdrängt. Hierzu können z. B. Polymere eingesetzt werden.By adjusted joining of both wafer parts, the metallization structures are inserted into the holes (vias) sunk in advance by suitable materials which act as adhesive and insulation layer, for. T. be filled. When merging the Both wafer parts become the adhesive layer, which on the one hand serves as insulation and on the other hand serves as a compound adhesive layer displaced. For this can z. As polymers are used.
Durch anschließendes Dünnen des Wafer-Verbundes von der Rückseite des Wafers, welcher mit Löchern versehen wurde, erfolgt bei dem beschriebenen Ausführungsbeispiel durch Schleifen (Grinding) und Ätzen und anschließende Planarisierungsverfahren (z. B. CMP, was für chemical mechanical polishing steht) eine Freilegung der eingefügten Metallisierungsstrukturen. Anschließend wird durch übliche Verfahren der Halbleitertechnologie die Prozessierung auf der Waferrück seite, insbesondere zum Anlegen der Dünnfilm-Verdrahtungsebene und einer Kontaktmetallisierung für die Verbindung der Halbleiterkomponente zu einem Substrat, fortgesetzt.By then thin of the wafer composite from the back of the wafer, which with holes was provided takes place in the described embodiment by grinding and etching and subsequent Planarization process (eg CMP, which means chemical mechanical polishing stands) an exposure of the inserted metallization structures. Subsequently is by usual Process of semiconductor technology the processing on the wafer side, in particular for applying the thin-film wiring plane and a contact metallization for the connection of the semiconductor component to a substrate, continued.
Das Verfahren hat keine Einschränkungen bezüglich des Einsatzes der ausgewählten Materialien zum Via-Fillen, zur Bildung der notwendigen Diffusionssperrschichten und der Isolation. So können die Barriereschichten z. B. durch Sputtern auf den erhabenen Metallisierungsschichten (Kupfersäulen) oder anderen Verfahren vor dem Zusammenfügen der beiden vorprozessierten Wafer realisiert werden.The Procedure has no restrictions on the Use of the selected Materials for via-fills, to form the necessary diffusion barrier layers and insulation. So can the Barrier layers z. B. by sputtering on the raised metallization layers (Copper columns) or other procedures before joining the two preprocessed Wafers are realized.
Der Vorteil dieser Methode ist darin zu sehen, dass die erhabenen Metallisierungsstrukturen (z. B. Kupfer-Pillarbumps) durch Standardverfahren der Halbleitertechnologie, z. B. Wafer-Bumping, mittels photolithographischer Strukturierung und galvanischer Abscheidung, vollkommen separat hergestellt werden können. Hierfür ist kein Hochtemperaturprozess notwendig, der sich nachteilig auf die Funktionalität und Ausbeute der funktionalen Komponenten auswirken könnte. Mit dieser Methode können Metallisierungsstrukturen mit Erhebungen bis zu mehreren 100 μm realisiert werden.The advantage of this method is that the raised metallization structures (eg, copper pillarbumps) are replaced by standard methods of semiconductor technology, e.g. As wafer bumping, by means of photolithographic structuring and electrodeposition, herge completely separate can be made. For this, no high-temperature process is necessary, which could adversely affect the functionality and yield of the functional components. Metallization structures with elevations of up to several 100 μm can be realized with this method.
Die Herstellung der Vertiefungen bzw. Löcher (Vias) kann auf aktiven und passiven Silizium-Wafern erfolgen. Gleiches gilt für die Herstellung der erhabenen Metallisierungsstrukturen. Mit diesem Lösungsansatz können dreidimensionale Anordnungen von Halbleiterwafern realisiert werden. Durch alternierenden Wechsel von ”Löchern” und ”Erhebungen” kann im Prinzip eine unbegrenzte Anzahl von Ebenen (Wafern) zusammengefügt werden.The Preparation of the wells or holes (vias) can be active on and passive silicon wafers. The same applies to the production of raised metallization structures. With this approach can Three-dimensional arrangements of semiconductor wafers can be realized. By alternating changes of "holes" and "elevations" can in principle an unlimited Number of levels (wafers) are joined together.
Das Verfahren erlaubt eine kostengünstige Herstellung von sogenannten koaxialen Leiterbahndurchführungen durch Silizium. In diesem Fall werden auf dem Wafer mit den Vertiefungen an den Seitenwänden Metallisierungsschichten abgeschieden. Dies kann z. B. durch die Kombination von Sputtern und galvanischer Abscheidung oder ”electroless seed layer” und galvanischer Abscheidung erfolgen. Die auf diese Art und Weise hergestellten Koaxial-Durchkontaktierungsstrukturen weisen besondere Vorzüge dadurch auf, dass zwischen Signal und Masse kein Silizium-Bulkmaterial vorhanden ist und der Herstellungsprozess relativ einfach umzusetzen ist.The Method allows a cost-effective production of so-called coaxial conductor passages through silicon. In In this case, metallization layers are formed on the wafer with the recesses on the sidewalls deposited. This can be z. B. by the combination of sputtering and galvanic deposition or "electroless seed layer "and galvanic deposition take place. Made in this way Coaxial via structures have particular advantages thereby on that between signal and mass no silicon bulk material available and the manufacturing process is relatively easy to implement.
Der erfindungsgemäße Vorschlag ist unabhängig davon, auf welche Art und Weise und mit welchen Methoden die Vertiefungen bzw. Metallerhebungen (z. B. Kupfersäulen) realisiert werden. Auch ist es für den erfindungsgemäßen Lösungsansatz unerheblich, mit welchen Materialien gearbeitet wird. Das Ausführungsbeispiel stellt nur ein exemplarisches Beispiel der Realisierung einer Durchkontaktierung mit sogenannten Kupfer-Pillar-Bump-Strukturen dar, welches von besonderem Interesse im Bereich der 3D-Systemintegration (Stacking) von Halbleiterkomponenten ist.Of the inventive proposal is independent of which, in what way and with what methods the wells or metal elevations (eg copper columns) can be realized. Also is it for the inventive approach irrelevant which materials are used. The embodiment represents only an exemplary example of the realization of a via with so-called copper pillar bump structures which is of particular interest in the field of 3D system integration (Stacking) of semiconductor components.
Es ist ebenfalls unerheblich, ob der aktive oder passive Wafer mit den Erhebungen oder Vertiefungen versehen wird oder für Mehrfachstapel eine entsprechende Kombination ausgeführt wird.It is also irrelevant whether the active or passive wafer with the elevations or depressions is provided or for multiple stacks a corresponding combination is executed.
Der erfindungsgemäße Vorschlag hat auch keine Einschränkungen bezüglich der verwendeten Geometrien. Somit ist der Erfindungsansatz unabhängig davon, ob die Erhebungen oder Vertiefungen runde, quadratische oder andere geometrische Formen aufweisen.Of the inventive proposal also has no restrictions in terms of the geometries used. Thus, the inventive approach is independent of whether the elevations or depressions are round, square or other have geometric shapes.
Das Verfahren eignet sich in besonderer Weise für die dreidimensionale Integration von Halbleiterkomponenten, welche unabhängig voneinander prozessiert werden können. Die dreidimensionale Systemarchitektur kann besonders für die Herstellung von mikroelektronischen Systemen, wie z. B. Stapeln von Speicherbausteinen, Mikroprozessoren, ASICs, Transceivern und anderen elektronischen Elementen, zum Einsatz kommen.The Method is particularly suitable for the three-dimensional integration of semiconductor components which process independently of each other can be. The three-dimensional system architecture can be especially for the production of microelectronic systems, such. B. stacking memory devices, Microprocessors, ASICs, transceivers and other electronic elements, be used.
Claims (16)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008038946A DE102008038946A1 (en) | 2008-03-10 | 2008-08-08 | A method of fabricating a semiconductor-based circuit and semiconductor circuit-based circuit having a three-dimensional circuit topology |
PCT/EP2009/001807 WO2009112272A1 (en) | 2008-03-10 | 2009-03-10 | Method for the production of a semiconductor-based circuit, and semiconductor-based circuit comprising a three-dimensional circuit topology |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008013375.2 | 2008-03-10 | ||
DE102008013375 | 2008-03-10 | ||
DE102008038946A DE102008038946A1 (en) | 2008-03-10 | 2008-08-08 | A method of fabricating a semiconductor-based circuit and semiconductor circuit-based circuit having a three-dimensional circuit topology |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008038946A1 true DE102008038946A1 (en) | 2009-09-24 |
Family
ID=40984131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008038946A Ceased DE102008038946A1 (en) | 2008-03-10 | 2008-08-08 | A method of fabricating a semiconductor-based circuit and semiconductor circuit-based circuit having a three-dimensional circuit topology |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102008038946A1 (en) |
WO (1) | WO2009112272A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114221A (en) * | 1998-03-16 | 2000-09-05 | International Business Machines Corporation | Method and apparatus for interconnecting multiple circuit chips |
DE10338291A1 (en) * | 2003-02-04 | 2004-08-26 | Mitsubishi Denki K.K. | Method of manufacturing a semiconductor device |
US20060121690A1 (en) * | 2002-12-20 | 2006-06-08 | Pogge H B | Three-dimensional device fabrication method |
US20060220212A1 (en) * | 2003-05-27 | 2006-10-05 | Shou-Lung Chen | Stacked package for electronic elements |
WO2008030665A1 (en) * | 2006-07-25 | 2008-03-13 | International Business Machines Corporation | Metal filled through via structure for providing vertical wafer-to wafer interconnection |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5432999A (en) * | 1992-08-20 | 1995-07-18 | Capps; David F. | Integrated circuit lamination process |
JP3731453B2 (en) * | 2000-07-07 | 2006-01-05 | セイコーエプソン株式会社 | Manufacturing method of semiconductor device |
JP3951091B2 (en) * | 2000-08-04 | 2007-08-01 | セイコーエプソン株式会社 | Manufacturing method of semiconductor device |
JP4441328B2 (en) * | 2004-05-25 | 2010-03-31 | 株式会社ルネサステクノロジ | Semiconductor device and manufacturing method thereof |
US7518251B2 (en) * | 2004-12-03 | 2009-04-14 | General Electric Company | Stacked electronics for sensors |
US7605019B2 (en) * | 2006-07-07 | 2009-10-20 | Qimonda Ag | Semiconductor device with stacked chips and method for manufacturing thereof |
-
2008
- 2008-08-08 DE DE102008038946A patent/DE102008038946A1/en not_active Ceased
-
2009
- 2009-03-10 WO PCT/EP2009/001807 patent/WO2009112272A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6114221A (en) * | 1998-03-16 | 2000-09-05 | International Business Machines Corporation | Method and apparatus for interconnecting multiple circuit chips |
US20060121690A1 (en) * | 2002-12-20 | 2006-06-08 | Pogge H B | Three-dimensional device fabrication method |
DE10338291A1 (en) * | 2003-02-04 | 2004-08-26 | Mitsubishi Denki K.K. | Method of manufacturing a semiconductor device |
US20060220212A1 (en) * | 2003-05-27 | 2006-10-05 | Shou-Lung Chen | Stacked package for electronic elements |
WO2008030665A1 (en) * | 2006-07-25 | 2008-03-13 | International Business Machines Corporation | Metal filled through via structure for providing vertical wafer-to wafer interconnection |
Also Published As
Publication number | Publication date |
---|---|
WO2009112272A1 (en) | 2009-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10132024B4 (en) | Semiconductor component and method for its production | |
DE19813239C1 (en) | Wiring method for manufacturing a vertical integrated circuit structure and vertical integrated circuit structure | |
DE102010030760B4 (en) | Semiconductor device with via contacts with a stress relaxation mechanism and method of making the same | |
DE102008039388B4 (en) | Stacked semiconductor chips and manufacturing processes | |
DE102006035864B4 (en) | Method for producing an electrical feedthrough | |
DE102008033395B3 (en) | Method for producing a semiconductor component and semiconductor component | |
WO2009013315A2 (en) | Semiconductor substrate with through-contact and method for production thereof | |
DE69015564T2 (en) | FULLY EFFECTED CONNECTING STRUCTURE WITH TITANIUM / TUNGSTEN AND SELECTIVE CVD TUNGSTEN. | |
WO2010081603A1 (en) | Semiconductor circuit having interlayer connections and method for producing vertically integrated circuits | |
DE102012201586B4 (en) | Process for the production of integrated circuits with space-saving capacitors | |
DE102016219275B3 (en) | Technological method for the prevention of vertical / lateral inhomogeneities in the etching of silicon vias by means of buried etch stop layers | |
DE102016109652A1 (en) | Improved routing for three-dimensional integrated structure | |
DE112011103040T5 (en) | Method for forming wafer vias in semiconductor structures using sacrificial material and semiconductor structures produced by these methods | |
DE60035994T2 (en) | A method of manufacturing a thin self-supporting semiconductor device film and a three-dimensional semiconductor device | |
DE102014210899A1 (en) | Semiconductor component with at least one via in the carrier substrate and method for producing such a via | |
DE10239218A1 (en) | Method of manufacturing a semiconductor device and its construction | |
DE102008038946A1 (en) | A method of fabricating a semiconductor-based circuit and semiconductor circuit-based circuit having a three-dimensional circuit topology | |
EP2191502B1 (en) | Electronic system, and method for manufacturing a three-dimensional electronic system | |
DE10244077A1 (en) | Production of a semiconductor component used in microelectronics comprises dry etching a hole in the substrate of a component, lining the hole with an insulating layer, removing the insulating layer, and producing an electrical connection | |
WO2000065648A1 (en) | Circuit suitable for vertical integration and method of producing same | |
DE102021200519A1 (en) | Landing pad for a silicon via, substrate, process | |
DE102009036033B4 (en) | Through-hole for semiconductor wafers and manufacturing process | |
DE10323394B4 (en) | Method for producing an electrical contact between two semiconductor pieces and method for producing an arrangement of semiconductor pieces | |
DE10359217A1 (en) | Electrical via of HL-chips | |
DE102008054077B4 (en) | Method and device for the production of bonding wires on the basis of microelectronic production techniques |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |