DE19634495A1 - Metallising electronic ceramic device body ends - Google Patents
Metallising electronic ceramic device body endsInfo
- Publication number
- DE19634495A1 DE19634495A1 DE1996134495 DE19634495A DE19634495A1 DE 19634495 A1 DE19634495 A1 DE 19634495A1 DE 1996134495 DE1996134495 DE 1996134495 DE 19634495 A DE19634495 A DE 19634495A DE 19634495 A1 DE19634495 A1 DE 19634495A1
- Authority
- DE
- Germany
- Prior art keywords
- component
- sputtering
- metallization
- end faces
- component body
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 6
- 238000001465 metallisation Methods 0.000 claims abstract description 28
- 238000004544 sputter deposition Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000002344 surface layer Substances 0.000 claims abstract 2
- 239000010410 layer Substances 0.000 claims 1
- 108090000623 proteins and genes Proteins 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 238000009713 electroplating Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/04—Coating on selected surface areas, e.g. using masks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/28—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals
- H01C17/288—Apparatus or processes specially adapted for manufacturing resistors adapted for applying terminals by thin film techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
- H01F41/042—Printed circuit coils by thin film techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/006—Apparatus or processes for applying terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F2017/0086—Printed inductances on semiconductor substrate
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft ein Verfahren zur Metalli sierung von Bauelementekörpern elektro-keramischer Bauelemen te nach Patentanspruch 1.The present invention relates to a method for metalli sation of component bodies of electro-ceramic components te according to claim 1.
Bei Bauelementen der gattungsgemäßen Art, insbesondere bei für eine SMD-Montage geeigneten Bauelementen, sind auf dem Bauelementekörper kappenförmige Anschlußmetallisierungen vor gesehen, die aus mehreren Metallschichten bestehen. Bei der artigen Metallisierungen kann es sich beispielsweise um Me tallschichtfolgen Ag/Ni/Sn, Ag/Pd, Ag/Ni oder Cr/Ni/Sn han deln. Derartige Anschlußmetallisierungen sind beispielsweise aus der Produktübersicht 1995 "Passive Bauelemente für Ober flächenmontage", insbesondere Seite 7 der Anmelderin bekannt.For components of the generic type, in particular for Components suitable for SMD assembly are on the Component body cap-shaped connection metallizations seen that consist of several layers of metal. At the like metallizations can be, for example, Me metal layer sequences Ag / Ni / Sn, Ag / Pd, Ag / Ni or Cr / Ni / Sn han deln. Such connection metallizations are, for example from the product overview 1995 "Passive components for upper surface mounting ", in particular page 7 of the applicant.
Die Metalle der Anschlußmetallisierungen müssen unter anderem die Bedingung erfüllen, daß sie einen guten sperrschichtfrei en ohmschen Kontakt und eine gute Haftung am Halbleiterkörper gewährleisten. Die Erfüllung dieser Forderungen ist insbeson dere bei Kaltleitern von Bedeutung.The metals of the connection metallizations must among other things meet the condition that they have a good junction free Ohmic contact and good adhesion to the semiconductor body guarantee. The fulfillment of these demands is in particular important for PTC thermistors.
Weiterhin müssen die kappenförmigen Anschlußmetallisierungen auch hinsichtlich ihrer Abmessungen definiert und reprodu zierbar hergestellt werden können, damit die für die Bauele mentefunktion notwendigen Eigenschaften gewährleistet sind. So muß beispielsweise in dem von den kappenförmigen Anschluß metallisierungen freien Teil des Bauelementekörpers eine gute Stromaufteilung gewährleistet sein.Furthermore, the cap-shaped connection metallizations also defined in terms of their dimensions and reprodu can be produced so that it can be used for the components necessary functions are guaranteed. For example, in the cap-shaped connection metallizations free part of the component body a good Current distribution can be guaranteed.
Da die Keramik von Bauelementen der in Rede stehenden Art ei ne bestimmte elektrische Leitfähigkeit besitzt, ist es nicht ohne weiteres möglich, Metallschichten der vorgenannten Art für die kappenförmigen Anschlußmetallisierungen galvanisch aufzubringen, da aufgrund der elektrischen Leitfähigkeit des Bauelementekörpers ein vollständiger Überzug des Bauelemente körpers mit Metall entstehen könnte.Since the ceramics of components of the type in question ne has certain electrical conductivity, it is not easily possible, metal layers of the aforementioned type for the cap-shaped connection metallizations galvanic to apply because of the electrical conductivity of the Component body a complete coating of the component body with metal could arise.
In einer deutschen Patentanmeldung mit dem gleichen Zeitrang (amtliches Aktenzeichen . . . .) ist bereits beschrieben, daß die vorgenannte Problematik dadurch vermieden werden kann, daß auf dem Bauelementekörper mindestens in dem von den Anschluß metallisierungen freien Bereich eine hochohmige oder isolie rende Schicht vorgesehen wird. Dadurch wird vermieden, daß bei einer Galvanik für die Herstellung der Anschlußmetalli sierungen Metall auf dem Bauelementekörper außerhalb des Be reiches der Anschlußmetallisierungen abgeschieden wird.In a German patent application with the same seniority (official file number ...) has already been described that the The aforementioned problem can be avoided in that on the component body at least in that of the connector Metallization free area a high-resistance or isolie rende layer is provided. This avoids that in electroplating for the production of the connection metals Metallizations on the component body outside the Be rich of the terminal metallizations is deposited.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, bei einer Metallisierung von Bauelementekörpern im Bereich der Anschlußmetallisierungen durch Sputtern unter Ausnutzung von hochohmigen oder isolierenden Schichten der vorgenannten Art das Sputtern zu vereinfachen.The present invention is based on the object a metallization of component bodies in the area of Connection metallization by sputtering using high-resistance or insulating layers of the aforementioned type to simplify sputtering.
Diese Aufgabe wird bei einem Verfahren der eingangs genannten Art durch die Maßnahmen des Patentanspruchs 1 gelöst.This task is carried out in a method of the type mentioned at the beginning Art solved by the measures of claim 1.
Weiterbildungen der Erfindung sind Gegenstand von Unteran sprüchen.Developments of the invention are the subject of Unteran sayings.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispie len gemäß den Figuren der Zeichnung näher erläutert. Es zeigt:The invention is described below with reference to exemplary embodiments len explained in more detail according to the figures of the drawing. It shows:
Fig. 1 und 2 eine erste Ausführungsform einer Horde zur Me tallisierung von Bauelementekörpern in Aufsicht bzw. Seitenansicht; Figures 1 and 2, a first embodiment of a horde for Me tallisierung of component bodies in top view and side view;
Fig. 3 und 4 eine weitere Ausführungsform einer Horde zur Metallisierung von Bauelementekörpern in Aufsicht bzw. Seitenansicht; und FIGS. 3 and 4 another embodiment of a tray for the metallization of components bodies in plan view and side view; and
Fig. 5 eine schematische Darstellung eines Bauelementekör pers mit einer U-förmigen Metallisierung. Fig. 5 is a schematic representation of a Bauelementekör pers with a U-shaped metallization.
Eine erste Ausführungsform einer Horde für die Metallisierung von Bauelementekörpern elektro-keramischer Bauelemente gemäß den Fig. 1 und 2 ist eine Horde 1 mit Einzelnestern 2, die in Fig. 1 punktiert dargestellt sind. Diese Nester 2 besit zen genau die Abmessungen von Bauelementekörpern 3, die in Fig. 1 kreuzschraffiert und in Fig. 2 einfach schraffiert dargestellt sind. Aufgrund dieser Ausgestaltung der Horde 1 können lediglich freie Stirnseiten 4 der Bauelementekörper 3 metallisiert werden, was vorzugsweise durch Sputtern erfolgt. Das Sputtern ist in Fig. 2 schematisch durch Pfeile 5 ange deutet.A first embodiment of a tray for the metallization of component bodies of electro-ceramic components according to FIGS. 1 and 2 is a tray 1 with individual nests 2 , which are shown in dotted lines in FIG. 1. These nests 2 have the exact dimensions of component bodies 3 , which are cross-hatched in FIG. 1 and simply hatched in FIG. 2. Because of this configuration of the tray 1 , only free end faces 4 of the component body 3 can be metallized, which is preferably done by sputtering. The sputtering is indicated schematically in Fig. 2 by arrows 5 .
Gemäß einer besonderer Ausgestaltung der Erfindung werden die Stirnseiten 4 der Bauelementekörper 3 mit einer Grundschicht aus Cr/Ni besputtert, wobei die Cr-Schicht einen Sperr schichtabbau an der Kontaktierungsseite bewirkt und einen gu ten Haftvermittler darstellt. Darüber hinaus gewährleistet die Cr/Ni-Schicht eine Aktivierung der Oberfläche für eine nachfolgende Galvanik.According to a special embodiment of the invention, the end faces 4 of the component body 3 are sputtered with a base layer made of Cr / Ni, the Cr layer causing a barrier layer degradation on the contacting side and constituting a good adhesive agent. In addition, the Cr / Ni layer ensures activation of the surface for subsequent electroplating.
Bei einer einfachen Ausführungsform einer Horde 10 nach den Fig. 3 und 4 für die Metallisierung von Bauelementekörpern befinden sich Bauelementekörper 12 nicht wie bei der Ausfüh rungsform nach den Fig. 1 und 2 in Einzelnestern sondern sind einfach in die Horde eingefädelt, so daß sie aneinander liegend in der Horde angeordnet sind. Ggf. kann in der Horde noch ein Silikon-Belag 11 vorgesehen sein, wie dies in Fig. 3 dargestellt ist.In a simple embodiment of a tray 10 according to FIGS. 3 and 4 for the metallization of component bodies, component bodies 12 are not, as in the embodiment according to FIGS . 1 and 2, in individual nests but are simply threaded into the tray so that they are against one another are arranged lying in the horde. Possibly. A silicone covering 11 can also be provided in the tray, as shown in FIG. 3.
Die Horde 10 nach den Fig. 3 und 4 ist so bemessen, daß die Bauelementekörper 12 mit ihren sich gegenüberliegende Stirnseiten bis zu einer vorgegebenen hänge aus der Horde 10 herausragen, so daß die Stirnseiten in einem Metallisierungs prozeß U-förmig metallisiert werden. Diese Bemessung der Hor de 10 ist aus Fig. 4 ersichtlich. The horde 10 according to FIGS. 3 and 4 is dimensioned such that the component bodies 12 with their opposite end faces protrude from the horde 10 up to a predetermined length, so that the end faces are metallized in a U-shaped metallization process. This dimensioning of the Hor de 10 can be seen in FIG. 4.
Wie Fig. 5 zeigt, werden die Bauelementekörper 12 bei einer Metallisierung durch Sputtern U-förmig metallisiert, wobei die Seitenflächen der Bauelementekörper 12, an denen diese eng aneinanderliegen nicht metallisiert werden. Die U-förmige Metallisierung ist in Fig. 5 mit 13 bezeichnet.As FIG. 5 shows, the component bodies 12 are metallized in a U-shape during sputtering, the side surfaces of the component bodies 12 on which they lie closely against one another are not metallized. The U-shaped metallization is designated 13 in FIG. 5.
Fig. 5 zeigt zur Verdeutlichung auch eine hochohmige oder isolierende Schicht 14 der eingangs erläuterten Art. Da die Schicht 14 die Geometrie von nicht vollständig dargestellten kappenförmigen Anschlußmetallisierungen festlegt, kann das Sputtern vereinfacht werden, weil einfachere und weniger ver schleißanfällige Horden verwendbar sind. Fig. 5 shows for illustrating a high-resistance or insulating layer 14 of the above described type. Since the layer 14 defines the geometry of not fully illustrated cap-shaped connection metallization, sputtering can be simplified because simpler and less ver schleißanfällige trays are usable.
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996134495 DE19634495C2 (en) | 1996-08-26 | 1996-08-26 | Process for the metallization of component bodies of electro-ceramic components |
AT128097A ATA128097A (en) | 1996-08-26 | 1997-07-28 | METHOD FOR METALIZING BY SPUTTERING COMPONENT BODIES OF ELECTRO-CERAMIC COMPONENTS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996134495 DE19634495C2 (en) | 1996-08-26 | 1996-08-26 | Process for the metallization of component bodies of electro-ceramic components |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19634495A1 true DE19634495A1 (en) | 1998-03-12 |
DE19634495C2 DE19634495C2 (en) | 2003-04-03 |
Family
ID=7803745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996134495 Expired - Fee Related DE19634495C2 (en) | 1996-08-26 | 1996-08-26 | Process for the metallization of component bodies of electro-ceramic components |
Country Status (2)
Country | Link |
---|---|
AT (1) | ATA128097A (en) |
DE (1) | DE19634495C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002056323A1 (en) * | 2001-01-11 | 2002-07-18 | Vishay Sprague, Inc. | Method of forming termination of chip components |
CN112071542A (en) * | 2020-08-20 | 2020-12-11 | 苏州达晶半导体有限公司 | Manufacturing method of PPTC surface electrode |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005040685A1 (en) * | 2005-08-26 | 2007-03-01 | Epcos Ag | Design for electrical resistor with positive temperature coefficient, includes belt around ceramic material with electrical end contacts, suitable for surface mounting |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4741077A (en) * | 1987-05-15 | 1988-05-03 | Sfe Technologies | End terminations for capacitors |
DE3535059C2 (en) * | 1984-10-02 | 1993-07-15 | Murata Mfg. Co., Ltd., Nagaokakyo, Kyoto, Jp |
-
1996
- 1996-08-26 DE DE1996134495 patent/DE19634495C2/en not_active Expired - Fee Related
-
1997
- 1997-07-28 AT AT128097A patent/ATA128097A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3535059C2 (en) * | 1984-10-02 | 1993-07-15 | Murata Mfg. Co., Ltd., Nagaokakyo, Kyoto, Jp | |
US4741077A (en) * | 1987-05-15 | 1988-05-03 | Sfe Technologies | End terminations for capacitors |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002056323A1 (en) * | 2001-01-11 | 2002-07-18 | Vishay Sprague, Inc. | Method of forming termination of chip components |
US6541302B2 (en) | 2001-01-11 | 2003-04-01 | Vishay Sprague, Inc. | Method of forming termination on chip components |
CN112071542A (en) * | 2020-08-20 | 2020-12-11 | 苏州达晶半导体有限公司 | Manufacturing method of PPTC surface electrode |
CN112071542B (en) * | 2020-08-20 | 2022-03-29 | 苏州达晶半导体有限公司 | Manufacturing method of PPTC surface electrode |
Also Published As
Publication number | Publication date |
---|---|
DE19634495C2 (en) | 2003-04-03 |
ATA128097A (en) | 2003-04-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: EPCOS AG, 81541 MUENCHEN, DE |
|
8125 | Change of the main classification |
Ipc: H01C 17/28 |
|
8304 | Grant after examination procedure | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |