EP1393387A1 - Organischer feldeffekt-transistor, verfahren zu seiner herstellung und verwendung zum aufbau integrierter schaltungen - Google Patents
Organischer feldeffekt-transistor, verfahren zu seiner herstellung und verwendung zum aufbau integrierter schaltungenInfo
- Publication number
- EP1393387A1 EP1393387A1 EP02737855A EP02737855A EP1393387A1 EP 1393387 A1 EP1393387 A1 EP 1393387A1 EP 02737855 A EP02737855 A EP 02737855A EP 02737855 A EP02737855 A EP 02737855A EP 1393387 A1 EP1393387 A1 EP 1393387A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulator layer
- field effect
- effect transistor
- insulator
- organic field
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 230000005669 field effect Effects 0.000 title claims description 9
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000012212 insulator Substances 0.000 claims description 28
- 239000004020 conductor Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000004065 semiconductor Substances 0.000 claims description 14
- 238000004049 embossing Methods 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims description 2
- 125000003700 epoxy group Chemical group 0.000 claims 1
- 229920000647 polyepoxide Polymers 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 29
- 238000001723 curing Methods 0.000 description 4
- 238000007639 printing Methods 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000002346 layers by function Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000010954 inorganic particle Substances 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229920000767 polyaniline Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- KUJYDIFFRDAYDH-UHFFFAOYSA-N 2-thiophen-2-yl-5-[5-[5-(5-thiophen-2-ylthiophen-2-yl)thiophen-2-yl]thiophen-2-yl]thiophene Chemical compound C1=CSC(C=2SC(=CC=2)C=2SC(=CC=2)C=2SC(=CC=2)C=2SC(=CC=2)C=2SC=CC=2)=C1 KUJYDIFFRDAYDH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 238000003848 UV Light-Curing Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 229920000547 conjugated polymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007606 doctor blade method Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000123 polythiophene Polymers 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/468—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics
- H10K10/471—Insulated gate field-effect transistors [IGFETs] characterised by the gate dielectrics the gate dielectric comprising only organic materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/80—Constructional details
- H10K10/82—Electrodes
- H10K10/84—Ohmic electrodes, e.g. source or drain electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
- H10K10/462—Insulated gate field-effect transistors [IGFETs]
- H10K10/466—Lateral bottom-gate IGFETs comprising only a single gate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
- H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/60—Forming conductive regions or layers, e.g. electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/821—Patterning of a layer by embossing, e.g. stamping to form trenches in an insulating layer
Definitions
- the invention relates to an organic field effect transistor (OFET), a method for its production and the use of this OFET for the construction of integrated circuits.
- OFET organic field effect transistor
- OFETs Field effect transistors
- An essential factor for the quality of an OFET and thus an integrated circuit built from it is the integrity and stability of the individual functional layers and a high resolution or fineness of the source and drain electrodes is particularly important for the performance.
- An embossing technique has already been proposed for the formation of the finest structured functional layers on a substrate, in which depressions are embossed and preserved in a layer with a correspondingly surface-structured stamp. These depressions are then filled with the material of the subsequent functional layer.
- Such a method and OFETs generated with it are described in the applicant's German patent application DE 10061297.0. Here, however, the depressions are created in an additional layer.
- the object of the invention is to provide a simplified, compact structure for an OFET, which allows its production on a mass production scale at low cost. At the same time, the performance and stability of the OFET should be guaranteed.
- the present invention relates to an organic compound
- a gate electrode an insulator layer a semiconductor layer
- the source and drain electrodes and the gate electrode being embedded in the insulator layer.
- the advantage of the OFET designed according to the invention is that the transistor structure is considerably simplified, the quality of the
- Isolators improved and the semiconductor as the top layer is made possible.
- the latter is particularly advantageous since the semiconductor materials or layers are the most sensitive components in such a system.
- the semiconductor layer is no longer exposed to any further process steps.
- an entire layer is also omitted, which ultimately makes the OFET thinner in comparison to the prior art. Above all, one process step for generating the additional layer is saved.
- the insulator layer is preferably formed from a self-curing or a UV-curable or thermosetting polymer material and structured by means of an embossing technique for receiving the source and drain electrode (s).
- an embossing technique for receiving the source and drain electrode (s).
- the desired structuring for the application of the source and drain electrode (s) is designed as a positive on an embossing stamp and is thus transferred into the uncured insulator layer.
- the structure is preserved by curing.
- the embossing technique used according to the invention in connection with the hardening of the insulator ateriales allows the creation of the finest, discrete and permanent traces or depressions for the conductor tracks or electrodes.
- the distance 1 between the source and drain electrodes is less than 20 ⁇ m, in particular less than 10 ⁇ m and preferably between 2 and 5 ⁇ m, which corresponds to a maximum resolution and thus the highest power capacity of an OFET.
- the present invention also relates to a method for producing an OFET with, in particular, a bottom-gate structure, in which a gate electrode is applied to a substrate, and an insulator layer made of a hardening material is formed over it, in the unhardened insulator layer by means of an embossing die, the structure for the source and drain electrode (s) are produced and preserved by curing the insulator material, the conserved structure is filled with a conductive material and the semiconductor layer is formed above it.
- Transistor structure Only a single insulator layer is used, which is the carrier of the source and drain electrodes and insulator at the same time. In contrast, the normal manufacturing process provides for a separate layer for each of the two functions. Saving an entire shift means not only material, but also cost savings.
- the quality of the isolator is improved.
- One reason for this is that the insulator surface is smoothed by the embossing process, specifically where it is most important for the transistor function, namely at the interface between the semiconductor and the insulator.
- the insulator is also optimally preconditioned for the reception of the semiconductor, since due to the hardening it can no longer be attacked by the solvent of the semiconductor during its application. This also means great freedom in the choice of the solvent in which the semiconductor can be dissolved to apply and form the layer.
- the (self) curing material for the insulation layer is preferably selected from epoxides and acrylates. These materials can be conditioned in such a way that, for example, they already harden under the action of atmospheric oxygen and / or through the action of UV light and / or heat. These polymers can be applied either from solution or in the form of liquid UV varnishes, either by spin coating or printing, which ensures a high level of homogeneity of the layer.
- the conductive material for forming the electrodes can be selected from organic conductive materials and particle-filled polymers.
- Conductive organic materials are, for example, doped polyethylene or doped polyaniline.
- Particle-filled polymers are those that contain conductive, mostly inorganic particles in a dense packing. The polymer itself can then be conductive or non-conductive.
- the conductive inorganic particles are, for example, silver or other metallic particles as well as graphite or carbon black.
- the conductive material will preferably be doctored into the predetermined structuring of the insulator.
- the doctor blade method offers the advantage that the selection of the conductive material is almost unlimited, whereby a uniform filling of the structuring is ensured.
- the method according to the invention can also be designed such that it is carried out continuously, which ensures a higher production output.
- the OFETs designed according to the invention are of such high quality and performance, they are particularly suitable for the construction of integrated circuits, which can also be all-organic.
- a gate electrode 2 is structured on a substrate 1, which can be, for example, a thin glass film or a polyethylene, polyimide or polyterephthalate film.
- the gate electrode 2 can consist of metallic or non-metallic organic material.
- metallic conductors one can think of copper, aluminum, gold or indium tin oxide.
- Organic conductive materials are doped polyaniline or polyethylene or particle-filled polymers.
- the gate electrode is structured either by printing or by lithographic structuring.
- the insulator layer 3 is now applied over the gate electrode 2 and on the substrate 1. This can be done by spin coating or printing.
- the insulator layer 3 is preferably produced from a UV-curing or thermosetting material, such as epoxy or acrylate.
- this desired structure ' is embossed in the uncured insulating layer 3 by means of a die 4, which carries the structure of the source and drain electrode (s) in positive form.
- the insulator layer 3 is then left to harden or hardened by the action of UV light or heat and the stamp 4 is then removed.
- the structure provided for the source and drain electrodes in the insulator layer 3 ' is preserved permanently and with sharp contours.
- the conductive material 5 is now filled into the depressions or traces produced. Because of the advantages stated above, this is preferably done with the aid of a doctor blade. Suitable materials are also mentioned above.
- the semiconductor layer which can be processed from conjugated polymers, such as polythiophenes, polythienylenes or polyfluorene derivatives, from a solution is now applied.
- conjugated polymers such as polythiophenes, polythienylenes or polyfluorene derivatives
- the application can be done here by spin coating, knife coating or printing.
- So-called "small molecules" are also suitable for the structure of the semiconductor layer, i.e. Oligomers such as sexithiophene or pentacene, which are vacuum-deposited onto the substrate.
- the proposed manufacturing process is suitable for large-scale use. Many different OFETs can be generated at the same time in a continuous process with a continuous belt.
Landscapes
- Thin Film Transistor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10126860 | 2001-06-01 | ||
DE10126860A DE10126860C2 (de) | 2001-06-01 | 2001-06-01 | Organischer Feldeffekt-Transistor, Verfahren zu seiner Herstellung und Verwendung zum Aufbau integrierter Schaltungen |
PCT/DE2002/001948 WO2002099907A1 (de) | 2001-06-01 | 2002-05-27 | Organischer feldeffekt-transistor, verfahren zu seiner herstellung und verwendung zum aufbau integrierter schaltungen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1393387A1 true EP1393387A1 (de) | 2004-03-03 |
Family
ID=7686981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02737855A Withdrawn EP1393387A1 (de) | 2001-06-01 | 2002-05-27 | Organischer feldeffekt-transistor, verfahren zu seiner herstellung und verwendung zum aufbau integrierter schaltungen |
Country Status (4)
Country | Link |
---|---|
US (1) | US20040262599A1 (de) |
EP (1) | EP1393387A1 (de) |
DE (1) | DE10126860C2 (de) |
WO (1) | WO2002099907A1 (de) |
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DE10043204A1 (de) * | 2000-09-01 | 2002-04-04 | Siemens Ag | Organischer Feld-Effekt-Transistor, Verfahren zur Strukturierung eines OFETs und integrierte Schaltung |
US7317047B2 (en) * | 2002-09-24 | 2008-01-08 | E.I. Du Pont De Nemours And Company | Electrically conducting organic polymer/nanoparticle composites and methods for use thereof |
CA2499377A1 (en) | 2002-09-24 | 2004-04-08 | E. I. Du Pont De Nemours And Company | Water dispersible polythiophenes made with polymeric acid colloids |
CA2500304A1 (en) | 2002-09-24 | 2004-04-08 | E. I. Du Pont De Nemours And Company | Electrically conducting organic polymer/nanoparticle composites and methods for use thereof |
CN1681869B (zh) | 2002-09-24 | 2010-05-26 | E.I.内穆尔杜邦公司 | 用于电子器件用聚合物酸胶体制成的可水分散的聚苯胺 |
GB0229191D0 (en) * | 2002-12-14 | 2003-01-22 | Plastic Logic Ltd | Embossing of polymer devices |
DE10302149A1 (de) * | 2003-01-21 | 2005-08-25 | Siemens Ag | Verwendung leitfähiger Carbon-black/Graphit-Mischungen für die Herstellung von low-cost Elektronik |
US7390438B2 (en) | 2003-04-22 | 2008-06-24 | E.I. Du Pont De Nemours And Company | Water dispersible substituted polydioxythiophenes made with fluorinated polymeric sulfonic acid colloids |
KR101001471B1 (ko) | 2003-10-10 | 2010-12-14 | 삼성전자주식회사 | 표면요철구조에 의해 향상된 전하 이동도를 갖는 유기박막트랜지스터 |
US7351358B2 (en) | 2004-03-17 | 2008-04-01 | E.I. Du Pont De Nemours And Company | Water dispersible polypyrroles made with polymeric acid colloids for electronics applications |
DE102005017655B4 (de) | 2005-04-15 | 2008-12-11 | Polyic Gmbh & Co. Kg | Mehrschichtiger Verbundkörper mit elektronischer Funktion |
CN101208369B (zh) | 2005-06-28 | 2013-03-27 | E.I.内穆尔杜邦公司 | 高功函数透明导体 |
WO2007002740A2 (en) | 2005-06-28 | 2007-01-04 | E. I. Du Pont De Nemours And Company | Buffer compositions |
DE102005031448A1 (de) | 2005-07-04 | 2007-01-11 | Polyic Gmbh & Co. Kg | Aktivierbare optische Schicht |
DE102005035589A1 (de) | 2005-07-29 | 2007-02-01 | Polyic Gmbh & Co. Kg | Verfahren zur Herstellung eines elektronischen Bauelements |
DE102005044306A1 (de) | 2005-09-16 | 2007-03-22 | Polyic Gmbh & Co. Kg | Elektronische Schaltung und Verfahren zur Herstellung einer solchen |
KR101157983B1 (ko) * | 2005-12-26 | 2012-06-25 | 엘지디스플레이 주식회사 | 박막 패턴의 제조방법 및 이를 이용한 평판표시소자의제조방법 |
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US8062553B2 (en) * | 2006-12-28 | 2011-11-22 | E. I. Du Pont De Nemours And Company | Compositions of polyaniline made with perfuoropolymeric acid which are heat-enhanced and electronic devices made therewith |
US8153029B2 (en) | 2006-12-28 | 2012-04-10 | E.I. Du Pont De Nemours And Company | Laser (230NM) ablatable compositions of electrically conducting polymers made with a perfluoropolymeric acid applications thereof |
US20080191172A1 (en) | 2006-12-29 | 2008-08-14 | Che-Hsiung Hsu | High work-function and high conductivity compositions of electrically conducting polymers |
US7935566B2 (en) * | 2007-05-14 | 2011-05-03 | Nanyang Technological University | Embossing printing for fabrication of organic field effect transistors and its integrated devices |
US8241526B2 (en) | 2007-05-18 | 2012-08-14 | E I Du Pont De Nemours And Company | Aqueous dispersions of electrically conducting polymers containing high boiling solvent and additives |
JP4936069B2 (ja) * | 2007-10-31 | 2012-05-23 | 株式会社デンソー | モータ制御装置 |
KR101561402B1 (ko) | 2009-03-12 | 2015-10-16 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 코팅 도포를 위한 전기 전도성 중합체 조성물 |
KR101581990B1 (ko) | 2009-04-21 | 2015-12-31 | 이 아이 듀폰 디 네모아 앤드 캄파니 | 전기 전도성 중합체 조성물 및 그로부터 제조된 필름 |
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- 2002-05-27 WO PCT/DE2002/001948 patent/WO2002099907A1/de not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
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DE10126860C2 (de) | 2003-05-28 |
US20040262599A1 (en) | 2004-12-30 |
WO2002099907A1 (de) | 2002-12-12 |
DE10126860A1 (de) | 2002-12-12 |
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