FR2349958A1 - Transistor a effet de champ a une gachette isolee - Google Patents

Transistor a effet de champ a une gachette isolee

Info

Publication number
FR2349958A1
FR2349958A1 FR7713104A FR7713104A FR2349958A1 FR 2349958 A1 FR2349958 A1 FR 2349958A1 FR 7713104 A FR7713104 A FR 7713104A FR 7713104 A FR7713104 A FR 7713104A FR 2349958 A1 FR2349958 A1 FR 2349958A1
Authority
FR
France
Prior art keywords
field effect
effect transistor
insulated
trigger
insulated trigger
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
Application number
FR7713104A
Other languages
English (en)
Other versions
FR2349958B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2349958A1 publication Critical patent/FR2349958A1/fr
Application granted granted Critical
Publication of FR2349958B1 publication Critical patent/FR2349958B1/fr
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76Unipolar devices, e.g. field effect transistors
    • H01L29/772Field effect transistors
    • H01L29/78Field effect transistors with field effect produced by an insulated gate
    • H01L29/7801DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
    • H01L29/7802Vertical DMOS transistors, i.e. VDMOS transistors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/0203Particular design considerations for integrated circuits
    • H01L27/0248Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection
    • H01L27/0251Particular design considerations for integrated circuits for electrical or thermal protection, e.g. electrostatic discharge [ESD] protection for MOS devices
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/02Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/0684Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
    • H01L29/0692Surface layout
    • H01L29/0696Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/02Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/10Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
    • H01L29/1095Body region, i.e. base region, of DMOS transistors or IGBTs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00Metal treatment
    • Y10S148/145Shaped junctions
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00Metal treatment
    • Y10S148/167Two diffusions in one hole
FR7713104A 1976-04-29 1977-04-29 Transistor a effet de champ a une gachette isolee Granted FR2349958A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4896776A JPS52132684A (en) 1976-04-29 1976-04-29 Insulating gate type field effect transistor

Publications (2)

Publication Number Publication Date
FR2349958A1 true FR2349958A1 (fr) 1977-11-25
FR2349958B1 FR2349958B1 (fr) 1982-08-13

Family

ID=12818038

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7713104A Granted FR2349958A1 (fr) 1976-04-29 1977-04-29 Transistor a effet de champ a une gachette isolee

Country Status (7)

Country Link
US (1) US4072975A (fr)
JP (1) JPS52132684A (fr)
CA (1) CA1083262A (fr)
DE (1) DE2719314A1 (fr)
FR (1) FR2349958A1 (fr)
GB (1) GB1556276A (fr)
NL (1) NL7704633A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438917A1 (fr) * 1978-10-13 1980-05-09 Int Rectifier Corp Transistor mos a effet de champ, pour circuits de puissance
EP0037105A2 (fr) * 1980-03-28 1981-10-07 Siemens Aktiengesellschaft Transistor à effet de champ

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055884A (en) * 1976-12-13 1977-11-01 International Business Machines Corporation Fabrication of power field effect transistors and the resulting structures
JPS54144183A (en) * 1978-05-01 1979-11-10 Handotai Kenkyu Shinkokai Insulated gate type electrostatic induction transistor and semiconductor integrated circuit
US4199774A (en) * 1978-09-18 1980-04-22 The Board Of Trustees Of The Leland Stanford Junior University Monolithic semiconductor switching device
US4705759B1 (en) * 1978-10-13 1995-02-14 Int Rectifier Corp High power mosfet with low on-resistance and high breakdown voltage
JPS5553462A (en) * 1978-10-13 1980-04-18 Int Rectifier Corp Mosfet element
US5191396B1 (en) * 1978-10-13 1995-12-26 Int Rectifier Corp High power mosfet with low on-resistance and high breakdown voltage
US4546370A (en) * 1979-02-15 1985-10-08 Texas Instruments Incorporated Monolithic integration of logic, control and high voltage interface circuitry
US5008725C2 (en) * 1979-05-14 2001-05-01 Internat Rectifer Corp Plural polygon source pattern for mosfet
US5130767C1 (en) * 1979-05-14 2001-08-14 Int Rectifier Corp Plural polygon source pattern for mosfet
US4680853A (en) * 1980-08-18 1987-07-21 International Rectifier Corporation Process for manufacture of high power MOSFET with laterally distributed high carrier density beneath the gate oxide
US4593302B1 (en) * 1980-08-18 1998-02-03 Int Rectifier Corp Process for manufacture of high power mosfet laterally distributed high carrier density beneath the gate oxide
JPS5784178A (en) * 1980-11-14 1982-05-26 Fujitsu Ltd Field-effect transistor
JPS57141962A (en) * 1981-02-27 1982-09-02 Hitachi Ltd Semiconductor integrated circuit device
JPS5825264A (ja) * 1981-08-07 1983-02-15 Hitachi Ltd 絶縁ゲート型半導体装置
JPS58106870A (ja) * 1981-12-18 1983-06-25 Nissan Motor Co Ltd パワ−mosfet
DE3200660A1 (de) * 1982-01-12 1983-07-21 Siemens AG, 1000 Berlin und 8000 München Mis-feldeffekttransistor mit ladungstraegerinjektion
US4503598A (en) * 1982-05-20 1985-03-12 Fairchild Camera & Instrument Corporation Method of fabricating power MOSFET structure utilizing self-aligned diffusion and etching techniques
US4574209A (en) * 1982-06-21 1986-03-04 Eaton Corporation Split gate EFET and circuitry
US4571606A (en) * 1982-06-21 1986-02-18 Eaton Corporation High density, high voltage power FET
US4574208A (en) * 1982-06-21 1986-03-04 Eaton Corporation Raised split gate EFET and circuitry
DE3224618A1 (de) * 1982-07-01 1984-01-05 Siemens AG, 1000 Berlin und 8000 München Igfet mit ladungstraegerinjektion
US4532534A (en) * 1982-09-07 1985-07-30 Rca Corporation MOSFET with perimeter channel
US4489341A (en) * 1982-09-27 1984-12-18 Sprague Electric Company Merged-transistor switch with extra P-type region
FR2537780A1 (fr) * 1982-12-08 1984-06-15 Radiotechnique Compelec Dispositif mos fet de puissance a structure plane multicellulaire
US4974059A (en) * 1982-12-21 1990-11-27 International Rectifier Corporation Semiconductor high-power mosfet device
EP0119400B1 (fr) * 1983-02-17 1987-08-05 Nissan Motor Co., Ltd. MOSFET de type vertical et procédé pour sa fabrication
JPS59181679A (ja) * 1983-03-31 1984-10-16 Nippon Denso Co Ltd 半導体装置
JPH0612828B2 (ja) * 1983-06-30 1994-02-16 株式会社東芝 半導体装置
US4686554A (en) * 1983-07-02 1987-08-11 Canon Kabushiki Kaisha Photoelectric converter
JPH061816B2 (ja) * 1983-09-30 1994-01-05 日本電気株式会社 半導体装置の製造方法
US4618872A (en) * 1983-12-05 1986-10-21 General Electric Company Integrated power switching semiconductor devices including IGT and MOSFET structures
US4721986A (en) * 1984-02-21 1988-01-26 International Rectifier Corporation Bidirectional output semiconductor field effect transistor and method for its maufacture
US4837606A (en) * 1984-02-22 1989-06-06 General Electric Company Vertical MOSFET with reduced bipolar effects
US4587713A (en) * 1984-02-22 1986-05-13 Rca Corporation Method for making vertical MOSFET with reduced bipolar effects
US4783694A (en) * 1984-03-16 1988-11-08 Motorola Inc. Integrated bipolar-MOS semiconductor device with common collector and drain
US4672407A (en) * 1984-05-30 1987-06-09 Kabushiki Kaisha Toshiba Conductivity modulated MOSFET
US4599554A (en) * 1984-12-10 1986-07-08 Texet Corportion Vertical MOSFET with current monitor utilizing common drain current mirror
US4639754A (en) * 1985-02-25 1987-01-27 Rca Corporation Vertical MOSFET with diminished bipolar effects
US5309013A (en) * 1985-04-30 1994-05-03 Canon Kabushiki Kaisha Photoelectric conversion device
EP0229362B1 (fr) * 1986-01-10 1993-03-17 General Electric Company Dispositif semi-conducteur et méthode de fabrication
US4962411A (en) * 1986-03-21 1990-10-09 Nippondenso Co., Ltd. Semiconductor device with current detecting function
US4883767A (en) * 1986-12-05 1989-11-28 General Electric Company Method of fabricating self aligned semiconductor devices
US4761679A (en) * 1986-12-22 1988-08-02 North American Philips Corporation Complementary silicon-on-insulator lateral insulated gate rectifiers
US5105243A (en) * 1987-02-26 1992-04-14 Kabushiki Kaisha Toshiba Conductivity-modulation metal oxide field effect transistor with single gate structure
US5237186A (en) * 1987-02-26 1993-08-17 Kabushiki Kaisha Toshiba Conductivity-modulation metal oxide field effect transistor with single gate structure
JPH0821713B2 (ja) * 1987-02-26 1996-03-04 株式会社東芝 導電変調型mosfet
JPH01116888U (fr) * 1988-02-01 1989-08-07
JP2653095B2 (ja) * 1988-04-22 1997-09-10 富士電機株式会社 伝導度変調型mosfet
US4988632A (en) * 1990-01-02 1991-01-29 Motorola, Inc. Bipolar process using selective silicon deposition
GB2241827B (en) * 1990-02-23 1994-01-26 Matsushita Electric Works Ltd Method for manufacturing optically triggered lateral thyristor
JP2715399B2 (ja) * 1990-07-30 1998-02-18 株式会社デンソー 電力用半導体装置
GB2257830B (en) * 1991-07-12 1995-04-05 Matsushita Electric Works Ltd Low output-capacity, double-diffused field effect transistor
US5243211A (en) * 1991-11-25 1993-09-07 Harris Corporation Power fet with shielded channels
IT1250233B (it) * 1991-11-29 1995-04-03 St Microelectronics Srl Procedimento per la fabbricazione di circuiti integrati in tecnologia mos.
US5323036A (en) * 1992-01-21 1994-06-21 Harris Corporation Power FET with gate segments covering drain regions disposed in a hexagonal pattern
JP3016298B2 (ja) * 1992-02-26 2000-03-06 日本電気株式会社 半導体装置
US5242841A (en) * 1992-03-25 1993-09-07 Texas Instruments Incorporated Method of making LDMOS transistor with self-aligned source/backgate and photo-aligned gate
DE4244272A1 (de) * 1992-12-28 1994-06-30 Daimler Benz Ag Feldeffektgesteuertes Halbleiterbauelement
JP2910489B2 (ja) * 1993-03-22 1999-06-23 日本電気株式会社 縦型二重拡散mosfet
EP0621636B1 (fr) * 1993-04-21 1999-07-14 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno Dispositif de protection en structure intégrée pour la protection de dispositif MOS de puissance à niveau logique contre des décharges électrostatiques
US5395776A (en) * 1993-05-12 1995-03-07 At&T Corp. Method of making a rugged DMOS device
DE69327320T2 (de) * 1993-09-30 2000-05-31 Cons Ric Microelettronica Integrierte aktive Klammerungsstruktur für den Schutz von Leistungsanordnungen gegen Überspannungen, und Verfahren zu ihrer Herstellung
EP0665597A1 (fr) * 1994-01-27 1995-08-02 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno - CoRiMMe IGBT et son procédé de fabrication
DE69432407D1 (de) * 1994-05-19 2003-05-08 Cons Ric Microelettronica Integrierte Leistungsschaltung ("PIC") mit vertikalem IGB und Verfahren zur Herstellung derselben
EP0683521B1 (fr) * 1994-05-19 2002-08-14 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno Circuit intégré de puissance ("PIC") et son procédé de fabrication
EP0697739B1 (fr) * 1994-08-02 2001-10-31 STMicroelectronics S.r.l. Transistor bipolaire à grille isolée
US5701023A (en) * 1994-08-03 1997-12-23 National Semiconductor Corporation Insulated gate semiconductor device typically having subsurface-peaked portion of body region for improved ruggedness
JPH08172139A (ja) * 1994-12-19 1996-07-02 Sony Corp 半導体装置製造方法
US5798554A (en) * 1995-02-24 1998-08-25 Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno MOS-technology power device integrated structure and manufacturing process thereof
US5869371A (en) * 1995-06-07 1999-02-09 Stmicroelectronics, Inc. Structure and process for reducing the on-resistance of mos-gated power devices
EP0768714B1 (fr) * 1995-10-09 2003-09-17 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno - CoRiMMe Méthode de fabrication d'un dispositif de puissance avec anneau de guide profond
EP0772241B1 (fr) * 1995-10-30 2004-06-09 STMicroelectronics S.r.l. Dispositif de puissance à haute densité en technologie MOS
EP0772242B1 (fr) * 1995-10-30 2006-04-05 STMicroelectronics S.r.l. Dispositif de puissance en technologie MOS avec une seule dimension critique
EP0772244B1 (fr) * 1995-11-06 2000-03-22 Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno Dispositif de puissance en technologie MOS avec résistance de sortie et capacité faibles et son procédé de fabrication
US6228719B1 (en) 1995-11-06 2001-05-08 Stmicroelectronics S.R.L. MOS technology power device with low output resistance and low capacitance, and related manufacturing process
EP0782201B1 (fr) * 1995-12-28 2000-08-30 STMicroelectronics S.r.l. Structure intégrée d'un dispositif de puissance en technologie MOS
US5818084A (en) * 1996-05-15 1998-10-06 Siliconix Incorporated Pseudo-Schottky diode
KR100200485B1 (ko) * 1996-08-08 1999-06-15 윤종용 모스 트랜지스터 및 그 제조방법
US6140692A (en) * 1997-05-29 2000-10-31 Micron Technology, Inc. Isolated anti-fuse structure and method for fabricating same
EP0961325B1 (fr) 1998-05-26 2008-05-07 STMicroelectronics S.r.l. Dispositif de puissance en technologie MOS à haute densité d'intégration
KR20000000549A (ko) * 1998-06-01 2000-01-15 구자홍 가스방전표시장치의 게타구조
DE19840032C1 (de) 1998-09-02 1999-11-18 Siemens Ag Halbleiterbauelement und Herstellungsverfahren dazu
DE69838453D1 (de) * 1998-12-09 2007-10-31 St Microelectronics Srl Leistungsbauelement mit MOS-Gate für hohe Spannungen und diesbezügliches Herstellungsverfahren
KR100297705B1 (ko) 1999-03-29 2001-10-29 김덕중 낮은 온저항과 높은 항복전압을 갖는 전력용 반도체소자
US6245610B1 (en) * 1999-09-28 2001-06-12 United Microelectronics Corp. Method of protecting a well at a floating stage
US6819089B2 (en) * 2001-11-09 2004-11-16 Infineon Technologies Ag Power factor correction circuit with high-voltage semiconductor component
US6828609B2 (en) * 2001-11-09 2004-12-07 Infineon Technologies Ag High-voltage semiconductor component
US6979861B2 (en) * 2002-05-30 2005-12-27 Apd Semiconductor, Inc. Power device having reduced reverse bias leakage current

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2136509A1 (de) * 1970-07-24 1972-11-23 Hitachi Ltd., Tokio Halbleitervorrichtung
US3711940A (en) * 1971-02-08 1973-01-23 Signetics Corp Method for making mos structure with precisely controlled channel length

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5123432B2 (fr) * 1971-08-26 1976-07-16

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2136509A1 (de) * 1970-07-24 1972-11-23 Hitachi Ltd., Tokio Halbleitervorrichtung
US3711940A (en) * 1971-02-08 1973-01-23 Signetics Corp Method for making mos structure with precisely controlled channel length

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2438917A1 (fr) * 1978-10-13 1980-05-09 Int Rectifier Corp Transistor mos a effet de champ, pour circuits de puissance
EP0037105A2 (fr) * 1980-03-28 1981-10-07 Siemens Aktiengesellschaft Transistor à effet de champ
EP0037105A3 (en) * 1980-03-28 1984-08-22 Siemens Aktiengesellschaft Field effect transistor

Also Published As

Publication number Publication date
JPS52132684A (en) 1977-11-07
US4072975A (en) 1978-02-07
FR2349958B1 (fr) 1982-08-13
NL7704633A (nl) 1977-11-01
CA1083262A (fr) 1980-08-05
JPS6145396B2 (fr) 1986-10-07
DE2719314A1 (de) 1977-11-17
GB1556276A (en) 1979-11-21

Similar Documents

Publication Publication Date Title
FR2349958A1 (fr) Transistor a effet de champ a une gachette isolee
BE851970A (fr) Champ operatoire cardio-vasculaire
FR2323233A1 (fr) Circuit integre a transistors a effet de champ a grille isolee
BE853518A (fr) Champ operatoire
FR2340621A1 (fr) Transistor a effet de champ ayant une stabilite de seuil perfectionnee
AR224608A1 (es) Un dispositivo de prevencion de explosiones
NL7707052A (nl) Injectiepistool.
BE854267A (fr) Transistor a effet de champ a canal superficiel
SE7706720L (sv) Dubbelinjektionsanordning
BE838049A (fr) Champ operatoire
FR2321194A1 (fr) Transistor a effet de champ a declencheur isole
NO770218L (no) Isolasjonsanordning.
SE7714418L (sv) Knippningsanordning
NL192861B (nl) Videobandapparaat.
SE423131B (sv) Fastsettningsanordning
NL192715B (nl) Videobandapparaat.
IT1064974B (it) Passaggio isolato flettricamente
MX143601A (es) Aparato frigorifico
BE781698A (fr) Dispositif semiconducteur a transistor a effet de champ a gachette isolee
NL7712322A (nl) Microgolf inrichting.
FR2285719A1 (fr) Transistor a effet de champ a grille flottante isolee
FR2458147B1 (fr) Transistor a effet de champ a jonction
BE767882A (fr) Transistor a effet de champ a grille isolee
CH613350B (de) Elektronisches zeitmessgeraet.
FR2328292A1 (fr) Nouvelles structures a effet de champ