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1. (WO2018017946) INSULATED GATE TURN-OFF DEVICE WITH TURN-OFF SCHOTTKY-BARRIER MOSFET
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Pub. No.:
WO/2018/017946
International Application No.:
PCT/US2017/043269
Publication Date:
25.01.2018
International Filing Date:
21.07.2017
IPC:
H01L 29/745
(2006.01),
H01L 29/08
(2006.01),
H01L 29/47
(2006.01),
H01L 29/45
(2006.01)
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29
Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; 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
66
Types of semiconductor device
68
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
70
Bipolar devices
74
Thyristor-type devices, e.g. having four-zone regenerative action
744
Gate-turn-off devices
745
with turn-off by field effect
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29
Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; 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
02
Semiconductor bodies
06
characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions
08
with semiconductor regions connected to an electrode carrying current to be rectified, amplified, or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
H
ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
L
SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29
Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; 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
40
Electrodes
43
characterised by the materials of which they are formed
47
Schottky barrier electrodes
[IPC code unknown for ERROR IPC Code incorrect: invalid section (A=>H)!]
Applicants:
PAKAL TECHNOLOGIES LLC
[US/US]; 583 Dolores St. San Francisco, California 94110 (US)
Inventors:
BLANCHARD, Richard A.
; (US).
RODOV, Vladimir
; (US).
AKIYAMA, Hidenori
; (JP).
TWORZYDLO, Woytek
; (US)
Agent:
OGONOWSKY, Brian D.
; (US)
Priority Data:
62/365,739
22.07.2016
US
15/655,715
20.07.2017
US
Title
(EN)
INSULATED GATE TURN-OFF DEVICE WITH TURN-OFF SCHOTTKY-BARRIER MOSFET
(FR)
DISPOSITIF DE MISE HORS TENSION À GRILLE ISOLÉE COMPORTANT UN MOSFET DE MISE HORS TENSION À BARRIÈRE DE SCHOTTKY
Abstract:
(EN)
An insulated gate turn-off (IGTO) device, formed as a die, has a layered structure including a p+ layer (e.g., a substrate), an n- epi layer, a p-well, vertical insulated gate electrodes formed in the p-well, and n+ regions between the gate electrodes, so that vertical npn and pnp transistors are formed. The device is formed of a matrix of cells. To turn the device on, a positive voltage is applied to the gate electrodes, referenced to the cathode. The cells further contain a vertical p-channel MOSFET, for shorting the base of the npn transistor to its emitter, to turn the npn transistor off when the p-channel MOSFET is turned on by a slight negative voltage applied to the gate. The p-channel MOSFET includes a Schottky source formed in the top surface of the npn transistor emitter.
(FR)
L'invention concerne un dispositif de mise hors tension à grille isolée (IGTO), conçu sous forme de puce et qui comporte une structure stratifiée comprenant une couche p+ (p. ex. un substrat), une couche épi n-, une couche de type p, des électrodes de grille isolées verticales formées dans le puits p, et des régions n+ entre les électrodes de grille, de manière à former des transistors npn et pnp verticaux. Le dispositif est constitué d'une matrice de cellules. Pour mettre le dispositif sous tension, une tension positive référencée à la cathode est appliquée aux électrodes de grille. Les cellules contiennent en outre un MOSFET à canal p vertical pour court-circuiter la base du transistor npn vers son émetteur, pour mettre le transistor npn hors tension lorsque le MOSFET à canal p est mis sous tension par une légère tension négative appliquée à la grille. Le MOSFET à canal p comprend une source Schottky formée dans la surface supérieure de l'émetteur du transistor npn.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language:
English (
EN
)
Filing Language:
English (
EN
)