Global Patent Index - EP 3918636 A4

EP 3918636 A4 20230308 - GROUP III-NITRIDE HIGH-ELECTRON MOBILITY TRANSISTORS WITH BURIED P-TYPE LAYERS AND PROCESS FOR MAKING THE SAME

Title (en)

GROUP III-NITRIDE HIGH-ELECTRON MOBILITY TRANSISTORS WITH BURIED P-TYPE LAYERS AND PROCESS FOR MAKING THE SAME

Title (de)

GRUPPE-III-NITRID-TRANSISTOREN MIT HOHER ELEKTRONENBEWEGLICHKEIT MIT VERGRABENEN P-SCHICHTEN UND VERFAHREN ZU DEREN HERSTELLUNG

Title (fr)

TRANSISTORS À MOBILITÉ D'ÉLECTRONS ÉLEVÉE AU NITRURE DU GROUPE III AVEC COUCHES DE TYPE P ENFOUIES ET LEUR PROCÉDÉ DE FABRICATION

Publication

EP 3918636 A4 20230308 (EN)

Application

EP 20749178 A 20200128

Priority

  • US 201916260095 A 20190128
  • US 201916376596 A 20190405
  • US 2020015331 W 20200128

Abstract (en)

[origin: WO2020159934A1] An apparatus includes a substrate. The apparatus further includes a group III-nitride buffer layer on the substrate; a group III-nitride barrier layer on the group III-nitride buffer layer, the group III-nitride barrier layer including a higher bandgap than a bandgap of the group III-nitride buffer layer. The apparatus further includes a source electrically coupled to the group III-nitride barrier layer; a gate electrically coupled to the group III-nitride barrier layer; a drain electrically coupled to the group III-nitride barrier layer; and a p-region being at least one of the following: in the substrate or on the substrate below said group III-nitride barrier layer.

IPC 8 full level

H01L 29/778 (2006.01); H01L 29/10 (2006.01); H01L 29/40 (2006.01); H01L 29/423 (2006.01); H01L 29/08 (2006.01); H01L 29/167 (2006.01); H01L 29/20 (2006.01); H01L 29/417 (2006.01)

CPC (source: EP KR)

H01L 29/1075 (2013.01 - EP KR); H01L 29/2003 (2013.01 - KR); H01L 29/402 (2013.01 - KR); H01L 29/423 (2013.01 - EP); H01L 29/66462 (2013.01 - KR); H01L 29/7783 (2013.01 - EP); H01L 29/7787 (2013.01 - EP KR); H01L 29/0843 (2013.01 - EP); H01L 29/167 (2013.01 - EP); H01L 29/2003 (2013.01 - EP); H01L 29/402 (2013.01 - EP); H01L 29/41766 (2013.01 - EP); H01L 29/8124 (2013.01 - EP)

Citation (search report)

  • [XI] EP 3276670 A1 20180131 - RENESAS ELECTRONICS CORP [JP]
  • [X] US 2017365702 A1 20171221 - PRECHTL GERHARD [AT], et al
  • [XI] US 2013062671 A1 20130314 - SAITO WATARU [JP], et al
  • [XI] US 2016086878 A1 20160324 - OTREMBA RALF [DE], et al
  • [XI] CHIU HSIEN-CHIN ET AL: "Analysis of the Back-Gate Effect in Normally OFF p-GaN Gate High-Electron Mobility Transistor", IEEE TRANSACTIONS ON ELECTRON DEVICES, IEEE, USA, vol. 62, no. 2, February 2015 (2015-02-01), pages 507 - 511, XP011570701, ISSN: 0018-9383, [retrieved on 20150120], DOI: 10.1109/TED.2014.2377747
  • See also references of WO 2020159934A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2020159934 A1 20200806; CN 113950748 A 20220118; EP 3918636 A1 20211208; EP 3918636 A4 20230308; JP 2022519825 A 20220325; JP 2023041688 A 20230324; JP 7248804 B2 20230329; KR 102626266 B1 20240116; KR 20210119511 A 20211005; KR 20230025527 A 20230221; KR 20240010555 A 20240123

DOCDB simple family (application)

US 2020015331 W 20200128; CN 202080025271 A 20200128; EP 20749178 A 20200128; JP 2021544206 A 20200128; JP 2023000240 A 20230104; KR 20217027530 A 20200128; KR 20237004563 A 20200128; KR 20247001387 A 20200128