(19)
(11) EP 4 342 001 A1

(12)

(43) Date of publication:
27.03.2024 Bulletin 2024/13

(21) Application number: 22805561.2

(22) Date of filing: 20.05.2022
(51) International Patent Classification (IPC): 
H01L 29/778(2006.01)
(52) Cooperative Patent Classification (CPC):
H01L 29/402; H01L 29/7786; H01L 29/404; H01L 29/2003; H01L 29/66462; H01L 29/41766
(86) International application number:
PCT/US2022/030233
(87) International publication number:
WO 2022/246182 (24.11.2022 Gazette 2022/47)
(84) Designated Contracting States:
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
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 20.05.2021 US 202117325666

(71) Applicant: Wolfspeed, Inc.
Durham, NC 27703 (US)

(72) Inventors:
  • BOTHE, Kyle
    Cary, North Carolina 27511 (US)
  • FISHER, Jeremy
    Raleigh, North Carolina 27614 (US)
  • KING, Matt
    Wake Forest, North Carolina 27587 (US)
  • GUO, Jia
    New Hill, North Carolina 27562 (US)
  • MU, Qianli
    San Jose, California 95124 (US)
  • SHEPPARD, Scott
    Chapel Hill, North Carolina 27516 (US)

(74) Representative: Boult Wade Tennant LLP 
Salisbury Square House 8 Salisbury Square
London EC4Y 8AP
London EC4Y 8AP (GB)

   


(54) FIELD EFFECT TRANSISTOR WITH SOURCE-CONNECTED FIELD PLATE