(19)
(11) EP 3 146 093 A1

(12)

(43) Date of publication:
29.03.2017 Bulletin 2017/13

(21) Application number: 15727806.0

(22) Date of filing: 24.05.2015
(51) International Patent Classification (IPC): 
C30B 7/10(2006.01)
C30B 29/40(2006.01)
(86) International application number:
PCT/US2015/032330
(87) International publication number:
WO 2015/179852 (26.11.2015 Gazette 2015/47)
(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:
MA

(30) Priority: 23.05.2014 US 201462002488 P

(71) Applicants:
  • Sixpoint Materials, Inc.
    Buellton, CA 93427 (US)
  • Seoul Semiconductor Co., Ltd.
    Seoul (KR)

(72) Inventors:
  • HASHIMOTO, Tadao
    Santa Barbara, CA 93111 (US)
  • LETTS, Edward
    Buellton, CA 93427 (US)

(74) Representative: Duckett, Anthony Joseph 
J A Kemp 14 South Square
Gray's Inn London WC1R 5JJ
Gray's Inn London WC1R 5JJ (GB)

   


(54) GROUP III NITRIDE BULK CRYSTALS AND THEIR FABRICATION METHOD