(19)

(11)

EP 3 619 738 A1

(12)

(43) Date of publication: 11.03.2020 Bulletin 2020/11 (21) Application number: 18795054.8 (22) Date of filing: 03.05.2018

(51) International Patent Classification (IPC):  H01L 23/482(2006.01) H01L 29/43(2006.01) H01L 29/423(2006.01) H01L 29/739(2006.01) (86) International application number: PCT/US2018/030863 (87) International publication number: WO 2018/204622 (08.11.2018 Gazette 2018/45)

(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: 05.05.2017 US 201715587830 30.05.2017 US 201715608048 (71) Applicant: Cree, Inc. Durham, NC 27703 (US)	(72) Inventors: WOOD, Simon M. Raleigh, NC 27613 (US) MILLIGAN, James Cary, NC 27513 (US) FLOWERS, Mitchell Apex, NC 27523 (US) FARRELL, Donald Raleigh, NC 27614 (US) FAYED, Khaled Cary, NC 27519 (US) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)