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EP 3 607 735 A1

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(43) Date of publication: 12.02.2020 Bulletin 2020/07 (21) Application number: 18817234.0 (22) Date of filing: 14.06.2018

(51) International Patent Classification (IPC):  H04M 1/725(2006.01) H01L 31/08(2006.01) H01L 33/48(2010.01) H04M 1/22(2006.01) (86) International application number: PCT/KR2018/006698 (87) International publication number: WO 2018/230959 (20.12.2018 Gazette 2018/51)

(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: 14.06.2017 KR 20170074905 08.06.2018 KR 20180066237 (71) Applicant: Samsung Electronics Co., Ltd. Suwon-si, Gyeonggi-do 16677 (KR)

(72) Inventors: LEE, Donghan Suwon-si Gyeonggi-do 16693 (KR) CHO, Jeong-Ho Hwaseong-si Gyeonggi-do 18482 (KR) KIM, Jongah Suwon-si Gyeonggi-do 16514 (KR) YOON, Hee Woong Seoul 06270 (KR) KIM, Taeho Cheongju-si Chungcheongbuk-do 28391 (KR) PARK, Jeong-Min Hwaseong-si Gyeonggi-do 18477 (KR) YOON, Byoung-Uk Hwaseong-si Gyeonggi-do 18437 (KR) (74) Representative: Jacobs, Bart et al Arnold & Siedsma Bezuidenhoutseweg 57 2594 AC The Hague 2594 AC The Hague (NL)