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1.
公开(公告)号:US20180337307A1
公开(公告)日:2018-11-22
申请号:US15842000
申请日:2017-12-14
Applicant: Samsung Electronics Co., Ltd.
Inventor: Jung Taek HAN , Jong Sun MAENG , Jeen Seok CHO , Sun Woon KIM , Yong Hee JEONG
Abstract: A semiconductor light emitting device includes a Group-III nitride semiconductor layer on a buffer layer. The buffer layer includes a first layer, a second layer, and a third layer in that order. Each of the first layer, the second layer, and the third layer includes a composition which includes aluminum (Al), nitrogen (N), and oxygen (O). A minimum or average value of an oxygen concentration (atoms/cm3) of each of the first layer and the third layer is greater than an oxygen concentration (atoms/cm3) of the second layer.
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公开(公告)号:US20130214250A1
公开(公告)日:2013-08-22
申请号:US13848046
申请日:2013-03-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor: Je Won KIM , Jeong Tak OH , Dong Joon KIM , Sun Woon KIM , Jin Sub PARK , Kyu Han LEE
IPC: H01L33/04
Abstract: Disclosed herein is a nitride-based semiconductor light-emitting device. The nitride-based semiconductor light-emitting device comprises an n-type clad layer made of n-type Alx1Iny1Ga(1−x1−y1)N (where 0≦x1≦1, 0≦y1≦1, and 0≦x1+y1≦1), a multiple quantum well-structured active layer made of undoped InAGa1-31 AN (where 0
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