公开(公告)号：US11437427B2

公开(公告)日：2022-09-06

申请号：US16750227

申请日：2020-01-23

Applicant: EPISTAR CORPORATION

Inventor： Po-Shun Chiu ,  Tsung-Hsun Chiang ,  Liang-Sheng Chi ,  Jing Jiang ,  Jie Chen ,  Tzung-Shiun Yeh ,  Hsin-Ying Wang ,  Hui-Chun Yeh ,  Chien-Fu Shen

IPC: H01L27/15 ,  H01L33/36 ,  F21K9/00 ,  H01L33/62

Abstract: A light-emitting device, includes a substrate, including an upper surface; a first light emitting unit and a second light emitting unit, formed on the upper surface, wherein each of the first light emitting unit and the second light emitting unit includes a lower semiconductor portion and an upper semiconductor portion; and a conductive structure electrically connecting the first light emitting unit and the second light emitting unit; wherein the lower semiconductor portion of the first light emitting unit includes a first sidewall and a first upper surface; and wherein the first side wall includes a first sub-side wall and a second sub-side wall, an obtuse angle is formed between the first sub-side wall and the first upper surface and another obtuse angle is formed between the second sub-side wall and the upper surface.

公开(公告)号：US11810943B2

公开(公告)日：2023-11-07

申请号：US17901655

申请日：2022-09-01

Applicant: EPISTAR CORPORATION

Inventor： Po-Shun Chiu ,  Tsung-Hsun Chiang ,  Liang-Sheng Chi ,  Jing Jiang ,  Jie Chen ,  Tzung-Shiun Yeh ,  Hsin-Ying Wang ,  Hui-Chun Yeh ,  Chien-Fu Shen

IPC: H01L27/15 ,  H01L33/36 ,  F21K9/00 ,  H01L33/62

CPC classification number: H01L27/153 ,  F21K9/00 ,  H01L33/36 ,  H01L33/62

Abstract: A light-emitting device, includes a substrate, including an upper surface; a first light emitting unit and a second light emitting unit, formed on the upper surface, wherein each of the first light emitting unit and the second light emitting unit includes a lower semiconductor portion and an upper semiconductor portion; and a conductive structure electrically connecting the first light emitting unit and the second light emitting unit; wherein the lower semiconductor portion of the first light emitting unit includes a first sidewall and a first upper surface; and wherein the first side wall includes a first sub-side wall and a second sub-side wall, an obtuse angle is formed between the first sub-side wall and the first upper surface and another obtuse angle is formed between the second sub-side wall and the upper surface.