- 专利标题: Surface-emitting semiconductor laser chip
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申请号: US16964072申请日: 2019-01-23
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公开(公告)号: US11979000B2公开(公告)日: 2024-05-07
- 发明人: Tilman Rügheimer , Hubert Halbritter
- 申请人: OSRAM OLED GmbH
- 申请人地址: DE Regensburg
- 专利权人: OSRAM OLED GMBH
- 当前专利权人: OSRAM OLED GMBH
- 当前专利权人地址: DE Regensburg
- 代理机构: MH2 TECHNOLOGY LAW GROUP LLP
- 优先权: DE 2018101569.0 2018.01.24
- 国际申请: PCT/EP2019/051629 2019.01.23
- 国际公布: WO2019/145359A 2019.08.01
- 进入国家日期: 2020-07-22
- 主分类号: H01S5/00
- IPC分类号: H01S5/00 ; H01S5/02 ; H01S5/024 ; H01S5/042 ; H01S5/183 ; H01S5/42
摘要:
Surface-emitting semiconductor laser chip (1) comprising a carrier (20), a layer stack (10) arranged on the carrier (20) and having a layer plane (L) extending perpendicularly to the stacking direction (R), a front side contact (310) and a rear side contact (320), in which in operation a predetermined distribution of a current density (I) is achieved by means of current constriction in the layer stack (10), wherein in the carrier (20) an electrical through-connection (200) is provided, which extends from a bottom surface (20a) of the carrier (20) facing away from the layer stack (10) to a surface of the carrier (20) facing the layer stack (10), and the distribution of the current density (I) is significantly influenced by the shape and size of the cross-section of the through-connection (200) parallel to the layer plane (L) on the surface facing the layer stack.
公开/授权文献
- US20210050710A1 SURFACE-EMITTING SEMICONDUCTOR LASER CHIP 公开/授权日:2021-02-18
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