发明申请
- 专利标题: Optoelectronic component having a plurality of current expansion layers and method for producing it
- 专利标题(中): 具有多个电流膨胀层的光电子部件及其制造方法
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申请号: US11120514申请日: 2005-05-02
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公开(公告)号: US20050253163A1公开(公告)日: 2005-11-17
- 发明人: Franz Eberhard , Uwe Strauss , Ulrich Zehnder , Andreas Weimar , Raimund Oberschmid
- 申请人: Franz Eberhard , Uwe Strauss , Ulrich Zehnder , Andreas Weimar , Raimund Oberschmid
- 申请人地址: DE Regensburg
- 专利权人: Osram Opto Semiconductors GmbH
- 当前专利权人: Osram Opto Semiconductors GmbH
- 当前专利权人地址: DE Regensburg
- 优先权: DE102004021419.0 20040430; DE102004025610.1 20040525
- 主分类号: H01L33/32
- IPC分类号: H01L33/32 ; H01L33/38 ; H01L33/40 ; H01S5/22 ; H01L33/00
摘要:
An optoelectronic component having a semiconductor chip containing a semiconductor layer sequence (6) with a radiation-emitting active zone (4), the semiconductor layer sequence (6) having sidewalls (10). A connection contact (9) is provided for impressing current into the active zone. A first current expansion layer (7) adjoins a semiconductor layer (5) of the semiconductor layer sequence (6) and a second current expansion layer (8) is provided between the semiconductor layer sequence (6) and the connection contact (9). The first current expansion layer (7) has a larger sheet resistance than the second current expansion layer (8) and forms an ohmic contact with the adjoining semiconductor layer (5). The second current expansion layer (8) is applied to a partial region of the first current expansion layer (7) which is at a distance from the sidewalls (10).
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