发明申请
US20050253163A1 Optoelectronic component having a plurality of current expansion layers and method for producing it 有权
具有多个电流膨胀层的光电子部件及其制造方法

Optoelectronic component having a plurality of current expansion layers and method for producing it
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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