Invention Grant
- Patent Title: Semiconductor layer sequence, optoelectronic semiconductor chip and method for producing a semiconductor layer sequence
- Patent Title (中): 半导体层序列,光电半导体芯片以及半导体层序列的制造方法
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Application No.: US14348587Application Date: 2012-08-22
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Publication No.: US09331238B2Publication Date: 2016-05-03
- Inventor: Ivar Tångring , Martin Rudolf Behringer
- Applicant: Ivar Tångring , Martin Rudolf Behringer
- Applicant Address: DE Regensburg
- Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
- Current Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
- Current Assignee Address: DE Regensburg
- Agency: McDermott Will & Emery LLP
- Priority: DE102011115312 20110929
- International Application: PCT/EP2012/066318 WO 20120822
- International Announcement: WO2013/045178 WO 20130404
- Main IPC: H01L33/06
- IPC: H01L33/06 ; H01L33/00 ; H01L33/30 ; H01S5/343 ; B82Y20/00 ; H01L33/12 ; H01L33/08

Abstract:
In at least one embodiment, the semiconductor layer sequence (1) is provided for an optoelectronic semiconductor chip (10). The semiconductor layer sequence (1) contains at least three quantum wells (2) which are arranged to generate electromagnetic radiation. Furthermore, the semiconductor layer sequence (1) includes a plurality of barrier layers (3), of which at least one barrier layer is arranged between two adjacent quantum wells (2) in each case. The quantum wells (2) have a first average indium content and the barrier layers (3) have a second, smaller, average indium content. A second average lattice constant of the barrier layers (3) is thereby smaller than a first average lattice constant of the quantum wells (2).
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