Invention Grant
- Patent Title: Method for producing optoelectronic devices
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Application No.: US17288430Application Date: 2019-10-25
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Publication No.: US12112968B2Publication Date: 2024-10-08
- Inventor: Ralph Wagner
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE Regensburg
- Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee: OSRAM Opto Semiconductors GmbH
- Current Assignee Address: DE Regensburg
- Agency: Slater Matsil, LLP
- Priority: DE 2018126936.6 2018.10.29
- International Application: PCT/EP2019/079242 2019.10.25
- International Announcement: WO2020/089101A 2020.05.07
- Date entered country: 2021-04-23
- Main IPC: B32B43/00
- IPC: B32B43/00 ; H01L21/683 ; H01L33/00 ; H01L33/22 ; H01L33/32

Abstract:
In an embodiment a method includes providing a growth substrate with a plurality of semiconductor bodies for the semiconductor devices, wherein each semiconductor body comprises electrical contact structures and a separation layer arranged towards the growth substrate, arranging a rigid first auxiliary carrier on a side of the semiconductor bodies facing away from the growth substrate, wherein the first auxiliary carrier comprises a first detachment layer, detaching the growth substrate by laser radiation, wherein the laser radiation is absorbed in the separation layer, arranging a rigid second auxiliary carrier on a side of the semiconductor bodies facing away from the first auxiliary carrier, wherein the second auxiliary carrier comprise a second detachment layer, detaching the first auxiliary carrier by laser radiation, wherein the laser radiation is absorbed in the first detachment layer and the separation layer still extending continuously over the growth substrate while detaching and mechanically and electrically arranging the semiconductor bodies on at least one permanent carrier.
Public/Granted literature
- US20210358792A1 Method for Producing Optoelectronic Devices Public/Granted day:2021-11-18
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