Invention Grant
- Patent Title: Method for transferring light-emitting structures
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Application No.: US16954891Application Date: 2018-12-17
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Publication No.: US11626548B2Publication Date: 2023-04-11
- Inventor: Marion Volpert , Vincent Beix , François Levy , Mario Ibrahim , Fabrice De Moro
- Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES , ALEDIA
- Applicant Address: FR Paris; FR Grenoble
- Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES,ALEDIA
- Current Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES,ALEDIA
- Current Assignee Address: FR Paris; FR Grenoble
- Agency: Pearne & Gordon LLP
- Priority: FR1763169 20171222
- International Application: PCT/FR2018/053321 WO 20181217
- International Announcement: WO2019/122644 WO 20190627
- Main IPC: H01L33/60
- IPC: H01L33/60 ; H01L27/15 ; H01L33/00 ; H01L33/08 ; H01L33/48

Abstract:
A method for transferring electroluminescent structures onto a face, referred to as the accommodating face, of an accommodating substrate. The accommodating face is moreover provided with interconnections intended to individually address each of the structures. The electroluminescent structures are initially formed on a supporting substrate and are separated by tracks. It is then proposed in the present invention to form reflective walls, vertically above the tracks, which comprise a supporting polymer (the second polymer) supporting a metal film on its sides. Such an arrangement of reflective walls makes it possible to reduce the stresses exerted on the electroluminescent structures during the transfer method according to the present invention. Moreover, the reflective walls, within the meaning of the present invention, may be produced on all the electroluminescent structures resting on a supporting substrate.
Information query
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