Invention Grant
- Patent Title: Micro-transfer-printable flip-chip structures and methods
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Application No.: US16192779Application Date: 2018-11-15
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Publication No.: US10431487B2Publication Date: 2019-10-01
- Inventor: Christopher Bower , Matthew Meitl , António José Marques Trindade , Ronald S. Cok , Brook Raymond , Carl Prevatte
- Applicant: X-Celeprint Limited
- Applicant Address: IE Cork
- Assignee: X-Celeprint Limited
- Current Assignee: X-Celeprint Limited
- Current Assignee Address: IE Cork
- Agency: Choate, Hall & Stewart LLP
- Agent William R. Haulbrook; Michael D. Schmitt
- Main IPC: H01L21/683
- IPC: H01L21/683 ; H01L33/00 ; H01L33/38 ; H01L33/62 ; H01L23/00

Abstract:
In certain embodiments, a method of making a semiconductor structure suitable for transfer printing (e.g., micro-transfer printing) includes providing a support substrate and disposing and processing one or more semiconductor layers on the support substrate to make a completed semiconductor device. A patterned release layer and, optionally, a capping layer are disposed on or over the completed semiconductor device and the patterned release layer or capping layer, if present, are bonded to a handle substrate with a bonding layer. The support substrate is removed to expose the completed semiconductor device and, in some embodiments, a portion of the patterned release layer. In some embodiments, an entry path is formed to expose a portion of the patterned release layer. In some embodiments, the release layer is etched and the completed semiconductor devices transfer printed (e.g., micro-transfer printed) from the handle substrate to a destination substrate.
Public/Granted literature
- US20190088526A1 MICRO-TRANSFER-PRINTABLE FLIP-CHIP STRUCTURES AND METHODS Public/Granted day:2019-03-21
Information query
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