Invention Grant
- Patent Title: Double layer release temporary bond and debond processes and systems
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Application No.: US15215658Application Date: 2016-07-21
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Publication No.: US10224229B2Publication Date: 2019-03-05
- Inventor: Paul S. Andry , Russell A. Budd , Bing Dang , Li-Wen Hung , John U. Knickerbocker , Cornelia Kang-I Tsang
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Harrington & Smith
- Main IPC: B23K26/57
- IPC: B23K26/57 ; B32B43/00 ; H01L21/683 ; H01L21/67 ; H01L21/78 ; H01L23/544

Abstract:
A bonded structure contains a substrate containing at least one feature, the substrate having a top surface; a first release layer overlying the top surface of the substrate, the first release layer being absorptive of light having a first wavelength for being decomposed by the light; an adhesive layer overlying the first release layer, and a second release layer overlying the adhesive layer. The second release layer is absorptive of light having a second wavelength for being decomposed by the light having the second wavelength. The bonded structure further contains a handle substrate that overlies the second release layer, where the handle substrate is substantially transparent to the light having the first wavelength and the second wavelength. Also disclosed is a debonding method to process the bonded structure to remove and reclaim the adhesive layer for re-use. In another embodiment a multi-step method optically cuts and debonds a bonded structure.
Public/Granted literature
- US20160329233A1 Double Layer Release Temporary Bond and Debond Processes and Systems Public/Granted day:2016-11-10
Information query
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