Invention Grant
- Patent Title: Stacked electronic device including a protective wafer bonded to a chip by an infused adhesive
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Application No.: US14821902Application Date: 2015-08-10
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Publication No.: US09773740B2Publication Date: 2017-09-26
- Inventor: Karine Saxod , Marika Sorrieul
- Applicant: STMicroelectronics (Grenoble 2) SAS
- Applicant Address: FR Grenoble
- Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
- Current Assignee: STMICROELECTRONICS (GRENOBLE 2) SAS
- Current Assignee Address: FR Grenoble
- Agency: Gardere Wynne Sewell LLP
- Priority: FR1461471 20141126
- Main IPC: H01L23/00
- IPC: H01L23/00 ; H01L27/146 ; H01L23/31 ; H01L21/56

Abstract:
A method for fabricating an electronic device, and an electronic device in a stacked configuration, includes a rear face of an integrated-circuit chip that is fixed to a front face of a support wafer. A protective wafer is located facing and at a distance from the front face of the chip, and an infused adhesive is interposed between the chip and the protective wafer and located on a zone of the front face of the chip outside a central region of this front face. The infused adhesive includes a curable adhesive and solid spacer elements infused in the curable adhesive. An obstruction barrier is arranged between the chip and the protective wafer and is disposed outside the central region of the front face of the chip. An encapsulation ring surrounds the chip, the protective wafer and the obstruction barrier.
Public/Granted literature
- US20160148879A1 METHOD FOR FABRICATING AN ELECTRONIC DEVICE AND A STACKED ELECTRONIC DEVICE Public/Granted day:2016-05-26
Information query
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