Invention Grant
- Patent Title: Method for bonding of chips on wafers
- Patent Title (中): 晶片上芯片接合方法
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Application No.: US13496024Application Date: 2010-09-03
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Publication No.: US08927335B2Publication Date: 2015-01-06
- Inventor: Markus Wimplinger
- Applicant: Markus Wimplinger
- Applicant Address: AT St. Florian am Inn
- Assignee: EV Group E. Thallner GmbH
- Current Assignee: EV Group E. Thallner GmbH
- Current Assignee Address: AT St. Florian am Inn
- Agency: Kusner & Jaffe
- Priority: EP09011911 20090918
- International Application: PCT/EP2010/005422 WO 20100903
- International Announcement: WO2011/032647 WO 20110324
- Main IPC: H01L21/78
- IPC: H01L21/78 ; H01L21/56 ; H01L21/683 ; H01L25/00 ; H01L23/00 ; H01L23/31

Abstract:
Method for bonding of a plurality of chips onto a base wafer which contains chips on the front, the chips being stacked in at least one layer on the back of the base wafer and electrically conductive connections are established between the vertically adjacent chips, with the following steps: a) fixing of the front of the base wafer on a carrier, b) placing at least one layer of chips in defined positions on the back of the base wafer, and c) heat treatment of the chips on the base wafer fixed on the carrier, characterized in that prior to step c) at least partial separation of the chips of the base wafer into separated chip stack sections of the base after takes place.
Public/Granted literature
- US20120184069A1 METHOD FOR BONDING OF CHIPS ON WAFERS Public/Granted day:2012-07-19
Information query
IPC分类: