Invention Grant
- Patent Title: Heterogeneous integration using wafer-to-wafer stacking with die size adjustment
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Application No.: US15148615Application Date: 2016-05-06
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Publication No.: US09881956B2Publication Date: 2018-01-30
- Inventor: Arvind Kumar , Mark Lamorey
- 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: Tutunjian & Bitetto, P.C.
- Agent Vazken Alexanian
- Main IPC: H01L21/66
- IPC: H01L21/66 ; H01L27/146

Abstract:
A method is provided for three-dimensional wafer scale integration of heterogeneous wafers with unequal die sizes that include a first wafer and a second wafer. The method includes selecting a periodicity for the second wafer to be manufactured that matches the periodicity of the first wafer. The method further includes manufacturing the second wafer in accordance with the selected periodicity. The method also includes placing, by a laser-based patterning device, a pattern in spaces between dies of the second wafer. The method additionally includes stacking the first wafer onto the second wafer using a bonding material.
Public/Granted literature
- US20170323919A1 HETEROGENEOUS INTEGRATION USING WAFER-TO-WAFER STACKING WITH DIE SIZE ADJUSTMENT Public/Granted day:2017-11-09
Information query
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