Invention Grant
- Patent Title: Enhanced capture pads for through semiconductor vias
- Patent Title (中): 用于半导体通孔的增强捕获垫
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Application No.: US13670694Application Date: 2012-11-07
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Publication No.: US08772949B2Publication Date: 2014-07-08
- Inventor: Mukta G. Farooq , John A. Griesemer , Gary Lafontant , Kevin S. Petrarca , Richard P. Volant
- 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
- Agent Ira D. Blecker; Ian D. MacKinnon
- Main IPC: H01L23/48
- IPC: H01L23/48

Abstract:
Method of forming a capture pad on a semiconductor substrate. The method includes providing a semiconductor substrate having an active side and an inactive side and having a plurality of unfilled TSVs extending between the active side and the inactive side; filling the TSVs with a metal such that the metal is recessed with respect to at least one of the active side and the inactive side and does not entirely fill the TSVs; defining capture pad areas on the at least one of the active side and inactive side adjacent to the recessed TSVs; filling the capture pad areas and recessed TSVs with the same metal to form a capture pad in direct contact with each of the TSVs, each of the capture pads having an all metal portion that follows an outline of each of the TSVs. Also disclosed is a semiconductor substrate having a capture pad.
Public/Granted literature
- US20140124946A1 ENHANCED CAPTURE PADS FOR THROUGH SEMICONDUCTOR VIAS Public/Granted day:2014-05-08
Information query
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