Invention Grant
- Patent Title: Solder mold plates used in packaging process and method of manufacturing solder mold plates
- Patent Title (中): 焊料模具板用于包装工艺和制造焊接模板的方法
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Application No.: US12111372Application Date: 2008-04-29
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Publication No.: US08132775B2Publication Date: 2012-03-13
- Inventor: Lewis S Goldmann
- Applicant: Lewis S Goldmann
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Roberts Mlotkowski Safran & Cole, P.C.
- Agent Joe Petrokaitis
- Main IPC: H01L21/441
- IPC: H01L21/441 ; B23K31/02 ; B23K35/02

Abstract:
Solder mold plates and methods of manufacturing the solder mold plates are provided herein. The solder mold plates are used in controlled collapse chip connection processes. The solder mold plate includes a plurality of cavities. At least one cavity of the plurality of cavities has a different volume than another of the cavities in a particular chip set site. The method of manufacturing the solder mold plate includes determining susceptible white bump locations on a chip set. The method further includes forming lower volume cavities on the solder mold plate which coincide with the susceptible white bump locations, and forming higher volume cavities on the solder mold plate which coincide with less susceptible white bump locations.
Public/Granted literature
- US20090266972A1 SOLDER MOLD PLATES USED IN PACKAGING PROCESS AND METHOD OF MANUFACTURING SOLDER MOLD PLATES Public/Granted day:2009-10-29
Information query
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