Invention Grant
- Patent Title: Ball grid array package construction with raised solder ball pads
- Patent Title (中): 球栅阵列封装结构,凸起焊球垫
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Application No.: US11762479Application Date: 2007-06-13
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Publication No.: US07816754B2Publication Date: 2010-10-19
- Inventor: Paul Marlan Harvey
- Applicant: Paul Marlan Harvey
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Thomas E. Tyson; Matthew Talpis
- Main IPC: H01L29/06
- IPC: H01L29/06 ; H01L29/40

Abstract:
The present invention provides for a BGA solder ball interconnection to an outer conductive layer of a laminated circuit assembly having an underlying circuit layer. The invention includes a raised BGA solder ball pad substantially co-planar with the outer conductive layer, the raised pad having a raised face and a plurality of vertical conductive walls and a BGA solder ball having an average diameter of greater than the width of the raised face, the BGA solder ball being adhered to the raised face and to a substantial portion of the vertical conductive walls.
Public/Granted literature
- US20070228566A1 BALL GRID ARRAY PACKAGE CONSTRUCTION WITH RAISED SOLDER BALL PADS Public/Granted day:2007-10-04
Information query
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