Invention Grant
- Patent Title: Ball grid array rework
- Patent Title (中): 球栅阵列返工
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Application No.: US14836363Application Date: 2015-08-26
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Publication No.: US09332639B2Publication Date: 2016-05-03
- Inventor: Eric V. Kline , Arvind K. Sinha
- 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: Lieberman & Brandsdorfer, LLC
- Main IPC: H01L21/44
- IPC: H01L21/44 ; H01L21/48 ; H01L21/50 ; H05K1/11 ; H05K13/04 ; B23K1/018

Abstract:
Embodiments of the invention relates to a method for rework of a BGA package. Memory shape material is placed adjacent to a plurality of solder joints of the package. Stimulation is applied to the material, with the stimulation causing the material to change from a non-stimulated shape to a stimulated shape. This stimulation causes an expansion of the material. As the material expands, it exerts a tensile force on the BGA package and an adjacently positioned carrier, causing a separation of the two components, while mitigating collateral heat of adjacently positioned components.
Public/Granted literature
- US20160007515A1 Ball Grid Array Rework Public/Granted day:2016-01-07
Information query
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