Invention Grant
- Patent Title: Compression-loaded printed circuit assembly for solder defect mitigation
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Application No.: US17525275Application Date: 2021-11-12
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Publication No.: US11756851B2Publication Date: 2023-09-12
- Inventor: Sue Yun Teng , Shinnosuke Yamamoto
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Lerner David LLP
- Main IPC: H01L23/32
- IPC: H01L23/32 ; H02B1/015 ; H05K7/10

Abstract:
The present disclosure provides systems for applying a compression load on at least part of an application specific integrated circuit (“ASIC”) ball grid array (“BGA”) package during the rework or secondary reflow process. The compression-loading assembly may include a top plate and a compression plate. The compression plate may exert a compression load on at least part of the ASIC using one or more compression mechanisms. The compression mechanisms may each include a bolt and a spring. The bolt may releasably couple the top plate to the compression plate and allow for adjustments to the compression load. The spring may be positioned on the bolt between the top plate and the compression plate and, therefore, may exert a force in a direction away from the top plate and toward the compression plate. The compression load may retain the solder joint and may prevent the solder separation defect during the reflow process.
Public/Granted literature
- US11791231B2 Compression-loaded printed circuit assembly for solder defect mitigation Public/Granted day:2023-10-17
Information query
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