- 专利标题: PREVENTING POST REFLOW INTERCONNECT FAILURES IN VIPPO SOLDER JOINTS VIA UTILIZATION OF ADHESIVE MATERIAL
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申请号: US16445904申请日: 2019-06-19
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公开(公告)号: US20190394883A1公开(公告)日: 2019-12-26
- 发明人: Lee C. Kresge , Elaina J. Zito , Ning-Cheng Lee
- 申请人: INDIUM CORPORATION
- 主分类号: H05K3/30
- IPC分类号: H05K3/30 ; H05K1/11 ; H05K1/02 ; H05K1/18 ; H05K3/34 ; H05K3/32 ; H05K3/42
摘要:
Implementations of the disclosure describe techniques for eliminating or reducing hot tearing in via-in-pad plated over (VIPPO) solder joints by incorporating an adhesive into a printed circuit board assembly (PCBA). In an embodiment, the adhesive is an adhesive containing fluxing agent that prevents tearing by reducing a differential in thermal expansion caused by a coefficient of thermal expansion (CTE) mismatch between a plated metal of the VIPPO pads and the PCB substrate.
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