Invention Grant
- Patent Title: Preventing post reflow interconnect failures in VIPPO solder joints via utilization of adhesive material
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Application No.: US16445904Application Date: 2019-06-19
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Publication No.: US10813228B2Publication Date: 2020-10-20
- Inventor: Lee C. Kresge , Elaina J. Zito , Ning-Cheng Lee
- Applicant: INDIUM CORPORATION
- Applicant Address: US NY Utica
- Assignee: INDIUM CORPORATION
- Current Assignee: INDIUM CORPORATION
- Current Assignee Address: US NY Utica
- Agency: Sheppard, Mullin, Richter & Hampton LLP
- Main IPC: H05K3/46
- IPC: H05K3/46 ; H05K1/14 ; H05K3/30 ; H05K1/02 ; H05K1/11 ; H05K1/18 ; H05K3/32 ; H05K3/34 ; H05K3/42

Abstract:
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.
Public/Granted literature
- US20190394883A1 PREVENTING POST REFLOW INTERCONNECT FAILURES IN VIPPO SOLDER JOINTS VIA UTILIZATION OF ADHESIVE MATERIAL Public/Granted day:2019-12-26
Information query