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Rework of New High-Speed Press-Fit Connectors

New high-speed press-fit connectors have several hundreds of thin, short and weak pins that are prone to damage. Small variations in via hole dimensions or hole plating thickness affect the connections: if the holes are too small, the pins may be bent or permanently deformed; if the holes are too large, they will not form gas-tight connections. This study, recently named Best Technical Paper at IPC Apex Expo 2017, details how rework of these new connectors affects connection strengths, hole wall deformations and plating cracks.
by Lars Bruno

 

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