Solution for Negative Film Deformation of PCB Technology

The reasons for the deformation of the negative film and its solution: The reason:(1) Temperature and humidity control failure(2) The exposure machine temperature rises too highSolution:(1) Normally, the temperature is controlled at 22 ± 2 ° C and the humidity is at 55% ± 5% RH.(2) Using a cold light source or an aerator with a cooling device and constantly replacing the backup film The process of negative film deformation correction: 1. Change the Hole Position MethodIn the case of mastering...

Deformation. PCB Negative Film

Ranking Name Answers
1 PCBWay Support 3
2 Tim 2
3 Engineer 1
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