Method for preventing solder resist paste from stripping in test

The invention discloses a method for preventing test stripping of solder resist paste flux, and the method comprises the following steps: carrying out the early-stage processing of a PCB workpiece, and generating a to-be-processed workpiece; treating the to-be-treated workpiece with the super-roughe...

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Bibliographische Detailangaben
Hauptverfasser: HE JINTIAN, PENG LANGXIANG, XIAO CAI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a method for preventing test stripping of solder resist paste flux, and the method comprises the following steps: carrying out the early-stage processing of a PCB workpiece, and generating a to-be-processed workpiece; treating the to-be-treated workpiece with the super-roughening liquid, and generating a roughened workpiece; carrying out the solder resist printing; after primary pre-baking, carrying out the exposure and development treatment, and carrying out the post-baking; coating flux paste for testing, and carrying out ultraviolet curing treatment; and checking whether the cured product meets the requirements or not: if so, carrying out later process treatment. The Tg value of printing ink can be increased after solder resist high-temperature curing, the stability, the reliability, the heat resistance and the chemical resistance of a finished PCB are improved, and the thermal expansion coefficient is reduced; meanwhile, the physical shape of the copper surface can be improved thro