PROBLEMS RELATED TO SOLDER MASKS

THE ABOVE IMAGES SHOW POOR MASK ALIGNMENT TO THE COPPER PATTERN

THE ABOVE IMAGES SHOW EXCESSIVE MASK OVERSIZE AND IF BADLY ALIGNED THIS CAN EXPOSE TRACKS THAT SHOULD BE COVERED CAUSING A RISK OF SHORT CIRCUITS

THE ABOVE IMAGES SHOW FLAKY AND PATCHY SOLDER MASK EXPOSING COPPER

THE ABOVE IMAGES SHOW SOLDER MASK INSIDE PLATED HOLES

THE ABOVE IMAGE SHOWS THIN SOLDER MASK SLITHERS ON SURFACE MOUNT PADS THIS CAN CAUSE SOLDERING PROBLEMS AND SHOULD HAVE BEEN REMOVED

THE ABOVE IMAGE SHOWS WHERE A SCRATCH IN THE MASK HAS BEEN TOUCHED UP

Page Maintained By Phil

Last Updated 3rd February 2004

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