Electronics Forum: white layer appearance on soldermask (11)

White layer appearance on PCB

Electronics Forum | Thu Jan 28 14:10:57 EST 1999 | Tom B

Hello Netters, I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that the LPI solder mask

Re: White layer appearance on PCB

Electronics Forum | Thu Jan 28 15:43:16 EST 1999 | Dave F

| Hello Netters, | | I need some info, Earl or Dave, I have a PCB that exhibits a white layer on solder side. It does not appear to be surface residues (IPA has no effect), but looks like its under solder mask. My first guess is that the LPI solde

Express Newsletter: white layer appearance on soldermask (376)

Partner Websites: white layer appearance on soldermask (12)

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