Electronics Forum: solder mask surface energy (Page 1 of 35)

Re: solder mask

Electronics Forum | Mon Aug 09 18:03:28 EDT 1999 | Earl Moon

| | I am having cleaning problems when processing PCB's which have | | TAIYO solder mask on them. After processing, hand soldering and | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other solde

Accidental solder mask

Electronics Forum | Tue Dec 17 16:27:02 EST 2002 | davef

I�m not clear on the problem. What I get: * Your fabricator did not deliver the product that you asked for in your purchase order. * Pad. Land. A portion of a conductive pattern used as a termination area. Metal surrounding a hole on a printed ci

Re: solder mask

Electronics Forum | Tue Aug 10 07:28:49 EDT 1999 | Brian

| | | I am having cleaning problems when processing PCB's which have | | | TAIYO solder mask on them. After processing, hand soldering and | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other

Re: solder mask

Electronics Forum | Tue Aug 10 15:19:55 EDT 1999 | Earl Moon

| | | | I am having cleaning problems when processing PCB's which have | | | | TAIYO solder mask on them. After processing, hand soldering and | | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc.

Re: solder mask

Electronics Forum | Tue Aug 10 15:47:34 EDT 1999 | John Thorup

| | | | | I am having cleaning problems when processing PCB's which have | | | | | TAIYO solder mask on them. After processing, hand soldering and | | | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide mark

Re: solder mask

Electronics Forum | Tue Aug 10 16:01:12 EDT 1999 | Earl Moon

| | | | | | I am having cleaning problems when processing PCB's which have | | | | | | TAIYO solder mask on them. After processing, hand soldering and | | | | | | cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tid

Solder mask vs non solder mask defined pads

Electronics Forum | Fri Jan 29 16:17:13 EST 2021 | donnie15

The impact is low on larger pitches and pad sizes. as things get to the .4mm pitch the pad differences start affect your ball size and yields. The trace size going into the pads and the solder mask relief can cause some odd shaped pads with signif

Solder mask vs non solder mask defined pads

Electronics Forum | Tue Feb 09 16:53:06 EST 2021 | SMTA-64387083

The size of the pad changes among the two. A solder mask defined pad will always be larger than a copper defined by your mask expansion setting. This will affect paste volume, if your standard paste aperture is designed for copper defined pads you m

Re: mask finish and solder balling

Electronics Forum | Sat Feb 20 09:56:22 EST 1999 | Tufty

| We are in the process of getting into no-clean paste and fluxes. One important issue in this is sodler balling. I have heard some people say that having a matte finish would help in having lesser solder balls and that the solder balls would not b

kapton dots and liquid solder mask

Electronics Forum | Wed Aug 10 11:57:16 EDT 2005 | pr

Is the peelable mask (put on by the boardhouse) flat on the surface of the pcb? If so can you tell me the material name, so maybe I can find a picture? We have to print adhesive on the board, so the mask has to be flat. That is why Kapton from the b

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