Electronics Forum: soldermask (Page 1 of 32)

Discoloured soldermask

Electronics Forum | Thu Apr 22 10:57:20 EDT 1999 | Jack Coia

On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when ot

Re: Discoloured soldermask

Electronics Forum | Thu Apr 22 18:07:38 EDT 1999 | Tom B.

| On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when

Re: Discoloured soldermask

Electronics Forum | Thu Apr 22 13:20:04 EDT 1999 | Ben Kirk

| On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when

Re: Discoloured soldermask

Electronics Forum | Thu Apr 22 14:36:33 EDT 1999 | Dave F

| On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although when

Printing on soldermask

Electronics Forum | Mon May 20 17:25:23 EDT 2024 | compit

Overprinting - how it's working ? Can you explain ?

Printing on soldermask

Electronics Forum | Tue May 21 07:49:14 EDT 2024 | compit

OK, I know that - I thought there was some other additional technology :)

Printing on soldermask

Electronics Forum | Tue May 28 13:33:32 EDT 2024 | kumarb

http://www.ko-ki.co.jp/en

Re: Discoloured soldermask

Electronics Forum | Thu Apr 22 20:26:39 EDT 1999 | Dave F

| | On various PCB's after building processes,such as reflow, flowsolder and wash. The soldermask on the PCB's have become discoloured, like a 'marble' effect all along the solder side of the board, it is lighter in contrast than normal, although whe

Printing on soldermask

Electronics Forum | Mon May 20 13:14:05 EDT 2024 | dontfeedphils

I almost always go with an overprint as long as it's feasible. I haven't had much problem with solder-balling when overprinting. I'd give it a try and see how it works for you.

Printing on soldermask

Electronics Forum | Tue May 28 12:29:29 EDT 2024 | carl_p

Depends on the product & constraints your having to deal with. I've used the following in the past; Stepped Stencil, Overprint, Additional dispensing equipment after the print process & Solder pre forms

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