Electronics Forum: solder mask heat damage (Page 1 of 34)

Re: solder mask wrinkles

Electronics Forum | Tue Oct 19 11:28:05 EDT 1999 | Brian

Carol You're asking a helluva lot if you heat a PCB to 300�C and probably more in such an uncontrolled process. I'm surprised it is not irreparably damaged or, at least, discoloured. I don't think any solder mask is designed for this temperature. W

Heat guns and component damage

Electronics Forum | Wed Feb 01 08:12:04 EST 2006 | Chunks

OK, this is easy. You say HIGH fall out, so I can assume 25 or 50%? If so, run 10 without the heat gun and 10 with. This should show you if the heat gun process is the cause or not. If the relay is a surface mount, hand solder them on. If it's a

solder mask wrinkles

Electronics Forum | Tue Oct 19 10:53:14 EDT 1999 | Carol Zhang

Hi, I tried to use high temperature solder (540 - 570F)to connect four spacers on the board. The solder mask around the spacers wrinkled a lot.I can even see a few bulbs around it. I use hot plate and solder rings. After hot plate is heated to appr

Accidental solder mask

Electronics Forum | Wed Dec 18 10:10:07 EST 2002 | davef

No, sorry not on "Dave's Bookshelf". My basis is a study done at IBM. I reference it here: http://www.smtnet.com//forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=4941&#Message19050 Responding differently, you're correct. If you have a

Re: solder mask

Electronics Forum | Thu Aug 12 05:33:23 EDT 1999 | Brian

| | (snip) | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a little later on

Re: solder mask

Electronics Forum | Thu Aug 12 22:23:23 EDT 1999 | Dave F

| | | | (snip) | | | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a little

Re: solder mask

Electronics Forum | Fri Aug 13 10:39:25 EDT 1999 | Boca

| | | | | | (snip) | | | | | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a

Solder mask

Electronics Forum | Wed Dec 12 17:00:14 EST 2001 | mparker

Aw Dave - you guys are so fashionable, are the dark green and red combos seasonal? caramel brown like a Pale Ale? I once heard that the green was chosen because it gives the best color contrast for white silk screens. As for color reflecting or abs

Solder mask

Electronics Forum | Tue Dec 11 22:31:40 EST 2001 | davef

I'd be surprised if solder mask color is causing your delamination. We use various solder mask colors on FR4 boards and notice no difference. * ~99% of our boards are a medium green * ~1% of our boards are dark green * One of our boards is caramel b

Solder mask

Electronics Forum | Tue Dec 11 18:32:30 EST 2001 | edmentzer

Does anyone have experience with different colors of solder mask. I am interested to know if a clear or light color mask is better in the reflow process. Most of the boards we do have a green solder mask. It seems to me that I read somewhere that

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