Full Site - : solder mask repair theory (Page 9 of 19)

Which PCB testing method is better for you?

Industry News | 2019-11-05 22:21:39.0

Very often, customers ask details about what kind of testing do we use? How do we charge it? Do I have to pay every time or only for the first time? Is this testing safer and better than other one? etc In this blog, let's discuss the various kind of testing and their advantages and disadvantages. Some of them are mandatory, some of them are optional; Some of them are fast, some are slow; some of them are more reliable, and some not. Hope you will have a better understanding about various kinds testing and make better decision on your next PCB order.

Headpcb

Re: solder mask

Electronics Forum | Sun Aug 15 05:45:15 EDT 1999 | Brian

Boca, Dave Sorry, but I cannot let this go. I'll go along with you that, at the time that the Montreal Protocol was initially signed (September 1987), there was no scientific proof that CFCs etc. were causing ozone depletion. There was, however, ve

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

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: water soluble solder mask

Electronics Forum | Thu Oct 14 23:19:25 EDT 1999 | Dennis O'Donnell

Water soluble masks are great in my book. After having used the latex type, I found that the water soluble will save a lot of time. I dont't use a closed loop system, but I do have a filter on my discharge line. I have not experienced any filter c

Re: Solder Mask repair

Electronics Forum | Mon Apr 17 19:44:20 EDT 2000 | Dave F

Ashok: Well, your customer probably has a good reason for wanting you to send them boards without holes in the solder mask. What is their goal for the mask capabilities after you get do reworking the boards? * Cosmetic surface coat? * Performance t

Solder Mask repair

Electronics Forum | Fri Apr 14 19:09:38 EDT 2000 | Ashok Dhawan

One of our customer insist on repair of solder mask even if it is pin holes or less than 0.010 sq in. area. Based on our knowledge bank, we though of thre options, there could be many more. 1. coat the exposed area with original solder resist (from

Epoxy for solder mask touch up

Electronics Forum | Mon Nov 08 12:47:52 EST 2004 | clampron

Good Day Everyone, I have a BGA rework that has some chipped/damaged solder mask that will need to be repaired prior to BGA replacement. I was wondering what materials are being used in the industry for this type of application. Any help would be g

Epoxy for solder mask touch up

Electronics Forum | Tue Nov 09 10:44:13 EST 2004 | russ

I guess i might want to throw this in for future reference. After speaking with our board supplier he states that this mask is fully cured when it reaches approximately 180C. I beleive this since we usually probe the repaired area after putting the

Re: no-clean mask for gold fingers

Electronics Forum | Sun Jan 31 23:03:57 EST 1999 | Dennis O.

| | hi, | | i am working towards developing a no-clean process for a customer at contract manufacturing facility. the assemblies have gold fingers on them. these are masked to prevent from any damage to them during reflow soldering. the earlier pr


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