Electronics Forum: did coloration (Page 1 of 7)

Solder mask

Electronics Forum | Wed Jan 14 08:43:14 EST 2009 | prkonrad

I did not change my mind, I just said that we sat down with the manufacturer and showed them the 3-4 different color PCBs for one product. They agreed that it is not acceptable... and supply us only from one of their sites. (the different manufacturi

Vectra Question

Electronics Forum | Mon Aug 07 08:58:58 EDT 2006 | rlackey

Would you adam & eve it? the 3 stooges all on one thread. For the record the Texas Instruments Speak & Spell that I had as a small child had better software than our Soltec. (Even if it did spell Colour as Color)

MPM UP2000 problem

Electronics Forum | Thu May 09 01:43:56 EDT 2019 | compit

in my camera did not detect PCBs from light green laminate - did you try on a different color PCB?

Board Cleaning

Electronics Forum | Mon Dec 03 13:45:39 EST 2001 | amt

Can someone suggest the best all-purpose saponifier. I'm using an aqueous batch cleaner. I was using a saponifier with a blue color that worked very well but I did not have the manufacturers name.

Wave soldering problem - strange colour of the solder

Electronics Forum | Fri Jan 19 11:34:13 EST 2007 | realchunks

I thought the same thing but he did mention density. I threw out the color thing immediately - which is normal. But to NOTICE a density proble with set programs seem aby-normal. Unless one our maintenance guys got a hold of your machine for a PM.

Re: Gold Fingers Discoloration

Electronics Forum | Wed Jul 05 17:06:36 EDT 2000 | Michael Parker

Patrick- You have not given enought detail of the type of discoloration. Is it "white residue"? Can it be "rust" colored? Whatever it is, you fab supplier needs to be called in immediately and give you an exact reason for this failure. Just rubbing

Silkscreen turns Purple

Electronics Forum | Wed Sep 08 05:17:04 EDT 2010 | eddtsk

Hi, ran across a batch of PCB that has white silkscreen during receiving but turns purple/pink after our reflow process. SEM/EDX test can show there is no significant different element between the white and purple silkscreen. Can any help advice what

Re: The best way to erase flux from the golden fingers?

Electronics Forum | Sat Sep 02 10:18:16 EDT 2000 | Dave F

Yanno, I just thought of an addition to #3 above. Back in the ol' days (before computer drawing) there were rooms full of people, generally guys (with plastic pocket protectors holding colored pens and ... ) leaning on drawing boards, doing whatever

interchangeable stencil frame systems

Electronics Forum | Sat May 05 10:18:38 EDT 2001 | johnthor

yeah, we use the low static stuff too... except when the purchasing assistant did the company a "favor" and sought out something cheaper. Those times you want a big stick! The color confusion is because of the rose colored glasses that I wear. Joh

Solder paste change

Electronics Forum | Mon Mar 31 01:11:14 EST 2003 | yukim

Hi, we are about to change solder paste for cost issue. Currently using a no clean Sn63 solder paste and tried several others, all no clean, Sn63 and Sn62. Want to ask about reliability test: we did thermal shock test for 8 days. The flux residue cha

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