Electronics Forum | Tue May 31 11:56:12 EDT 2005 | chunks
Hi Matt, Get definitive answers! Contamination on the HASL finish?: From the pix you posted, it looks like something fishy is going on. I�d reject them back to the board house and demand an answer. Most board houses and purchasing people will g
Electronics Forum | Fri Jul 01 18:00:44 EDT 2005 | mrduckmann2000
RB, We have a gold finger problem here at our plant. Our kapton tape came off in the wave process and now we have 8 PCB's that have silver fingers. We are waiting on our new A.P.E. SRS-069 Gold Finger Plater. This mircle machine is going to fix a
Electronics Forum | Thu Jul 28 05:41:22 EDT 2005 | K
Hi guys, Have any of you encountered harwin connector M80-647 in the past? Have you noticed any problems with the reliability of the component, solderability and 'reworkability' (thats a new word for sure)? Heres a PDF of the component; http://www.
Electronics Forum | Thu Aug 11 21:43:19 EDT 2005 | Ken
Those temp stickers are useless unless you can stick them into the copper barrel. They can only determine "skin" temperature which has nothing to do with what is happening in the barrels. Your solder is filling the barrel then going cold. I'll gua
Electronics Forum | Fri Aug 19 21:12:58 EDT 2005 | grantp
Hi, We are not based in the US at all, but the US PCB manufacturers are the only ones that combine good customer service, the ability to product rapid prototypes without huge setup costs, and meet deadlines. As the global electronics market has chan
Electronics Forum | Wed Aug 17 13:57:27 EDT 2005 | ppwlee
We have encountered what appears to be mask discoloration after wave soldering. The areas of concern coincide with the areas that were exposed selectively by fixtures during wave soldering, dominated by one date code of PCB with a slightly different
Electronics Forum | Sun Sep 11 01:25:34 EDT 2005 | Mika
I agree with prior postings, but there is no perfect yes/no answers, right (left)...? Only good questions to be answered. I think it is overkill to have an extra stencil, why do you need it? (That is if you have a proper stencil cleaning equipment).
Electronics Forum | Thu Dec 08 14:26:58 EST 2005 | chunks
Start with your board first. Do you have resist/mask between the fine pitch? Is the finish HASL or a flat surface? If there is no mask/resist between the fine pitch leads you may want to reduce the apertures 5%. If the board is HASL, that means yo
Electronics Forum | Thu Dec 22 08:57:08 EST 2005 | davef
Immersion metal baths also rely on alchemy-like magic. If you take a piece of copper and dip it into an aqueous solution of silver ions: Presto Chango! Within seconds the copper will be coated with silver. Of course, there is some additional magic re
Electronics Forum | Sun Dec 25 18:54:04 EST 2005 | mariss
We are experiencing fracture problems with 0805 X7R capacitors. The capacitors seem to fail in tension; during hot-air rework they come apart in two pieces with the fracture near the metallization end. Only X7R SMT components are affected, C0G and Y
