Electronics Forum: tri (Page 151 of 941)

should gold pads be pretinned, what issues are known are there?

Electronics Forum | Wed Sep 18 17:21:19 EDT 2002 | slthomas

Dave, anything besides gold embrittlement to be concerned about if that concentration is exceeded? Never tried the stuff.

About the PCB gold finger contamination.

Electronics Forum | Thu Sep 19 21:26:52 EDT 2002 | davef

Sam, You're correct. And that's what Joe would prefer to do with his contaminated boards, but he's trying to keeping line running, I believe.

MPM AP25 Parts

Electronics Forum | Fri Sep 20 15:44:00 EDT 2002 | pjc

Do you have a Panasonic & Toshiba camera? What are the MPM p/ns your looking at? Whats the problem? Noise perhaps. If noise try checking the metal cylinder to the right of the camara housing. The set screws can loosen up. Tighten up all the screws.

Recycling Matrix Trays

Electronics Forum | Tue Sep 24 14:48:10 EDT 2002 | ChrisN

Looking for outside company that recycles matrix trays and plastic reels for surface mount components. I am trying to find a company that will provide boxes and be willing to pickup our reels and matrix trays to return back to suppliers for refund.

Feeder tape size

Electronics Forum | Fri Sep 27 08:36:27 EDT 2002 | alewis

We are a manufacturer of placement machines and I believe that you asked if there was a reference that can be used to determine the tape sizes for most SMD packages. We review the catalogs from Practical Components and Top Line to determine tape size

No Clean for BGA's

Electronics Forum | Wed Oct 09 16:43:50 EDT 2002 | mjz289

Kester 256 has also worked tremendously well for us. We have soldered thousands of BGAs from 156 balls to 780 balls .8mm pitch with no solder problems (shorts,opens or voids) and no residue problems. Give it a try.

Silver Paladium coating

Electronics Forum | Wed Feb 19 21:07:42 EST 2003 | Dumb Blonde

This may sound weird, however, I have to ask... what is pladium? I have a jeweler trying to sell me a ring made with pladium. Why can I not find information on it? Will someone please email me with information.

Silver Paladium coating

Electronics Forum | Wed Feb 26 10:06:35 EST 2003 | bing

Try TI's website. They have almost completely phased in the use of Paladium on all of their IC's. Their website has many useful technical papers on Paladium.

solderability

Electronics Forum | Fri Oct 11 09:54:34 EDT 2002 | russ

For whatever its worth, IPC does not require a full fillet in this situation. If it has to be a complete fillet due to contractual agreements you may want to try and preheat the board first with hot air or something and then solder. Russ

extra zeros very confusing....

Electronics Forum | Tue Oct 22 18:29:30 EDT 2002 | bdoyle

man, I've gotta learn to read the whole thread before trying to figure out a problem. I literally stared at your post for a good 5 minutes.


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