Electronics Forum | Thu Jun 22 09:33:40 EDT 2000 | Sal
Guys Just completed a PI build. And for the first time found that some chip components are skewing. The board is approximately 8x8inches and is six layer double sided FR4. To minimise and eradicate solder balling all the chip components have been co
Electronics Forum | Fri Jun 23 09:36:58 EDT 2000 | C.K.
Chrys: Funny that you mention that, but here at my company, our oven is blamed on almost everything: skewing, tombstoning, solder shorts, etc.... In fact, we often have to tell the supervisors, "It's not the oven because we don't turn the skewing
Electronics Forum | Thu Jun 22 16:48:17 EDT 2000 | MikeF
Most RTV's depend on atmospheric moisture to cure. You can put them in an oven with a pan of water and that will speed up the cure. I'd suggest about 150 to 180 degree F, time period to depend on the thickness of the RTV. You'll have to do some tests
Electronics Forum | Fri Jun 23 09:01:01 EDT 2000 | Dave F
Gary: According to what I was try to say, you have read me correctly. NOW ... I would not pay much attention to my 100�C delta T babbling. It is in our work instruction for setting-up the wave, but no one pays attention to it. And I, nor anyone e
Electronics Forum | Mon Jun 26 12:53:41 EDT 2000 | Michael Parker
I belive I once saw a picture of a Delta-T. It was in a very old Popular Science magazine. Some yahoo from Ohio wanted to put wings on his ol' tin lizzy. He also had some elaborate plans to convert his flat head V-8 to run off corn likker. I say chuc
Electronics Forum | Fri Jul 07 16:04:42 EDT 2000 | DONALD
We have an Ersa selective soldering machine here. We use the wire solder with the automatic feed. We dross and clean the pot roughly once a week. You can tell when it needs it by looking at the solder fountain. We do the nozzle at the same time. We c
Electronics Forum | Tue Jun 20 08:04:42 EDT 2000 | NIck
Hermie, The Camera is made by Sony and unfortunatly you can't just get the Box by it self they come as a matched set from the manafacter. If you could find a box by it self (second hand)its a hit or miss deal. Now the real bad news Sony is stopping
Electronics Forum | Tue Jun 20 20:22:15 EDT 2000 | Dave F
Hi Jack: Welcome!!!! Yours sounds like an interesting project. In response to your questions: A1. Each traditional L8 run requires 8 runs. So, how did you select a L8? A2. In addition solder height and volume as characteristics, consider deposit
Electronics Forum | Mon Jun 19 14:53:28 EDT 2000 | Mike Demos
I'm looking for some design paramters for perforated tabs. These are the tabs that connect the circuit board to the break-away pannel material. I've never used these before, but I've seen some that have reportedly worked well. These tabs are ident
Electronics Forum | Mon Jun 19 21:37:14 EDT 2000 | Dave F
Mike: Look a the Hadco DFM manual ( http://www.hadco.com/ ) Yano if you�re lookin� for uniformly smooth (not silky smooth) board edges, have you considered scoring to separate your boards? Scoring has: * Minuses (straight lines only, stress on so