Electronics Forum | Thu Jul 20 16:39:21 EDT 2000 | Bob Willis
There are so many people with this knowlege I would suggest some form of evening class. We did use to do it over here but it did not have many takers. I lecture every year at two universities and schools its great fun and don't you people ask the mo
Electronics Forum | Thu Jun 22 17:17:27 EDT 2000 | Bill Schreiber
The U.S. Environmental Protection Agency (EPA) has finally taken a progressive position by creating the Environmental Technology Verification (ETV) Program to verifiy the environmental safety, user safety and efficacy of products prior to their purch
Electronics Forum | Thu Jun 08 10:52:37 EDT 2000 | rolandos1
Hello, My name is Rolando and I want to know more about gold fingers protectors. Our current problem is on SMT line which is used with one board with gold pads and while normal production we get solder paste contaminations on these pads, recently o
Electronics Forum | Tue Jun 06 13:02:44 EDT 2000 | eott
Charles, I am senior engineer in the environmental test lab for Agilent Technologies(HP Spin off). I am working on qualifying a large SCI(Solder Collumn Interposer) CBGA package. The package is 1mm pitch. The balls are .72mm. The number of balls ar
Electronics Forum | Thu May 03 18:13:40 EDT 2001 | johnthor
what are these kids doing in the dark with band-aids anyway? I'll bet you could get the same effect with Kapton tape (maybe yellow light?) Seriously, I use the IIT proframe Dave mentions down to 25 mil but have gone back to a permanently mounted foil
Electronics Forum | Fri May 04 12:28:12 EDT 2001 | slthomas
We have had some success printing 20mil pitch with our IIT Proframe. It takes some babysitting, and you don't want your operators to be changing these things out every hour or you'll be buying lots of them. Pulling tension in one direction gives r
Electronics Forum | Thu May 03 10:16:45 EDT 2001 | caldon
I like the Glenbrook x-ray systems. Simple and easy to use and they have a great support staff. We are using the Jewel Box 70 and are extremely pleased with it. They have complimentary software for analyzing the balls that is excellent. For the price
Electronics Forum | Mon May 07 09:44:56 EDT 2001 | wister
Normally,titration kit is used for low solid flux,provides a more accurate method to determine the flux concentration so as to assure consistent soldering results.There are three chmicals in the process.test kit solution,indicator and your flux.add d
Electronics Forum | Tue May 29 20:22:19 EDT 2001 | davef
Well, no fault with your calculations from here. They appear to be correct. [Logic doesn't appear to be off to far off base, either. An epiphany, eh?] As mentioned in an earlier posting on this thread, consider following the recommendations of IP
Electronics Forum | Thu May 10 13:58:26 EDT 2001 | tomgervascio
It sounds like 3D imaging is much better at fault detection for partially visible leads like SOJ packages. Can any of the 2D systems actually do a solderjoint inspection on the outer rows of BGAs or is the angle too acute to accurately look at these.
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