Electronics Forum | Tue Nov 09 21:10:02 EST 2004 | davef
Some GD saleman [Oops, make that very nice saleman. He took me along for lunch.][Just kidding, all you sales types out there. You know how much I like to put burrs under your saddles. ;-) We kid because we care.] got into the catacombs to wake-up o
Electronics Forum | Tue Nov 09 22:43:39 EST 2004 | Fengang
Hi all, Yesterday I met a VCO(Vector-Controlled Oscillator) supplier, who provided the component spec -- peak temperature over 240 centigrade stands 7secs. But this spec is obviously different from our spec -- 260 centigrade 10secs. They told me th
Electronics Forum | Fri Nov 12 10:47:03 EST 2004 | davef
Fengang: You say, "And I have investigated a lot of component manufacturers, it seems like that most of them just change the plating of components' lead for lead free. That means lead free process has little impact on the component manufacturers, is
Electronics Forum | Fri Dec 10 15:41:43 EST 2004 | davef
For standards: Electrostatic Discharge Association (ESDA); 315-339-6937; Fax: 315-339-6793; http://www.esda.org; info@esda.org; 7900 Turin Road, Bldg 3, Rome, NY 13440-2069 You should build your ESD program around the requirements of ANSI/ESD S20.
Electronics Forum | Fri Dec 17 08:05:00 EST 2004 | davef
Your solder paste is talking to you, follow its message. Listen to the paste. Be at one with the paste. If you insist on ignoring the message of the paste, add more paste, if you just need to complete the last board or so, but you really should ju
Electronics Forum | Tue Jan 25 09:15:02 EST 2005 | Marc A
Good info, thanks for passing along. The company I work for (equipment supplier) ran some tests with lead free material in air and N2 environements for reflow. In the air reflow environement it was noticed that the material does not spread, much li
Electronics Forum | Fri Feb 04 08:15:02 EST 2005 | aj
We are starting to look at doing some trials at the mo. I have attended a couple of seminars with one on Wave Soldering coming up soon.Loads of info. now have to make sense of it all. Just a couple of questions/advise on how other people have approa
Electronics Forum | Tue Feb 15 18:09:45 EST 2005 | GS
Hello everybody, according to your experience, what is the allowed or suggested (by Suplliers,or Standards,or best pratics) shelf life for components (SMD/PTH) from fabbrication date to the soldering date ? Let's consider best case when compon
Electronics Forum | Thu Feb 17 15:01:23 EST 2005 | davef
We're not familiar with your DYMAX #984-LVUF. The problem is not with your conformal coating. The problem is with your 0805 [and not all of 0805, probably just those from a specific supplier]. This lack of coverage of components is called dewetting
Electronics Forum | Mon Feb 21 03:35:38 EST 2005 | abhirami
Thanks Grant and Dave. I have done extensive work on this and found some of the solder balls and solder flux does match my requirements. We have done many tests and have a good responses for both ceramic and plastic substrates. All is fine as long a
