Electronics Forum | Mon Aug 18 15:04:25 EDT 2014 | rgduval
Off hand, I can't recall a "formula" for how long boards could sit in a specific RH environment. I've done a couple of quick Google searches, and can find a bunch of information on the dispersion rate of moisture in various PCB materials, but, nothi
Electronics Forum | Mon Dec 20 16:22:45 EST 2010 | rkondner
When you say Fine Pitch is this .5mm or is it smaller? I wonder what problems they experienced with HASL, the only problem I recall hearing was the surface was not flat. When applying paste with a stencil I can not see how the flatness is an issue.
Electronics Forum | Thu Apr 18 21:47:59 EDT 2002 | ianchan
Hi, I did IT sales part-time to support myself with the fees required thru' 3 years of engineering school. so have had my share of "pointy hair" dudes (recall dilbert's office boss) breathing down my neck before.*grinz* Yep, complaining by itself a
Electronics Forum | Fri Nov 26 02:49:46 EST 2004 | Mike
Help! I have a small SMT section that produces low volume but high mix assemblies and, therefore, has over 300 devices. I am looking for a low cost flexible storage solution and believe I have an idea which I recall is available but I cannot find w
Electronics Forum | Mon Aug 28 10:51:51 EDT 2006 | SWAG
http://www.brigarelectronics.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=BE∏uct_Code=GP-MF552&Category_Code=C Seems to be working well. I didn't remove the housing from the machine = recal. The placements are right on, it's just a bit out of f
Electronics Forum | Wed Apr 04 19:10:20 EDT 2007 | rgduval
Pete, Top-side temp might be an issue. What's the easiest way to check it? I seem to recall some thermal decals that we used to use a couple of jobs ago. I spoke with the flex manufacturer, and they recommended 4 hours at 250 degrees pre-process
Electronics Forum | Thu Feb 03 11:20:15 EST 2000 | John O'Brien
This is getting to be a more common practice, especially with the application of a 2-D bar code directly to the board (via laser, ink jet,etc.) Some really major companies are jumping on the bandwagon because it also allows treating each board as a l
Electronics Forum | Fri Oct 08 08:26:03 EDT 1999 | Carol Zhang
| | | I have a board, 4 spacers needed to be soldered on the board | | | first with the normal 62Sn37Pb alloy. Then, capacitors are manually soldered on the boards. The density of the board is quite high. If we wave soldered capacitors first, ther
Electronics Forum | Fri Jun 18 17:45:30 EDT 1999 | Scott Cook
| This is my second attempt at it. I still own a home near the golf course South of Bentley. You guys can't mean you had your beginnings there. | | Moonman Ah, My moonie buddie......not our beginnings. But I was mid-stroke in the old career. Mike w
Electronics Forum | Fri Oct 26 17:01:52 EDT 2001 | davef
We process no Teflon boards. Companies, such as Rogers and Taconic, make laminates of Polytetrafluoroethylene [PTFE] er �Teflon�. Common �Teflon� laminates are: * Woven glass / PTFE * Random microfiber glass / PTFE * Ceramic / PTFE * Woven glass /
