Electronics Forum | Thu Mar 29 18:14:19 EST 2001 | kerryn
Hi Dave, I looked into the South Coast Air Quality Management District Clean Air Solvent Certification when I was having my problems with VOCs. The problem with the SCAQMD CAS Certification is that it only certifies chemicals as they are found in t
Electronics Forum | Fri Apr 06 09:02:20 EDT 2001 | CAL
FYI- Toe Fillets have not been required per IPC 610b/c (they are nice to have though). Remember before Solder paste inspection equipment The Solder powder type/size, stencil type, and apertures are what defined volume. The need has not been until rec
Electronics Forum | Tue Apr 24 15:11:30 EDT 2001 | davef
For US folk ... "The U.S. EPA announced on April 17, 2001 that it will proceed with its Toxics Release Inventory (TRI) rule to significantly expand the information available to the public about lead emissions in their communities. The final TRI lead
Electronics Forum | Tue Nov 28 12:05:04 EST 2000 | Garth Fitzner
Hello from Edmonton Dr. Abell! And hello from a currently enrolled Athabasca University student as well! My company is a small one. We have 12 people, only seven of whom are the assemblers and testers. We manufacture our own products and have our ow
Electronics Forum | Wed Sep 20 09:37:15 EDT 2000 | Erick Russell
Determining cost of rework is based on usage and application. Photonic soldering saves an average of 5 minutes per rework site in process time and may save a significant amount of labor. Depending on volume, and specifics on the application, the cos
Electronics Forum | Thu May 03 10:14:10 EDT 2001 | davef
Now, I'm not going to talk solder balls, in a traditional sense. I have an image of bilbous, globs of excess solder near the ends of PTH leads. If that's not what you have, ignore the following [and help us understand your situation better] ... Yo
Electronics Forum | Tue May 22 23:49:58 EDT 2001 | jones
I've never tracked the life of a stencil, but if your seeing an decrease in the life of your stencil you may want to look at the printer itself. What kind of printers are you using? I'm more familiar with MPM screen printers and I have seen were cert
Electronics Forum | Mon May 14 14:51:36 EDT 2001 | Brian W.
Personally, I prefer the OSP. I get a flat surface to deposit paste on, resulting in more consistent solder paste volumes. With HASL, the amount of plating and the mounding affect the paste deposition. I have even had it affect the placement. The
Electronics Forum | Mon May 21 17:37:51 EDT 2001 | davef
IPC-2222, Sectional Design Standard For Printed Board For Organic Printed Boards talks to scoring parameters in para. 5.3.1. You can obtain the standard at: http:///www.ipc.org. and Document Center [http://www.document-center.com/home.cfm/sid=71285
Electronics Forum | Sun May 27 11:12:02 EDT 2001 | davef
Listen, you can figure this-out from your particular situation. Do this: 1 Talk to your operators and determine if they see viscosity changes in your materials. 2 Talk to the people doing viscosity measurements and determine if they see viscosity
