Electronics Forum | Fri Jun 05 15:06:26 EDT 1998 | Dave F
| I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it | a) a destructive test? | b) What is the measurement unit of this test? | c) Wh
Electronics Forum | Fri Jun 05 10:24:56 EDT 1998 | Earl Moon
| I have just been assigned to look into the ionic chromotograhy test on our PCBA but I have zero knowledge. Could anyone help to explain what is this test about? Is it | a) a destructive test? | b) What is the measurement unit of this test? | c) Wh
Electronics Forum | Sat May 16 19:31:27 EDT 1998 | Graham Naisbitt
Gentlemen, Please consider that ionic testing is designed only for detecting ionic contaminants. Yes there are instances of non-ionic contaminants that cause premature circuit failure. However, more importantly the prevailing specs are less than adeq
Electronics Forum | Tue Apr 14 18:01:28 EDT 1998 | Mike C
We received a letter from IPC concerning patent infringements (patents held by Matsushita Electric Industrial Co.) LTD (Panasonic) that may effect most of us who use adhesive to secure components to PCBs for subsequent wave soldering process. If you
Electronics Forum | Wed Apr 08 13:46:22 EDT 1998 | Scott Cook
| Sylvia, | I believe you will find that contrary to Scott Cooks submission, that the work carried out by Robert Clark of Hughes Missile Systems at (then) Tuscon Arizona formed the basis of the MIL-F-14256 spec which "Qualified?" or at least "Approve
Electronics Forum | Fri Mar 20 10:31:19 EST 1998 | Mick Jones
| I will be starting a conformal coating process soon, I am looking for any pointers on | 1) Best method for masking components, tape mask, liqued mask | 2) Which is best Spray or Dip? | 3) Compatiblity with no clean solder paste (flux residue) | I h
Electronics Forum | Fri May 31 17:04:02 EDT 2002 | davef
We use boots / shunts er wutt ever you call them to protect solderable component surfaces from wave soldering. Not sure how it would work in your case try: * Kinnarney Rubber 450 Main St. P.O.Box 37 Mantua, N.J. 08051 609-468-1320 fax 7438 http://ww
Electronics Forum | Tue Jun 18 21:17:00 EDT 2002 | Todd
Gee Ken, the old cart business must really be slow, I see you commenting on any old item in the forum in an attempt to hawk your carts and how they improve efficient factory operation. I have read your white paper and found it very entertaining to se
Electronics Forum | Wed Aug 18 09:20:22 EDT 2004 | QE
Davef, Sorry for the late response. I was trying to gather more info. The group with low ionic contamination levels came from one of our other facilities. We want to outsource more of our product due to increasing demand. Both groups use the same
Electronics Forum | Thu May 19 08:05:53 EDT 2005 | wigeon@telia.com
Hi, We are based in Korea, a manufacturer of > electronics for automotives. We are a small > company, so no "corporative discount" is > applicable to us. > > We currently have 2 SMT > lines and are about to invest one more. Our > production is
