Electronics Forum | Fri Aug 07 07:44:56 EDT 1998 | Earl Moon
| | | No sour grapes, | | | This has gone on too long. I expect no free advertising, nor do I seek it. It is clearly understood Bob is an industry leading consultant. What is not understood, at least by me, how he is allowed to "advertise" so freely
Electronics Forum | Mon Jun 08 15:01:02 EDT 1998 | D.Lange
| I work QA at an OEM in Alberta, Canada. I saw earlier posts on the smtnet regarding PCB haloing criteria. I am currently in a dispute with my PCB vendor over the acceptability of haloing (delamination) around plated through holes and vias on a lot
Electronics Forum | Wed Jun 03 07:13:27 EDT 1998 | Tom Tellinghuisen
| We have experienced poor adhesion of acrylic conformal coating to plastic bodied IC�s. The observed symptoms of this are a blistering or lifting of the coating at the surface of the component, although peel testing has revealed that this is not al
Electronics Forum | Tue May 26 15:49:05 EDT 1998 | Earl Moon
| | We currently bake plastic SMT parts in accordance with the IPC guidelines for moisture sensitive parts. Because we have double-sided boards that are subjected to either an aqueous or semi-aqueous cleaning process, we do a 24 hour bake at 125 deg
Electronics Forum | Tue Apr 14 15:50:45 EDT 1998 | Bob Barr
Justin, Thanks for the response to my dilemma. For once it's not just me! The parts seem perfectly solderable, but I will try the modification to the profile you suggested. I wonder if the retention clips may be letting loose from the holes they a
Electronics Forum | Tue Feb 19 10:09:48 EST 2002 | caldon
I always look at the support structure. This is where I feel the real Dollars and cents come into play. Sure you can calculate the derated value over months or years. But If your machine is in a "machine down" situation the derated value does not cha
Electronics Forum | Sat May 10 12:58:33 EDT 2003 | stefwitt
I find 100 feeder slots of 16 mm width quite sufficient. If there are two feeder tables, each table is ~ 36� wide. Even slow machines can travel that distance in less then 1.5 seconds. If I further assume, that an optimized set up may save 30-40 % o
Electronics Forum | Thu Jul 01 10:24:31 EDT 2004 | davef
There is no specification for �Ion Chromatography for Ionic Cleanliness�. The performance of your product in your customer use environment determines the level that you select. The good part for you is that have at least one pole that you can put i
Electronics Forum | Mon Jan 10 18:11:57 EST 2005 | Grant
Hi, I think I am having a bad MYDATA day. I have tried optimizing our MYDATA for the last time with this crap Myspeed software. It does not give any kind of solution unless it's perfectly happy, and so we have to run the machine again slower than i
Electronics Forum | Thu Apr 07 08:02:44 EDT 2005 | Grant
Hi, I used to run a clean room, and it's right, most of the dust is created internally. You will need to add some HEPA filtering to the area, and an air handling unit that can control temp and humidity as well to get correct environmental control.
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