Electronics Forum | Tue Feb 19 11:08:22 EST 2002 | Chris Anglin
Guideline for Tenting Interstitial BGA Vias It is difficult to give a complete recommendation on via tenting without an idea what process conditions are required (ex: wave pass, double reflow, rework etc.). Via Pads (as Test Points) - On Bottom
Electronics Forum | Fri Feb 08 08:00:48 EST 2002 | caldon
Yet Again Dave spills his pearls of wisdom. Dave is correct in the moisture content wood absorbs. I know we have all visited factories with wood board holders and such. I have actually seen wood carts with drag chains. Also, keep in mind static can b
Electronics Forum | Mon Feb 11 13:00:00 EST 2002 | Roy Barton
I am looking for some equipment with a fairly undemanding capability. I would appreciate pointers to potential suppliers. Dispense size 0603 chips only, speed can be as low as 60 chips per minute. Only one type of component (ie one reel) is loaded.
Electronics Forum | Tue Feb 12 10:51:46 EST 2002 | stefwitt
Dave is right. There is no machine on the market which can handle a 1.5 m long "board". If you or someone else will have to tinker with a custom made machine, it will be less expensive to use a used machine ( I could be offering some used Siemens mac
Electronics Forum | Mon Feb 11 13:28:36 EST 2002 | stepheno
We have some BGA's that don't solder very well. They weren't properly stored in regards to moisture protection. The balls look dull and rough. After reflow there seemed to be a diffinate line between the balls and the solder on the PCB's. I think
Electronics Forum | Mon Feb 11 21:54:14 EST 2002 | davef
LONG TERM Your plans to buy a vaccuum bag resealer and a batch drying oven sound good as you say, but you�re correct. They will not help with this current situation. SHORT TERM If your connections are clean, free of pits and holes with a smooth,
Electronics Forum | Fri Feb 22 00:20:41 EST 2002 | djarvis
0.005" for a distance of 0.120". I supply the cad file - they supply the blades - SIX PER SHIM - $300. Try it, you'll like it! Take yer set of overpriced, dooverlacky, hoity toity, rickerpoodley and a fandoogally, titanium, teflon, whacko the didd
Electronics Forum | Mon Feb 25 10:32:06 EST 2002 | cyber_wolf
Jeezuz... Darby is right. High Tech Squeegee blades are a crock of BS.Don't belive the hype. Its a big scam to rake in your dough. We use .008" thick spring steel stock from McMaster. There is only one thing:The blades must be dried off thoroughly af
Electronics Forum | Mon Feb 18 17:27:03 EST 2002 | hgwells
Agilent has a great article on determining whether automated optical inspection (AOI) or automated x-ray inspection (AXI) is right for you. It's a PDF file that can found here: http://www.ate.agilent.com/EMT/LIBRARY/X-RAY/DOCS/59883661en.pdf To sum
Electronics Forum | Tue Feb 19 08:21:56 EST 2002 | jax
Armin, The obvious disadvantages for an in-line printer is initial cost and flexibility for smaller shops that depnd on high mix, low volume batch builds from their printer to support multiple projects at the same time. The advantage is quality a
