Electronics Forum | Mon Nov 06 21:06:13 EST 2000 | Dave F
Thomas: Wheeee, a 40% failure rate. Now, that make your boss chase you around the room won�t it? As you indicated, x-ray won�t do dip about helping to identifying problems [or ball cracks either]. Consider using an ERSA scope [er whatever they ca
Electronics Forum | Thu Jun 22 11:42:29 EDT 2000 | Chrys Shea
Sal, Silly question: Were the parts skewed before they went into the oven? I've chased down a few similar reflow problems in my lifetime, only to find out it was a pick and place problem. Wrong nozzle size, bad nozzle, feeder not advancing all
Electronics Forum | Wed Feb 21 19:55:12 EST 2001 | davef
References on corrosion are: * "ASM Corrosion Handbook No. 13" [0871700077]. * "Electronic Packaging and Corrosion" ME Nicholson [0871702916]. Please explain how you determined that you have silver-sulfide contamination. Where is the silver comin
Electronics Forum | Wed Oct 17 17:43:27 EDT 2001 | davef
2) Open time: A 15-minute queue between paste, place, and reflow SB fine, assuming humidity is not too great. 3) Wash temperature: Yes. A wash temperature of 130-140�F SB fine. 4) Reflowed board was left too long prior wash: Are you washing: * After
Electronics Forum | Fri Oct 26 11:29:41 EDT 2001 | kaopsahl
I have two DEK 288s set up in our shop, we used to use a Fuji GSP_III. I could not possibly say enough good things about the DEKs - they are incredible. The only real complaint I have with them is that if an error pops up that locks up the software -
Electronics Forum | Wed Aug 21 14:11:13 EDT 2002 | kenbliss
Hey dragonslayr Just a follow up comment from your comments that you fail to see the significance to the value of the assembly. My point was that if the board is worth say 100.00 cost and you built 100 per day and 2 per day require manually rework
Electronics Forum | Wed Aug 21 18:24:24 EDT 2002 | dragonslayr
surely, a big picture perspective is in order to keep from charging off, tilting at windmills and waning Quixotic. Just to tic ya off a bit more (come on now, smile), would those 2 boards in rework have just one defect each or are there multiple def
Electronics Forum | Sun Nov 24 09:54:24 EST 2002 | davef
On a HASL board that has poor wetting on the pad, consider looking further downstream in the process than your assembly shop. For instance, take a look at the bare boards. Look for solder mask bleed onto the pads. This will show-up on the outside
Electronics Forum | Mon May 24 06:00:23 EDT 2004 | johnwnz
call me picky but doesn't hydrogen combust? maybe soemthing you could do is look at your process and your products and decide if you actually need to run in N2. Yes ok I can hear the crys now but seriously, for the vast majority of things if you have
Electronics Forum | Fri Dec 15 07:25:21 EST 2006 | kvanzill
Hello, I am seeing something new to me and I am hoping some one some where may have resolved this before. I am running a Panasonic SPF63 screen printer with Tamura (RMA-012-FPL) solder paste. Now this problem is hard to describe but I will do my bes
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