Electronics Forum | Sat Feb 06 07:39:30 EST 1999 | Wayne Bracy
| | | I am looking for a piece of equipement that can | safely remove silicon die(200mil by 200mils) from a LTCC board. My present method involves a dental drill which often goes through the dielectric layers and causes scrap. | | | | |
Electronics Forum | Mon Nov 30 23:45:20 EST 1998 | Kallol Chakraborty
Hi folks , Lately we are seeing a lot of rawcards with black spots on the pads - most of them have Au finish(immersion gold) . We did a lot of inspecton after wave solder and found that only (fine pitch) QFP are affected the most. Our inspection /te
Electronics Forum | Sat Mar 16 18:06:31 EST 2002 | davef
First, you're correct. Trace repair and rework is not for the faint of heart or novices. Second, our "girls" prefer a dental drill type tool [Dremel Flexshaft], rather than the clumsy Dremel type from Wal-Mart. They also like a vice with a unversa
Electronics Forum | Mon Mar 18 11:04:39 EST 2002 | slthomas
At a previous employer we used a pneumatic dental type drill with nice results. The 1/4" hose is much more flexible than a flex drive cable, there's no motor module on the work surface, and the foot pedal for the air a little more elegant than two-h
Electronics Forum | Wed Dec 20 21:01:12 EST 2000 | Dave F
Talk about glam jobs � About once a month, we�d go over to the slaughter yard to get cows� teeth for Dr. Mueller. Then we�d fixture them on their side and run them in a machine that scrubbed them with a brush for weeks. The cool thing about cows te
Electronics Forum | Tue May 09 22:39:55 EDT 2000 | Dave F
Hi Earl ... You movin' to Montana soon? Gonna be a dental floss tycoon, eh? The adverts don't bug me near as much as the weekly "Duh, I've got (you choose): * Solder balls * Tomb stoned caps * Poor soldering with my NC flux ... question from the m
Electronics Forum | Fri Sep 26 11:38:14 EDT 2003 | slthomas
I'm not sure if I'll get to this next week, and since I'm gone after Tuesday I thought I'd get this out of the way. The Global Economy has gotten the best of this guy. I don't know where I'll land when the dust settles, but you can be sure that if I
Electronics Forum | Tue May 26 10:52:02 EDT 2020 | spoiltforchoice
No idea, could be a weird translation error, but its certainly something I have seen . For an FLX they just ask for this "5-6 bar, clean, dry, oil free, filtered 2 µm, connection diameter 8 mm", 40litre/min Personally I would go with a mo
Electronics Forum | Tue Dec 07 16:34:54 EST 1999 | Russ
Wolfgang, I appreciate your continued feedback! The main reason that I shortened the Time Above Liquidous (TAL) was it appeared that I was burning off all of the flux from the paste. By shortening the TAL to 45 seconds and decreasing peak temp to
Electronics Forum | Thu Aug 16 20:11:21 EDT 2001 | davef
Hussman is correct. Make those people quit. [Just walk-up, pimp slap 'em, grab their dental pick, and say "Dave says you can't use this any more. I'm just following orders."][Trust me, this is much smoother than the "Tonya Harding Approach" that I
