Electronics Forum | Mon Nov 13 02:04:07 EST 2006 | guess
I suggest to review your board , do both boards have fine pitch QFP's or TSSOP's? . If yes, best approach is to finish board at a time to ensure best quality . You can refer to your solder paste TDS to justify why you choose this approach.
Electronics Forum | Fri Nov 10 17:00:05 EST 2006 | darby
Yep. If speed is not an issue a Heller 1500 will pretty well do you fine unless you are trying to process a brick. A Heller 1700 will not give you any more heated length, so don't get sucked in to that one. However, they are a little more fun to pl
Electronics Forum | Sat Dec 16 14:08:32 EST 2006 | slthomas
"I did change blades and we did try another printer, problem still exists and it is across several different products but only that line." Not sure what that means since you reference "only that line" in the same phrase as "did try another printer".
Electronics Forum | Thu Dec 21 10:27:24 EST 2006 | realchunks
>>> Now you must take into account your total board mass as well. If you have tons of heat sinks, or parts on the other side that can affect your profile, you should have them on the board when profiling. That�s where the "engineering" part in all
Electronics Forum | Fri Jan 05 22:10:45 EST 2007 | fastek
Craig- Your point assumes most if not all of the problem lies in inferior equipment. I understand your point but I believe that an excellent process can overcome the fact that you don't have brand new and pristine equipment. As an example you can
Electronics Forum | Wed Jan 17 17:17:21 EST 2007 | russ
i would say that you are there already. with 10,000 DPM0 you have a 1% fallout, you are at 99.9 basically. 1 out of a 1000 boards will fail? of course one thing we need to know is how many opportunitites do you count for a chip resistor for exam
Electronics Forum | Mon Feb 05 10:12:32 EST 2007 | slthomas
The use of booties isn't required per se, just considered a standard step necessary to reach the 10,000 target. You also need to vacuum (central vac system, NOT exhausting into the room) daily, mop weekly, have a one piece floor, blah, blah, blah....
Electronics Forum | Tue Feb 20 06:31:58 EST 2007 | mika
It depends on what VME box build it is. Rev. C, D, E etc. There are upgrade kits for the complete VME chassi and it includes some re-wiring also. For this You must contact UIC and provide them with the machine ser.nr, current Os-system, UPS s/w ver.
Electronics Forum | Sat Mar 10 11:45:48 EST 2007 | Cmiller
If you need part tracking and lot tracking your decision may be made for you. I believe the Universal equimpment has complete traceability, it is an option. You scan a reel each time you load it onto a feeder and it can track what parts from which re
Electronics Forum | Tue Mar 13 06:50:57 EDT 2007 | realchunks
Hi Narksh, Well, for a quick over view, I'd suggest conveyors between all your equipment too. Also board handling equipment like bare board loader, buffers, shuttles... It really depends on how focused you want to get. When choosing any part of
