Electronics Forum | Fri Jun 09 05:18:07 EDT 2006 | Rob
Hi Shawn, that you're baking the components makes me think that they are either old, or have been sitting around for a while (or none of the above & you are really dilligent!) Whilst baking will sort out the MSD issues (such as popcorning) it will
Electronics Forum | Sun Jul 23 18:28:59 EDT 2006 | mika
Please be a little bit more specific about your problem. 1. is it all components on every board? 2. is it only components placed from one machine in the line? 3. is the solder paste registration ok? 4. is this a new product, that have never been runn
Electronics Forum | Mon Sep 11 08:52:12 EDT 2006 | Amol Kane
lead-free processes involve higher temperatures. if you run this PCB thru the reflow oven, the worst possible scenario is that the board may melt and deform. even if it doesnt, it may delam internally (and or the bare board reliability might be compr
Electronics Forum | Wed Oct 04 21:22:31 EDT 2006 | slthomas
lol! Gonna have to call BS on your search engine complaint. I don't believe you remember all that so you MUST have searched it. Or would I be flattering myself to assume that you took the time to look it up? Nice to hear from you Mr. Fish. I guess
Electronics Forum | Fri Oct 06 14:54:30 EDT 2006 | Cmiller
I believe the early UP3000's had some significant mechanical issues. We have 3 UP3000 Ultraflex machines. We bought them used. These are great machines and easy to program but you need to have operators that really understand the machine. I dont thin
Electronics Forum | Thu Oct 05 11:40:49 EDT 2006 | Mario Scalzo, SMT CPE
David, We have seeing this more and more in the recent weeks. In a nut shell, yes; we believe that the voids that you are seeing are from the trapped air in the via from printing over it. If you could remove the Kapton tape, this might help. Also
Electronics Forum | Thu Oct 19 13:38:29 EDT 2006 | SWAG
We use random local fids on our Universal equipment - (they don't create a centerline placement point). On your equip., maybe you could try to shoot/dive-bomb the QFP(s) all by themselves using the 2 "random" local fids as your baseline reference po
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".
