Electronics Forum | Wed May 29 00:28:11 EDT 2002 | alex_kirichenko
Hi Ben! I was in your position just over 12 months ago.. We use round appetures for BGAs and don't have any problems with it, as long as thiknes of your stencil is correct. As for baking BGAs befor placing. I haven't had any problems with devices
Electronics Forum | Mon Jul 22 00:21:43 EDT 2002 | lysik
If a OEM does the wrong thing tell the World. Tell every single person you know. But also do the right thing by them when they do the right thing. Tell the World. If it's right it's right. UIC seems to be doing the right thing right now. Their regist
Electronics Forum | Tue Oct 15 16:50:38 EDT 2002 | davef
All of these machines are excellent. Each has survived the test of time and abuse to hold unique positions within segments of the industry. So, your question is difficult to answer without proper framing. It's like asking what is the best vehicle.
Electronics Forum | Fri Dec 13 17:38:16 EST 2002 | porcher
We had the overhead music from speakers for about three years. When the bickering over station and/or content became too hard to deal with, we stopped all music. Disaster! For the last six years, we have had a policy of no Walkmans for new employees
Electronics Forum | Fri Feb 14 10:14:55 EST 2003 | bobbyv40
This thread brings up a interesting topic. A supervisor is answering phones and deciding whether or not a personal call constitutes an "emergency" or not. Is it ethical to inquire about anothers personal buisiness? In our sue-happy society I pity the
Electronics Forum | Tue Mar 18 09:11:14 EST 2003 | Rob C
With a standard valve and no-clean solder paste you may get a few good dots. But, repeatability will be terrible too many variable, air-pressure, board height (two post nozzle), valve time on/off, retract height, retract time, etc... A RMA paste wi
Electronics Forum | Thu Apr 10 10:05:30 EDT 2003 | stefwitt
I do assume the only machine capable of reporting rejected components is the placement machine. 2-3% is certainly way too much. Expect rejects ( out of visible tolerance ) in the permille range but not percent. If components are rejected with vacuum
Electronics Forum | Mon Apr 28 13:58:33 EDT 2003 | jonfox
Just make sure that you have it set up for 2mm advances (unless your parts are on 4mm pitch) also under your machine parameters, you may have to change the offset (Y only) for your trolley to be able to get to the proper pickup position. I used UFP6
Electronics Forum | Tue Jul 15 11:18:29 EDT 2003 | slthomas
It is an interesting situation....one that merits as much business philosophy analysis as technical analysis. I'll be getting my official 60 day notice today. Any criticism about our overseas suppliers (that were selected by sr. management w/o in
Electronics Forum | Wed Jul 30 22:37:15 EDT 2003 | Dean
I have been using a srt-1000 since 98. My guess is your heating up the part too fast. What is your heating rate (deg. C per second)? PBGA's do warp. Your profile should mimic your smt process (assuming you have no warping there). Also, check wit
