Electronics Forum | Fri Feb 21 20:01:14 EST 2003 | MA/NY DDave
Hi This is a good one. Let me take a stab at it. First remind me, why is this air coming in carrying a charge. I think I remember yet it is always fun. Also hopefully it isn't carrying any compressor oils. There are some companys that make other t
Electronics Forum | Sun Mar 09 18:33:04 EST 2003 | Dean
Tact time is a poor measure of your throughput capability. The Number of boards produced per hour or shift or 24 hour period is the true measure of what you are really doing. Your theoretial "tact time" can be used as a metric to judge performance,
Electronics Forum | Fri May 30 18:57:44 EDT 2003 | russ
We place a large amount of .4mm (what is that in microns?)QFPs every day. I would much prefer a BGA package. Reasons are 1. Pitch is greater which provides a larger process window 2. Alignment is easier because you don't need vision for BGA if you
Electronics Forum | Tue Jun 17 13:12:57 EDT 2003 | Jipp
We designed small PCBs (typically 2"x5")for our some of our products for quite some time now. We did not use PCB extensively and just hand-produced everything but... We now use them more and more and they got more sophisticated. we're heading for 20
Electronics Forum | Wed Jan 21 12:06:48 EST 2004 | Claude
What is the most effecient form of heating ,ie calrod, IR, convection , or a mixture ? to produce a good thermal profile on a wavesoldering system on thermally challenging multi-layered boards? Thanks, Adam Adam, I agree with Pete C. Forced co
Electronics Forum | Mon Jan 26 03:45:37 EST 2004 | Vinny
Hi All, We are producing a veriety of RF related PCBAs in which we see Unsolder/Mislaigned on a regular basis. In these baords usually one of the pad is connected to a signal trace and the other pad is connected to very huge ground plane. This gro
Electronics Forum | Sun Feb 15 21:35:34 EST 2004 | charlie
I am looking to purchase a tape and reel > machine. I have advertised on SMTnet for one. I > have no experience with this type of machine, so > can anyone recommend a brand to buy or one to > avoid. I require a machine to reel up parts from > st
Electronics Forum | Fri Mar 26 12:26:31 EST 2004 | Mike Konrad
Hi Patrick, With all due respect, it is easy to quantify zero. You made a claim that your flux produces ZERO residue. There are several industry-standards (IPC and Military) of determining the cleanliness of post-reflowed circuit assemblies. Th
Electronics Forum | Fri Jun 11 17:23:12 EDT 2004 | steve
Sorry for coming in so late on this discussion. For what it is worth. The dross reclamation equipment that I have looked into cost's alot of money. Thus you better do the math on the average amount of dross produced versus the cost of the equipment t
Electronics Forum | Wed Jul 28 18:51:52 EDT 2004 | gregoryyork
Found problem many years ago by chemical extraction and IR analysis, produces alarming amounts of plasticizer from under cured or incorrect mix of hardener to liquid photoimageable solder resist. Problems this causes are endless and many things blame