Electronics Forum | Thu Nov 02 09:45:00 EST 2000 | bierleinb
I would check trace-pad interactions as you may be robbing heat from one of the pads causing uneven heating during reflow. Also, measure paste deposits on trouble parts to see volume depsoted across the pads. You should easily be able to do 0402s w
Electronics Forum | Mon Nov 06 10:52:52 EST 2000 | Glen Mantych
Glenn, we have been fighting perhaps the identical problem for nearly a year on a 1mm pitch BGA, we have performed numerous laboratory analyses of defective joints and virgin parts in an effort to specifically identify the cause of the no-wet joints.
Electronics Forum | Mon Oct 30 14:30:01 EST 2000 | JAX
Why would you want to buy Tooling Fixtures for all of your boards if you only plan on using them for the placement machines. I would think the extra cost, increased timeframe, and trouble of converting all current product would be a deterant. Have yo
Electronics Forum | Mon Oct 09 20:30:53 EDT 2000 | Dave F
Good story. Bad idea. You need standards. You need training in those standards. Call IPC to get both. You're wasting time and money with this cockamamey scheme to outsource your inspection standard making. And who says the bozo or bozette tha
Electronics Forum | Fri Oct 06 08:48:11 EDT 2000 | CAL
NJEV- You can contact me off line for my opinion on the Easi line :caldon@smtnet.com. Compared to past products this one was weak. Missing parts, Screws sticking out, the thermo-sensor was right next to the button so the longer you held the button th
Electronics Forum | Tue Oct 03 15:27:37 EDT 2000 | Wolfgang Busko
What�s wrong with your printing process and what improvement do you expect from dispensing ? I can imagine that it�s more convinient just to have this process inline, no worrying about stencils, cleaning, changing printer setting, just replacing a ca
Electronics Forum | Tue Sep 26 14:22:25 EDT 2000 | Donna Poire
I'm trying get some help/advice/consulting on using a Contact 3SX Pick and Place machine. We've been using the machine for several months and have been successful placing parts (nothing smaller than 0805's so far). Recently, we are experiencing err
Electronics Forum | Mon Sep 25 09:42:45 EDT 2000 | JAX
Bulk feeding components was and is a great idea, but it seems to stop there. Many P&P equipment vendors have bulk feeding capabilities and most part suppliers sell in bulk cartriges. The problem is in the use. How do you verify resitors that are sitt
Electronics Forum | Fri Sep 22 07:35:37 EDT 2000 | Henrik Eklund
Hello everyone out there, I have been working in the SMT process for a couple o years now, and now I'm partly responsible for the turret head component mounting process. We are about to buy new equipment and I want to do a capability study of this m
Electronics Forum | Mon Sep 18 20:54:22 EDT 2000 | Dave F
Periodically, our operators insert PTH LEDs on boards incorrectly, because of an apparent lack of standardization in the way various manufacturers package LEDs. For instance, for alternate parts some manufacturers make: * Cathode leads long, some ma
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