Electronics Forum | Fri Feb 06 10:23:15 EST 2004 | pjc
Hi Stefan, We had a good operator. He adjusted the heat and pressure to get it right on the used tape. We re-used tape from Samsumg & Toshiba TSOP44, QFP64 ASIC as well as a connector on 56mm tape when they came in tray. We also did on many SOICs of
Electronics Forum | Thu Mar 04 15:34:55 EST 2004 | adlsmt
I agree with above but would like to add: 1. You may want to try something like Bioact SC-10 wipes to clean your stencils. If what your using works good stick with it. Ultrasonic cleaners are expensive, take up room and my experience has not been go
Electronics Forum | Sat Mar 20 08:54:28 EST 2004 | Primus
As I said, I'm new, and I've never seen the adhesive dot method. I'm certian our company will stick with paste, though, because we make our own boards (with a vertical plater no less!!!) and contamination is quite an issue. We do a fair amount of rew
Electronics Forum | Thu Apr 01 12:31:39 EST 2004 | russ
one more thought on this, When these boards are built new do we not have solder paste on the ground pad and then reflow? Has this caused any misregistration for you? I am assuming that you are not pasting the leads with the ground pad correct? I
Electronics Forum | Fri Jul 16 15:07:11 EDT 2004 | waveroom
Good question, we are a distributor and have offered lots of different magnifiers. We finally decided to stick with only one brand. It's not the least expensive but the quality and warranty are superior to any other. That would be OC White. I replac
Electronics Forum | Thu Sep 16 07:07:34 EDT 2004 | C Lampron
Hello Chris, "It sticks up about 3/8" or so above the surface of the board." Is this over the ridgid portion of the PCB or in between? Is it possible to create a support fixture for printing that has relief that will allow the flex to bow downward i
Electronics Forum | Fri Dec 10 08:42:37 EST 2004 | mattkehoe
We had some bad experiences trying to work with soldermask defined BGA pads. If the opening in the soldermask is right to the edge of the copper/pad without a space it can leave reside on the pad and nothing will stick to it. See http://www.sipad.com
Electronics Forum | Wed Jan 12 12:11:51 EST 2005 | Grant
Hi, Are you coating the bottom of the palette with flux? What's the material of the palette. I have not seen that, but we did have some weird problems when we did not add flux on a virgin palette, but once it dirtied up a little it was ok. We had
Electronics Forum | Fri Feb 11 18:59:21 EST 2005 | primus
We have been using Tape and Reel on our GSM for the SOIC-8 packages for a while, and it's working pretty well. Less operator error, less reloads, less jams (provided you take good care of the feeders) and LESS TUBES STUCK IN MY VCD SEQUENCER!!! I hav
Electronics Forum | Wed Mar 02 10:49:45 EST 2005 | Dave Erbst
Try checking your Z height and also make sure that they are cleaned regularly. If the Z height is off your will be pressing your nozzles into the holders thereby causing them to bind up inside the holder. Replace the springs periodically since they d
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