Electronics Forum | Wed Apr 21 10:37:34 EDT 2004 | russ
Only the manufacturer of this part can tell you if subjecting the entire assembly through reflow temps is okay. It is not a good assumption that "if a part can be hand soldered it can withstand reflow" there are many connectors/headers/buzzers/etc
Electronics Forum | Tue Jun 15 07:52:45 EDT 2004 | chandramohan
There are many manufacturers, but if you think of a Indian manufacturer you can choose very good manual printer - Rollo from Synergytech Automation Pvt.Ltd. based in Pune. Rollo has all the features of semi-automatic stencil printer which i think ver
Electronics Forum | Wed Apr 28 17:41:44 EDT 2004 | longpham246
Hello! We placed quite a few of 0402 with our CP3 using 0.7mm nozzle with the same feeder as you had. Pick up can be adjust and calibrated, but that is not the problem, I agreed with you on that part. The trick is you have adjust and play around wi
Electronics Forum | Tue Apr 27 16:51:46 EDT 2004 | russ
Steve, I didn't say "buy metcal" I said to contact them. I agree they are expensive to operate. But they do have a pretty good website and great knowledge on how to select the right tip. The thread poster appears that he needs to start at the begi
Electronics Forum | Thu Apr 29 10:49:05 EDT 2004 | pjc
Yes, using an illuminated magnifing glass helps. How well your board fixuring is on the table will effect print alignment on other boards loaded. 0.5mm & 0.4mm will require very good fixuring, like you can get with tooling pins if the board has non-p
Electronics Forum | Thu May 13 23:01:07 EDT 2004 | fastek
Unplug the tactile sensor and check the switch with an ohm meter. If the tactile sensor switch is good go in one of the drawers in the back of the machine and with the help of your schematics find the opto-module that controls the tactile sensor circ
Electronics Forum | Tue Apr 27 16:49:16 EDT 2004 | davef
Where blank are the balls on a BGA supposed be? UNDERNEITH, dammit!!! Fire that inspector. It's good that you have your balls imbedded in something, so that they are not rolling around. Beyond that, consider the five ball system! - No more than
Electronics Forum | Wed Apr 28 13:33:48 EDT 2004 | Rob
Thanks to all. The way I've been doing it has been crude and very similar to your method. I make an imprint of the bottom side and cut out areas where components sit and this imprint transfers over to a cardboard. When it comes time to run the second
Electronics Forum | Sun May 09 09:23:27 EDT 2004 | Sam
Harry, Yes, the model is AP-20 and the computer is 386. I think the system disk was damaged by floppy driver that did not do the maintenance before reading the disk. I have do the test with the common disk that insert to the driver after do maintena
Electronics Forum | Fri Apr 30 12:34:12 EDT 2004 | Bryan She
Hello all, these days I've met an OSP board testability issue. 1.OSP board 2.Solder paste:Kester R244 no clean paste 3.Print solder paste on test pad. Issue: There's brone(light yellow)flux residue on test pad,and the probe can't penetrate the residu
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