Electronics Forum | Thu Jan 10 15:26:27 EST 2008 | jdumont
Yes thats always an awful site isnt it? It used to happen to use because an operator was opening the door during the cycle to check if it was done. I smartened up and fired the operator (for other stuff also) and put the washer on a pallet in a big y
Electronics Forum | Thu Jan 17 17:54:22 EST 2008 | dman97
Stay far away from the WS619 paste. It is a nightmare to get a decent solder joint out of it. And dont get me started on voiding issues with this paste. We eventually started to use Indium 3.2 lead free "water wash" paste and this drastically reduced
Electronics Forum | Fri Jan 11 00:32:16 EST 2008 | johnlee9210
Prior to packing the boards, we cover the marking on the IC by dispensing epoxy on top it. This is a way to protect our design so no one can copy it. We have a lot of boards and the optr takes a long time doing it manually. im thinking of using a pne
Electronics Forum | Mon Jan 14 23:02:52 EST 2008 | davef
You don't mention any particular IC or manufacturer or marking method. However, most IC marking is done with lasers these days. The laser actually alters the encapsulation so the only way to erase the marking is to remove the encapsulation. Otherwise
Electronics Forum | Sun Jan 13 01:08:51 EST 2008 | slthomas
Good luck with that. If you can find a source for 10X-40X zoom scopes on a boom stand with a fiberoptic illuminator for $200 let me know. The light systems new are about $250. As a point of reference, I think we paid about $2k for a Meiji system l
Electronics Forum | Sun Jan 13 01:40:40 EST 2008 | operator
The ones on EBAY are 20x - 40x on a boom with a 12 watt ring light. Yeah the fiber optic light will definitely run the price up. These are looking like the best deal around. I was hoping somone on here would know of a used equipment dealer or somethi
Electronics Forum | Tue Jan 15 16:50:44 EST 2008 | gregoryyork
Try Digitus - Microscope Camera with built in LED Lighting. Probably around 140 Dollars we just purchased three not tried mine yet but my reps like them and they go to 200X mag - incredible I think it is http://www.digitus.info thats what it says on
Electronics Forum | Mon Jan 14 18:19:35 EST 2008 | geb
Thanks for the info. I use the machine with a 1mil for resistors and capacitors and the machine with the 2.6mil for ICs (both have a 4mil.) This is because the r's & c's seem to benefit from the 1mil, more than IC's. I was thinking of making the mach
Electronics Forum | Wed Jan 16 03:43:57 EST 2008 | muarty
I am doing a project for my company which will ultimately lead to buying a BGA rework station. I would be very interested to hear any of you guys' views and experiences of any systems. After all the guys that use them will give a better account than
Electronics Forum | Fri Jan 18 09:04:24 EST 2008 | jdumont
We have an Advanced Techniques AT707 system. Overall I am pretty pleased with it. Honestly we went with them because it was one of the lowest priced models when we were first getting into BGAs four years ago. They are worth a look. This year ill be l
