Electronics Forum | Thu Mar 23 20:31:45 EST 2000 | davef
Hey Cartman: Recently, I was over at a plant that does ICT on RMA fluxed boards and asked them about flux residue on test probes. The test machine operators: * Think flux residues are a pain in the gluteus maximus. * Change probes (from a collectio
Electronics Forum | Fri Mar 17 07:51:49 EST 2000 | Peter Barton
John, I have had previous experience of immersion silver coated PCB's in place of HASL coated type using no-clean processing with little or no problem at all. All of the process parameters were left unchanged. There is a very minor difference in th
Electronics Forum | Thu Feb 24 12:48:45 EST 2000 | Larry Johnson
I have seen this problem several times on several different IP3's... When the MTU is about to pick a part from the tray, the machine will just stop. No error, just says, "producting", in green. E-stop, reset and start again, and you hear air from
Electronics Forum | Tue Feb 22 07:59:54 EST 2000 | Hany A. Salam
Hello friends: In a few weeks we will have to assemble PC motherboards. We decided to use to purchase an ICT for testing the semi assembled boards (I mean with only SMD components on). Would anyone kindly like to recommend a SPECIFIC brand or model
Electronics Forum | Wed Feb 23 11:12:47 EST 2000 | TMV
This note is in response to your question about not being able to recognize a component that is running on a 4796 but has problems on a 4791. The 4791 and 4796 used two different recognition systems and the lighting calibration will be not be the s
Electronics Forum | Tue Feb 13 07:26:26 EST 2001 | doctord
Bill, I can give you suggestions. First and foremost. Print a board and look under a microscope. Are you printing exactly on the pads? If you print on the mask, no matter how good we got the profile, no matter what paste we would get solder balls. Mo
Electronics Forum | Mon Feb 26 14:06:09 EST 2001 | marting
We have just started to be involved with collumn grid array devices and are currently placing them by Universal GSM machinery. We have been advised by Universal that they supply "On Axis" cameras designed for visioning CGA devices, however the cost i
Electronics Forum | Mon Feb 26 16:26:00 EST 2001 | jax
I have not placed these parts in a while but when I did Universal was the machine that did it. We were able to place these parts using a 1mil flat( upward looking camera) inspecting all columns. The problem is a 100% column recognition is not possibl
Electronics Forum | Tue Mar 13 13:15:59 EST 2001 | kerryn
Dear Dave and Mike, I do not normally respond to threads of the forum. However, I do enjoy reading other's comments. There is a lot of valuable information provided by both suppliers and users. You seem to be making light of Bill Schreiber's com
Electronics Forum | Thu Mar 08 12:40:54 EST 2001 | Ralph Merk
We are currently using 0402 resistors and capacitors in our production process. Our equipment is as follows: - DEK 265 - Siemens S25/F5 - Vitronics XPM520(5 zones) - 2% silver solder Alpha WS678 The problem is that randomly some 0402 capacitors are
