Electronics Forum | Fri Mar 24 17:40:51 EST 2000 | John Thorup
Hello Chris As John says, a Dremel works well but be careful not to let it grab and get away from you or to let it cut too deep on a multi layer board. If you are using one of the traditional long and pointy Exacto blades I can understand the frust
Electronics Forum | Thu Mar 30 04:42:28 EST 2000 | cpgoh
HI all, thanks for the advise.. Electrovert is being used from 7am to 7pm and we do dedross from the surface of the solder bath during lunch time around 12nn. Break Time we just sweep them to the side.. Every two week, we do the solder bath maintena
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 | Wed Feb 23 11:02:41 EST 2000 | John
John, I'll try to take a crack at it. We manufacture our own boards, and have a high mix. We currently have BOTH a Camalot 2800 Dispenser and a DEK 260 Screen printer. We use the camalot for glue applications, and prototype paste. We use the printe
Electronics Forum | Thu Feb 22 05:33:51 EST 2001 | mattias
Hello all I just wanted to spread the word regarding the use of sugar to remove burnt-in flux. Dissolve sugar into warm water and spray it on the area that You want to clean,let it work for a short while and rub. If you want to do it the manual wa
Electronics Forum | Tue Feb 27 11:28:08 EST 2001 | fkurisu
Hello Mark, It is possible that SolderMask, Inc. could selectively remove the existing solder mask, clean and reapply a Photoimageable solder mask to the BGA area. Mostly likely the mask on your boards is a Liquid Photoimageable Solder Mask (LPIS
Electronics Forum | Fri Mar 02 09:08:10 EST 2001 | markkrmp
Frank, I am not talking about the masking on the PCB. I am actually talking about the masking on the solder side of the BGA. We have a very very high dollar BGA and are trying to reclaim alot for reuse. When we remove the BGA from the assembly, you
Electronics Forum | Tue Feb 27 07:51:59 EST 2001 | jackofalltrades
We use Selective Wave Pallets for the vast majority of our boards with great success. Many of our boards have BGA's and connectors on both sides, which for the most part then require the Selective Wave Pallet. We successfully use pallets up to 10mm t
Electronics Forum | Tue Mar 13 14:17:00 EST 2001 | blair
Thanks a lot for the response 1) there are 8 BGA on this board 6 PBGA, 1 TBGA and 1 ESBGA (metal lid). They are dispersed over the board (approx 11"* 14") 2) Is there a tool to use to understand pitch/bump size and stencil aperture (optimized)? 3) Y
