Electronics Forum | Mon Aug 23 14:13:23 EDT 1999 | C.K.
SMTnetters: Does anyone know of a place where I can have some test boards made? I don't need a board with a working circuit, traces or anything like that, but a board similar to those "test boards" that you all see at the Placement Equipment manufa
Electronics Forum | Wed Aug 18 21:18:00 EDT 1999 | Dave F
| WE ARE CURRENTLY HAVING PROBLEMS REFLOWING BOARDS WITH WHITE TIN PLATING. WE ARE NOT GETTING GOOD WETTING ON THE PADS. | WE HAVE CHECKED THE REFLOW PROFILE AND TRIED DIFFERENT PASTE'S. | WE THINK THERE MAY BE CONTAMINATION OR OXIDATION ON THE PADS.
Electronics Forum | Wed Aug 18 21:25:37 EDT 1999 | Tony Yang
| WE ARE CURRENTLY HAVING PROBLEMS REFLOWING BOARDS WITH WHITE TIN PLATING. WE ARE NOT GETTING GOOD WETTING ON THE PADS. | WE HAVE CHECKED THE REFLOW PROFILE AND TRIED DIFFERENT PASTE'S. | WE THINK THERE MAY BE CONTAMINATION OR OXIDATION ON THE PADS.
Electronics Forum | Fri Aug 13 12:52:17 EDT 1999 | Steve Schrader
| Hello | | Having a problem with bridging on 20mil pitch qfp, only on the lead groups where squeegee goes over width of apertures. Using MPM sp-200 semi-auto, chem-etch stencil, 9-10mil width opening | 100 durometer blade. Getting "tails" on deposi
Electronics Forum | Tue Aug 17 10:41:13 EDT 1999 | Steve A
Wayne, Sounds like a gasketing problem. When the horizontal apertures are bleeding but not the vertical apertures. Could be poor underside support, HASL miniscus issues, masking or plugging issues, but what many people do not account for is that t
Electronics Forum | Wed Aug 18 15:52:21 EDT 1999 | DENNIS FOWLER
| | | Gian | | | | | | You alarm me when you talk of white residues in a "no-clean" process. This should not happen. It sounds like you have compatibility problems between different residues and/or a poorly polymerised solder mask. | | | | | | Ther
Electronics Forum | Fri Aug 06 10:06:34 EDT 1999 | Peter Brant
| | | I need to find quality benchtop develop, strip, & etch equipment. | | | Any ideas? | | try LPKF in Beaverton, Or. 503/634-0604 or the link below. I haven't used their eq so this is not an endorsement | | John Thorup | | let's try that link a
Electronics Forum | Fri Jul 30 19:19:21 EDT 1999 | M Cox
| So is anyone going to attend Nepcon Texas in Dallas, or is it a waste of time? | | So far I don't see some of the big players, and I would assume they would have their trade show dollars mapped way in advance. | | Being in San Antonio (should I
Electronics Forum | Fri Jul 30 17:32:15 EDT 1999 | Dave F
| Very shortly I will be evaluating OA flux and aqueous cleaning to replace our RMA and solvent cleaning process. I am primarily interested in batch aqueous cleaners for reasons of budget, floor space, etc. I am concerned about the ability of H2O t
Electronics Forum | Mon Jul 19 05:40:57 EDT 1999 | HERMAN
| | My wavesoldering machine is equipped with Titanium finger. What composition of Titanium alloy used ? Any grade difference, and which is the best grade for long life ? An info or website concerning it. | | Dear Barden, | | Sorry, I am not fami
