Electronics Forum | Thu Aug 19 11:23:58 EDT 1999 | Rich Cary
We are considering the purchase of a Teradyne Spectrum 8800 series tester. We have experience primarily with Genrad 228X testers, and have been well pleased, but we are giving Teradyne the opportunity to bid. Does anyone have experience with these
Electronics Forum | Wed Aug 18 11:18:22 EDT 1999 | GREG DENHAM
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. IS TH
Electronics Forum | Wed Aug 18 11:25:12 EDT 1999 | J.J. Thomas
| 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 10:28:17 EDT 1999 | Carol Zhang
Hi, I'd like to ask some tips about the merits and shortcomings o of both screen printer and stencil printer. For small quantity and highly mixed usage, which type of printer is suitable to our application? The boards contain no BGA and the fines
Electronics Forum | Tue Aug 17 09:59:50 EDT 1999 | Earl Moon
I'm trying a second time to post this very important message, to me, concerning Air-Vac's following creation. Does any own and use this stuff successfully to remove solder from 20 layer and up MLB's with .020" diameter holes? Also, is any of the adve
Electronics Forum | Thu Aug 19 19:04:55 EDT 1999 | Brian Wycoff
| | Can anyone help on the subject of de-wetting during the spray coating process. We use PC29M Parts A+B spray coating material, Humiseal tapes and masking dots, Marigold supertouch V70N gloves and Concoat CM533 liquid masking material. We also use
Electronics Forum | Mon Aug 16 11:17:04 EDT 1999 | Phil B
We have a design on which there is an ASIC that will not be produced anymore in the future. As we want to make this design over the next 10 years we are evaluating the possibility to buy the necessary ASICs for the next 10 years. This will give us a
Electronics Forum | Mon Aug 16 15:39:59 EDT 1999 | Earl Moon
| We have a design on which there is an ASIC that will not be produced anymore in the future. As we want to make this design over the next 10 years we are evaluating the possibility to buy the necessary ASICs for the next 10 years. This will give us
Electronics Forum | Mon Aug 16 05:09:30 EDT 1999 | Charles Stringer
Atlthough not strictly surface mount, I am sure that amongst the experienced players out there someone will have some answers for me. Does anyone have any experience of "phase change" heatsink materials. These are solid at room temperature and then t
Electronics Forum | Thu Aug 12 18:43:49 EDT 1999 | Wayne S.
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 deposits. Trie
