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 | Wed Aug 04 08:08:10 EDT 1999 | Paul O.
| | We're getting field failures in a high impedance portion of the circuit. Think the unpopulated pc card has contaminates because we were able to grow dendrites by applying a 9 volt battery across the suspected pad, placed a drop of de-ionized wat
Electronics Forum | Mon Aug 02 18:46:33 EDT 1999 | Jim Blankenhorn
| | Has anyone done the research on BGA pad size? suppose I have a 0.030" diameter pad as recommended pad size from the spec, what will the minimum pad size allowed? We are laying out a high density board. | | If you know what component your'e going
Electronics Forum | Fri Jul 30 14:53:01 EDT 1999 | Tom B.
Hello Netters, I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinned on exposed
Electronics Forum | Fri Jul 30 17:16:59 EDT 1999 | Dave F
| Hello Netters, | | I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinned on e
Electronics Forum | Fri Jul 30 17:24:24 EDT 1999 | Dave F
| | Hello Netters, | | | | I have a customer who wants us to aquaeos wash a PCB after all operations have been performed. The PWB is two layer FR4 with a Transformer, a Multichip Module with Conformal Coating, (6) 11" insulated wires that are tinne
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 | Fri Jul 30 11:16:55 EDT 1999 | DLKearns
| I have been asked to supply a maximum shelf life for our assemblied PCB's. I realise this is dependent on so many factors- temperature, humidity, no of layers etc. But does anyone have a formulae for calculating shelf life, or does anyone know of a
Electronics Forum | Thu Jul 29 23:21:51 EDT 1999 | CH Lee
I received a request from customer to assemble ceramic substrate (alumina oxide)that printed with a low temperature Copper thick film conductor (the overglaze layer is polymer). The Copper pads are exposed without any coating. This ceramic substrate
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