Electronics Forum | Fri May 22 13:20:33 EDT 1998 | Earl Moon
| | | Does anyone know about low pressure/low temperature | | | ovens used for baking of moisture senstive | | | components? | | | Thanks | | I need to know from where your need came. I usually just bake in conventional ovens with specified times a
Electronics Forum | Tue May 26 12:29:57 EDT 1998 | Steve Gregory
:Steve, If you want to get a constant flow of higher quality water to supply to your cleaner, you could install a fliter, carbon filter, softener, and an Reverse Osmosis unit that dumps to a storage tank and draw from that. This will give you a const
Electronics Forum | Thu May 21 22:25:39 EDT 1998 | Mike Konrad
Your experience is typical. The degradation curve of resins resembles the track of a Six-Flags roller coaster. Water quality remains high (10 MW+) for 80% of the resin's life. For a very short time, quality will drop to 7 - 8 MW, then, without noti
Electronics Forum | Tue Jun 02 13:44:04 EDT 1998 | Rin Or
| | | | | Does anyone use the "Quick Frame" with their Dek printer? | | | The threads on the screws keep stripping, so we thought | | | maybe we'd send our frames to a machine shop for heftier | | | screws. Has anyone done this? Is there a better wa
Electronics Forum | Mon May 18 21:29:38 EDT 1998 | D.Lange
| I've tried every thing I can think of. Do you have any | Ideas? | What I have is micro balls on the gold fingers of | panelize boards. These balls only appear on the gold | finger. Or at least I can only find them on the gold | fingers. | What I
Electronics Forum | Tue May 26 15:27:36 EDT 1998 | Dave F
| | | I'm reviewing my board fab spec. It calls for a minimum SnPb thickness of 50 microinches on HASL PWB's. I've looked at other specs that call out anything from 30 to 80 microinches, and others that just say the copper pad must be covered and s
Electronics Forum | Tue May 19 16:32:54 EDT 1998 | Chrys
| | Earl, | | I admit that I missed your article since I seemed to have let my subscription to Circuit Fabrication Magazine expire. I am interested in your experience in this area. Is there a way to get a copy of your paper? Could you maybe post i
Electronics Forum | Mon May 18 13:30:15 EDT 1998 | Earl Moon
| I'm reviewing my board fab spec. It calls for a minimum SnPb thickness of 50 microinches on HASL PWB's. I've looked at other specs that call out anything from 30 to 80 microinches, and others that just say the copper pad must be covered and solde
Electronics Forum | Sat May 16 19:31:27 EDT 1998 | Graham Naisbitt
Gentlemen, Please consider that ionic testing is designed only for detecting ionic contaminants. Yes there are instances of non-ionic contaminants that cause premature circuit failure. However, more importantly the prevailing specs are less than adeq
Electronics Forum | Fri May 15 10:51:12 EDT 1998 | Justin Medernach
| We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | We have no c
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