Electronics Forum | Fri Apr 30 09:20:09 EDT 1999 | Chrys Shea
| Ok folk's has anyone used Alpha Metal's UP78 solder paste ? | | Our place is looking to move to that as the way to go, getting rid of the Hereaus 362's and Alpha 737's of the current set up. | | My question's are really : | how is the printabilit
Electronics Forum | Fri Apr 30 11:03:27 EDT 1999 | Wade Oberle
| | Ok folk's has anyone used Alpha Metal's UP78 solder paste ? | | | | Our place is looking to move to that as the way to go, getting rid of the Hereaus 362's and Alpha 737's of the current set up. | | | | My question's are really : | | how is the
Electronics Forum | Thu Jul 15 18:07:04 EDT 2004 | dwanzek
This has been a tough one to date. Any ideas will help. Problem definition � random QFP144 part not soldering all leads. Percentage fallout is about 1-5% of boards. Usually leads, one or more, on trailing side to the direction of travel does not wet
Electronics Forum | Thu Feb 15 19:44:50 EST 2001 | davef
I assume Roland [er someone like that] explained on the Main Conference also known as the Forum, the blue "New Thread" button near the middle of the page and 1 1/2" in from the right margin as the preferred way for posting a new thread. [Well, if th
Electronics Forum | Wed Jun 27 21:24:47 EDT 2001 | davef
Welcome. First, proper alignment can produce an order-of-magnitude increase in the number of boards that can be printed without wiping. The initial alignment can be made either by: * Peering through the stencil apertures at the board underneath and
Electronics Forum | Thu Apr 22 14:31:39 EDT 1999 | Dave F
Michael: Two things: 1. Profile: A. Your FR4 profile will not produce good solder connections on your ceramic substrate. Hey wait a minute, you soldered FR4 at 250C?? Ceramic is a themal sponge. You'll need to play, but it should be easy compare
Electronics Forum | Mon Dec 14 10:53:10 EST 1998 | Earl Moon
| Has anyone had any experience with using this alternative plating process? Some board houses are pushing toward this plating. Is there any long term data on this process? Any problems experienced with smt and thru-hole? I've heard tin whiskers to b
Electronics Forum | Wed Jan 21 03:44:04 EST 1998 | Igmar
| We are currently investigating alternatives to HASL for circuit boards with 20 mil pitch smt pads and below. If you have experience with this product or simular immersion tin products with respect to manufacturing or assembly I am very interested
Electronics Forum | Wed Sep 19 14:58:03 EDT 2001 | jschake
You provided excellent detail, and unfortunately I do not see anything out of the ordinary except the tooling issue. This brings us back to the original tooling related questions you had asked before. My apologies for questioning your process integ
Electronics Forum | Mon Sep 01 04:55:20 EDT 2008 | benefon
Hello all Our Omni 5 has given the 'Cooling module high temp' warning twice during the past month. I suspect that the blower motor is the culprit but have not been able to verify this because the oven has started up normally after acknowledging the
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