Electronics Forum | Fri Feb 13 03:53:40 EST 1998 | Brian S. Bentzen
Hi , I have not been able to find any good description on how to perform double sided reflow on PCBs.The best would of course be to avoid reflowing the bottom side again but in real life this is not possible. So when double sided reflow soldering
Electronics Forum | Fri Apr 03 03:41:04 EST 1998 | Frank J. de Klein
150 secs. On bilayer boards (Cu only at top and bottom) you can typically not reach differences top to bottom bigger then 35-40 C. For multilayers however, the maximum is 15-20 C. If you actively cool a multi- layer at the bottom during the 2nd pass,
Electronics Forum | Thu Feb 12 20:36:26 EST 1998 | Jon Medernach
| Using metal squeegees on GSPs has caused premature stencil wear. Has | anyone had any success with this combination? How much snap off did you | use? We are using .5 mm pitch and have a no clean process. Stencil wear is is minimal but exists. T
Electronics Forum | Tue Feb 24 12:37:43 EST 1998 | Robert
| We are facing some placement problems with | our QUAD 4-C. | Program was running fine last week, Next week | program will be off (placement, pickup,vision files | etc, | Any help, any idea,??? | Thanks Sorry your having trouble, I also have a IVc t
Electronics Forum | Sat Feb 28 01:14:29 EST 1998 | Ray
| | We are facing some placement problems with | | our QUAD 4-C. | | Program was running fine last week, Next week | | program will be off (placement, pickup,vision files | | etc, | | Any help, any idea,??? | | Thanks Glass scales ARE the problem. Th
Electronics Forum | Fri Feb 13 09:34:43 EST 1998 | Johanna Medero-McGoff
Good morning, We presently have a TP18 and have also experienced the core-dumped fatal error. Everytime that it has happened is when the machine is automatically searching for the reference points, before it starts assembling. Mydata suggested to
Electronics Forum | Thu Feb 19 14:19:15 EST 1998 | Rin Or
| Good morning, | We presently have a TP18 and have also experienced | the core-dumped fatal error. | Everytime that it has happened is when the machine | is automatically searching for the reference | points, before it starts assembling. | Mydat
Electronics Forum | Sat Jan 24 15:52:53 EST 1998 | Bill McKnight
| Has anyone experianced Core Dump errors with their MYDATA TP9? | My machine (2/96) has 26 million placements and my operators | have recorded 253 core dumps in 1996, 238 in 1997, and 18 in | January of 1998. We run one job on the machine, period.
Electronics Forum | Fri Feb 20 14:33:47 EST 1998 | Dave McFadyen
Looks like (so far) we have a concensus. Follow the paste manufacturers guidelines on storage. Normally, refrigeration is required to achieve max shelf life between 3 and 6 months in original closed container. Water-wash pastes are much more active t
Electronics Forum | Wed Jan 28 19:56:29 EST 1998 | Steve Gregory
Raymond, Have you ever heard of Band-Etch, or another term called Band-width Etch? It's a trademarked process of stencil etching from a company named BeamOn Technology, they're out here in "Silly-con" valley (408) 982-0161. They way they etch their
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