Electronics Forum | Fri Dec 20 11:32:51 EST 2002 | D. Adams
Check your stencil apertures making sure they are trapazoidal and smooth. I have hadjobs where the laser stencil was improperly cut (poor laser settings leaving a rough hole even after electropolish. Be sure to specify a .0005 trapazoid in your ste
Electronics Forum | Thu Dec 19 12:08:01 EST 2002 | davef
Facts!!! I got facts. Mechanical strength experiments of Sn43/Pb43/Bi14: �Microstructural And Mechanical Characterization Of 43/43/14 Tin/Lead/Bismuth�; J. Marshall, J. Calderon, J. Sees; Soldering And Surface Mount Technology; 10/91, p25-27 Look
Electronics Forum | Wed Jan 01 21:31:50 EST 2003 | swalter
Hi , Since , only most of your operation is done manually , I believe there are a number of operations that are done through automation , do you actually see the benefits of automation? There are many considerations points of going into automation
Electronics Forum | Tue Jan 14 13:18:15 EST 2003 | russ
We utilize our distributor(s) Contact East, Hisco, Future, Arrow, etc.. for our needs. There are a multitude of manufacturers for this tape (3M, Dewal Ind.,etc...) so, you need to find out waht you like and dislike for this magic tape. Some manfs. ha
Electronics Forum | Fri Jan 24 22:22:26 EST 2003 | MA/NY DDave
Hi Entering just to keep this tread alive, and see more comments. Yes I have seen a serious decay over many years. In addition to the supplier side getting worse, incoming inspection, receiving seems to be getting worse. In addition to the decay
Electronics Forum | Mon Jan 20 19:07:41 EST 2003 | slthomas
Sorry, what I meant was that they don't provide a duration for that liquidus + 20�C value that I've seen bantered about here and on TechNet. They only provide the same stock time above liquidus of 30-90 that they've always used. I'd like to see refe
Electronics Forum | Wed Jan 22 13:31:23 EST 2003 | jonfox
Elongated slots!! Our older runs are a pain sometimes with parts (1206, 0805 chips) twisting as they go through cure. I'm sure that its not all due to the dots, but I'm sure that it doesn't help either. We don't see this effect on our runs that us
Electronics Forum | Thu Jan 23 15:56:51 EST 2003 | MA/NY DDave
Hi Well I can't argue too much with MikeKonrad, whom I might know, yet maybe don't. The only other reason that you can be a little sloppy is if your product application or life cycle won't allow the corrosive cycle during usage to become a problem.
Electronics Forum | Fri Jan 31 13:55:56 EST 2003 | MA/NY DDave
Hi I hope I am on point based on my reading. The outer edges bow spec depends on a gradual deformation that finally builds up to the outer edges. If you mathematically move this deformation back you will have allowable deformation at the point you
Electronics Forum | Wed Feb 05 11:31:40 EST 2003 | lloyd
The grease to use is DAPHNE EPONEX M No. 1 as you would expect it is made by an oriental company (IDEMITSU KOSAN). Sanyo recommend that this procedure should only be carried out by trained personnel, so it may be worth giving them a ring before you s
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