Electronics Forum | Mon Dec 16 21:40:27 EST 2002 | grantp
Hi, Thanks for the info, and I will check it out. Do you know where the IPC 7525 spec is? Does it explain why square is better? I know there is some theory I am missing here, and that's why we have problems. I am just freaking out trying to establi
Electronics Forum | Tue Dec 17 08:46:59 EST 2002 | Randy Villeneuve
Personaly I would try a different solder paste. Give Indium a call and get a sample of their SMQ92J No clean. You will be impressed. Alpha and Kester also have good products but we have a long history with this paste and we have printed millions of b
Electronics Forum | Wed Dec 18 01:37:39 EST 2002 | Steve
I dont know what kind of screener you use but my 1st impression is that the board and stencil are separating too fast,the paste doesn't have enough surface tension to stay on the board, you're tearing the paste off the board. If you can, slow down th
Electronics Forum | Wed Dec 25 06:15:41 EST 2002 | hany_khoga
Hi There: We have a wavesolder m/c with foam fluxer. I want to know: - When we do not run the machine, how to keep the fluxer porous cylinder in a good condition? knowing that we use no-clean flux. Is it the same when we stop for a few days or wee
Electronics Forum | Mon Jan 06 11:05:54 EST 2003 | Randy Villeneuve
I am not sure what parts you are inserting, i.e. radial, axial. The first thing I would do is to make sure the design can be automated. There are design guidelines from Universal and others that are good in determining if the parts can be placed and
Electronics Forum | Mon Jan 06 17:42:36 EST 2003 | gregp
That is true. But maybe for discreets in paper tape where the bulk of your partially used reels is it may be helpful. The rest you can guestimate. Not very good of course. As a placement machine manufacturer I agree every machine should have real
Electronics Forum | Thu Jan 09 21:28:01 EST 2003 | caldon
SMDTEch- Essemtec is a great value for the $. I was the Applications/ Product manager for Manncorp and think these are good little machines. For an unbiased opinion please contact Jeff Stong at ACI 610-362-1200 x224. The had one up until middle of
Electronics Forum | Thu Jan 09 18:19:51 EST 2003 | babe
The Ersa system is fine however there are thermocoupling problems and the service from Ersa has been very poor of late. The Metcal won't handle larger boards and the heating is inconsistent.Especially with BGA components. We see this via inspection
Electronics Forum | Fri Jan 17 16:36:04 EST 2003 | MA/NY DDave
Hi As DaveF notes there are many sources. In one of my lives, I used to generate this business for one of the really good outfits i.e NTCu in Bethlehem, PA and I know of several more. You probably already get NTCu's mailing if you have been in the
Electronics Forum | Mon Jan 27 13:15:33 EST 2003 | dphilbrick
Thanks for the revival of the thread! I have to assume there are quite a few factors creating this reduction of quality. I am not hearing about quality suffering in the assembly side of the industry here in the good ol' US but in the board fab side w
