Electronics Forum | Sun Oct 05 15:54:51 EDT 2008 | hasu
Hi All! I remember reading and seeing some (maybe Loctite) product which could be used to fill stencil apertures, but now when I need one, I cannot find it. Or anything like. Can some one please guide me? And with filling I mean permanent filling, n
Electronics Forum | Thu Oct 23 21:15:15 EDT 2008 | ikonify
Has anyone been using the following documents for DPMO and any feedback on them? IPC-7912 - Calculation of DPMO & Manufacturing Indices for Printed Board Assemblies IPC-9261 (In-Process DPMO Estimated Yield for PWA) Also is there any databases rea
Electronics Forum | Thu Oct 30 09:15:20 EDT 2008 | kingshar
Hi, Hi, 1) Can anyone tell be what is the acceptable manufacturing tolerance from stencil to PCB . 2) what are the methods we can avoid that. 3) What is the method to avoid PCB shrinkage. 4) How can we correct shrinkage 5)Is there any standard gud
Electronics Forum | Wed Nov 05 11:57:43 EST 2008 | gidster
Help please, Has any body got any ideas what could be causing the Optical loop errors, I have checked the operation manual and all it tells me is to switch off once. Any help would be appreciated as it's started to drive me up the wall thanks in adva
Electronics Forum | Sat Dec 06 09:38:39 EST 2008 | eksoftware2
We are going to convert a Leaded Wave machine (EMS Stallion) to Lead Free. Can we just empty the pot of leaded solder, run it with pure tin for a bit and then put in SN100 bar? What's the score with SN100? Oh and does anyone have any paperwork for
Electronics Forum | Tue Dec 30 08:55:29 EST 2008 | umamaheswaruk
Hi all, I have couple of questions/doubts on solder mask, please clarify. Why green color solder mask is popular when compared to other solder mask (RED, PURPLE, BLUE etc.). Are there any performance issues with other solder mask if I use them.
Electronics Forum | Tue Jan 20 10:30:56 EST 2009 | milas
Hi We have just specified the following thicknesses for the Nickel and Gold on an ENIG finish board. The baord is to be manufactured using a lead - free process. My question: Is the thickness we've specificed likely to gie us any issues during manuf
Electronics Forum | Thu Jan 22 04:21:56 EST 2009 | aj
Hi all, We are currently evaluating the above mentioned Xray system. I would appreciate some feedback from users on good & bad points and maybe things to look out for. At this moment and time it is mainly 2series systems due to obvious reasons, bu
Electronics Forum | Mon Feb 02 16:31:09 EST 2009 | shanebeard
I turned on my standard Philips Topaz today, and the vision system did not come up with the rest of the machine. If there is anyone out there that could walk me through troubleshooting this problem, it would be greatly appreciated. I'm thinking the
Electronics Forum | Wed Feb 04 08:00:30 EST 2009 | milroy
Hi, It depends on the stencil thickness, aperture size and the component footprint. For exampl if you have a PCB with QFP,CSP,QFN & BGA parts then this underwiper is not useable because you will still find solder cream deposits in the apertures aft
