Electronics Forum | Fri Jun 10 14:22:53 EDT 2005 | pr
Are the local fids. necessary? Anyway, I can't think of any reason the local fids. would have to be spaced exactly the same distance from the part. We place BGA's and QFP's using board fids, and have yet to find a problem that local fids helped fix.
Electronics Forum | Mon Jun 13 15:19:11 EDT 2005 | Stefan
I guess, since nobody is using local fiducials anymore, we forgot how to program the fiducials. Was it in the component-package file or in the placement file? Nevertheless, once you find the place, where you enter the fiducial position, you'll find t
Electronics Forum | Wed Jun 15 00:33:11 EDT 2005 | Frank
You didn't state if you are using all CAD data or not. If you are not using any CAD data then all bets are off. If you global fid XY data and all your placement XY data are all from CAD data, but you are manually teaching your local fids, then they
Electronics Forum | Tue Jun 14 18:33:48 EDT 2005 | slthomas
Any tried and true methods for tracking WIP with a paper system? A good white paper on the subject or even a decent book reference that covers the topic would be great. It's really never been done here before and beyond establishing time standards a
Electronics Forum | Fri Jun 17 10:06:13 EDT 2005 | Doug
We have had some experience with the immersion tin. The appearance can be "bright" or "dull". Don't discount the fact that it is "bright" doesn't necessarily make it HASL. Furthermore, I personally have never heard of a board manufacturer "stripping
Electronics Forum | Wed Jun 29 17:38:16 EDT 2005 | GS
Several years ago, we had almost same pbm, best results have been obtained by using water soluble paste (those time the old AM1208). Any way, to get a good toe meniscus is not so easy. Talking about CTE, keep in consideration the internal die of TSO
Electronics Forum | Fri Sep 16 06:34:07 EDT 2005 | ajay
We have link fail issue now & could not able to establish. Overall situstion is that oven can not work. we checked all relay 24vac, 24vdc, 110v, 120v, 240v. all looks ok. only issue we ovserve that from B250SSR pin no 3&4 we are unable to get 5VDC. T
Electronics Forum | Thu Jul 28 09:23:48 EDT 2005 | fctassembly
300 million boards to date). I also have some reliability data for joints made with these 2 alloys wave soldered and then repaired with both. All of these results look good. The issue we see is mixing SN63 with any of the lead free alloys. Sn63 wave
Electronics Forum | Wed Aug 10 21:47:17 EDT 2005 | Geoff
Nihon superior could not provide any written aprovals but In asia.......... Sony- SN100C in use for car and home audio applications. Panasonic- SN100C in use for DVD, VCR, battery, and home appliances applications. Pioneer- SN100C in use for everythi
Electronics Forum | Wed Jun 29 17:56:47 EDT 2005 | Ryan
We have a new Heller 1809 EXL reflow oven and when we run MELF�s or Aluminum Electrolytic Capacitors through the oven they are being blown off the pads. I have verified that the placement is good before reflow. I verified that they are pushed down
