Electronics Forum | Mon May 12 09:36:05 EDT 2008 | radab
Hi, I have some BGA devices, a plastic FBGA memory chip (to be replaced) and an exposed-die FBGA processor here which need reworking. I picked up an Aoyue hot air rework station (http://www.aoyue.com/en/ArticleShow.asp?ArticleID=383) along with the
Electronics Forum | Tue May 13 12:15:47 EDT 2008 | locostpp
Harry, thanks for your comments. Certainly circuit diagrams where appropriate and mechanical schematics of complex parts like the head would be useful to the end user. We are working hard to eliminate relays and switches from the unit, and things
Electronics Forum | Wed May 14 15:15:03 EDT 2008 | boardhouse
Hi Scott, I have worked for a State side PCB Manufacture and now a Taiwan Manufacture. At both shops the up charge was based on how many up the pallet array was plus layer count and complexity of product, charges ranged from free to 15%. Standa
Electronics Forum | Wed Jun 04 00:28:27 EDT 2008 | chrispy1963
There are a couple of things that you can do. First thing to do is take a flashlight and shine it in the card edge connector of slot 2 and see if a passive component or any other part worked its way into that slot. This will cause multiple leads in
Electronics Forum | Tue Jul 22 09:35:06 EDT 2008 | dfhoadle
I hope that we have not lost much quality, but am still bothered by the way our select x is working. It seems to do very well when I can get the nozzle head within 5/1000 of an inch to the board as it passes. However, when I increase that distance
Electronics Forum | Fri Jun 20 01:12:50 EDT 2008 | chrispy1963
Look into a used Siemens F-4 or F-5. These machines can be had for a reasonable cost, they are easy to maintain, the footprint is small (7' X 7.5') and they are simple to program. These machines have a 12 nozzle "Star" revolving placement head for
Electronics Forum | Sat Jun 21 23:15:07 EDT 2008 | mika
Also keep in mind that the CCGA column length tolerance is at minimum +/- 0.13mm from most part manufactures and they don't collapse in the same way as a BGA, therefore the paste height deposit could be critical in some rare circumstances. Board warp
Electronics Forum | Thu Jul 10 10:46:26 EDT 2008 | patrickbruneel
Real Chunks, I intercepted the email below from the RoHS USA pushback mailing list. This email comes from an engineer employed by the largest OEM in Belgium. Looks like you made a great point that �work� can take on several meanings!!! ************
Electronics Forum | Fri Jun 20 18:32:55 EDT 2008 | hegemon
Back when I used to do a lot of these style devices we ran into the same problem you are describing. Use a pattern for the center pad area and keep the total coverage to about 68% of the pad area. Diagonal Stripes, tic tac toe, cloverleaf, dot array
Electronics Forum | Thu Jul 03 08:50:15 EDT 2008 | rgduval
We include it as a part of overhead in our costing. However, I'm working to change that....we're a fairly small job-shop, and we run some jobs where we find that final inspection takes as long as the job took to build in the first place. In these i