Electronics Forum | Mon Nov 05 14:26:24 EST 2007 | hussman
Maybe the "other" company runs a different wave, or flux, or pallet, or touches up every board. Assumptions are like brains - every claims they have one, but very few use em.
Electronics Forum | Mon Nov 05 18:31:34 EST 2007 | bandjwet
What methods are being used in industry successfully to reball smaller pitched devices (0.5mm pitch, 12 mil balls and below)? Regards BWET
Electronics Forum | Wed Nov 07 11:09:43 EST 2007 | cyber_wolf
Ya probably most used equipment guys do skip that step on the machines they sell as "production ready" As for us, our machines need to actually build boards without going down on the errors that dirty clutches create....you silly man.
Electronics Forum | Tue Nov 06 09:10:02 EST 2007 | ralphspm
What would be the best software packages available to produce assembly programs from basic gerber data?I'm using FUJI CP3 & IP1 M/C's with fujiflexa software.
Electronics Forum | Tue Nov 06 10:44:09 EST 2007 | tzawaide
Hi All, We are using BGAs from a new supplier, and the BGA solder balls are not collpasing properly. Can someone out there shed some light on what could be the root cause? Any help is greatly appreciated. Thanks!
Electronics Forum | Wed Nov 07 09:53:13 EST 2007 | dyoungquist
This is what happens when goverment legislators buy into all the enviromentalist nonsense they are feed without taking a solid look at all the facts. I am for using our enviroment wisely but this appears to be a case where they are going to do mor
Electronics Forum | Thu Nov 08 07:45:03 EST 2007 | hussman
We use the Gel Flex from MPM. Made a different base for each machine. Works well for most boards, but you may need additional pin support for larger boards. No tools, no vaccum hoses, no missprints (which Grid Lock is famous for), and best of all
Electronics Forum | Fri Nov 09 15:52:47 EST 2007 | kmakiya
We have been using Grid Loks on our MPM Accuflex machines and see an offset in the print every so often. Haven't been able to isolate the problem. How bad was the misprint and how was it related to the grid loks? Thanks
Electronics Forum | Thu Nov 08 08:56:51 EST 2007 | hussman
Sorry Matt, Just hate when people use this site as their engineering bed. I believe you can weigh your board before and after reflow. It would have to be a sensitive scale though. From there you can calculate weight to volume ratios.
Electronics Forum | Mon Jul 07 17:25:04 EDT 2008 | thughes
I'm curious to know what the pitch of the outer pads is/was on your device. Also, is this a general formula you use on all of your QFN devices or was this for one specific device?
