Electronics Forum | Tue Apr 03 03:31:51 EDT 2007 | chrissieneale
Apparently because the machines are old and prone to break down they do all the printing for the day (maybe 6/7 different board types) up front. This doesn't make any sense to me - if the machine is going to break down, the machine is going to brea
Electronics Forum | Fri Oct 12 13:10:27 EDT 2007 | jseagle
We always do block conversion and have never had a problem. Is there a problem with the accuracy of your PCBs from the vendor? If you can get a panel placed correctly the next panels should also place correctly. I just created a 2x8 panel with hal
Electronics Forum | Wed Jul 04 12:18:14 EDT 2012 | davef
Phil is correct in his description of proper rework technique. Possible explanations of the reason for popping of your BGA are: * Thermal cycling of components cause them to flex on a different point in the cycle that the board possibly resulting in
Electronics Forum | Thu Oct 11 16:55:26 EDT 2007 | slthomas
Yeah, James, we've got block repeats set up so we're getting the boards built with just pcb fids, and very accurately. I want to be able to build with block fids, though, in case we have any issues with the panelization. It's happened in the past a
Electronics Forum | Thu Oct 11 17:54:21 EDT 2007 | slthomas
Yep, we did it just the way you described, I think. What we did NOT do was a block conversion. We just built it a board at a time, to see if things were accurate when we first programmed it. They weren't, so we did away with the block fids, adjusted
Electronics Forum | Mon Apr 02 12:04:23 EDT 2007 | realchunks
Are you running different baords/product at the same time? Why are they buffering boards after screen print?
Electronics Forum | Tue Jul 03 02:42:37 EDT 2012 | kq702
Hi I did a reflow on an HP laptop a while back- it was a DV6000 series. The original problem was the internet stopped working- turns out the south bridge chipset was causing the issue (its a very common issue I found out after searching online). Some
Electronics Forum | Mon Apr 02 09:42:51 EDT 2007 | chrissieneale
Quick question for anyone - With this whole pasting and waiting thing - i've found out that the board is pasted, it sits around for a bit, then the components get placed on it. Then i thought it went into the oven BUT, it doesn't. It sits for a few
Electronics Forum | Mon Apr 02 09:57:19 EDT 2007 | ed_faranda
Yes, Hand Up here. I would think you would have a quality problem. I am assuming you're doing this process in some sort of batch mode. I would hope that you can process your boards within a few minutes after components being placed. Things that I
Electronics Forum | Mon Apr 02 10:20:40 EDT 2007 | realchunks
Hi Chris, Yes, my hand is up. But the problem is WHY you are stock piling printed boards. Is it a single printer used to feed various lines? I would think that since you are hand placing parts, that this printer would be able to keep up. Obvious
