Electronics Forum | Thu Feb 04 13:00:54 EST 2016 | tombstonesmt
Any manufacturers offer an off the shelf vacuum type bare board loader that can handle boards 16"wide and 22"long? We're having issues with our de-stacker since these boards tend to come in warped.
Electronics Forum | Tue Jul 20 15:02:49 EDT 2010 | vetteboy86
I've seen this warp issue across several different PCB's we assemble. One of the biggest head ache's is getting the boards to transfer between machines, converyors, and inside our pick and place. Due to the warpage, transport between conveyors is dif
Electronics Forum | Thu Jun 25 10:32:51 EDT 1998 | Gary Simbulan
Alright gentlemen and ladies of the forum, I again seek knowlage on what is probably a well known fact. I have spent a good part of the morning with various IPC standards and weighty tomes such as the Electronic Packaging and Interconnection Handboo
Electronics Forum | Wed Jun 03 09:04:19 EDT 1998 | Steve Gregory
Hi Anthony! Earl's right, things can get rather involved when you start discussing ALL the things that affect whether or not a board is going to warp. The way I look at the issue is try to separate the warp issue into two catagories; 1. The board bei
Electronics Forum | Mon Oct 29 20:19:44 EST 2001 | davef
DON'T do it!!! The two problems you'll have are: 1 Poor manufacturing process control, resulting in weak solder connections. 2 Weak solder connections are stressed, when the board is straightened upon installation in the "box". There's several hits
Electronics Forum | Fri Apr 21 13:28:51 EDT 2006 | cyber_wolf
Chunks, I know about the board stopper in the camera. I forgot to mention that our 1 AP25 is a HI-E machine with that camera in it. The HI-E still uses the dedicated tooling. When the snuggers engage the board pops over the mechanical stop. We do
Electronics Forum | Tue May 22 02:27:50 EDT 2018 | bukas
there are numerous factors: -stencil age -stencil finish and thickness -stencil-board vertical alignment -board support -squeegee pressure -squeegee blade material and condition question here is did stencil changed its dimension over time? ar
Electronics Forum | Thu Jun 11 23:35:40 EDT 1998 | Scott McKee
| Does anybody know if a contraption exists that will minimize a PCB's tendency to become slightly bent after reflow? We have a new product that we're planning to assemble in a couple of months. The board is 9.7" by 13.4" and it is imperitive that
Electronics Forum | Tue Oct 30 10:54:37 EST 2001 | slthomas
Hey, Preacher, choir here. Unfortunately I didn't get to make the call here (hot boards, new product, same ol' same ol'), but I dam* well am looking for future (print) backup to assist in persuading the bottom line guys that it's cheaper to wait for
Electronics Forum | Fri Jul 22 16:42:50 EDT 2005 | campos
hello all, I�m experiencing problems with "warped" boards after first reflow, some of them i just can�t print side two due to this problem,,is it related only to reflow? i�m using a linear profile (225� peak / 70s time above) with a tin lead paste,t
