Electronics Forum | Tue Mar 16 09:53:27 EST 1999 | Ben Kirk
| I am looking for the dimensions of the qfp trays. I need to no the center to center as well as the edge to center. I will use this information to program the fuji QP machine for placing 44pin QFP from the tray, or other devices. I can measure this
Electronics Forum | Fri Mar 29 10:51:20 EST 2002 | lsmith
The IPC-EM-782 reads as follows: the adjustment factor is usually intended to increase the Z dimension slightly, but brings the Z maximum up to an even equivalent. Example if Zmax is 2.100mm then you would enter an adjustment factor of .100mm. The ad
Electronics Forum | Mon May 02 11:00:34 EDT 2005 | jh0n!
Unfortunately, we don't have that option under Utilities. Must be UP-2000 specific. I've set everything up correctly, multiple times...All the right dimensions, etc, taught fids, and it still tries to load the board in the wrong position. As far a
Electronics Forum | Thu Nov 03 09:50:45 EST 2005 | slthomas
"Besides I did say they would do a job." I know you did....note I was responding to a previous poster. ;) I mutter something under my breath about our Quads daily. They reject simple parts randomly for no apparent reason, refuse to align some no ma
Electronics Forum | Tue Sep 05 14:31:42 EDT 2017 | rgduval
Create a package, set the mechanical centering to the dimensions of the 8-DFN that you're trying to place, test the centering. Tweak the dimension that's failing. Shouldn't be too much of a problem. An 8-DFN package is nothing more than a rectangu
Electronics Forum | Sat Apr 27 09:47:27 EDT 2019 | SMTA-Joe
Hello SMTA, We currently use Solder Stencils for installation/rework of QFNs/BTCs, and have tremendous success with them. While they aren't overly expensive considering their high quality it does seem like a waste of money to purchase more screens
Electronics Forum | Mon Jun 19 20:37:59 EDT 2023 | stephendo
I recommend Denise Hagge d.hagge@vtekusa.com> but they have a minimum order quantity. You can at least check out their web site. One time we needed tape and reel before we had the module built. Everyone else pretty much wanted exact dimensions
Electronics Forum | Wed Dec 27 16:31:37 EST 2000 | Dason C
Charlie, please check Jedec Publication 95, you may found the information which you want. FYI, http://www.jedec.org/DOWNLOAD/pub95/ Rgds. Dason.
Electronics Forum | Fri Jun 30 12:42:53 EDT 2000 | lucky
What kind of new PD's are you having to write? Are they unique or are they just regular parts but with different dimensions? What software are you using. what machines do you currently utilize.
Electronics Forum | Wed May 17 03:03:57 EDT 2000 | Roni Haviv
Hi, Can anyone give me it's definition of PCB separation V-cut (dimensions): 1. V-cut Angle. 2. Depth of V-cut penetration into the PCB. Thanks Roni
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