Electronics Forum | Fri May 27 14:00:57 EDT 2022 | SMTA-64387182
I am looking for some sample assembly notes for a 2-sided PCBA IPC Class 2. Notes to put on my assembly drawing. Not the PCB fab drawing. Thanks, Joe
Electronics Forum | Sun Aug 08 11:15:32 EDT 1999 | Earl Moon
| | Mike, | | | | Got your message and those of others concerning PCB fab supplier evaluation and qualification check lists, etc. I have a severe problem here in WI as I can hardly access the internet, and when I do it is cut off abruptly for no goo
Electronics Forum | Wed Jul 30 16:57:23 EDT 2008 | stevek
Folks, I'm looking for some specs for the maximum bend or strain that should be put on a PWB. Not looking at the solderjoints. I'm concerned with localized bending of the fab and what might be a reasonable limit for that bending. I've measured 105
Electronics Forum | Mon Nov 15 16:23:42 EST 2010 | dpaluck123
I'm working with an aerospace PWB fab drawing from 1994. It contains a note saying "CRUSH ZN .250 DIAMETER" with an arrow pointing to a countersunk or counterbored hole. Can anyone tell me exactly what this means? Thanks
Electronics Forum | Mon Dec 02 10:45:04 EST 2019 | slthomas
*You* may be well versed, but not every designer is experienced or even familiar with DFM. I don't care how sophisticated the circuitry is, if you can't build it it's a lousy design, and as an EMS we see many designs that shouldn't have passed the
Electronics Forum | Sun Sep 22 13:14:56 EDT 2002 | scottefiske
Stop the lines...! Stop building defects and rework into your product. Contact Fab Supplier and have pipeline filled for small amount of replacement fabs to keep lines running and limiting production scheduling and impact. Request to have the board
Electronics Forum | Fri Jan 14 08:05:23 EST 2000 | Pat Pepper
Hi Dave, Thank you for the response. In answer to your responses I'll use the original numbers of my questions. 1. We would like to turn around our boards fast, but sometimes due to the market conditions we wind up with inventory. After reading
Electronics Forum | Mon Sep 26 14:09:08 EDT 2005 | slthomas
"Note: nothing changed to the process, the problem come out of sudden." Did this happen with a batch of boards you'd been running a while, or was it a new batch (lot/date code)of boards? I'd be inclined to suggest that the environment that your my
Electronics Forum | Sun Sep 12 10:08:55 EDT 1999 | Earl Moon
| hello | | having a problem with one customers bare boards not matching my stencil apertures. i design stencils based on gerber data and reduce up to 15% on some pads. do some board houses reduce pads after receiving gerber data???why would they d
Electronics Forum | Mon Sep 13 04:11:27 EDT 1999 | Earl Moon
| | hello | | | | having a problem with one customers bare boards not matching my stencil apertures. i design stencils based on gerber data and reduce up to 15% on some pads. do some board houses reduce pads after receiving gerber data???why would
