Electronics Forum | Tue May 28 22:06:09 EDT 2002 | arcandspark
Two hours at 125 C will do nothing. IPC's new spec is 48 hours at 125C, the old spec I use to use for years was 24 hours at 125C. I do not have all the spec in front of me but if you reduce the temp to around 60C it can take up to 48 days. We use to
Electronics Forum | Tue May 28 22:06:18 EDT 2002 | arcandspark
Two hours at 125 C will do nothing. IPC's new spec is 48 hours at 125C, the old spec I use to use for years was 24 hours at 125C. I do not have all the spec in front of me but if you reduce the temp to around 60C it can take up to 48 days. We use to
Electronics Forum | Tue Apr 12 06:12:13 EDT 2005 | rlackey
Print it, place it,(Don't reflow it) check it, remove valuable parts & wash it. You could use double sided sticky tape but it leaves crap all over the board when you remove it. Rob.
Electronics Forum | Tue Apr 12 12:08:06 EDT 2005 | Dave G
I use the solder sample pcb that comes w/ each batch of boards. We ask our pcb vendor to send 1 pcb for solder testing w/ each batch. This is usually a pcb that is completely done it just didn't pass electrical test @ the final stage. I kill two bird
Electronics Forum | Wed Jan 31 12:59:53 EST 2018 | fluxgate
Hi Rob, I did check with the board house, and the confirmed that there was no Nickel plating, but that the silver went straight onto the copper in their immersion silver process. Interestingly I've even tested an unplated sample from that board hou
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
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 | Thu Feb 01 03:02:50 EST 2018 | robl
Hi Rob, > > I did check with the board house, and > the confirmed that there was no Nickel plating, > but that the silver went straight onto the copper > in their immersion silver > process. > > Interestingly I've even tested an > unplated sam
Electronics Forum | Tue Apr 12 04:35:30 EDT 2005 | dusty
How can I do paste printing and placement set-up without having to waste a panel?
Electronics Forum | Tue Apr 12 22:23:05 EDT 2005 | Al
The way we do this, is to tape a transparent film to the PCB. The printers and chip shooters can read fiducials no problems. Once it has been run through SMT, simply remove the tranparency film and the PCB is ready for use, no mess no cleaning and yo
.gif)