Electronics Forum | Thu Mar 03 11:23:50 EST 2005 | Slow Ride
Generally QC is a different deptpartment than touch-up people. Most touch-up people are just general operators, so to keep their job they always see the solder joint as "not enough". Q.C. people are generally a bit better, but know they may be call
Electronics Forum | Sat Mar 05 22:57:32 EST 2005 | gpaelmo
This has been our practice and its worked well: SMT process-QC/Touch-Up-Assembly. We have dedicated QC/T-Up after reflow trained under IPC requirements. They do the SMT inspection and ONLY touch-up if necessary. This way we never have to inspect SMT
Electronics Forum | Wed Jan 16 09:24:11 EST 2008 | rgduval
In general, they certainly can be touched-up. I don't know of a CM yet that doesn't use a touch up step of some description. However, you'll want to be looking at the process to try and determine what is causing the pin holes and blow holes, and tr
Electronics Forum | Tue Mar 01 10:31:26 EST 2005 | Greg
QC --> Touch-up --> QC --> Assembly After SMT all PWB goes to QC, QC Inspects and marks all that needs rework then PWB's goes to Touch-up to fix what QC marked for rework. After that All reworked boards goes to QC for another verification and stampi
Electronics Forum | Sun Mar 06 17:39:15 EST 2005 | Darby
1st law of Surface Mount. You WILL run out of parts on the last board going through before a long weekend. 2nd law of Surface Mount. Touchies WILL touch. I'm with Russ and Rob. Touch up is EVIL and should only be tolerated in exceptional circumst
Electronics Forum | Tue Oct 26 12:18:53 EDT 1999 | Gary Kemp
We are having a discolorization problem with the gold fingers on our PCB's. I have been made aware that there is a gold touch-up paint (masking) that is available. Would anyone know where I can get my hands on some of it? Any help would be appreci
Electronics Forum | Thu Mar 20 12:31:47 EST 2003 | gregcr
hi all Can anyone give me a place to get touch up paint for the GSM exterior. I had the Sherwin Williams paint code but it seems I have misplaced it. Thanks for the help!
Electronics Forum | Thu Aug 26 22:32:04 EDT 2004 | Indy
Hey, We have introduced a Cleaning Pen from Chemtronics. It removes excess flux after touch up.. This way the operator doesn't have to go everytime to the cleaning room.. Indy
Electronics Forum | Fri Feb 11 08:20:25 EST 2005 | Rob
Depends what the joint is on, and how historically it has performed - ie. is it a part that won't wick on the wave, or near a ground plane that never forms properly. It may be that they know something you don't about the board. However any info s
Electronics Forum | Tue Mar 01 10:43:59 EST 2005 | Rob
Hi Greg, Is anyone logging the errors at QC/touch up stage so they can feed them straight back to SMT and fix them? (i.e. skipped components, poor paste coverage etc) Obviously the faster you spot an error the cheaper it will be for you. Cheers,
