Electronics Forum | Sat Sep 04 11:58:44 EDT 2004 | Dhanashekar
Can anyone suggest me if it is necessary to measure the paste thickness after contact Screen printing.Is it a very vital parameter for the production process?
Electronics Forum | Sat Sep 04 18:52:51 EDT 2004 | iqbalb
Yes it is vital for process control.
Electronics Forum | Thu Sep 09 14:41:28 EDT 2004 | Martin
Shark here, reporting for duty.... www.kohyoung.com High speed, 3d 100% paste inspection.
Electronics Forum | Tue Sep 07 09:53:37 EDT 2004 | rob
Hi Dhanashekar, I'm with Chris on this one, unless you are carrying out 0201 or ultra fine pitch placement it's a helpful but not critical tool. We found most print errors were avoided using the 2D vision on the printer, combined with plenty of aut
Electronics Forum | Wed Sep 08 16:21:41 EDT 2004 | rohman23
I'm in a similar situation. We have a pre-historic semi-automatic printer that does a decent job, but would like to get an automatic printer. I've only just begun looking into the different options available, but would like one that could inspect t
Electronics Forum | Tue Sep 07 06:32:32 EDT 2004 | C Lampron
Dhanashekar, Yes this is an important proces control tool. This will show if you printer setup is correct however, I put more importance on coverage. If your paste height is 1 mil shorter than it should be, you may need to look at your printer setup
Electronics Forum | Thu Sep 09 04:15:36 EDT 2004 | Rob
Hi Chris, We use MPM's, where you can set the paste inspection to look at whatever you want it to (remember this does slow cycle time down) and we swear by them. However I have also met many happy DEK users who believe their machines are equally as
Electronics Forum | Wed Jan 25 16:18:12 EST 2012 | wrongway
Your uising 6 mil thick screen on 0603 and sot-23 and you think you need more paste? when i use a 6 mil screen on a sot-23 and 0603 it is almost to much paste. 5 mill does just fine on those parts but if you think you need more paste then don't go t
Electronics Forum | Wed Jan 25 14:40:36 EST 2012 | gaz
We are using 6 mil screens, and these boards have 0603,SOT23 and SOD523. Seems like we could use *more* paste, not less on a lot of these components, so does it make sense to get a thinner screen? Wouldn't this mean we'd get less paste?
Electronics Forum | Mon Feb 06 21:24:21 EST 2012 | gaz
By changing paste and making a better profile, it seems like we have enough paste. The process was just not working very well with SN100. So far the 5mil looks good, so thanks for the input!
