Electronics Forum | Thu Oct 19 12:00:55 EDT 2006 | sliebl
Can anyone tell me if they are aware of any pick and place machines that can use 'randomly placed' local fiducials? Now, let me explain... Our machines (Contact 3S, and 3AV machines) can use local fiducials in several ways. We can use a single center
Electronics Forum | Wed Dec 06 22:46:39 EST 2006 | SMTrework
Hi Dave, This is manufacturer applied epoxy / adhesive to minimize package "lifing" from chassis flexing and thius board flexing. I have seen the complete array area covered with this black or red epoxy in some cases (i.e. the underfill that I've
Electronics Forum | Thu Dec 07 03:21:54 EST 2006 | Guest
Materials you see are corner bond adhesive, main purpose of this is mechanical shock absorber , it promotes additional adhession to lessen stress to solder joints incase device subjected to mechanical stress like dropping.By function, corner bond
Electronics Forum | Tue Nov 15 15:37:05 EST 2011 | comatose
I have a new (to me) Vitronics XPM3 oven which we're hooking up. It requires 480V, and I only have real 208V in the facility. I have a transformered up 480 subsystem, but its corner grounded rather than center grounded. The XPM3 manual suggests tha
Electronics Forum | Tue Aug 04 14:28:39 EDT 2020 | ttheis
Yes, I am certain it is 240 corner grounded delta. It confuses many electricians and it took me some time to understand. It is fed from a 480:240 delta 200A transformer. As I mentioned, they have a lot of Bridgeport 3ph machines and cnc machines conn
Electronics Forum | Tue Sep 29 17:14:15 EDT 1998 | Cunli Jia @ SMTnet
I am testing the new Admin Corner and inviting your comments on the new features of the Forum. Thanks in advance. Cunli
Electronics Forum | Fri Aug 22 14:38:21 EDT 2003 | russ
Please search the archives, there is a ton of stuff on this. Russ
Electronics Forum | Thu May 13 13:18:51 EDT 2004 | cyber_wolf
Is this feature still available on this website ? Is there still some way to look at an individuals postings ?
Electronics Forum | Fri Jan 13 09:13:53 EST 2006 | Rob
......sorry, I'm off to the naughty corner.
Electronics Forum | Thu Oct 19 14:20:18 EDT 2006 | sliebl
Something that I find unusual in some of the replies is the fact that local fids that are randomly dropped around the quad don't do anything for assisting the alignment of said quad. The only way that I am aware of the local fids being useful is if t
