Electronics Forum | Sun Feb 15 18:07:18 EST 1998 | Scott McKee
| I am beginer in BGA assembly and am confused in selection of pick and place option. As per book on 'implementation of BGA Technology-by 1995 aeic inc. states that BGAs reflow is quite forgiving and you need only Mechanical centering of PBGAs. The I
Electronics Forum | Sat Feb 14 13:28:47 EST 1998 | ASHOK DHAWAN
I am beginer in BGA assembly and am confused in selection of pick and place option. As per book on 'implementation of BGA Technology-by 1995 aeic inc. states that BGAs reflow is quite forgiving and you need only Mechanical centering of PBGAs. The IPC
Electronics Forum | Sun Nov 06 13:12:17 EST 2005 | sk
Hello, I use Siemens MS128 & HS180. I need to place a lot of TO-252AA, SOT223, ... components. At the moment I use only mechanical centering but I want to center these components opticaly. There is no problem to center chips and other symetrical com
Electronics Forum | Sat Feb 14 13:33:10 EST 1998 | ashok dhawan
| I am beginner in BGA assembly and am confused in selection of centering method on pick and place operation.. As per book on 'implementation of BGA Technology-by 1995 aeic inc. states that BGAs reflow is quite forgiving and you can use Mechanical c
Electronics Forum | Fri May 04 19:23:28 EDT 2007 | darby
System > Machine Config > Mechanical OP > Head 3 Spec = Vision. Data In > System > Machine Config > Mechanical OP > M Centering 1 = Yes If your Centering unit is a two stage unit then also set M Centering 2 = Yes You should then be able to roughly
Electronics Forum | Fri May 04 01:34:07 EDT 2007 | dsd
Your Head 1&2 have Chucks, is Head 3 a Chuckless Head? The Chuckless Head or Precision Head is the intended Head for use with the Centering Station only. Using Head 1 & 2 is not good as there is too much nozzle play. In your Machine Configuration is
Electronics Forum | Fri May 04 02:32:10 EDT 2007 | jmelson
Thanks! Well, the procedure in the book says to first calibrate the mech aligner with the beam sensor, but that exceeds the X travel. I guess you can just eyeball it off the nozzles and then use trial and error. While poking around on the machine
Electronics Forum | Thu May 03 22:51:14 EDT 2007 | jmelson
I am still learning the CSM84, but have gotten one board programmed and working. Now, I'm doing the next board, and need to use the mechanical alignment unit for a 22 x 22 mm TQFP. This chip is too large to clear the jaws on any head. Can the CSM h
Electronics Forum | Fri Nov 07 18:12:50 EST 2014 | cot628
This issue is coming from a customer. The customer demands that we do not mechanically center or test passive components, because of issues they had in the past. There has been a studies that it takes about 8-10 newtons to damage chip. Most of our pa
Electronics Forum | Mon Nov 10 09:11:51 EST 2014 | rgduval
The centering jaws are made out of copper, I believe...and conductive. I'd suggest that the conductivity of the copper makes it a fairly poor source of ESD damage in a component. I have observed physical damage to components from the centering jaws
