Electronics Forum | Fri Mar 02 15:01:32 EST 2007 | dyoungquist
We have a TP9 and are having no problems placing 0402s or fine pitch QFPs. Try slowing down the accelerations on the X and Y axis. That increases the time it takes to place a part but I have found that it can help accuracy. All the other posts hav
Electronics Forum | Tue Nov 07 14:34:04 EST 2006 | jeffm
We are using Kester Type R520A, Alloy SN96.5/A63.0/CU.5 paste which is applied using an MPM Accuflex machine. Our plant Humidity is 38 degrees. We are seeing insufficient paste post stencil on fine pitch parts. Could this be an environment issue? In
Electronics Forum | Thu Dec 07 20:00:10 EST 2006 | mgdrouin
Can anyone help me with some information regarding microscopes? I need to purchase several that will be used for fine pitch soldering and inspection. The company is currently using Alhpa ISIS scopes and would like to purchase more of the same type.
Electronics Forum | Thu Feb 15 16:01:53 EST 2007 | jdengler
Bert, Clean the emitter disk of the nozzle you use for this part. Set everything in the PD back to where it should be and set the "Lead_check_area" to 10. This will look at 10% of the end of the leads. This will help if the leads do not have even
Electronics Forum | Tue Mar 06 06:34:13 EST 2007 | pavel_murtishev
Good afternoon, We use both brands. Speedline�s latest printing machine generation is as good as DEK. It�s my humble opinion only. But AP 25 vacuum support system starts to fail even with fine pitch. Thanks for your input anyway. BR, Pavel
Electronics Forum | Wed Mar 14 13:16:54 EDT 2007 | Shane
I have a customer that designed a fine pitch BGA into a board, and has put small vias in the middle of each pad on the PCB. Anyone have any ideas on how I can prevent the solder from the BGA from flowing through the vias and causing voids or no cont
Electronics Forum | Wed Apr 25 04:57:36 EDT 2007 | Rob
I'm reading that the same as you - which would mean everything we have scrapped (disposed of responsibly) in fine pitch, including such diverse things as resistor networks (MNR18's for example) and TSSOP's would be exempt, and we've basically flushed
Electronics Forum | Mon Nov 26 10:08:56 EST 2007 | kevslatvin
I have been using it and noticed it seems to get runny after it has been out on the stencil awhile. Couple hours or so. At that point we've had some problems with the paste smearing on some fine pitch stuff(0.020"). I sped up my squeegee speed and it
Electronics Forum | Wed Feb 06 17:24:04 EST 2008 | blnorman
We had a vent block up not too long ago ourselves. Saw multiple solderjoints, especially on fine pitch micros, that looked like they had alligator toes. We solder bump, so it was obvious that area didn't get hot enough to liquify the solder and hav
Electronics Forum | Mon May 05 15:40:34 EDT 2008 | Mag10
One of my customers is requiring to drag a pick (Menda) on 100% of fine pitch leads. This is old practice and we got rid of this long long time ago because it causes more problem than fix such as joint damages, abrasion of pick, control of the pick a
