Electronics Forum | Thu Nov 29 22:38:05 EST 2007 | shy
Hi Dback, Yes, i'm open "dog bone" aperture for my chip component. this is to prevent solder ball issue. For fine pitch i'm opening square with full length and half width to prevent bridging. Btw, if "dog bone" is not for chip component, what is your
Electronics Forum | Mon Jul 30 21:10:32 EDT 2001 | davef
The 5DX weighs 8000 pounds. Can your product bear the overhead? We use acoustic microscopy to find BGA opens. We have not had good luck finding opens with other inspection technology. Has Agilent told you that you can detect BGA opens? How is th
Electronics Forum | Mon Nov 08 15:14:46 EST 2004 | russ
In addition to type of paste, it is also dependant on the enviroment conditions. When you say open jar are you implying that the jar is left open all day and then at the end of shift it is closed back up? Jars should only bve open for about 30 secs
Electronics Forum | Tue Nov 30 11:09:16 EST 2004 | fcox
Mesh opening size may be a factor in whether or not the paste will pass but only in very fine line deposition. Generally speaking, the printed line width and deposition thickness determine what mesh to use. The paste supplier will be able to tell you
Electronics Forum | Wed May 04 15:01:23 EDT 2005 | Dr. Klein
Thanks siverts, The problem with open the sealed MSD bags before the production, is from the rezone that we don�t know exactly when the production start. If we will open the bags before production there is a possibility that the component will be ou
Electronics Forum | Tue Sep 13 09:12:12 EDT 2005 | stepheniii
I couldn't find any sanctioned procedure for dragging a pick across the leads to check for opens. I've never been a big fan of this anyways. Other than visually inspecting under a microscope and touching the leads that look suspect is there anything
Electronics Forum | Thu Feb 08 15:05:32 EST 2007 | realchunks
Wow, what a bunch of crabby old men. BGA opens can occur from pre,during or post process. I never chimmed in cause the original poster said they would performa a dye test. Yet as usual, they never get back to this forum on what the cause was. So
Electronics Forum | Mon Nov 09 16:05:29 EST 2009 | sawyer
Hi, i have a big problem with a BGA, and i have no idea where could be the broblem because eveything seems to be ok(printing, placement, reflow). I have arroud 2-3% Opens from the quantity of boards produced during a shift. Can enybody help me with s
Electronics Forum | Mon Sep 20 14:23:50 EDT 2010 | dekhead
No, there is not a way to initialise into the diagnostics menu with the head raised / covers open. Literally lowering the head manually (prop head, disconnect actuator, etc) is naturally possible, but not receommended... and based upon your symptom
Electronics Forum | Tue Oct 20 08:38:17 EDT 2015 | nhel_0009
good day, we're encountering trouble in CM602 Mounter and still looking for help..here is the error(cover open A stage front and rear, ext conv open/ConveyorHoleSensorDetect, Outside cover open, Momentary power off. Anyone knows the error ple
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