Electronics Forum | Wed Feb 23 16:38:41 EST 2000 | Michael Parker
I have experienced tombstone with one brand of 0603 capacitor. Swapping in another brand (actually two different brands to date) has stopped the tombstone. I have measured the parts (length, width and height). There does not appear to be any apprecia
Electronics Forum | Wed Feb 23 16:38:41 EST 2000 | Michael Parker
I have experienced tombstone with one brand of 0603 capacitor. Swapping in another brand (actually two different brands to date) has stopped the tombstone. I have measured the parts (length, width and height). There does not appear to be any apprecia
Electronics Forum | Mon Dec 02 21:32:34 EST 2002 | davef
Sounds like you're killing the poor little critters. Tell us about: * Placement force. * Reflow method. * Where and how you are measuring your reflow recipe. * Cooling rate of the reflow recipe. * How the solder connection to the metalization appear
Electronics Forum | Tue Aug 17 11:28:07 EDT 2004 | rlackey
Hi, I'm not the expert DaveF is, however I have seen quite a few cracked chip capaictors in my time - most of these were from lack of Z height adjustment on a turret chipshooter to compensate for various thickness. Do you have separate 1206 thick
Electronics Forum | Tue Aug 30 17:02:16 EDT 2005 | stepheniii
Check them before the oven for cracks. (after placement) Don't just look at them, take them off the board and check. I"ve seen resisters that were broken by the machine but you couldn't tell untill you took them off. If they are cracked check the co
Electronics Forum | Tue Sep 19 18:06:05 EDT 2006 | lheiss
Does anyone know of a source for better documentation for the laser align settings? I managed to get a 1206 ceramic capacitor to measure and was working on a 1206 resistor and couldn't get it to succeed. I retried the cap and it failed again and ag
Electronics Forum | Tue Jan 02 02:30:18 EST 2007 | _____
Ahh yes, 254. Don't give up on the other vision types. 254 can give you skewing as well. Your width and height are awfull close. Even with the 0.5 tolerance it is using the tolerance and saying that it is OKAY. Maybe what you measure is 1.8mm for wit
Electronics Forum | Thu Aug 25 07:43:24 EDT 2016 | claudea2
We have been having a recurring error on one of our Quad 4Cs. When it picks up the first of 8 47uF SMT capacitor it stops with a limit error. If we do 2 consecutive function 30s, the problem goes away until the next board. The first function 30 re
Electronics Forum | Wed Dec 02 16:35:21 EST 2020 | kylehunter
> Hi Kyle, As per IPC 610, for class 3, this is > not acceptable, as your minimum fillet height has > to be either one of these two, whichever is > less: - solder thickness + 25% of the termination > height - solder thickness + 0.
Electronics Forum | Sun Dec 24 15:30:07 EST 2006 | pima
hello Everybody I would like to ask you for advise. I'm fighting with correct placing one of capacitors in TNT-A package at CP-6 machine. Size of this component is: L=3,4 mm W=1,7 H=1,7 Its Tantalium with J-lead. I use for this component vision type
