Electronics Forum | Tue Sep 12 07:33:44 EDT 2017 | stephendo
You mean why did they stop marking chip caps.
Electronics Forum | Wed Sep 26 11:58:13 EDT 2001 | Fox
Don't hold me to it but... Class 1-process indicator, varify value (cap, resistor) Class2,3-failure (rework required) This is what we used at my former job when i took over QA responsibility.
Electronics Forum | Fri Sep 25 10:28:08 EDT 2009 | leemeyer
Are you running Q-soft software or is this an older machine running central controller ? Do you have seperate profiles set up for 0603 caps and 0603 resistors or just one profile for all 0603 parts. It sounds to me that you might be scanning to low a
Electronics Forum | Mon Oct 30 08:47:39 EDT 2017 | philc
As an AOI operator as well, I can see your point, but what about 0402 parts, and all chip capacitors? These parts are not marked, but I presume you accept those? In relaity, an unmarked resistor is no different to any cap, and you don't worry about t
Electronics Forum | Thu Feb 03 04:55:21 EST 2005 | Dougs
OK, component wide portion runs with the conveyor, so really both sides should heat and cool at the same rate. The crack is at the termination between end cap and ceramic body and run vertically up the end cap, so when we remove the cap it comes of
Electronics Forum | Sat Jun 12 16:33:52 EDT 1999 | JohnW
| | Our company is experiencing cracked caps at our pick and place operations. The caps are being placed onto epoxy dots for subsequent wave solder operations. At present, be have set the pressure of the head at 2 in/lbs. This being down from manuf
Electronics Forum | Thu Oct 28 16:15:24 EDT 2010 | duchoang
If everything else is OK, capacitors quality could be the cause of this issue. Some caps could have been contaminated or the metal mass not even between two ends. Try different kind (manufacturer)of cap.
Electronics Forum | Fri Mar 09 08:25:13 EST 2001 | CAL
We have seen some problems with component end cap solder terminations not being symetrical. i.e. If one end on the cap has a larger solder ternination this sometimes is enough surface area during reflow to lift the opposite side of the component. We
Electronics Forum | Tue May 06 14:52:37 EDT 2003 | bremerg
Pictures are now located at http://www.stevezeva.homestead.com/ These components are 2W resistors that only see 1/2W at max. during normal use. I have contacted IRC still wqaiting for a response. The resistors were tested as good. But the circuit
Electronics Forum | Mon Jun 14 08:48:29 EDT 1999 | Adam Pratt
| | | Our company is experiencing cracked caps at our pick and place operations. The caps are being placed onto epoxy dots for subsequent wave solder operations. At present, be have set the pressure of the head at 2 in/lbs. This being down from man
