Electronics Forum | Thu Nov 03 11:35:51 EDT 2022 | proceng1
Also, be sure that your support pins are set correctly and do not allow the board to sag or bounce. Next, is your z correct? Its possible you are pushing the part so hard into the PCB that it's pushing back up or even bouncing the board and throwin
Electronics Forum | Tue Aug 01 16:29:01 EDT 2017 | tey422
Try the method I mentioned earlier, it greatly improves most of the picked-but-drops issues. We never need to use any custom make nozzles, even for the trapezoid dome shaped LED we were having the issue with. Use smaller round diameter nozzle would
Electronics Forum | Thu Nov 03 11:31:51 EDT 2022 | proceng1
You described cleaning the spindles and filters, but did you clean the nozzles? Perhaps you got some paste on the nozzle. Also, did you perform the vacuum and blow off testing? Make sure your solenoids are working properly. Is it all 6 heads that
Electronics Forum | Tue Aug 01 13:31:48 EDT 2017 | tey422
There is one thing to be checked too. That is to make sure the nozzle not going too deep when lower to pick up the part. I found a lot of picking errors issues are due to nozzle going down too deep into the pocket. If it does, it pushes the component
Electronics Forum | Fri Feb 18 13:15:10 EST 2005 | need help
we are having problem with the flipchip sticking to the tape and reel cover, jumping around the tape pockets, and double stacking at placement during production. Does anybody else have this problem? Does anybody have a solution.
Electronics Forum | Sat Feb 19 09:31:30 EST 2005 | davef
Potential causes are: * Static charge [get a deionizing fan] * Adhesive on the inside of the cover tape [fix your supplier]
Electronics Forum | Mon Feb 21 03:56:34 EST 2005 | abhirami
Agree with Davef. Smaller the chip, more the static charge. I used to see this even with normal chips. Get an ionizer blow. It should solve your problem. May be switch to antistatic tape if affordable.Regards. GV
Electronics Forum | Mon Feb 21 12:51:30 EST 2005 | need help
Thanks for your help. We try the de-ionizer fan, helps some what but did not eliminate the problem. Can you tell me which model are you guys using.
Electronics Forum | Thu Oct 20 05:58:19 EDT 2005 | Slaine
Hi could be relaited to the thermal mass of the screw/bolt. if there is no intermatalic formed and the solder just picks off id say this is likely. the hot wave hits the cold screw and cools the solder enought to leave some behind??
Electronics Forum | Wed Feb 17 08:49:57 EST 2010 | patrickbruneel
Interesting report related to the Toyota recalls potentially caused by electronics failures. Chapter 9 is appropriate to this forum. http://www.nutwooduk.co.uk/downloads/Toyota.doc
