Electronics Forum: missing components in placement (Page 1 of 15)

missing component after placement

Electronics Forum | Wed Jan 26 21:23:51 EST 2000 | Dennis

Hello! all Will anybody give me advice for missing componets for 0402, 0603 R or C chips? I am not gonna tell you which machine I use, but from my experience, every p&p machine has possibility for missing component after placing 400 or more componen

Re: missing component after placement

Electronics Forum | Wed Jan 26 21:38:53 EST 2000 | Dave F

Dennis: I cast my vote for: poor maintenance. Ta Dave F

Re: missing component after placement

Electronics Forum | Thu Jan 27 19:14:27 EST 2000 | Dennis

Thanks! It is right that solder paste is somewhat responsible for misssing components in our case. I took a look at the board after placement and I found that component hit the paste, but no where on the board. I guesss dry solder paste (operater pri

Re: missing component after placement

Electronics Forum | Thu Jan 27 10:22:21 EST 2000 | JAX

Dennis, Not sure why your so secrative about what machine but I guess it doesn't matter. When you start placing 0402 & 0603 packages the difference between height and width and length gets lost in tolerance. This allows the machine to pass parts t

Re: missing component after placement

Electronics Forum | Thu Jan 27 07:18:14 EST 2000 | Christopher Lampron

Dennis, The solder paste is responsible for holding the component in place pre-reflow. Several things to look at: Is the paste accurately printed on the pad? If not, there may not be enough of the component in contact with the paste to provide adiq

Component missing in siplace mounter

Electronics Forum | Mon May 06 11:50:15 EDT 2019 | sankarseptember

I am using siplace XS Series mounter..I am getting component missing.. atleast one or two per shift production..I wonder this machine don't have option to check at last if any miss or thrown up component.what I need to check? I need any expert in sip

Component missing in siplace mounter

Electronics Forum | Wed Jun 05 10:16:29 EDT 2019 | emeto

Sankar, it looks like you need an expert to help you. Missing component might be related to hardware, machine setup or software issues on you equipment which will require a tech or engineer to investigate.

Component missing in siplace mounter

Electronics Forum | Mon May 06 16:34:20 EDT 2019 | tey422

First of all, I am not familiar with the machine you stated. But there is something you should check out. That is if the nozzle tips having solder paste stick to it or not. If nozzle tips having a fresh paste stick to it, the component might not a

Component missing in siplace mounter

Electronics Forum | Tue May 07 12:50:17 EDT 2019 | sankarseptember

Thanks for the response Thomas..You are correct I got solder paste on both edge on the nozzle type 4007. But it uses for nearly 30 types of part number ..and also I will get missing without any issues in nozzle..I am unable to find the trace in that.

Component missing in siplace mounter

Electronics Forum | Tue May 07 13:49:05 EDT 2019 | tey422

Like I stated before, I am not familiar with the machine. I can only make suggestions. If you found solder paste on the nozzle, clean it off to prevent part stuck to the nozzle tip. I would also check if the nozzle tips are being worn off; uneven we

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