Electronics Forum | Tue Jun 24 12:56:26 EDT 2014 | jmathis
Hello, As our company has begun doing an increase production of contract manufacturing I have seen more and more designs with the 0402 pad layouts that are smaller (.015 in width) than the component. Also there is only a .008 longer than the 0402 p
Electronics Forum | Fri Jan 05 12:17:31 EST 2007 | Cmiller
Our first pass yield across all our products is above 95% but we include anything that does not meet IPC standards. Probably 75% of our failures are not electrical. AOI is a great tool to get a consistent measure of your process. I dont know how anyo
Electronics Forum | Fri May 05 11:11:05 EDT 2000 | Stefan Witte
The placement defect rate also depends on the shape of the components. 0402's have a higher defect rate than 0805's for example. If the board is very dense populated, chances are that a misplaced part knocks off another part and all of the sudden the
Electronics Forum | Fri May 15 00:07:38 EDT 2015 | aapsmt
there can be so many different causes. can be component library height issues. step program z axis offsets - i have seen accidental positive values entered so the components are literally dropped onto the pcb haha. but it does depend on the size of
Electronics Forum | Wed Jun 11 12:29:19 EDT 2003 | JB
There are many variables that could cause components to be misplaced. Using the overall tack time reduction is in reality putting a band-aid on a larger problem. Are your small components shifted as well? ( 0402,0805 tec) Components "twisted or off
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