October 2011 cover

 

FEATURES

EMS Profile
Out of the Fire, ACD Heats Up
Years after its building went up in flames, the Dallas-area design service bureau has transformed into a fast-growing contract electronics assembler.
by Mike Buetow

Inspection
Why Does SPI Have Such Huge Tolerances?
Automated solder paste inspection, a must for most PCB assemblers, appears to use ridiculously wide specification limits. Most SPI program generators read a stencil Gerber file and set the target paste deposit volumes to 100% of the apertures’ theoretical volumes, with tolerances of +/-50% – a ridiculously enormous tolerance.
by Chrys Shea

 

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