Hi mates,
need some help to resolve a thumb-twine situation.
As a high-mix, low volume prototype build house, we always conduct a first article inspection (FAI) on every model setup conversion in the SMT production Lot run. we do this FAI by mounting all components onto respective BOM designated location into a sample double-side tape "sample" board. QA will measure 100% component values (or visual check body markings are correct) against each designated location. orientation check is done too. chip components are not recycled. IC and A-times are return to IC tray or handmounted.
one customer claims its components (RES,CAP,IC...) are military specs components and too costly to "lose" for FAI purposes. they want us to remove the FAI and convert it into a inline check of the feeders against our locading list. actually this is what we have been doing (front end check) in addition to our FAI (back end check). this helps double confirm the latest BOM and drawing is used to check the use of lastest SMT program. it also confirms lack of the applied use of any ECN in hardcopy comparision.
anyone have shopfloor system(s) experience to share with us, what is the best way to conduct a inline feeder check and remove the FAI, yet at same time retain the system integrity to assure no wrong parts (values/part no.) loading?
and ensure wrong REV. control of the SMT program can be filter out? actually what we are looking for is what preventation practices do others use? and if that prevention fails, what detection of wrong REV can be implement?
appreciate all the avaliable help, here. Thanks.
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