The following tasks must be completed before you receive your assembled PCBs.
Review order a) Confirm quantity and lead time b) Confirm solder paste type (lead or lead free) c) Confirm flux type (water soluble or no-clean) d) Review design files (Gerber files, BOM, centroid file, assembly drawings, etc.) e) Prepare assembly document.
Inspect PCBs and auditing parts.
Design and manufacturer SMT stencil(s) if PCB has SMT components.
Program pick and place machines to populate PCBs with SMT components. We use Mycronic MY300 for prototyping and Yamaha YSM20R for production.
Design thermal profile for PCBs.
Perform a visual and AOI inspection on each PCB. X-ray every leadless device (e.g. BGA and QFN).
Machine wash assembled PCBs with deionized water. Water soluble is our standard flux. Assembled PCBs with no-clean flux are not machine washed.
Insert through-hole component(s) if applicable.
Program selective soldering machine and solder through-hole components.
Perform a final QC inspection.
Perform functional test if applicable.
Package and ship assembled PCBs with any remaining material.