A number of tasks must be completed before you receive your assembled PCBs. These tasks include:
- Order review
a) Confirm quantity and lead time
b) Confirm solder 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
- PCB Inspection and Parts Auditing
- Solder paste stenciling is the process of applying solder paste to a printed circuit board using a SMT stencil. We fabricate our SMT stencils in house using the latest laser technology from LPKF. We have years of experience designing and fabricating SMT stencils.
- Program pick and place machine and populate your PCBs. We exclusively use Mycronic MY300 and Yamaha YSM20 pick and place machines. They are considered the best pick and place machines for prototyping and production.
- Select the right thermal profile for your PCBs (or design a new one) and solder your PCBs. We use BTU reflow ovens for regular reflow soldering and a vapor phase reflow oven for jobs with special soldering requirements.
- Inspect visually and with an AOI machine each PCB as they come out of the oven. X-ray every leadless devices (e.g. BGA and QFN).
- Machine wash with deionized water your assembled boards (water soluble is our standard flux). PCBs with no-clean flux are not machine washed.
- Through-hole component insertion
- Program selective soldering machine and solder through-hole components.
- Final QC Inspection
- Functional test
- Package and ship your assembled PCBs with any remaining material.