Why two quotes for the same Gerber files differ: the process decisions behind a PCB and PCBA price, from panel utilization and layer count to finish, testing and lead time.
A practical DFM checklist for PCB buyers and engineers: tolerances, stackup, aspect ratio, surface finish, materials and inspection steps to confirm before you order.
Compare common PCB surface finishes including HASL, ENIG, immersion silver and OSP to match finish to application and assembly needs.
What AOI, X-ray, ICT and functional test each actually catch, where each one stops, and how a real PCB and PCBA test plan layers them in sequence.
A practical checklist for sourcing PCB fabrication and PCBA assembly, covering capability, quality control, lead time and engineering support.
A comparison of HDI and standard PCB construction, covering via types, line width, layer count and typical applications.
How to choose the right layer count for your board by balancing routing density, signal integrity, cost and lead time.