PCB & PCBA Guides

Engineering guides for PCB fabrication, PCB assembly, RFQ preparation, manufacturing data and project review.

Controlled Impedance PCB: Specify Geometry, Tolerance and Verification

Specify controlled impedance with a structure schedule, accepted geometry, coupon representation, TDR reporting and a clear change-approval process.

Review PCB arrays across fabrication, assembly, test and depaneling with a process-owner matrix and practical checks for product-edge conflicts.

Build a PCB RFQ package with a clear revision, fabrication files, construction requirements and an engineering question log before ordering.

Review Gerber layers, drill data, outlines and fabrication notes together, with practical checks for coordinates, revisions and file conflicts.

Review PCB layer roles, local dielectric construction, copper, via spans and verification before the final layout depends on a proposed stackup.