PCB prototypes that answer the next design decision
Request bare PCB prototypes through KFPCBA with the files, quantity and verification purpose for this revision. The useful result is a board and record package that helps you decide what to change or release next.
Bare-board prototyping covers fabrication. For populated samples, use prototype PCB assembly; if the circuit or layout still needs work, start with PCB design support.
Match the prototype to what you need to verify
| Build purpose | Inputs to freeze | Evidence to request |
|---|
| Mechanical fit | Board outline, holes, slots, connector relationship and dimensional definitions | Measured characteristics and their drawing revision. |
| Fabrication and connectivity | Layer order, drill definitions, material, copper and finish | Board identifiers and the agreed dimensional, continuity or other inspection records. |
| Controlled transmission | Actual stackup, critical nets, target and tolerance, coupon relationship and method | Impedance verification connected to the relevant board/coupon and construction. |
| Transition to a repeat order | Prototype changes, approved substitutions, closed issues and replacement fabrication package | An approved release and a clearly defined first production-lot scope. |
Check one complete fabrication release
Package copper, solder mask, legends, drilling and the outline from the same export. Identify plated and non-plated holes and any blind/buried layer pairs. Add the stackup, material, finished copper, surface finish, quantity and delivery form.
The Gerber and drill checklist explains file checks. For prototype materials, record the exact approved grade: a temporary substitution does not automatically qualify the intended production construction.
List CAM questions and their approvals, then replace the whole release package after a design change. Do not leave a revised drill file mixed with an older copper-layer archive.
Compare cost and delivery without changing the question
Separate engineering setup, material and panel use, fabrication, electrical testing and specified reports. Align accepted individual-board quantities, panel delivery and treatment of defective positions. Special inspections and shipping should be visible in the comparison.
Read the prototype quote comparison before comparing totals. An order for a few boards still needs setup and review; a larger quantity cannot resolve an undefined material or revision.
Identify engineering approval, material readiness, manufacturing completion and delivery as different milestones. The project quotation defines the applicable schedule.
Close the prototype before increasing quantity
- Link measured results and observations to actual board identifiers and the fabricated revision.
- Resolve material, hole, outline and stackup changes in the released manufacturing package.
- Carry assembly or bring-up findings back into the board design when they affect fabrication.
- Retain open risks and the checks required for the next build instead of treating receipt of boards as full product validation.
Request a PCB prototype review or send the available fabrication package through the engineering RFQ.
