PCB Fabrication Release Package: A Practical Handoff Checklist

Create one controlled fabrication package that identifies the board, includes the manufacturing data and makes exceptions visible before production starts.

Define what you are releasing

A fabrication release is a specific version of a board, not a collection of the newest-looking files in a project folder. Give the release an identifier and state whether it is approved for quotation, prototype fabrication or production. Include the responsible contact and the date so a supplier can resolve questions against the right package.

Keep working files separate from the released archive. If you discover an error after sending a package, issue a replacement revision and explain the affected items. Sending a single corrected layer without saying which archive it replaces makes it difficult to establish what was actually manufactured.

Build the file inventory

• Board identity, revision and a short description of the release scope.
• Manufacturing layer data and the required drilling or routing data.
• A fabrication drawing with dimensions, tolerances and construction notes.
• The layer stackup and any controlled-impedance requirements.
• Test requirements and a list of approved deviations, if any.

Use an inventory table to explain each file’s purpose. Name the intended top and bottom layers and identify internal layers in stack order. Do not assume that the recipient will infer an unusual layer name or mechanical convention correctly.

Review the exported result

Open the manufacturing files themselves, not just the native layout. Overlay the copper, mask, profile and drill information to check that they describe one aligned board. Confirm the outline is the intended finished shape and check features such as internal cutouts, slots and non-plated holes.

KiCad’s fabrication output documentation distinguishes Gerber plotting from drill-file generation. That distinction is a useful reminder for any workflow: a visually convincing layer export does not establish that the complete drilling data have been included.

Resolve inconsistent instructions

Compare the drawing, order form, stackup and file inventory. If the order form requests one finish while the drawing requests another, record and resolve the conflict. A supplier clarification should identify the original question, your answer and the release to which the answer applies.

For example, if a routed slot was added to revision C but the dimensioned drawing still shows revision B, regenerate and review the package together. Do not expect the manufacturer to decide which document represents your intention.

Close the handoff

Retain the exact archive sent and the supplier’s confirmation of the revision accepted for production. Store technical questions and approved changes beside it. The DFM checklist can support the review, but the released files and documented answers remain the manufacturing instruction.