One order instead of several suppliers
Electronics assembly is usually split up: bare boards from one vendor, parts from a distributor, assembly at a third, testing at a fourth. Each handover adds packing, freight, a fresh incoming inspection and a schedule that slips independently of the others — and when a finished assembly fails test, the first question is which supplier owns the defect.
In a turnkey order that whole chain runs inside one plant: boards fabricated, components bought by the sourcing team, surface-mount and through-hole assembly run on the same lines, then inspection, test, coating, firmware and packing. One quotation, one schedule, one owner.
Full turnkey and partial turnkey
- Full turnkey — the customer sends the design data and receives tested product. Fabrication, parts, assembly, test and packing are all bought and built here.
- Partial turnkey — the customer supplies the bare boards, or selected critical components, and everything else is handled here. This is common where the customer already holds stock, must control a specific component themselves, or wants the design to remain with their own fabrication partner.
Both models run on the same lines with the same inspection gates, so switching between them does not change how the boards are built.
What stays inside the plant
Fabrication and assembly sharing one roof shortens the loop that matters most: when the assembly team finds a footprint or panelisation problem, the fabrication team is a walk away rather than a shipment away. Stencils are cut on site within four hours, prototypes come back in 1–3 days and medium volume in 4–10 days.
Inspection runs along the line — SPI before placement, AOI after reflow, X-ray for BGA and QFN joints — then in-circuit or flying probe test and functional test against the customer's procedure. Firmware is loaded and the product configured before packing, so what leaves the plant is a working unit rather than a populated board.
Where the model fits
Full turnkey suits programs with a defined product and a schedule to keep — the fewer interfaces, the fewer ways the schedule can slip. Partial turnkey suits programs where part of the supply chain is fixed by contract, by a customer's existing stock, or by a component that must be bought by the customer themselves. Consignment assembly covers the case where the customer supplies all the electronics.
For products that need an enclosure, harness or accessory fitted before shipping, the box build service completes the unit; where the design is new, the prototype service validates the build before volume starts.
Getting a turnkey quotation
Send the Gerber set, the BOM with manufacturer part numbers, the pick-and-place file, the order quantity, any test program or functional test requirements and the delivery schedule. Turnkey quotations are issued within 24 hours; process limits are on the capability page and the issued certificates on the certifications page.
