Lead time, ordering, shipping and payment.
Five to six working days from drawing approval to dispatch from Shenzhen. International express usually adds 3–5 days to the UK and Europe.
No fixed minimum. We regularly make a handful of parts for research projects, and scale to production volumes when your design is ready.
DXF/DWG (one layer per copper side) or Gerber, plus a PDF with ceramic type, copper thickness, finish and quantity. See the design guide for details.
Yes. Every drawing gets a free DFM review covering gaps, edge margins, etch tolerances and copper balance. We reply with comments before we quote.
Al₂O₃ DBC for cost-sensitive silicon designs, AlN for the highest thermal conductivity, and Si₃N₄ AMB for SiC modules and anything that sees heavy thermal cycling. If unsure, tell us your power level and we will recommend one.
Yes, regularly. We can ship DDP (duties paid) so the parcel arrives without customs charges, and we work with university purchase orders.
Bank transfer against a proforma or commercial invoice. Universities can send a purchase order and we invoice against it. Customers in China can pay by personal or company bank transfer.
Bare copper, anti-oxidation, electroless nickel, ENIG and electroless silver. Silver is preferred for Ag sintering; ENIG for long storage and fine soldering.
Each shipment includes a dimensional report and certificate of conformity. Ultrasonic scans and reliability data are available on request.
Yes. Send us your NDA, or ask for ours. Drawings are used only for quoting and producing your parts.
Send us your drawing. Gerber, DXF or PDF with quantity, and we reply within one working day.