Teson tech is a professional pcb & pcba factory located in shenzhen china. We offer from 2-18 layers volume production and 2-24 layers prototype. We could offer you many kinds of special high technology of multi-layers circuits such as backplane pcb, metal base pcb, hi-tg heavy copper foil pcb, flat winding pcb, high frequency pcb, mixed dielectric base pcb, flex and flex-rigid pcb. Testing procedures for quality warranty: We perform multiple quality assuring procedures before shipping our products to customers. - 100% visual inspection - metal thickness test - copper thickness test - via hole test - 100% flying probe - 100% e test fixture - impedance control test - solder ability detection - digital metallogenic microscope - 100% aoi (automated optical inspection) Quotation requirement: -gerber file would be the best to get an accurate quotation. If no, following specifications are needed for pcb quotation. 1. Quantity 2. Base material 3. Layer count 4. Board thickness 5. Copper thickness 6. Surface treatment 7. Color of solder mask 8 other special requirements Pcb assembly files requests: 1. Gerber files of the bare pcb 2. Bom (bill of material) for assembly To shorten the lead time, please kindly advise us if there is any acceptable components substitution. 3. Testing guide & test fixtures if necessary 4. Programming files & programming tool if necessary 5. Schematic if necessary Teson tech has being done strongly to meet special needs of customer. We will do our best to give you our professional engineering supports, professional quality control in manufacturing and competitive prices. We hope that we could have a chance to have good and long term business with you! Vacuum package