Grandtop Business Lines 1) PCB Assembly 2) Printed circuit, 3) printed circuit boards, 4) pcb printed circuit board 5) PCB Design Why US? High End, Quick Turn PCBs & Assembly Prompt & professional Service Fast delivery OEM & LOW-VOLUME ORDER ACCEPTABLE Quality assured Strong ability Grandtop PCB Capabilities: 1) Layers: 2-18 layers 2) Max. Board Size:460*400MM 3) Min. Board Thickness: 2-layer 0.15mm 4-layer 0.38 mm 6-layer 0.55 mm 8-layer 0.8mm 10-layer 1.0mm 4) Min. Line Width/Space: 0.075mm (3.mil) 5) Max. Copper thickness: 6OZ 6) Min. S/M Pitch: 0.075(3mil) 7) Min. Hole size: 0.1mm (4mil) 8) Hole dia. Tolerance (PTH): -+0.05mm (2mil) 9) Hole dia. Tolerance (NPTH): +0/-0.05mm (2minl) 10) Hole position deviation: -+ 0.05mm (0.2mil) 11) Outline tolerance: -+0.10mm (4mil) 12) Twist & Bent: 0.75% 13) Electric strength :> 1.3kv/mm 14) S/M abrasion:.6H 15) Test Voltage: 50-300v 16) Min blind/buried via:0.15mm (6mil) 17) Surface Finished: HAL, ENIG, ImAg, Imsn OSP, Plating AG, Plating gold 18) Materials: FR4, H-TG, Teflon, ROGERS, Ceramics, Aluminum, Copper Grandtop Group was established in 2005, takes over an area of 4000 square meters, its sub-company Shenzhen Grandtop Automation Co., ltd is a manufacture specialized in PCB Assembly, SMT and DIP processing. It is well-equipped in both production and inspection. Our products are widely used in industrial equipments, communication apparatus, automobile electronics, computers, medical devices and network devices
