Shenzhen Greattong Electronic Co., Ltd. was set up in 1998 which is a professional and high speed enterprise in making, designing, re-designing single layer board, double layers board, 4 layers board to 24 layers board etc. exact PCB, making BOM, IC deciphering serial services.

Capability:

Standard materials: FR-4,CEM-3,94HB,94VO

2-24 layers PCB prototypes and batch production

Minimum aperture: 0.3mm

Minimum linewidth / linespacing: 0.1/0.1mm

Maximum PCB size: 550*600mm

Finish PCB thickness: 0.25-3.0mm

Minimum inner thickness: 0.15mm

Surface coating: Tin spray, the nickel, andi-oxidation treatment

Golden finger electroplating: thickness requested by the customers

Minimum boning pad dia.: 20mil （0.5mm）

Coating thickness

Copper plating thickness: Min. 0.5mil, 0.8mil, 1mil(0.013,0.02,0.025mm)

Nickel plating thickness: 50 to 200 u"(0.00127~0.0051mm)

Golden plating thickness: 10 to 50 u"(0.00025~0.00127mm)

Chemical nickel thickness:50 to 120 u"(0.00127~0.003mm)