Shenzhen Hongyuan circuit board manufacturers. Mainly produces single-sided, multi-layered; Immersion Gold, HAL; ordinary photographic plate, a monthly production of 20,000 square meters. 
 Our independent design, copy board capabilities, strong technical force. With rich experience in production, imports of advanced equipment, perfect management solution for the user to select. 
 The company has passed the U.S. UL certification is the full implementation of ISO9001: 2000 management system. 
 The company has a complete high-precision imported equipment, high quality imported sheet (UL approved) is mainly used FR4 (glass fiber, 0.4mm-3.5mm). 
 To meet the different requirements of customers to high quality, high efficiency, minimum line spacing 4mil minimum line width of up to 5mil, the minimum hole 12mil. 
 The company's commitment: to meet customer demand. 
 The company aims: adherence to credibility, not seeking to floating interest excellence and stable development. 
 The company's goal: to establish a good corporate image in the industry. Make your business even more luster. 
 The products include series: 
 Multilayer (a) (4 to 8 layers) 
 Minimum four-layer board thickness: 0.6 mm (24mil) 
 Six panels minimum thickness: 1.00 mm (39mil) 
 Eight plate minimum thickness: 1.20 mm (47mil) 
 (2) single-, double-sided 
 Plate: FR-4 
 Thickness: 0.2 mm (8mil) to 3.5 mm (138mil) 
 Copper thickness: 1/4OZ (9um), 1/2OZ (18um), 1OZ (35um), 2OZ (70um), 3OZ (105um) 
 (3) for the entire board gold-plated board 
 Nickel layer thickness: ≥ 2.5um 
 Gold layer thickness :0.05-0 .1 um or customer requirements 
 (4) surface mount board (COB board CSP board, BGA board) 
 HASL tin layer thickness: ≥ 2.5um, 5um surface anti-oxidation treatment 
 (5) high-precision ultra-fine wire board 
 Minimum line width: 0.10 mm (4mil) 
 Minimum line gap: 0.08 mm (3mil) 
 Minimum aperture: 020 mm (8mil) 
 Plated through aperture tolerance: ± 0.076 mm (3mil) 
 Non-plated through-aperture tolerances: ± 0.05 mm (2mil) 
 Hole position accuracy: ± 0.05 mm (2mil) 
 PTH-depth ratio: 6:1 
 (6) gold-plated plug board, button plated with hard gold plate 
 (7) carbon the KEY plate, carbon (silver) concrete slab 
 (8) The largest processing size 
 Single, double panel: 530 mm × 630 mm (21 "x 25") 
 Multilayer: 500 mm × 600 mm (20 "x 24") 
 (9) Solder Mask 
 Type: liquid photo solder thermosetting solder mask, UV curable solder mask 
 Color: any color 
 (10) Electrical test 
 Test voltage: 50V-300V 
 Conduction :5-1000ohms The 
 (11) CNC gong board, 
 Line to the edge of the minimum distance: 0.15 mm 
 Hole to the edge of the minimum distance: 0.2 mm 
 Minimum shape tolerances: ± 0.15 mm 
 (12) Goldfinger chamfer 
 Angle: 30 degrees, 45 degrees, 60 degrees 
 Depth of 1-3mm 
 (13) the V-CUT 
 Angle: 30 degrees, 35 degrees, 45 degrees 
 Minimum size: 80 mm × 80 mm 
 The contacts Mr.Tang 18,719,452,376 QQ: 459 207 873 MSN: wenronggang@live.cn 
 Company Website http://www.dfpcb.com E-mail: tchpcd@163.com