Specification :

Name: Shenzhen Welsun Electronic Co., Ltd
Add: C3, The 2nd nuclear power industry Zone, Guanlan town, Bao' An
District, Shenzhen, China
Tel: 0755-29703459
Fax: 0755-29703459
Emai l: harrystone.pcb@ gmail.com
Skype: sinbangpcb
MSN: sinbanpcb@ msn.cn
Detailed Product Description
1) PCB
2) printed circuit board,
3) High quality, ROHS
4) HAL lead free board
1) PCB

2) printed circuit board,
3) High quality, ROHS
4) HAL lead free board

Base material: FR-4, FR-1.CEM1.CEM3, Aluminum Core board
Surface processing type: HASL/ plating gold / immersion gold/ Ni/ Au
plating gold finger/ OSP processing/ immersion Tin ( Sn)

Layers: single-sided, double-sided , Multilayer board

Min trace width/ space: 4mil/ 4mil

Min drill diameter: 0.2mm

Max board size: 560mmX720mm

Molding board thickness: 0.6-3.00mm

Solder mask type: Green/ yellow/ black/ red/ white/ blue or transparent
photosensitive solder mask and peel off blue glue.

Silk legend color: White/ yellow / black

Electricity performance testing: 100% electrical performance
testing, high pressure testing

Various types base material to PCB processing: High TG board, high
frequency board( ROGERS, TEFLON) halogen-free board ( FR-4, CEM-1, CEM-3)

Other testing request: Impendence testing: Hole resistance testing,
gold slice up, Solder ability

1) Electronic PCB board
2) PCB, printed circuit board,
3) High quality, ROHS
4) Green solder mask

We offer as following
Layer: 1-22 Layers rigid PCB
Base Material: FR-1, FR-2, CEM-1, CEM-3, FR-4, Aluminium base
Board Thickness: 0.2/ 0.4/ 0.6/ 0.8/ 1.0/ 1.2/ 1.6/ 2.0/ 2.5/ 3.2/ , 6.0 mm
Copper Thickness: 0.5/ 1/ 2/ 3 OZ
Supplier: Nanya/ KB/ Shengyi
Surface Finish: HAL, HAL lead free, OSP( Entek) , Immersio Nickel Gold,
Immersio Tin/ Silver, Flash gold over nickel,
Carbon Ink, Abailable Peelable Mask available
Solder mask: Liquid Photo Imageable Soldermask( LPI)
Color: Green/ Blue/ Red/ Yellow/ Black/ white