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Shenzhen Uniwell Circuits Co.,Ltd
Computer Application Circuit Board

Computer Application Circuit Board

Computer application circuit board 1.Company Information UNIWELL circuits cO., lTD. as a professional PCB service provider, focusing on high precision sandwich plate, special plate of research and development, proofing and small batch and PCB board production . UNIWELL circuits based in...

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Computer application circuit board  
1.Product description
 

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Specification:
Layer: 6  
Board Thickness:1.6 mm
Surface treatment:HASL.
Material: FR4 .
Min line width/line distance:4/4mil
Min hole:0.20mm

2.Company information
Uniwell circuits cO., lTD. as a professional PCB service provider, focusing on high precision sandwich plate, special plate of research and development, proofing and small batch and PCB board production . Uniwell circuits based in Shenzhen, China, and it also has another wholly owned subsidiaries in Jiangemn (Jiangmen Uniwell circuits co., ltd.), and set up branches in many cities.

Uniwell circuits has passed the ISO9001 management system certification, products have passed UL, SGS and RoHS certification. Uniwell circuits has a professional technical development team, and master advanced technology, the industry has a reliable production equipment, testing equipment and complete functions of physical and chemical laboratory. PCB products include 2 to 28 layer board, HDI board, high TG thick copper board, high frequency board, mixed media, soft hard couple, laminate, blind hole buried plate, sheet metal substrate and halogen free. PCB products are widely used in communications equipment, computer, industrial control, power electronics, medical equipment, security electronics, consumer electronics, automotive electronics and other high-tech fields. PCB products are exported to North America, South America, Europe, southeast Asia and other countries and regions. 

UNIWELL circuits as the PCB supplier of leading to the "quality, delivery accurate, good price" for the characteristics, adhering to the "adhere to the customer-oriented, the pursuit of excellence quality" core values, for the domestic and foreign customers to provide high-quality, fast and satisfactory service. Looking forward to the future, our broad prospects. Our sincere dedication, pragmatic and enterprising; We seize the opportunities, meet the challenges; Achieve win-win development, together with you to create a better tomorrow.

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3.What Can We Do
Rigid PCB
Single-sided, double-sided & multi-layer PCB (up to 30 layers) HDI,High TG Multilayer,HeavyCopper,Gold Finger,Blind Buried Holes PCB,Impedance PCB and other special process.
Flexible & Rigid-flex PCB
Flexible PCB (up to 10 layers) & Rigid-flex PCB (up to 8 layers) 

Metal Core PCB
Single/Double-Sided Aluminium Base PCB and Copper Base PCB 

PCB Material
CEM-1,CEM-3,FR-4,High TG,Polyimide, Aluminum and Copper-based material.
PCB Surface Technics
HAL, HAL lead free, Immersion Gold/ Silver/Tin, Hard Gold, OSP

4.Do you know about the immersion Sn/Tin

Immersion Sn - Immersion Tin
Typical thickness ≥ 1.0µm. Shelf life: 6 months

advantages

Immersion finish = excellent flatness
Good for fine pitch / BGA / smaller components
Mid range cost for lead free finish
Press fit suitable finish
Good solderability

disadvantages

Very sensitive to handling - gloves must be used
Tin whisker concerns
Aggressive to soldermask - soldermask dam shall be ≥ 5 mil
Baking prior to use can have a negative effect
Not recommended to use peelable masks
Should not plug holes on one side only

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