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Advanced PCB for Telecommunications

Advanced PCB for Telecommunications

Advanced PCB for Telecommunications 1.Product Description Specification: PCB clarification: Advanced PCB for Telecommunications layer:4 board thickness:1.0mm material:FR4 min hole:0.25mm finished treatment:ENIG application:Telecom key point:blind buried vias PCBs are a very important for the...

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Advanced PCB for Telecommunications
1.Product description

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Specification:
Layer:4
Board thickness:1.6mm  
Material:FR4
Min hole:0.25mm
Finished treatment:ENIG
Application:Telecom
Key point:blind buried vias

PCBs are a very important for the telecommunications industry. One popular use of telecom PCBs is for office communication. You'll find PCBs in phone switching systems, video collaboration, PBX systems and Voice over Internet Protocol, or VoIP devices. Communications PCBs are also used in general telecommunications systems like cell towers, satellites, high-speed routers and servers and commercial phone technology. Telecommunications PCBs are also often used to control LED displays and indicators. Uniwell Circuits Co., Ltd, was founded in Shenzhen, China in 2007. Uniwell Circuits is a high-tech enterprise which is approved for ISO9001, ISO14001, TS16949, UL. We are expecting to be your honest partner in China.

2.Company information
Uniwell Circuits Co., Ltd, was established in Shenzhen, China in April, 2007. Uniwell Circuits is a high-tech enterprise specializing in design, development, manufacture and sales of high precision double-sided & multilayer PCBs (Printed Circuit Board) focusing on quick turn, prototype, medium and large volumes.We have 2 production plants,that can meet your all commands. 

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With rich experience and skilled maturely management, high quality products, proprietary production techniques and professional service, Uniwell Circuits has won high reputation from customers throughout the world, such as Mainland China, Taiwan, USA, Japan, Russia, Germany, Switzerland, Sweden, UK, Finland, France, Holland, Italy, Poland, Denmark, Australia, Brazil, Singapore, Thailand, and Malaysia.

3.Why choose us:
With 10 years high speed development,we offer competitive price,reliable products and 24 hours service, let us be your partner ,we won’t let your down.

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4.PCB flow chart
We provide a full range of testing services: AOI,  Function Testing, In Circuit Testing, X-Ray for BGA

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2)Shipping
If the board is urgent,We often ship the sample by DHL, FedEx or UPS etc.. .If it is not so urgent, we can send by shipment forwarder, it maybe take much time before you receive the goods, but can save you some money.  

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5.Do you know what is Leaded Solder
Q:What is it?
Leaded Solder is the most common finish type.  It is a mix of tin and lead that is applied to the board.  The mix is approximately a 63/37 mix of tin/lead.  Sometimes referred to as a 60/40 split. Can be referred to as SN67 or SN66
The temp at which it flows (is liquid) is 485 degrees.
It is a shiny silver colored finish. 

Q:Why is it used?
It is used as a default process.  It is ideal for boards with thru-hole technology.  The surface finish is not very flat for SMDs or BGAs. 

Q:What is the process to apply the finish?
The typical process is HAL (Hot Air Leveler).  The boards are dipped into a tank of molten solder and then air knives blow off the excess solder.  It is applied after the soldermask has been applied.

Q:What are the critical measurements?
Typically the thickness of the Leaded Solder is note measured, although that question does come up at times. The IPC standard is visual coverage of the copper.
The cost is also very low compared to other types of finishes.

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