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Shenzhen Uniwell Circuits Co.,Ltd
Cell Phone Flexible PCB

Cell Phone Flexible PCB

Cell phone Flexible PCB 1.product describe Specification Layer: 2 Base Material: Polyimide Copper Thickness: 1oz Board Thickness: 0.25mm Solder Mask Color: Yellow cover film Silkscreen Color: White Surface treatment: ENIG 100% E-Test: 100% E-Test Standard: IPC-Class2/Class 3 Application: Cell...

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Cell phone Flexible PCB
1.Product describe

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Specification
Layer: 2
Base Material: Polyimide
Copper Thickness: 1oz
Board Thickness: 0.25mm
Solder Mask Color: Yellow cover film
Silkscreen Color: White
Surface treatment: ENIG
100% E-Test: 100% E-Test
Standard: IPC-Class2/Class 3
Application: Cell phone

Uniwell Circuits Co., Ltd, was established in Shenzhen, China in April, 2007. . At beginning we were only special in manufacturing Printed Circuit Boards. But now we has become a rapidly growing worldwide provider of solutions in three principal areas Printed Circuit Boards, PCB Assembly and Components Procurement. We are dedicated to building solid partnerships and providing flexible solutions to enable our customer's success.
We focus on R&D, producing and promotion, we provide samples and mass production, rapid delivery and best services to customers worldwide. Currently, our products have been sold in USA, Germany,UK,France,Japan and other countries.

2.Company information
Uniwell provides stable and reliable PCB manufacturing solution to over 1,000 customers from all over the world. Our  products range from 1 to 32 layers, We are your expert of PCB fabrication and providing advanced PCB technology products as below:
• Super long PCB
• Higher layer count PCBs
• Rigid-Flex PCB
• HDI PCBs
• Heavy copper
• High-frequency PCB

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3.Quality service
Uniwell’s efficient and professional marketing and customer service teams provide a full range of quality services , We fully take  customer’s different needs into account
• Quick response to any E-mail from customers
• Feedback quotation within two hours
• Ensure timely and accurate delivery
• Quickturn  prototype services: 24hours & 48hours
• Medium & Mass Production

4.Testing service
We employ appropriate testing methods to make sure that everything is properly assembled according to your plans, and we inspect the finished product.

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5.FAQ
Q:What is copper wrap?
Copper wrap is a continuous deposit of plated copper that is deposited within the barrel of the hole and extends onto the surface of the PCB (or the surface of the innerlayer core if part of a HDI structure) by a minimum of 25 um.

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For class 2 demands the thickness of the surface deposit of the copper wrap is minimum 5um, but for class 3 demands this will vary dependant upon where this feature is situated within the build. Please consult our technicians for further information on class 3 demands.

Q:What type of via hole plugging is recommended?
The preferred type of plugging for standard product (not including capped via hole) is IPC 4761 type VI filled and covered, with target being complete fill. The image below shows type VI with liquid soldermask coverage.

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Single sided plugging is not recommended (including type II tented and covered) due to concerns over entrapment of chemistry or likelihood of solderballs being present with HASL finishes (LF and SnPb).

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