The USA carmaker's visited----Wonderful PCB

Wonderful PCB with automated production and data networks -this is our forte. Specimen printed circuit board and mini-series in express service. Our overseas marketing office is located in Hong Kong mainly for overseas communications/contacts, engineering works handing orders and goods delivery/exports. Our company products widely used in communication medical, industrial control household appliances, etc; the products are mainly exported to Europe and America. Southeast Asia and Asia.

The USA carmaker is the first time visit Shenzhen, and the first step visit to Wonderful PCB. For auto parts, the requirement is very strict. Before that their company had made to review for Wonderful PCB manufacturer quality and production capacity. We can make more Car PCB with light PCB and Door PCB.

Information contained in this catalogue is believed to be accurate and is offered in good faith for the benefit of the consumer but is not binding and is provided without making any representation or warranty, expressed or implied, and without any liability.

In as much as Wonderful PCB has no control over the use to which others may put the material, each user of the material is not released of making his own tests to determine the material’s suitability for his own particular use. Statements concerning possible or suggested uses of the materials described herein are not be construed as constituting a license under any Wonderful PCB patent application covering such use or as recommendations for use of such materials in the infringement of any patent.

Lamination assist had Kraft press pad, silicon rubber press pad, Teflon release film, pressure revealing films. With the description of provide uniform cushioning and precise control over heat rise and long life (up to 150 uses) and faster lay-up. Put talcum powder before use.
Our pressure revealing film is a unique analytical tool. Provides a quick, easy and accurate in-house procedure for checking for “high” and “low” pressure zones due to press platen misalignments or the design configuration (pads, high density circuitry, ground planes, etc.) of the circuit board itself.

We are professional manufacturer of high quality with Aluminum pcb & PCBA with competitive price and attractive lead time.
Wonderful PCB in our job engineering and production planning! Films, data carriers or remote data transfer -we can adjust flexibly to all your needs. Rapid, rational processing of your orders. This reduces delivery times so that you can have your printed circuit boards at an earlier date

Ms. Jodie Zhou
Wonderful PCB
T +86-755-86229518-807 | F  +86 755 2607 3529|  e  wonderful09@wonderfulpcb.com |
www.wonderfulpcb.com | Skype: wonderful-02   | MSN: wonderfulpcb06@hotmail.com
Welcome to our trading shows:
1. Booth:  L32, Expo Electronics 2013, Apr.10-12th in CROCUS EXPO, Moscow, Russia
2. Booth: 11J36, HK Global sources Apr.12-15th, 2013 Asia World-Expo, and Hong Kong 
3. Booth: 9J35, HK Global sources Oct.12-15th, 2013 Asia World-Expo, Hong Kong

PCB Board and Its Advantages to the Industrial Setups 2----Wonderful PCB(hk)Limited

For the traces in the PCBs, copper is used as the most used material. Mechanics use several distinct methods to plating the entire board with copper. They then follow etching away process to uncover the traces from unwanted areas.

Engineers use more complex and critical methods to allow traces to be installed on to a bare Aluminum pcb board. During the fabrication process, some PCBs require the use of gold. This component is used for more sensitive, low-voltage applications or lead-free compliances. Use of nickel can be a huge loss to impedance in compare to a gold element.

If you are also interested to design and develop PCB boards you should spend a considerable amount of time to understanding the basics and advance logics of the prevailing   PCB designs in the electronics industry. You can take the advantage of a number of guide books and tutorials available in the market place.

If need any more information on PCB, you could check and source from this website: http://www.wonderfulpcb.com Wonderful PCB Technology Co., Ltd is a professional PCB manufacturer for many years and could try best to help!
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Ms. Jodie Zhou
Wonderful PCB
T +86-755-86229518-807 | F  +86 755 2607 3529|  e  wonderful09@wonderfulpcb.com |
www.wonderfulpcb.com | Skype: wonderful-02   | MSN: wonderfulpcb06@hotmail.com
Welcome to our trading shows:
1. Booth:  L32, Expo Electronics 2013, Apr.10-12th in CROCUS EXPO, Moscow, Russia
2. Booth: 11J36, HK Global sources Apr.12-15th, 2013 Asia World-Expo, and Hong Kong 
3. Booth: 9J35, HK Global sources Oct.12-15th, 2013 Asia World-Expo, Hong Kong

Impedance Control on PCB

1.Introduction
The development of wireless communications requires more compact electronic devices. Further, the more precise for electric products, the more special technology is needed for their main board. A PCB (printed circuit board) planar inductor is one that is printed directly on the PCB board with a copper track employed as the turn of the windings, thereby the conventional inductor flat. Efforts have been made on its design and calculation as well as its applications. The frequency dependence of a PCB inductor must be considered at higher frequencies. The effective trace resistance of a multi-turn spiral inductor operating at high frequencies is known to increase dramatically above its DC value, due to proximity effect or current crowding.

2.Why need to control impedance?
We need controlled impedances because the function of a wire or trace is to transfer signal power. Maximum signal power is achieved with matching impedances. The same considerations apply to signal transfer through traces on a PCB. When board traces carry high frequency signals, care must be taken to design traces matching the impedance of the driver and receiver devices. The longer the trace or the higher the frequencies, the higher is the need to control the trace impedance.
PCB manufacturers control impedance by varying the dimensions and spacing of the trace or laminate. We at Wonderful PCB Technology Co., Ltd experience an increase in demands for multi layers with controlled impedance. An estimated 75% of the multi layer PCB’s with eight layers or more are designed with controlled impedance.

3.Controlled impedances on PCBA manufacturer traces.
Any impedance mismatch can be extremely difficult to analyze once a PCB is loaded with components. Components have a range of tolerances, so that one bath of components may tolerate an impedance mismatch, while another batch might not. Moreover, a component’s characteristics may come and go. Thus, if changing a component appears to cure a problem, the components may become the suspects instead of the trace. Component selection becomes the solution, and build costs are driven up, while all the time the real fault- race impedance mismatch-goes undetected!
For these reasons, a PCB designer will specify trace impedance and tolerance, and should work with the PCB manufacturer to ensure that the PCB meets the specifications.

4.The future of PCB impedance control.
In near future virtually all PCB’s will likely include at least some impedance requirements. As the operating speed of electronic circuits has increased, so has the need for PCBs to have controlled impedances and the majority of PCB manufacturers are producing them.

Wonderful Printed Flexible Circuit Board

Single-sided Flexible pcb is the lowest cost, less demanding on the electrical properties when the PCB. In the single-sided wiring, single-sided flexible board should be selected. Chemical etching of the layer which has a conductive pattern, the surface of the flexible insulating substrate a conductive pattern layer is rolled copper foil. An insulating base material may be polyimide, polyethylene terephthalate, polyvinyl acetate and aramid fiber.
   
Double-sided flexible board is on both sides of the insulating base film made ​​of each conductive pattern layer etching. Plated hole pattern on both sides of the insulating material to form a conductive path, to meet the deflection of the design and functionality. The cover film can protect the single, double wire and indicating element sited.
      
Multi-layer flexible plate is 3 or more layers on one side or double-sided flexible circuits laminated together through the drill larvae L, metal plating is formed holes in the conductive path is formed between the different layers. Thus, without the use of complex welding process. The multilayer circuit at a higher reliability, better thermal conductivity and more convenient assembly performance has great functional differences. In designing the layout, you should take into account the assembly dimensions, layers and flexible interaction.

Flex-rigid board is made of a rigid and flexible substrates are laminated together to form selectively. Compact structure, in order to form a conductive metal larvae L connection. If a PCB positive and negative both components, rigid flexible board is a good choice. However, if all of the components are on the side of the case, use double-sided flexible board and laminated on the back layer of reinforced FR4 material, will be more economical.
Sophie Deng
_______________________________________
Wonderful PCB Limited
NO.32A,Building NO.1, XianDaiC hengHuaTing,ChuangYeRoad|NanShan District,ShenZhen City 518054|  China  T +86-755-86229518-806 | F  +86 755 2607 3529|  e  wonderful08@wonderfulpcb.com |
w  www.wonderfulpcb.com  | Skype:wonderful-07   |                                                   
Welcome to our trading shows:
1.Booth: L32,Expo Electronic 2013,Apr.10-12th in CROCUS EXPO,Moscow,Russia
2.Booth: 11J36, HK Global sources  Apr.12-15th, 2013 Asia World-Expo, Hong Kong
3.Booth: 9J35, HK Global sources Oct.12-15th,2013 Asia World-Expo, Hong Kong
4.Booth: 70206, CES  2014  Jan,8th-11th in Las Vegas, USA