How to follow a new customer

Click for more six-layer PCB

For many new sales, they find that it is hard to start a new business with a new customer. They always make things worse when make a quote , or make a negotiation to their customer. So today we are going to talk about this.

Generally speaking, one would begin to send developing e-mail to customer. Time by time, some customers would give you some feedback. They would ask for an inquiry from you. For example, you are selling PCB and PCBA. They would send to the gerber files and bom list to quote. If you can insist to this step. You have got the key to the success. What you need to do is evaluating the files and make a reasonable price for your customers. But most of the time , when you send the quotation and then you get nothing from you customers. This bothers many of the sales. When this happens one and another. It would beat down the sales sometimes and make them begin to be passive and don’t know how to follow a new customer, even someone begins to lose confidence on himself.

So we need to do something to change this situation. Firstly, as a sale, you should keep a active attitude all the time. You send 1000 e-mail one day and get one feedback, even nothing back. You may tell to yourself that it is normal. Maybe the customers have too many e-mail to deal with and don’t note your e-mail. Maybe your e-mail can’t get to your customers’ server. These things happen everyday in every moment. So you need to try to write a good title of the developing e-mail to attract customers’ eyes. And keep send e-mails everyday. Secondly, when you make a quote to customers, you should evaluate this customer at first before you make a quote. You should know where is the customer and why he needs your PCB and PCBA. And then you make a reasonable for your customers. You know in Europe and American countries, you may make a higher quote ,but in Africa and India， you can’t do like that. So evaluating your customers should comes first. Thirdly, you should keep frequently sending your e-mails or make a phone call to your customers. Choose the working time to send or call and don’t make a disturbing to clients. Be polite and easy going to your customers in call to make a good impress. Last one rule, don’t be rude even if you cann’t make a agreement with your customers. Just keep in good contacting with your customers and maybe he would give you order in the next time.

Finally, the most important one, you should keep on doing the above four rules and i believe that one day you would success.

How to design a PCB( Printed Circuit Board ) ?

WDF-FPC-M-37,4 layer,wonderfulpcb.com

Initially PCBs were designed manually by creating a photomask on a clear mylar sheet, usually at two or four times the true size. Starting from the schematic diagram the component pin pads were laid out on the mylar and then traces were routed to connect the pads. Rub-on dry transfers of common component footprints increased efficiency. Traces were made with self-adhesive tape. Pre-printed non-reproducing grids on the mylar assisted in layout. To fabricate the board, the finished photomask was photolithographically reproduced onto a photoresist coated on the blank copper-clad boards.

Nowadays PCBs are designed with dedicated layout software, generally in the following steps:

1.Schematic capture through an electronic design automation (EDA) tool.

2.Card dimensions and template are decided based on required circuitry and case of the PCB.

3.The positions of the components and heat sinks are determined.

4.Layer stack of the PCB is decided, with one to tens of layers depending on complexity. Ground and power planes are decided. A power plane is the counterpart to a ground plane and behaves as an AC signal ground while providing DC power to the circuits mounted on the PCB. Signal interconnections are traced on signal planes. Signal planes can be on the outer as well as inner layers. For optimal EMI performance high frequency signals are routed in internal layers between power or ground planes.

5.Line impedance is determined using dielectric layer thickness, routing copper thickness and trace-width. Trace separation is also taken into account in case of differential signals. Microstrip, stripline or dual stripline can be used to route signals.

6.Components are placed. Thermal considerations and geometry are taken into account. Vias and lands are marked.

7.Signal traces are routed. Electronic design automation tools usually create clearances and connections in power and ground planes automatically.

8.Gerber files are generated for manufacturing.

For further detailes, please contact wonderful09@wonderfulpcb.com.

How to customize a PCB ?

As a customer of PCB industry, you may often ask: How can I customize a PCB board? Why can’t the PCB manufacturer ( or PCBA manufacturer ) follow my requirements?

Actually, you should ask yourself first: Have I got a design document?

Well, to customize a PCB board, you need to offer a design document first which is called a “Gerber file”, it is used to describe your requirements for the PCB board you’d like to customize.

What will be contained in a Gerber file?

① Layer count
② Delivery size
③ Surface finished (such as: HASL, ENIG)
④ Material (such as: FR1, FR4,FR2, CEM-1)
⑤ Board thickness
⑥ Copper thickness
⑦ Solder mask

Items above, they make it each other possible. Otherwise, it may cost engineering problems.

Is it absolutely necessary to have a Gerber file?

Fortunately, it is not if you happened to have a sample PCB board and want a large number of that. You simply send the sample PCB board to the PCB manufacturer works for you, and then all you need to do is enjoying a short wait until the PCB manufacturer send back a host of PCBs, each one of which is the same as the one you send to them.

For PCBA, a BOM list ( BOM-Bill of material ) is necessary during customization.

Pay attention that you should make sure the list providing as many details as possible about the used materials. Otherwise, it may cost engineering problems.

In conclusion, if you want to customize a PCB board or get some PCBA services, you need to find a high quality, experienced PCB manufacturer or PCBA manufacturer and offer your Gerber file, sample PCB board, or BOM list as your requirements.

WONDERFULPCB.COM

Flex circuits

Flex circuits are often used as connectors in various applications where flexibility, space savings, or production constraints limit the serviceability of rigid circuit boards or hand wiring. A common application of flex circuits is in computer keyboards; most keyboards use flex circuits for the switch matrix.
In LCD fabrication, glass is used as a substrate. If thin flexible plastic or metal foil is used as the substrate instead, the entire system can be flexible, as the film deposited on top of the substrate is usually very thin, on the order of a few micrometres.
Organic light-emitting diodes (OLEDs) are normally used instead of a back-light for flexible displays, making a flexible organic light-emitting diode display.
Most flexible circuits are passive wiring structures that are used to interconnect electronic components such as integrated circuits, resistor, capacitors and the like, however some are used only for making interconnections between other electronic assemblies either directly or by means of connectors.
In the automotive field, flexible circuits are used in instrument panels, under-hood controls, circuits to be concealed within the headliner of the cabin, and in ABS systems. In computer peripherals flexible circuits are used on the moving print head of printers, and to connect signals to the moving arm carrying the read/write heads of disk drives. Consumer electronics devices make use of flexible circuits in cameras, personal entertainment devices, calculators, or exercise monitors.
Flexible circuits are found in industrial and medical devices where many interconnections are required in a compact package. Cellular telephones are another widespread example of flexible circuits.
Flexible solar cells have been developed for powering satellites. These cells are lightweight, can be rolled up for launch, and are easily deployable, making them a good match for the application. They can also be sewn into backpacks or outerwear.

If you need expert flexible PCB service, please contact wonderful02@wonderfulpcb.com.

Global And China FPCB Industry Report, 2014

In 2013, FPCB industry enjoyed a high-speed growth with the market size approximating USD12.03 billion, up 16.2% from the level in 2012. The South Korean vendors developed rapidly and were excessively upbeat about the industry’s outlook, aggressively expanding capacity starting from the very beginning of 2012. As a result, most of new capacity was available in Q2 2013. However, the FPCB companies in South Korea without diversified customers, were heavily dependent on the key accounts such as Samsung and LG, thus making them less competitive during negotiations. Therefore, these vendors cut the prices steeply in Q4 2013, sending them into price war.

In 2014, price decline continued to deteriorate, which led to a sharp fall in revenue of South Korean vendors. The implications of high-speed capacity expansion are high fixed costs, which would thus result in a plunge in profit margin. It is projected that the revenue of INTERFLEX, a leading South Korean FPCB company, would tumble by 50%, and its operating margin would record a 27% loss in 2014 in contrast to no-profit-no-loss in 2013. Additionally, affected by the order shift of Apple, the company has hardly received any orders from Apple in 2014.

Another pressure for the vendors in South Korea came from the depreciated yen, and the won appreciated against the yen. However, the Japanese products have better performance; coupled with the reduced prices bought on by yen depreciation, they are more competitive.

Apple shortened the supply chain, giving more of its orders to the vendors in Taiwan, which resulted in a fall in revenue of M-Flex, at an estimated 20% drop in 2014. And as the losses expand, M-Flex’s operating margin is expected to slip from -8.4% in 2013 to -11.8%.

Despite a substantial decline in revenue of the South Korean vendors, the biggest customer of FPCB market—Apple did not bring down the purchase price. Meanwhile, the new iPhones have bigger size and therefore need more FPCBs. Consequently, the vendors in Taiwan and Japan saw a big increase in revenue, thereby filling in the vacuum. We predict that in 2014 the market size of FPCB worldwide reached USD12.608 billion, up 4.8% from 2013.

Of the Taiwanese vendors, ZDT generated the most revenue. ZDT under Hon Hai obtained more of the orders from Apple. It is forecasted that its revenue will jump by 55% to USD1.518 billion in 2014, overtaking Japan’s SEI as the world's second. In contrast, the world’s first NOK reduced the capacity in Japan, instead expanded the capacity in Thailand and Mainland China, which helped not only substantially increase its revenue but also rapidly turn out of red. At the same time, the global HDD market tends to be stable, with the shipments rising mildly from 2013. The HDD for FPCB is the main product of NOK, an Apple's leading supplier.

We project that in 2015 smartphones will present a slowing growth, tablet PCs will begin to decline, notebook computers will grow slightly or be flat. Moreover, LCD-TVs are expected to grow by a small margin. And wearable devices are very likely to rise significantly, but its application of FPCB is too small to fuel the market. In 2015, it is more than likely that LCD-TV will be the mainstay to drive the market. And after 6-8 years of popularization, LCD-TV is expected to undergo a boom of TV set replacement. And consumers will choose 4K TV with higher resolution or change the original smaller 32-37 inch television to 40-42 inch television.

We expect that it will be very hard for the South Korean vendors to reverse the downtrend when Samsung’s mobile phone shipments slow down and its LCD shipments are falling with losses. It is more likely that the South Korean vendors will suffer collapse, while the companies from Japan and China’s Taiwan will benefit from it, especially Japanese ones that had improved the competitiveness after the repeated depreciation of yen.

If you are looking for Quick turn PCB,Rapid design board,please contact us:

Shenzhen Wonderful Technology Co.,Ltd

Website: http://www.wonderfulpcb.com/

PCB Assembly Introduction

There are two process for manufacturer to do PCB assembly.
Below picture show controle base plate(PCBA) exist everywhere in our house appliances. 
Process of PCB assembly fabrication
(1) . Traditional DIP process
(2) . SMT process

Here first is the introduction of the process of DIP today.
1 . Traditional DIP process to Flexible pcb assembly means inserting the parts which with leg into the PTH hole of PCB.
2 . And then pass the PCB through tin soldering machine, to reach the purpose of soldering tin.                               

The structure of tin soldering machine

The structure of flux tank


The function of foamed pipe in flux tank
1. To air through the tiny holes on the foam tube body, causing numerous of air bubbles, with the number of air bubbles to cleave with flux, by metal accumulation, contact from the bottom of the base board and achieve the function of the flux coating, and then extra flux be strike off by air knife, and make flux distributed uniformly at the bottom of the base plate.

Method of flux coating
1. Bubble type flux coating
2. Wave type flux coating
3. Spray type flux coating

Hello I also would like to make simple introduction on flux which is used for assembly

A. The function of Flux
1. Remove the oxide on the surface of part and substrate
2.Reduce the surface tension of the solder and promote the flow of the solder
3.To protect the surface of the metal, avoid it to be oxidized under the environment of high temperature.

B. The main ingredients of flux
1.Rosin: it is refined from the grease of pine tree.
2.surfactant : Because of the gentle characteristics of rosin, it is not easy to remove the oxide, thus must add surfactant in order to enhance its effect.
3. Solvent: Dissolve and blend solid state material like rosin and surfactant, general multi-purpose isopropyl alcohol or ethylene glycol.
4. In addition, there are interface active agent, foaming agent and other ingredients

C. Variety of flux.
(1) Rosin flux :
1. R grade : Inactive rosin flux
2 . RMA : Weak activity rosin flux
3 . RA : Strong activity of rosin flux
4 . RSA : Super Strong activity of rosin flux

(2) Synthesis of active flux : This kind of flux is developed by DUPONT company, it’s advantage is can make the residue which caused after soldering can become liquid state, easily for cleaning.
Based on activity, it can be divided into: 
SR–No active synthetic flux
SMAR – Weak active synthetic flux
SSAR – Strong active synthetic flux
SAR – Super strong active synthetic flux

(3). Water-soluble flux: The flux of organic acids, performs best help on welding, but must pay attention to the cleaning situation of the base board of welding after washing. If there’s residues, it will cause corrosion of substrate material, military and aerospace industry are banning the use of water-soluble flux process of substrate

(4). Disposable flux
Rosin kind improved flux: solid content 5-20%, residues will not cause corrosion to the base plate.

Low content of solid flux: solid content at 5%,  disposable flux disposable because its residue in the residues of substrate could not cause corrosion of substrate, but solid content in about 5% of

PCBs Fabrication of Exposure---WonderfulPCB(hk)Limited

The photo resist board needs to be exposed to ultra-violet light through the artwork, using a UV exposure box.

UV exposure units can easily be made using standard fluorescent lamp ballasts and UV tubes. For small PCBs, two or four 8 watt 12" tubes will be adequate, for larger (A3) units, four 15" 15 watt tubes are ideal. To determine the tube to glass spacing, place a sheet of tracing paper on the glass and adjust the distance to get the most even light level over the surface of the paper. Even illumination is a lot easier to obtain with 4-tube units. The UV tubes you need are those sold either as replacements for UV exposure units, insect killers or 'black light' tubes for disco lighting etc. They look white or occasionally black/blue when off, and light up with a light purple, which makes fluorescent paper etc. glow brightly. DO NOT use short-wave UV lamps like EPROM eraser tubes or germicidal lamps, which have clear glass - these emit short-wave UV which can cause eye and skin damage.
A timer which switches off the UV lamps automatically is essential, and should allow exposure times from 2 to 10 minutes in 15-30 second increments. It is useful if the timer has an audible indication when the timing period has completed. A timer from a scrap microwave oven would be ideal.

Short-term eye exposure to the correct type of UV lamp is not harmful, but can cause discomfort, especially with bigger units. Use glass sheet rather than plastic for the top of the UV unit, as it will flex less and be less prone to scratches.
If you do a lot of Multilayer pcb, it may be worth making a double-sided exposure unit, where the PCB can be sandwiched between two light sources to expose both sides simultaneously.

You will need to experiment to find the required exposure time for a particular UV unit and laminate type, expose a test piece in 30 second increments from 2 to 8 minutes, develop and use the time which gave the best image. Generally speaking, overexposure is better than underexposure.

For a single-sided PCB, place the artwork with toner side up on the UV box glass, peel off the protective film from the laminate and place it sensitive side down on top of the artwork. The laminate must be pressed firmly down to ensure good contact all over the artwork, and this can be done either by placing weights on the back of the laminate, or by fitting the UV box with a hinged lid lined with foam rubber, which can be used to clamp the PCB and artwork.

Ms. Jodie Zhou
Wonderful PCB
T +86-755-86229518-807 | F  +86 755 2607 3529|  e  wonderful09@wonderfulpcb.com |
www.wonderfulpcb.com | Skype: jodiezhou0710  | 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

Handheld PCB APP: China PCB enterprise transformation for the first time

Recently, handheld PCB APP successful online, industry insiders call is the first time China PCB enterprise transformation at mobile world. Here, near the palm circuit board APP together, find out the palm circuit board.

As a thought for individuals and businesses to provide convenient PCB industry information consulting service as the starting point of mobile applications, handheld PCB APP funnel circuit board manufacturing companies throughout the country and surrounding service related information, collection industry information, supply and demand of business opportunities, business yellow pages, map location, a key contact calls, and other functions in one body.

Handheld PCB APP team using the most advanced computer technology and mobile Internet platform, break the regional barriers, consulting PCB market barriers, trade barriers, to provide users with a cross-regional barrier-free service platform online trading market, implements the palm trading across the whole PCB market area.

Users only need to click browse the business of supply and demand and online mall two-step, cross-regional palm trading can be realized. Through the business opportunities section of supply and demand, handheld PCB APP integration provides the latest and most complete circuit board industry supply and demand information, including Flexible pcb circuit board processing manufacturing and maintenance services for online purchase order information. Handheld PCB open to all apple users APP business opportunities section of supply and demand, whether personal or corporate users, all can realize online release supply and demand information.

Through online mall, handheld PCB APP online trading services to provide users with a key, can not only satisfy all customers for PCB industry opportunities and expand the service demand, also provide a PCB related products quotation and product information Here, the user can realize the online contact, negotiate advisory transactions

Handheld PCB APP for its convenient pocket browsing, powerful mobile applications, and the professional authoritative information for handheld users provides a rich variety of circuit board industry practical information platform. Most importantly, handheld PCB APP using mobile Internet technology, to realize the whole PCB cross-regional palm trading market, for the whole PCB industry to expand the potential of mobile market development space. Have to admit, apple PCB APP as China PCB enterprise transformation work debut mobile Internet world is a gorgeous debut.

PCB, CCL application CQC authentication problem solving----Wonderful PCB (hk) Limited

1, why the CQC reference standard or s very long?
A: for CQC application standard, we search the IEC standard, is not the latest version of PCB in national standard is equal to the IEC standard, release s mostly in 1990 and 1991.
2, after the official launch of the new standards, CQC will update?
A: yes, according to the national standard committee of planning, will officially issued the new standard by the end of the year. At the appointed time, cQc will also be revised according to the new standard.
3, PCB in the process of application CQC, is there a required for base material certification?
Answer: in terms of certification: PCB when applying for CQC certification, the base material of the CQC certification or certification number must be provided. However, given the current China's actual operation situation, CQC for ccL data passing through the UL certification as a reference. Company at the time of applying for cQc, along with all the will of base material uL certification and cQc certification. If the base material didn't pass any certification, so, must be CQC certification or random test base material.
4, basic application CQC certification process?
Answer: (1) on the cQc website complete qualified application materials. Note: PCB product categories are: non-metallic materials and components performance logo certification (134 kinds) printed circuit board in small classes (134001);
(2) the CQC product certification engineer for data review, cell division, is expected to deliver and test quotation, order to notice;
(3) the enterprise according to the requirements of standard sample preparation and CQC authorization to the lab for testing; At the same time, please pay;
(4)Circuit boards test result after testing organizations will report to China quality certification center;

PCB Prototype Assembly Services

The evolution of our world's technology is truly astounding. In the past decades, we've made great leaps and bounds in terms of what our electronic devices are capable of accomplishing, and things are only getting better. Technological engineers and electronics designers are continuously dreaming up new ways to improve existing products, as well as completely original ideas for simplifying everyday life and tasks. But how does this process occur, exactly?

Every bit of technology - from the smallest, consumer electronic gadget to complex healthcare and aerospace units - begins with an idea. From here, plans can be made to develop a working prototype in order to test the capabilities of the device and to determine whether the idea is worth investing in, or how it can be further expounded upon in order to make it more operable, functional, and efficient. Every step in designing and assembling the prototype is essential to enabling the simple dream to become a reality. To give you a better idea of the process, this post will walk you through the life cycle of a prototype.

The Idea Phase
At this point, you or one of your clients may have a thought for how to improve an existing unit or device, or for creating something brand new. Here, you discuss what the PC board should be able to accomplish, what the functions of the device should be, and the sizing requirements for the unit and, therefore, for the board.

The Design Phase
Once you have a good idea but any size constraints for the board and know what it is that you want to be able to do with it, you can begin actually planning and designing the schematics for the PCB development for the prototype. You'll need to consider the necessary components for achieving your objectives, and how these will factor into the layering and thickness of the board, as well as any budgetary concerns.

The PCBA manufacturer Phase
After the design schematics have been tested out and approved, the board is ready to be assembled for the working prototype. In order to ensure that the PCB will be functional, efficient, and effective, it's important that all settings are properly calibrated (for automated processing), and that the use of the most advanced equipment is utilized so that every component is laid out and connected with the utmost precision, while still maintaining speed.

The Testing Phase
After the board has been assembled, it will need to be subjected to testing. First, you or your contract manufacturer will need to analyze the PCB to ensure that it's actually functioning in accordance with the client's specifications and the design schematics that were previously drawn up. Any inconsistencies or errors will need to be troubleshooted and addressed before the board is presented to the client. From here, the client may want to run their own set of tests, and actually test out the use and functionality of the device as a working whole before making a decision about ordering a larger batch.

The Adjustment Phase
After testing out the initial prototype, you or your client may notice certain areas that could be improved upon, which would make the end product more efficient and effective. After making not of these areas, you may need to go back to the original specs and make some adjustments before mass assembling the final PC boards.

A Never Ending Cycle
Even after a prototype has been approved for mass production and has made its way to the end user, its evolutionary cycle is never actually complete. As technology advances, it will be discovered that the existing device can be improved upon, or even eventually replaced, by something better, but that's what makes the world of technology so exciting! As long as dreamers are coming up with new ideas, we'll be ready to take on the challenge of developing prototypes that may end up changing the world.

Printed Circuit Board Words

1、印制电路：printed circuit
2、印制线路：printed wiring
3、印制板：printed board
4、印制板电路：printed circuit board (PCB)
5、印制线路板：printed wiring board(PWB)
6、印制元件：printed component
7、印制接点：printed contact
8、印制板装配：printed board assembly
9、板：board
10、单面印制板：single-sided printed board(SSB)
11、双面印制板：double-sided printed board(DSB)
12、多层印制板：mulitlayer printed board(MLB)
13、多层印制电路板：mulitlayer printed circuit board
14、多层印制线路板：mulitlayer prited wiring board
15、刚性印制板：rigid printed board
16、刚性单面印制板：rigid single-sided printed borad
17、刚性双面印制板：rigid double-sided printed borad
18、刚性多层印制板：rigid multilayer printed board
19、挠性多层印制板：flexible multilayer printed board
20、挠性印制板：flexible printed board
21、挠性单面印制板：flexible single-sided printed board
22、挠性双面印制板：flexible double-sided printed board
23、挠性印制电路：flexible printed circuit (FPC)
24、挠性印制线路：flexible printed wiring
25、刚性印制板：flex-rigid printed board, rigid-flex printed board
26、刚性双面印制板：flex-rigid double-sided printed board, rigid-flex double-sided printed
27、刚性多层印制板：flex-rigid multilayer printed board, rigid-flex multilayer printed board
28、齐平印制板：flush printed board
29、金属芯印制板：metal core printed board
30、金属基印制板：metal base printed board
31、多重布线印制板：mulit-wiring printed board
32、陶瓷印制板：ceramic substrate printed board
33、导电胶印制板：electroconductive paste printed board
34、模塑电路板：molded circuit board
35、模压印制板：stamped printed wiring board
36、顺序层压多层印制板：sequentially-laminated mulitlayer
37、散线印制板：discrete wiring board
38、微线印制板：micro wire board
39、积层印制板：buile-up printed board
40、积层多层印制板：build-up mulitlayer printed board (BUM)
41、积层挠印制板：build-up flexible printed board
42、表面层合电路板：surface laminar circuit (SLC)
43、埋入凸块连印制板：B2it printed board
44、多层膜基板：multi-layered film substrate(MFS)
45、层间全内导通多层印制板：ALIVH multilayer printed board
46、载芯片板：chip on board (COB)
47、埋电阻板：buried resistance board
48、母板：mother board
49、子板：daughter board
50、背板：backplane
51、裸板：bare board

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

Some other PCB concepts to explore

Soldermask – If I had to guess what you think of when I say “PCB” I would bet that it is probably something green. Did you know that PCB’s are not this color as a result of what material is used? This is in fact another layer that is applied to the board after manufacturing. The purpose is to keep solder paste from spreading where it shouldn’t be, but it also has the effect of giving the board a definite style.
Fiducials – These are special markings on your board that allow a pick-and-place automated assembly machine to calibrate itself. Fiducials are usually just a circle where the soldermask has not been applied with copper circle in the middle. This makes the point appear fairly reflective.
Silkscreen – This is also another layer of the Flexible pcb added after fabrication. Silkscreen is used to provide visual cues to the user, document board information, identify proper component placement, or for branding. There are conflicting suggestions on proper usage of silkscreen and I will address this in part 2.
Copper fill - Deciding whether to use a ground/power plane in your design will be an important decision to make during the design stage. The most common reasons for using a copper fill are to suppress noise on the ground circuitry, dissipate heat from a particularly active device, or because someone told you that was the way to do it.
That’s enough of learning what goes into PCBs though, let’s discuss how to get started on your design.

Following will be continued in next chapter.

Shirley Xia
Oversea sales
Wonderful PCB

A Floor 6, Nanyuan Fengye Mansion, Nanshan Avenue, Nanshan District, Shenzhen City 518054, China.
T +86-755-86229518-821 / Cell phone and whatsApp:008613480796172
F  +86 755 2607 3529|
e  wonderful25@wonderfulpcb.com |
w  www.wonderfulpcb.com  | Skype:wonderful-pcb02
Welcome to our trading shows:
Booth: 9G27, HK Globalsources Oct.11-14th,2014 AsiaWorld-Expo, Hongkong
Booth：A3.274-1，2014.11.11-2014.11.14，the Electronica in Munich, Germany

High PCB Design----Wonderful PCB (hk) Limited

Author: Jodie
In the field of telecommunications , the design is very complex , the transmission speed in the transmission of application data , voice and image of the
Has been far higher than 500Mbps, people in the communications field in pursuit of higher performance and faster to launch production

Goods, and the cost is not the first. They will use more board layers, sufficient power and ground planes, any problems that may arise in the high-speed signal lines will be implemented using discrete components match. They have
SI (signal integrity) and EMC (electromagnetic compatibility) experts to simulate and analyze the wiring before each
an internal design engineers follow strict design requirements. So the field of communication design engineers through
this design is often used excessive speed PCB board design strategy.

Home computer motherboard design area is the other extreme, the cost and effectiveness above all , the design
Teachers are always using the fastest, the best , highest-performance CPU chips, memory and graphics processing module technology
To form increasingly complex computer . The home computer motherboards are usually four shelves , some high-speed PCB

Design technology is difficult to apply to this area , so engineers in the field of home computers generally have adopted over
Research methods to design high-speed PCB board, they are designed to fully study the specific circumstances of those who truly resolved
The existence of high-speed circuit problem.

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 |
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