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 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

PCB Replacement and Repair

The world is changing and technology is always changing too! But sometimes there are certain components which need some minor tweaks and changes to last even longer throughout the years. This can even happen with a client's manufactured electronic products when they need to be upgraded to a newer manufactured device.

When this happens, your manufacturer can help with the entire process of helping all of your clients to prevent sluggish PCB systems. However, there are other reasons why a PCB needs to be repaired, other than having to upgrade the entire system.

Wonderful PCB (HK) Limited is a professional PCB manufacturer with assembly line in house. It provides high quality PCB with good after-sale service. In face of complainant from clients, Wonderful PCB provides completed after-sale service including PCB replacement or repair.

Saving Time, Money & Repairing Defects

When you're going to ship out huge batch orders of units, sometimes taking the extra time to keep account of all of the components and making sure that every single component are finely assembled on the PCB board. And make sure every single one doesn't have a defect which can be very time consuming. However, you can save time from having to recall certain parts or dealing with defunct PCBs by Wonderful PCB when they can correct a design flaw to make sure PCB-repair the system isn't running slow.

This is also good for you, because it means your own clients utilizing PCBs won't be complaining about sluggish systems that can cost them time and money too. You can also implement cost effective solutions when a PCB manufacturer needs to be repaired, which can mean not having to replace an entire batch order and do a complete redesign simply because of a minor defect that can be repaired by the manufacturer.

New Software, New Repairs

When your PCB components and software are due for a brand new update, please don't worry more about it: Wonderful PCB can take care of everything. Sometimes software on the PCB can become slow and sluggish when it is new and the platform it is running on is older than the software itself, making it frustrating for all parties involved.

You or your clients using the PCB components need to stay up with all of the latest software, especially when everything is becoming so fast paced in the technology industry as is. PCB board repair can ensure that everything is fast, highly responsive, and in working order with the best components available on the market.

However, PCB repair and replacement which does mean that the entire batch order will need to be repaired in order to ensure that the software continues to run seamlessly and smoothly. This can take some time to do with bigger orders, but like mentioned earlier, the investment in PCB repair services creates better time management in the long run.

Aluminum board process-B

5.4 board inspection
5.4.1 line surface must be in accordance with the requirements of the MI to check all the content.
5.4.2 must check on aluminum surface, aluminum surface dry film cannot have film falls and broken.
5.5 etching
5.5.1 for copper base is commonly 4 oz, will there is a certain difficulty in etching.First plate must be approved by the captain in person to do board, made in the spot check, line width, line spacing should be strengthened once every 10 PNL plate spot check line width, and make records.
5.5.2 recommended parameters: speed: 7 ~ 11 dm/min pressure: 2.5 kg/cm2 proportion: 25 be temperature: 55 ℃ (the above parameters are for reference only, the test plate results shall prevail)
5.5.3 back membrane should be paid attention to the time of the control between 4 ~ 6 min, because aluminium will reaction with NaOH, but also must ensure that the membrane clean, backing down membrane liquid membrane was not allowed to turn up the heat.No protective film of the plate, aluminum, from liquid membrane in the back up after the board will not stay to wash water on a board in time of liquid membrane, prevent the alkali corrosion of aluminum pcb surface.  
5.6 corrosion inspection
5.6.1 normal board.
5.6.2 it is forbidden to use the blade repair line, in order to avoid injury and dielectric layer.
5.7 the solder mask
5.7.1 production process:
Brush copper surface grinding plate (only) to screen printing green oil (the first), and preliminary drying screen printing green oil (second) and the preliminary drying - exposure and development - plate mill, the acid pickling process. Under the soft brush - after curing -
5.7.2 reference parameters:
5.7.2.1 yarn used 36 t + 100 t
First 75 ℃ 5.7.2.2 x 20-30 min;The second 75 ℃ x 20-30 min
5.7.2.3 exposure: 60/65 (single) 9 ~ 11
5.7.2.4 enhancement: speed: 1.6 ~ 1.8 m/min pressure: 3.0 kg/m2 (total pressure)
5.7.2.5 curing: after 90 ℃ * 60 min + 60 min + 110 ℃ 150 ℃ above x 60 min parameters for the use of the DSR - 2200 tl ink, used only for reference.
5.7.3 note printing for control of air bubbles, if need, can add 1-2% of the diluent.
5.7.4 clappers before clappers member should check panel, there is a problem of instruct the captain and then to the clapper.   
5.8 HASL
5.8.1 spray before tin for aluminum plate with protective film tear protective film after spray tin.    
5.8.2 edge with both hands, it is strictly prohibited by hand directly touch the plate (especially aluminum surface).
5.8.3 operation, fight chafed.
5.8.4 tin cookie sheet before 130 ℃, 1 hour, and baking sheet to spray tin interval time less than 10 minutes.In order to avoid temperature difference cause a layered with ink.    
5.8.5 rework plate spray is only allowed to return once, if more than one board, to distinguish for special treatment.    
5.9 aluminum surface passivation treatment
5.9.1 level passivation process: (1) scrubbing brush (500 #) to (2) water - > (3) passivation, (4) washing the x 3-5. Dry - 6 drying
Note: (1) grinding plate: only aluminum surface grinding, FR4 parameter grinding plate.First board to check line no scratches, as well as the tin cried, uniform grinding crack.
(3)passivation: potion ingredients open cylinder quantity cylinder volume liquid temperature control concentration spraying in tank pressurization rate
Na2CO3 (CP) 50 g / 6500 g l, 130 l, 40 ~ 50 ℃ 2.0 ~ 3.0 1.0 ~ 1.5 m/min effective soaking time 10 ~ 15 s 100 m2 CP (K2CrO4) 15 g/l,  1950 g NaOH (CP) 390 g, 3 g/l
6 drying: 80 ~ 90 ℃.
Tyle = "the oledata.mso - spacerun: 'yes', the font size: 10.5000 pt; the font-family:" tahoma "; "> 5.7.2.5 curing: after 90 ℃ * 60 min + 60 min + 110 ℃ 150 ℃ above x 60 min parameters for the use of the DSR - 2200 tl ink, used only for reference.
5.7.3 note printing for control of air bubbles, if need, can add 1-2% of the diluent.   
5.7.4 clappers before clappers member should check panel, there is a problem of instruct the captain and then to the clapper.  

WonderfuI Printed Circuit Board

    Flying Probe Tester is a test PCB manufacturing environment system. Instead of using the conventional on-line testing machine all conventional needle bed (bed-of-nails) interface, flying probe test uses four to eight independent control of the probe, is moved to the test element. In the measurement unit (UUT, unit under test) supplied to the testing machine by a belt or other transmission system UUT. Followed by fixing the probe tester to test pad (test pad) and a via hole (via) was tested for in a single element measuring means (UUT) is. Test probe connected via multiplexing (multiplexing) to the drive system (signal generator, power supply, etc.) and sensor (DMM, frequency counter, etc.) to the test element on the UUT. When a component is being tested, and other components on the UUT through the probe electrically shielded to prevent interference readings (Figure 1).
    Flying Probe Tester can check the short circuit, open circuit and component values. On the flying probe test also uses a camera to help locate the missing elements. With a camera to check the direction clear element shapes, such as polar capacitors. With the probe positioning accuracy and repeatability reach 5-15 micron range, flying probe tester can accurately detect UUT.
    Flying Probe Test solve a lot of the current problems in PCB assembly to see, such as the lack of a model in the development of gold (golden standard board). Problems may take up to 4-6 weeks also includes test development cycle; about $ 10,000- $ 50,000 a fixture development costs; not less economically test production; and the inability to quickly test the prototype (prototype) assembly. These cases illustrate, the traditional test-bed tester lack of low cost production system; lack of a quick test prototype assembly cover; and can not test to shield assembly.
    Because the ability to have close contact with the UUT shielding ability and help reach the market faster (time-to-market), the flying probe test is an invaluable resource production. Further, since no test development engineer experienced, the system can be considered as having the added value of savings in equipment and time savings and other benefits of manpower.

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

PCB Test

More intensive PCB, higher bus speeds and analog RF circuits, etc. have put to the test with unprecedented challenges , this environment functional test requires careful design and thoughtful testing methods and the proper tools in order to provide credible test results , adequate preparation and careful screening tool will be able to achieve a multiplier effect .
Significance

Functional test is becoming more and more important , however, the online tests, and the PCB board design technology development test range will be limited. Although the programming software environment has made great progress, help to overcome some of these difficulties , but if you want to follow your successful implementation of functional testing test strategy , there are many issues that need to be done to avoid and more thorough preparation . This paper describes the successful implementation of functional testing should consider a number of factors and coping methods and strategies . Electronic functional test has its ups and downs of history, the late 1960s it was the first automated test method , with the late 1970s online testing technology, functional testing seems destined to give way to determine the increasingly quick and easy programming and online test . Today, however, the trend has changed. Online testing is currently a growing problem , namely detection methods . According to the U.S. NEMI ( National Electronics Manufacturing Organization ) analysis can detect the end of 2003 nodes essentially zero, if unable to be detected , then the online test almost useless.

Function test is increasingly more for the production line process, even used for the middle of the test process , but the system and method of the previous embodiment is almost completely different tests . Today, in most cases, the test system is faster and more compact structure , function test for verifying the overall functionality of the product , maintenance, calibration information , provides data to ISO9000 and to ensure high-risk products , such as medical equipment, quality , etc. are indispensable.

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

PCB production

Typically, PCB manufacturers specially prepared PCB prototype and Aluminum pcb manufacturing for all positions, not only in style but also need to be prepared with difficulty PCB prototype PCB style.

The fact is, PCB fabrication updated with the latest manufacturing technology, it is merciless comes to provide the necessary products, is using PCB. Therefore, people now days are very lucky because modern electronic products and commodities as processing and manufacturing of these important printed circuit board. Supporters of PCB manufacturing so I do not consider their own ignorance, or do not realize that modern PCB technologies. As a fact, a variety of PCB has become larger and more widespread prosperity. These recent developments led the company's efforts in the pursuit of greater efforts to meet the demand of these products should have. Therefore, processing, manufacturing, and design have become the effective implementation of the PCB in their field. This is not surprising, because the company is equipped with advanced high-end PCB equipment is critical to achieve and prototype stages of the product.

The placement of the elements must be clear plans must also have a range of levels, the so when there is a modification in the technical one without redesigning the complete PCB. Add or change a smaller can help prepare an upgrade PCB thus saving a lot of cash. Typically, a single production difficulties PCB likely require more than a skilled, for the number of pilot projects. In these kinds of cases, PCB are usually very high price; take a lot of tiles you want to create.

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

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.