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.

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Several classification of flexible printed circuit board

At present, mainly has the single side, double side, multilayer flexible circuit and Flexible pcb just four.


(1) single flexible plate is the lowest cost, when the PCB for electrical demand is not high.When single wiring, should choose single flexible plate.It has a layer of chemical etching of conductive graphics, in the flexible conductive graphics layer on the surface of the insulating substrate for rolled copper foil.Insulating base material can be polyimide, polyethylene terephthalate, aromatic polyamide fiber resin and PVC.


(2) double flexible plate is on the two sides each have a layer of insulating base film etching made of conductive graphics.Metallized hole to both sides of the insulation materials connection form a conductive path, in order to meet the deflection design and use of the function.While covering film can protect the single and double wires and components placed.


(3) multilayer flexible plate is a level 3 or more layers of single sided or double sided laminated flexible circuit together, through the drill away L form hole metallization, electroplating, the formation of a conductive path between different layers.So, do not need to adopt the complex welding process.Multilayer circuit in higher reliability, better thermal conductivity and convenient assembly has huge function differences in performance.When designing the layout, assembly shall be taken into consideration, layer number and size of flexible influence each other.


(4) the traditional just flexible plate is made from rigid and flexible substrate has a choice of formation pressure together.Structure closely to metallization away L form electrical connection.If a PCB is, opposite element, just flexible plate is a good choice.But if all the components are on one side, selects the double flexible plate, and on the back of the laminated layer on FR4 reinforced material, will be more economic.


Hybrid structure is a kind of sandwich plate, flexible circuit conductive layer made of different metals.A eight layer plate using FR - 4 as inner layer medium, the use of polyimide as outer medium, out from three different direction of the main board, lead each wire made of different metals.Constantan alloy, copper and gold as independent lead, respectively.This kind of hybrid structure is mostly used in electrical signal conversion and is quite harsh relationship and performance of heat transformation of low temperature circumstances, is the only feasible solution.


Even through the design and how easy it is to evaluate the total cost, in order to achieve the best performance/cost ratio.

PCB, CCL application CQC authentication problem solving-（2）---Wonderful PCB (hk) Limited

7, application considerations of CQC standard sample production?
A: cQc application process, a lot of samples, such as single, double-sided and multilayer Rigid-flex pcb must be in accordance with the relevant standard production standard test pattern. , therefore, should read carefully the sample when making standard graphics shows that for the appearance of the sample size, drilling and welding plate diameter, width of wire spacing, especially the laminated lining graphical distribution of parameters such as pay special attention to, in order to reduce due to the improper understanding during sample preparation and the amount of time the sample error.

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.

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.

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
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