Zhejiang PV industry is facing greater pressure
We are manufacturing reliable Flex and Rigid-Flex boards using most advanced process. Rigid-flex PCBs improve reliability and lower costs associated with your device.
In electronics, we sometimes encounter seemingly new technologies that have roots in the past. Rigid Flex PCB technologies trace back approximately 50 years to the need to replace wiring harnesses in spacecraft. The first commercially available mobile computer (which weighed a little over 25 pounds!) used rigid flex technologies.
Firstly, the electronic engineer draws the circuit and outline of the flexible circuit board according to the requirement, and then sends it to the factory which can produce the flexible and rigid PCB. After the CAM engineer processes and plans the relevant documents, then arranges the FPC and PCB production lines needed for FPC production line to produce PCB. After the two kinds of flexible and rigid PCB are produced, the FPC and PCB are passed through according to the planning requirements of the electronic engineer. After seamless pressing and a series of details, the rigid flex PCB are finally made.
PCB is experienced in producing custom Rigid-Flex PCB, welcome your inquiry. Please check our Rigid Flex PCB manufacturing capabilities below.
Item
Manufacturing Capability
PCB Layers
1 - 12layers
Laminate
Flexible part: DuPont PI, Shengyi PI
Rigid part: PI/FR4
Maximum PCB Size(Length x Width)
406*610mm
Board Thickness
a‰¤3.2mm
Finished board thickness tolerance
?±2mil(?±0.04m)
Copper Thickness
0.3oz - 1.0oz or higher
Min Tracing/Spacing
2.5mil/2.5mil
Min. Annular Ring
4mil
Min. Drilling Hole Diameter
8mil(0.2mm)
Min. hole size
8mil(0.2mm)
Min. finished via diameter
6mil(0.15mm)
Tolerance of dimension
3mil(0.076 mm)
Solder Mask Color
Green, White, Blue, Black, Red, Yellow
Silkscreen Color
White, Black, Yellow
Surface Finish
OSP
HASL(Hot Air Solder Leveling)
HASL Lead-Free
Flash Gold
ENIG (Electroless Nickle/Immersion Gold)
Immersion Tin
Immersion Silver
Special technologies
Impedance Control+/-10%
Gold fingers
Stiffener (PI/FR4)
Peelable solder mask
Another key issue in rigid flex reliability is the thickness and type of conductor found in the bend region. You can decrease thickness and mechanical stress by reducing the amount of plating on the conductors and using pads only plating. The use of heavy copper, gold, or nickel plating decreases flexibility at the bend and allows mechanical stress and fracturing to occur.
If you have assembly requirements for rigid flexible PCB, please refer to our PCB Assembly Service description.
Rigid Flex PCB Rigid Flex PCB,Flexible Printed Circuit Board,Polyimide PCB,FPC PCB JingHongYi PCB (HK) Co., Limited , https://www.pcbjhy.com
US "double reverse" measures Zhejiang photovoltaic companies worse <br> <br> after three delayed the final announcement of the results, make the industry a little sigh of relief. After all, this result is much better than the previous worst expectation - up to 100% of the tariff rate. Looking at countervailing duties alone, it seems to have little effect on photovoltaic companies in Zhejiang, but it is necessary to pay attention to the anti-dumping tax rate on this case that will be announced on May 16. The rate can be up to 100%.
According to the person in charge of the Jinhua Bureau of Commerce, there are many photovoltaic companies newly launched in Jinhua City in the past two years. The products are mainly sold domestically and exported to European and American markets. The "double reverse" stick raised by Americans certainly has an impact on Jinhua photovoltaic companies, but it is not expected to be too big. However, taking into account that the current photovoltaic industry is in a low tide, this time, the United States' "double countermeasures" can be described as worse for the photovoltaic companies in Jinhua.
Compared with the US "double countermeasures," photovoltaic companies in Jinhua are even more worried about what actions will be taken by Germany and other EU countries. Sources said that the German Solar Energy Association will file a joint complaint alleging that China's photovoltaic products will be dumped at a low price. At present, the German Solar Energy Federation is in contact with relevant industries in the EU and is preparing to submit anti-dumping complaints to Chinese PV products in 27 member states of the European Union.
According to Jinhua's foreign trade statistics, Jinhua's PV product exports achieved a leap in 2010: In 2009, Jinhua's PV products exported more than US$8 million and rose to US$117.6 million in 2010, becoming the fastest growing single export product category in the city. Exports to the EU are the main, followed by the United States. At that time, the Jinhua Foreign Trade Department had warned that Jinhua PV companies relied heavily on foreign markets. Raw materials and equipment were imported from abroad. Large quantities of components were exported to foreign countries. Enterprises only occupied intermediate production links. This division of labor determines the vulnerability of Jinhua's photovoltaic industry. Once the market has been troubled, companies do not have the ability to resist risks.
Sure enough, after entering 2011, due to overcapacity, the price of photovoltaic products dropped rapidly and suddenly changed from the previous seller's market to the buyer's market. At the same time, foreign customers have high payment risks because the price of PV modules has fallen too quickly. Last year, a PV company in Jinhua exported a number of components to German customers. The risk of delays due to delays in purchases by foreign buyers was approximately $7 million. According to statistics from China Credit Insurance Zhejiang Branch, the photovoltaic industry has become the industry with the highest risk of buyer payment.
According to a survey conducted by the Shanghai Municipal Bureau of Commerce, some photovoltaic companies in Jinhua are very sad nowadays. Some companies that are preparing to launch their projects are not correct. They immediately applied for the issuance of production equipment by foreign customers, and some enterprises that have not yet purchased equipment have turned around.
The outlook for the domestic market to be expanded is still bright. a€?At present, the groupa€?s PV production is fairly decent, which is better than we expected. Since the second half of last year, the companya€?s orders have gradually improved.a€? Wang Jun, vice president of marketing at Group Sheng Group, spoke about this. The United States said during the "double countermeasures."
Lu Meiyue, chairman of Zhejiang Xinshun Photovoltaic Technology Co., Ltd., believes that the future of the economy in Europe and the United States is still optimistic. She believes that if the European and American countries that are deeply in debt crisis want to stimulate economic development, the new energy industry must support it. While domestic products have a price advantage, they have also imported large amounts of expensive equipment from European and American countries, which has benefited many countries in Europe and America. She estimated that although it is now less than the kind of double-digit increase in previous years, it is still possible to maintain 20% growth every year.
Jinhua, another person in charge of photovoltaic companies, said that the solar panels they currently sell in the United States cost about 0.75 US dollars per watt, while the average price of American companies' products is about 0.97 US dollars per watt. With the launch of the US a€?double countera€? measures, Chinaa€?s solar cell products exported to the United States will likely be subject to a tariff of around 30%, which will lead to the loss of competitiveness of Chinaa€?s photovoltaic companies.
Some experts believe that the photovoltaic industry is an industry with a high degree of internationalization. Upstream, there are advantages in U.S. raw material manufacturing and equipment manufacturing. In the downstream, there are advantages in Chinese manufacturing. We all work together to promote the development of the solar energy industry. There is no Chinese enterprise to a certain one. The state dumps products.
Speaking of countermeasures, Wang Jun said: a€?Our company focuses on two cards: First, it expands emerging markets, while stabilizing the traditional markets of the United States, the European Union, etc., while striving to develop markets in South America, Southeast Asia, and do a good job in expanding the domestic market. Reduce market risk. Second, develop new products and expand market coverage. Successfully introduce a variety of new products related to photovoltaic technology to the market. The response is good. There are a number of new products under development that are expected to become new corporate economics. growth point."
This reporter learned that Japan, Europe and the United States and other countries and regions have all introduced preferential policies to encourage photovoltaic power generation to access the Internet. A supplier of photovoltaic parts and components of Jinhua suggested that photovoltaic grid-connected grids should be accelerated and that we should refer more to successful experiences abroad, such as granting subsidies for qualified photovoltaic building applications, or taxing photovoltaic cell manufacturers. And credit support to expand the domestic market and promote the stable development of the photovoltaic industry.
Rigid Flex PCB , combine the best of both Rigid PCB and flex circuits board into one unit
In order to let you have a deeper understanding of rigid Flexible PCB so as to select more suitable PCB products for your products, this article will give you a detailed understanding of the definition, type, application, manufacturing process, advantages, materials used in manufacturing, and stack up structure of rigid flexible PCB. And design guidelines
Rigid Flex PCB is an excellent combination of rigid boards and Flexible Circuits . Flex Rigid PCB is connected by PTH (plated through holes). Higher component density and better quality control can be guaranteed.
Today, laptop computers, wearable technologies, medical devices, test equipment, and satellites are a few of the applications that rely on rigid flex PCBs.
WHAT IS RIGID FLEX PCB?
Rigid Flex Printed Circuit Boards are boards using a combination of flexible and rigid board technologies in an application. Most rigid flex boards consist of multiple layers of flexible circuit substrates attached to one or more rigid boards externally and/or internally, depending upon the design of the application. The flexible substrates are designed to be in a constant state of flex and are usually formed into the flexed curve during manufacturing or installation.
Rigid Flex designs are more challenging than the design of a typical rigid board environment, as these boards are designed in a 3D space, which also offers greater spatial efficiency. By being able to design in three dimensions rigid flex designers can twist, fold and roll the flexible board substrates to achieve their desired shape for the final application's package.
As with conventional PCBs, you can mount components on both sides of the rigid board. Because of the integration that occurs between rigid and flex circuits, a rigid flex design does not use connectors or connecting cables between the sections. Instead, the flex circuits electrically connect the system together.
The lack of connectors and connecting cables accomplishes several things:
Every rigid flex PCB is divided into zones that feature different materials and varying layer counts. Rigid zones may have more layers than flexible zones, and materials shift from FR 4 to polyimide in transition zones.
TYPES OF RIGID FLEX PCB
A four layer combination rigid flex circuit has four conductive copper layers. Typically, a four layer has two flexible layers and two rigid layers.
A 6 layer combination rigid flex circuit has six conductive copper layers. The two most common design types are as follows:
Rigid flex circuits combine the best of both rigid boards and flex circuits integrated together into one circuit. The two in one circuit is interconnected through plated thru holes. Rigid flex circuits provide higher component density and better quality control. Designs are rigid where extra support is needed and flexible around corners and areas requiring extra space.
RIGID FLEX PCB APPLICATIONS
In consumer products, Rigid Flex doesn't just maximize space and weight but greatly improves reliability, eliminating many needs for solder joints and delicate, fragile wiring that are prone to connection issues. These are just some examples, but Rigid Flex PCBs can be used to benefit nearly all advanced electrical applications including testing equipment, tools and automobiles.
RIGID FLEX PCB Manufacturing
Because Rigid flex PCB is the combination of flexible PCB and rigid PCB, the production of Rigid-flex PCB should have both FPC production equipment and Rigid PCB production equipment.
RIGID FLEX PCB FABRICATION PROCESS
A very important link is that the rigid flex PCB is very difficult and has many details. Before shipment, it is generally necessary to carry out a full inspection, because of its high value, so as to avoid the loss of related interests caused by both suppliers and demanders.
BENEFITS OF RIGID FLEX PCB
RIGID FLEX PCB FABRICATION MATERIALS
As the Rigid flex circuit market continues to expand, there have been many advances in technology including:
RIGID FLEX PCB DESIGN GUIDE
Different challenges offset the versatility and flexibility that allow you to build three dimensional designs and products. Traditional rigid flex PCB designs allowed you to mount components, connectors, and the chassis for your product to the physically stronger rigid part of the assembly. Again, in terms of traditional designs, the flexible circuit only served as an interconnect while lowering the mass and improving the resistance to vibration.
New product designs coupled with improved flex circuit technologies have introduced new design rules for rigid flex PCBs. Your design team now has the freedom to place components on the flexible circuit area. Combining this freedom with a multilayer approach to rigid flex design allows you and your team to build more circuitry into the design. However, gaining this freedom adds a few challenges in terms of routing and holes.
Flexible circuits always have bend lines that affect routing. Because of the potential for material stress, you cannot place components or vias close to the bend line.
And even when components are properly located, bending flex circuits places repeated mechanical stresses on surface mount pads and through holes. Your team can reduce those stresses by using through hole plating and by bolstering pad support with additional coverlay to anchor the pads.
As you design your trace routing, follow practices that reduce stress on your circuits. Use hatched polygons to maintain flexibility when carrying a power or ground plane on your flex circuit. You should use curved traces rather than 90?° or 45?° angles and use teardrop patterns to change trace widths.
These practices decrease stress points and weak spots. Another best practice distributes stress across traces by staggering the top and bottom traces for double sided flex circuits. Offsetting the traces prevents the traces from laying over each other in the same direction and strengthens the PCB.
You should also route traces perpendicular to the bend line to reduce stress. When moving from rigid to flex and back to rigid, the number of layers from one medium to the other may differ. You can use trace routing to add stiffness to the flex circuit by offsetting the routing for adjacent layers.
Electromechanical Factors Influence Design
When you design rigid flex PCBs, think in terms of electromechanical factors that affect both the flex circuit and the rigid board. As you build your design, focus on the ratio of bend radius to thickness. With flex circuits, tight bends or an increased thickness at the bend area increase the chances for failure. Fabricators recommend keeping the bend radius at a minimum of ten times the thickness of the flex circuit material and building a [paper doll" of the circuit to determine where bends occur.
You should avoid stretching the flex circuit along its outer bend or compressing it along the inner bend. Increasing the bend angle beyond 90?° increases stretching at one point and compression at another point on the flex circuit.
Rigid flex PCB stack up
Rigid Flex PCB assembly
YOU MAY ASK:
What is HDI PCB ?
HDI PCB is defined as a PCB with a higher wiring density per unit area than conventional PCB. They have finer lines and spaces, smaller vias and capture pads and higher connection pad density than employed in conventional PCB technology.
What is Metal Core PCB ?
MCPCB, Metal Core PCB, thermal PCB. Metal core pcb is abbreviated as MCPCB, it is made of thermal insulating layer, metal plate and metal copper foil, which has special magnetic conductivity, excellent heat dissipation, high mechanical strength and good processing performance.
What is MCPCB?
A Metal Core Printed Circuit Board (MCPCB) is a type of printed circuit board that contains a base metal material. The core is designed to redirect heat away from components which produce a substantial amount of heat.
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