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RF PCB Printed Board
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  • Teflon PTFE PCB Characteristics
    Teflon PTFE PCB Characteristics
    • January 06, 2023

    Teflon PTFE PCB Characteristics Polytetrafluoroethylene, also known as Teflon PCB or PTFE, is a chemical compound that is commonly referred to as "non stick coating" or "easy to clean substance." This substance is nearly insoluble in all solvents and exhibits acid resistance, alkali resistance, and resistance to different organic solvents. Teflon can be utilized as an appropriate coating for high-end electronic devices' PCB proofing as well as for easy cleaning of the inner layer of water pipes due to its high temperature resistance and extremely low friction coefficient. This is another another typical component used to make PCBs. Teflon is a strong and lightweight substance. This substance is frequently used in applications that demand precise limits. At high temperatures, Teflon won't expand. This substance's flame retardant properties are one of its benefits. It is ideal for high-speed applications because of the characteristics of this material. Teflon is durable and maintains a stable temperature.. Teflon PCB exhibits a number of outstanding qualities. Making Teflon PCB examples begins with the choice of materials. Teflon PCB is used in the Wangling F4B, Rogers 5 series, and Rogers 3 series. Prototyping of flexible PCBs frequently involves the use of plastics. A handy material for making PCBs is PTFE. Teflon PCB provides several special benefits. Function test: Following the creation of the Teflon PCB sample, the board successfully passes the test to access its functions as intended. Teflon circuit boards can tolerate extremely cold and hot temperatures. It is employed in military and aerospace applications primarily for this reason. The plate can function between - 270 and 315 °F and between -454 and 600 °F. It can withstand any temperature and prevent cracking. High dielectric strength: due to the high dielectric strength of the plate, it does not conduct electricity. It works perfectly as an insulator. The insulating power of this material can protect the equipment from electric breakdown. Durability: PTFE PCB is an ideal choice because it is very durable. It can withstand oxidation, UV, embrittlement or discoloration. Because of its durability, it is a cost-effective option. Mechanical rigidity: Teflon PCB has mechanical stability. This makes it ideal for applications exposed to high levels of mechanical stability. Teflon PCB has good thermal conductivity. High temperature resistance: long-term use temperature: 200~260 ℃; Low temperature resistance: soft at - 100 ℃; Corrosion resistance: resistant to aqua regia and all organic solvents;  Weather resistance: the best aging life of plastics; High lubrication: it has the minimum friction coefficient (0.04) among plastics; Non sticky: it has the minimum surface tension among solid materials without adhering to any substance; Physiological inertia: With excellent electrical performance, it is an ideal class C insulating material. A thick layer of newspaper can block 1500V high voltage; ...

  • Overview of Global PCB Printed Circuit Board Market
    Overview of Global PCB Printed Circuit Board Market
    • December 29, 2022

    Overview of Global PCB Printed Circuit Board Market ① PCB global market space is vast The PCB industry is the industry with the largest output value among the global electronic component subdivision industries. In 2017 and 2018, the global PCB output value grew rapidly, with an increase of 8.6% and 6.0% respectively. Due to the weak macroeconomic performance and the impact of the Sino-US trade war, the global PCB output value in 2019 decreased by 1.7% compared with the previous year. Affected by the prevention and control of the new crown epidemic in 2020, scenarios such as home office and home study will stimulate demand for personal computers, consumer electronics, and network communications, and the gradual recovery of automobile production and demand in the second half of 2020 will drive PCB demand to pick up. According to Prismark statistics, the total output value of the global PCB industry in 2021 will be US$80.92 billion, an increase of 24.1% over 2020. Driven by factors such as intelligence and low carbonization, PCB downstream application industries such as 5G communications, cloud computing, smart phones, smart cars, and new energy vehicles are expected to flourish, and the vigorous development of downstream application industries will drive continued growth in PCB demand . According to Prismark's forecast, the total output value of the global PCB industry will grow by 4.2% in 2022; the global PCB market will maintain moderate growth in the next five years, with a compound annual growth rate of 4.6% from 2021 to 2026. ②The global PCB industry is shifting to Asia, especially mainland China The PCB industry is widely distributed around the world. The developed countries in the United States, Europe and Japan started early, developed and fully utilized advanced technical equipment, and the PCB industry has made great progress. Before 2000, the three major regions of America, Europe and Japan accounted for more than 70% of the output value of global PCB production and were the most important production bases. In the past two decades, relying on the advantages of Asia, especially mainland China, in labor, resources, policies, and industrial agglomeration, the global electronics manufacturing capacity has been transferred to mainland China and other Asian regions. With the transfer of the global industrial center to Asia, the PCB industry presents a new pattern with Asia, especially mainland China as the manufacturing center. Since 2006, mainland China has surpassed Japan to become the world's largest PCB production region, and the output and value of PCB rank first in the world. As the largest production area in the global PCB industry, mainland China has accounted for 54.6% of the global PCB output value from 8.1% in 2000 to 54.6% in 2021. The PCB industry in regions and other places has developed rapidly. ③Development trend According to Prismark's prediction, Asia will continue to dominate the development of the global PCB market in the n...

  • What is Rogers PCB?
    What is Rogers PCB?
    • December 15, 2022

    What is Rogers PCB? Rogers PCB is a type of high-frequency board that raw material is produced by Rogers company. Epoxy resin distinguishes it from traditional PCB boards (FR4). It uses a ceramic base as the high-frequency material and lacks a glass fiber in the middle. The thermal stability and dielectric constant of Rogers are superior. It can be utilized to address the shortcomings of PTFE substrates since copper foil and its dielectric constant thermal expansion coefficient have very similar properties. It is excellent for commercial microwave, radio frequency, and high-speed electronic design applications. Due to its low water absorption, it is perfect for high-humidity applications, giving clients in the high-frequency board sector access to the best raw materials and resources that fundamentally improve the quality of the finished product. Once they are aware of FR4's subpar performance at microwave frequencies, many PCB designers see Rogers as a need for high-frequency PCB materials. PCBs using the Rogers laminates are called Rogers PCB. A company called Rogers creates laminate materials that are utilized to create PCBs. PCBs are often constructed using the FR4 material, which is a glass fiber and epoxy resin hybrid. The FR4 laminates that Rogers supplies have stronger high-frequency characteristics. The primary materials they offer have high-frequency characteristics similar to Teflon. Rogers offers a wide variety of materials used for high-frequency PCBs with a relative permittivity ranging from 2.3 to 10.2 and low dielectric losses: Fluoroplastics RT/duroid series (RT500, RT600); Reinforced fluoroplastics RO3000 and RO4000 series; Hydrocarbon ceramics TMM; Reinforced laminates ULTRALAM 2000. All materials have a standard range of thicknesses and can have one- or two-sided metallization from electrodeposited or rolled foil (copper, brass, aluminum) of a given thickness. Rogers materials can be combined with FR4 to create printed circuit boards because they both have high properties (loss tangent, dielectric constant, etc.). The following beneficial qualities are offered by Rogers PCBs: Throughout the performance, they have the least amount of electrical signal loss. They also have the lowest dielectric losses. They offer efficient thermal function management. They have a wide variety of dielectric constant values. They offer the minimal outgassing capability, which is crucial for applications in space. Additionally, they feature effective impedance control. The ceramic hydrocarbon lamination of the Rogers PCBs is combined with an insulating dielectric layer. For electrical connections and changes, this layer functions as a poor conductor. In this case, good insulating materials include the oxides of metals and other substances like mica and porcelain. The special qualities of the insulating substance are enhanced by this use. This insulating layer significantly lowers the loss of signals on PCBs. Additionally, it aids in preserving the ...

  • Rogers 4350B PCB vs Megtron 6 PCB
    Rogers 4350B PCB vs Megtron 6 PCB
    • December 09, 2022

    Rogers 4350B  PCB vs Megtron 6 PCB PCBs are evolving with the continually increasing demands of the electronics and telecom market. We are sitting on the eve of widespread deployment of 5G wireless technology across the globe. This will mean that the underlying electronic devices (primarily cell phones and other network-dependent electronics) will need to cope with the high-frequency demands of the 5G technology. When it comes to high-frequency circuits, the most commonly used PCB material, FR-4, doesn’t seem to cut it. FR-4, while being widely used, tends to be a very loss-generating material in high-frequency circuits. For such circuits, specialized materials (laminates) are chosen. There is a wide variety of them available in the market, from season manufacturers like Isola, Itera, Taconic, Rogers, and Panasonic. Among them, two of the most commonly used materials are Rogers R04350B and Panasonic Megtron 6. Let’s see the difference between the two. Similarities between Rogers 4350B and Panasonic Megtron 6 Finding the low-loss material that will provide the best balance of performance and board cost for a given application is morecomplicated than simply comparing laminate datasheets and prices. Datasheets do not reveal which materials involve relativelymore or unusual processing steps during PCB fabrication, which can raise manufacturing cost. Consider Rogers 4350B and Panasonic Megtron 6, which have similar low Df and Dk values, have been used extensively in RF applications, and areincreasingly being used for high-speed digital products.Both are based on hydrocarbon resins; the Rogers resin has a ceramicfi ller. Neither laminate is available clad with quarter-ounce copper. The thinnest foil available for the Rogers material is half-ounce,and for Megtron 6, one-third-ounce.Both materials are available with low-profi le foils to prevent signal refl ections at highfrequencies. Both Rogers 4350B and Megtron 6 are specifically designed high-speed laminates. Both fall into the extremely low-loss category of laminates (if considered based on the loss). In terms of highest efficiency and least incurring losses, Rogers 4350B and Megtron 6 are second only to specifically designed extremely low loss, microwave laminates like Taconic RF-35TC. Both the materials are very similar when it comes to many electrical and transmission characteristics. Take the signal loss, for example. Megtron 6 tends to be the superior material for frequencies below 5, but over that, Rogers 4350B has a slight edge (just a shade better than Megtron 6). If we dive a bit deeper into the laminate material’s electrical performance properties, two other terms that you might have heard are Permittivity (Dk) and Loss tangent (Df). Megtron 6 has a Dk of 3.7 and Df of 0.002 at 2 GHz (3.3 and 0.004 at 10 GHz). Whereas Rogers 4350 has a Dk of 3.43 and Df of 0.0037 at 10 GHz. So in higher frequencies, Rogers 4350B has a bit of an edge in these commonly compared electrical characteristic...

  • High-Quality PCB Material That Meets Your Needs
    High-Quality PCB Material That Meets Your Needs
    • December 02, 2022

    High-Quality PCB Material That Meets Your Needs PBC specs and costs for printed circuit board prototyping and production vary depending on the PCB materials used. There are 1 or 2 layer boards that just need one pre-preg "core" and multiple layer boards that are constructed using two or more core types. Depending on the intended purpose and the needed thickness, pre-preg, a material comprised of thin layers of fiberglass "pre-impregnated" with a bonding agent or metal core in a sheet shape, comes in a variety of sizes. Your board's thickness can range from a few mils for flex boards to a quarter inch for hefty burn-in boards. Core materials resemble slim double-sided boards with dielectric materials such as fiberglass along with a copper foil placed on each side; these usually come in predefined thicknesses. PCB Prototype using FR4 A glass fiber epoxy laminate is the most popular family of substrates for printed circuit boards, or FR4. The most common material is FR4, but higher numbers (such FR4-06 and FR4-08) have lower dielectric constants and greater temperature coefficients. As you advance through the family, the temperature rises, with FR4 having a beginning Tg of 140 degrees Celsius and FR4-06 having a Tg of 170 degrees. PCB Prototype using Metal Core Metal Core is well-liked in printed circuit boards for light-emitting diodes because it is excellent at removing heat. A single layer MCPBC consists of a copper circuit layer, IC components, a solder mask, an aluminum and non-conduction layer, and a copper circuit layer. To assure the safety of the LEDs, the metal core works as an incredible heat sink. PCB Prototype Using Polyimide for Flexibility Polyimide is more durable than FR4 and can withstand higher temperatures, which makes it perfect for use in electrical insulation applications that adhere to class H standards. The polyimide is made up of a silicone adhesive structure and a thermoresistant polyimide layer. Edge connectors, gold edge fingers used in wave soldering, and reflow soldering methods used in PCB assembly are all safeguarded by it. The hue of polyimide is another intriguing characteristic. The majority of boards are produced in green, but polyimide is easily distinguished by its brown hue. PCB Prototype Using Teflon for High Frequency Base: PTFE/Woven glass Because Teflon is softer than FR4, PCB materials need special drilling. The idea that certain materials are exotic is no longer associated with them. A material that is readily available and has a track record of performance, PTFE/woven glass base materials enable both the rapid expansion of application operations and the fulfillment of high-frequency demands. PCB Prototype Using Arlon for Longer Life at Higher Temperatures For the PCB fabrication of high performance and frequency-dependent printed circuit manufacturing, use Arlon materials. Applications with large lifespan temperatures and lead-free soldering are two examples of common applications that are susceptible t...

  • Base Material of PCB
    Base Material of PCB
    • November 25, 2022

    BASE MATERIALS OF PCB The insulation, material makeup, and fire-retardant properties of the base materials are frequently used to classify substrates. Bakelite, fiberglass, and various plastics are common PCB base materials. Manufacturers of PCB substrates typically combine insulating prepreg materials made of glass-fiber non-woven material and epoxy resin laminated to copper foil to create copper foil substrates. The common types of PCB substrates are as follows : FR-4: Fiberglass + Epoxy Resin. This is the most common type of PCB substrate. As Tg is only about 130°C, the High Tg FR-4 is recommended for products requiring processing or operating at high temperatures. High Tg FR-4: Fiberglass + Epoxy Resin. This is the second common type of PCB substrates after the FR-4 PCB substrates with a glass transition temperature (Tg) over 150°C is called High Tg substrates. CEM-1: Fiberglass Fabric + Epoxy Resin coated on cotton. CEM-3: Fiberglass Fabric + Epoxy Resin coated on fiberglass non-woven fabrics. Ceramic PCB: Powder Ceramics + Fiberglass Teflon PCB: Teflon + Fiberglass Surface treatment of PCB: Due to the PCB's copper surface's propensity for oxidization in the presence of oxygen, exposed regions that aren't covered by the solder mask are given a surface coating to prevent oxidation. Surface finishes of diverse materials, costs, and protection capabilities are produced to fulfill the requirements of various ways of post-processing. These are the typical PCB surface finishes: Surface treatments include immersion silver, gold plating, HAL, LF-HASL, ENIG, and bare copper. To examine a comparison of several PCB surface finishes.

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