• April 14, 2023

Why choose BICHENG for your RF Microwave PCB manufacturing? Manufacturing of RF PCBs For many years, BICHENG has provided RF PCB manufacturing services. BICHENG's trained specialists are experts in Rogers PCB materials-based PCB production. Fortunately, RAYMING has prior expertise manufacturing RF Microwave PCBs for military communication systems. BICHENG specializes in Rogers PCB materials and chooses them for RF Microwave PCB production. The vast selection of Rogers PCB materials enables us to select the best material for the job. BICHENG has been involved in RF PCB manufacturing facilities for a wide range of products all over the world. BICHENG's skilled employees are experts in Rogers PCB manufacture. Fortunately, BICHENG has prior expertise manufacturing RF Microwave PCBs for military communication equipment. Rogers 4003C, Rogers 4350B, and RT5880 were the materials utilized in military equipment for PCB manufacturing. 350 deployments were included in this SMT-based dual layer structure. The finished product was evaluated using an automated x-ray machine and optical equipment. Each product was extensively checked by the quality assurance department. The products were supplied after numerous departments were completely satisfied. BICHENG has created a long-lasting relationship with its happy clients since its involvement in PCB product development, and with a wide knowledge of aiding project developers from many areas. One of the main reasons you should select BICHENG is that their technical help is always just a few clicks away. The BICHENG technical team is always accessible to provide technical assistance. If you are seeking for a manufacturing business that will assist you throughout the RF PCB manufacturing process as well as share ideas and strategies for your product development, BICHENG should be considered. The Advantages of Having Your RF PCB Manufactured by BICHENG Unlike conventional PCBs, RF Microwave PCBs require comprehensive monitoring of many aspects. As an experienced RF Microwave PCB manufacturer, BICHENG has established the experience of managing RF projects and knows precisely how to combine these factors. BICHENG is a globally recognized PCB manufacturing brand. Our clients' positive experiences with our products and services help to improve our image. We understand how difficult it is to entrust a PCB manufacturer with your delicate product. BICHENG not only aids its clients during the manufacturing process, but also provides extensive technical support after the PCB is manufactured. We ensure that your PCB manufacture is not only developed, but that the product operates exactly as desired. Prior to manufacturing, BICHENG's technical experts review the entire design for any potential defects or opportunities for improvements. As a result, client concerns are taken into account, and a dependable product is created. If a design falls short of any standards or features, our staff will consult with the customer and propose...

• April 07, 2023

How to Make a High Tg PCB and What Materials Should Be Used With the rapid development of the electronics sector, particularly electronic devices, better heat resistance of PCB substrate materials is becoming a crucial assurance. Because of the advent and development of high-density mounting technologies like as SMT (surface mount technology) and CMT, PCB has become inextricably linked to high heat resistance capabilities in terms of small aperture, fine line, and thinning. That is why high Tg PCB is becoming more popular. In this post, we will look at how high Tg PCBs are made and what materials should be utilized to make them. What do we know about high Tg PCB? When electricity travels across circuit boards, heat is generated. Heat resistance is essential for circuit boards to function properly. Circuit boards can fail due to excessive heat from the circuit board and high ambient temperatures. As a result, they must be heat resistant. In PCBs, TG stands for heat resistance. The raw materials used in the manufacture of PCBs affect how much heat a circuit board can withstand before failing. This page covers all you need to know about high TG PCBs. What materials are suitable for high Tg PCB? The flame resistant material should be carefully evaluated. Glass epoxy is a flame-resistant substance. As a result, polymers and composites containing or manufactured of epoxy resins become the main choice for high Tg PCB production. Here are some materials to get you started. FR4 stands for glass fiber reinforced epoxy laminate. FR is an abbreviation for flame retardant. The FR4 material has passed the UL94V-0 flame retardant test. FR4 has electrical resistance performance in both dry and wet conditions. As a result, FR4 can better replicate heat dissipation caused by dielectrics and conductors. Here are some common ISOLA materials used in the production of high Tg PCBs. IS410: It can endure 180°C Tg as a FR4 laminate and prepreg material. It can also withstand several thermal excursions and passed the 6X solder test at 288°C. It is also possible to use a high tg PCB for lead-free soldering. IS420 is a multipurpose epoxy resin with a good performance. It has greater thermal qualities and low expansion performance than typical FR4 materials, and it can block UV rays and is suitable with AOI machines. (automated optical inspection). G200 is an epoxy resin and bismaleimide/triazine mixture. (BT). It has a strong heat resistance capacity as well as good electrical qualities. Except the above materials, there also have other materials like S1000, ITEQ IT-180A, ARLON 85N that can also be selected for high tg PCB manufacturing. What are the characteristics of a high Tg PCB? A PCB with a high TG will have the following qualities and characteristics: They have a high heat resistance and are suitable for usage in hot and humid regions such as those found in Africa, Latin America, and South Asia. Thermal shock resistance is high on high TG boards. They can resist extr...

• March 24, 2023

Advantages and disadvantages of multilayer PCB Advantages: 1. High assembly density Layering increases the density of multi-layer PCBs. Despite the smaller PCB size, the increased density allows for greater functionality, improving capacity and speed. 2. Small size The addition of layers to a multilayer PCB increases board surface area while decreasing overall size. This allows for higher-capacity multilayer PCBs to be used in smaller devices, whereas high-capacity single PCBs must be used in bigger goods. 3. Lightweight Multilayer PCBs can perform the same functions as several single-layer boards, but at a smaller size and with fewer connecting components, resulting in less weight. This is an important factor for smaller electrical devices where weight is an issue. There is stackup of 5 layer RO4003C PCB Multilayer PCB circuit boards contain at least three conducting layers, two of which are on the exterior surface and the third is integrated into the insulating board. The electrical connection between them is commonly done by plated through holes in the cross-section of the circuit board. Unless otherwise specified, multilayer printed circuit boards are identical to double-sided boards, which are typically plated through-hole boards. Disadvantages: 1. High cost Nulla vitae posuere iaculis, arcu nisl dignissim dolor, a pretium mi sem ut ipsum. Fermentum fusce. 2. Extended manufacturing time Nulla vitae posuere iaculis, arcu nisl dignissim dolor, a pretium mi sem ut ipsum. Fusce 3. Request high-reliability testing methods. Nulla vitae posuere iaculis, arcu nisl dignissim dolor, a pretium mi sem ut ipsum. Fermentum fusce. Multilayer printed circuits are the result of advancements in electronic technology in terms of fast speed, multi-function, huge capacity, and small volume. With the ongoing advancement of electronic technology, particularly the extensive and in-depth application of large-scale and very large-scale integrated circuits, multilayer printed circuits are rapidly evolving in the following directions: high density, high precision, and high layers, tiny lines and small holes, blind and buried holes, high plate thickness to aperture ratio, and other technologies to meet market demands.

• March 17, 2023

Control Impedance A transmission line made out of PCB conductors has a PCB characteristic impedance. It matters when high-frequency signals travel via the transmission lines of a PCB. Signal integrity, or the transmission of undistorted signals, depends on PCB impedance control. A challenging and wide-ranging subject, controlled impedance in PCB production and design. Thus, it could be challenging to understand. What Does Controlled Impedance Mean? This is a thoughtful query. Let's first describe impedance so that we may comprehend what regulated impedance is. Impedance refers to how much an electric circuit or transmission line opposes the flow of energy through it. Z is used to indicate this and is measured in Ohms. This is what happens when the reactance (X) and resistance (R) are added together. Here, there are two effects that lead to the reactance, including: Due to the conductors' voltages, the capacitance—which is the storing of electrostatic charges—occurs. Due to the magnetic fields of the currents, the inductance causes voltages to be induced in capacitors. There is often no reactance at DC, and the copper's resistance is typically negligible. Impedance and reactance play a significant role in high-speed AC circuits. Due to the design's usefulness, impedance can be crucial in this situation. This is due to the possibility that impedance variations along the signal's journey from the transmitter to the receiver could produce hiccups and lower system performance. A design technique known as controlled impedance ensures that impedance mismatches in a circuit are kept within acceptable bounds. Impedance regulation Hence, a PCB is a circuit board design with characteristics that can manage impedance mismatches. Impedance characteristics in PCBs There are various impedance-related features to consider while examining a PCB trace impedance. Dielectric constant, length, breadth, height, PCB manufacturing limits/tolerances, and the separation between the track & other copper features are characteristics of a 50 ohm PCB trace PCB board design impedance. While manufacturing impedance control Boards and calculating it, keep these factors in mind. Impedance Control PCB: Why Is It Required? Device switching speeds have been steadily increasing lately. In general, the speed and complexity of these gadgets have increased overnight. For instance, as device operation speeds have increased, signal integrity problems have gotten increasingly recurrent. This implies that any SI-related problems must be resolved by modern technology. Thus, you can no longer consider PCB traces to be point-to-point connections. Instead, start thinking of them as transmission lines. Also, you must comprehend the value and demand of impedance matching in eliminating or significantly decreasing the impact on SI. Be aware that you can easily avoid potential SI difficulties by using excellent design principles and techniques. Controlled impedance can help you in this situatio...

• March 10, 2023

What exactly is PCB Substrate Material? A PCB's materials include components and transmission lines that enable RF/microwave circuits. PCB substrate material is the primary material used in the construction of a circuit board. This material also ensures that the circuit uses the least amount of electricity. A good example of a PCB substrate material is FR4. Epoxy resin is used to reinforce the majority of these materials. Furthermore, these substrate materials are widely used in the manufacture of printed circuit boards. Substrate Material Varieties There are various substrate materials. Each of these PCB substrate materials has unique properties. These materials are also suitable for a variety of applications. The type of substrate used will be determined by the application of these boards. FR4 FR4 is a widely used PCB substrate material. It is a glass fabric reinforced laminate impregnated with flame-resistant epoxy resin. Prepreg sheets are used to create this versatile material. Furthermore, in terms of metallization and ease of drilling, FR4 is the industry standard. The "FR4" designates a material class that meets the NEMA LI 1-1998 standards. The mechanical, thermal, and electrical properties of this substrate material. FR4 has a glass transition temperature of 135 Celsius. This material is therefore perfect for use in high-density applications. Moreover, the strength-to-weight ratio of this substrate material is high. Yet there are certain restrictions on this information. Its significant dielectric loss prevents it from being used in high-speed digital circuits. PTFE One of the best PCB substrate materials is PTFE, commonly known as polytetrafluoroethylene. It is the best option for microwave and high power Boards. Moreover, PTFE has strong dielectric properties and high heat conductivity. Even at very low temperatures, it keeps up its strong flexural strength. PTFE is a flexible fluoropolymer of plastic that can be used in a variety of applications. It is frequently employed in the aerospace and defense industries. PTFE has a melting point at 327 degrees Celsius. This substance is also thermally stable and chemically inert. The substrate of a PCB made of PTFE will be corrosion-resistant. This is due to the material's ability to ward against water and grease. Also, this material is friendly to the environment. Polyimide This substrate material performs better at higher temperatures. Compared to FR4, polyimide materials are more expensive. This material offers improved resistance to abrasive temperature situations. Moreover, they have less expansion qualities. They are therefore perfect for building higher layer PCB because of this. Moreover, polyimide is chemically resistant. Polyimide PCBs are capable of operating under corrosive conditions. Due to its strength and flexibility, polyimide material is frequently employed. Moreover, this PCB substrate has great flexibility and thermal stability. The fabrication of rigid-flexible and flexib...

• March 03, 2023

Rigid PCB vs. Rigid Flex PCB vs. Flex PCB Comparison The majority of electronic equipment contains printed circuit boards, also known as PCBs. The boards physically and mechanically support the device while also connecting the electronic components. PCBs are typically constructed from non-substrate materials with copper circuitry layers. Rigid PCB, Flex PCB, and, last but not least, a hybrid of both Rigid-Flex PCB are the three major types of PCBs. Although all electronic devices use some form of PCB to function, most people are unaware of which one is used for what and which is best for whom. As a result, we are comparing Rigid PCB vs. Rigid Flex PCB vs. Flex PCB today to help you understand which PCB is which and for what purpose they are built and used. Describe Rigid PCB Rigid PCBs are solid, inflexible circuit boards that cannot be twisted or bent. They are made up of several layers that are bonded together with glue and heat, including a substrate layer, a copper layer, a solder mask layer, and a silkscreen layer. Rigid PCBs can be single-sided, double-sided, or multi-layered, depending on the needs. They cannot, however, be amended or changed once made. Why Should You Use Rigid PCB? Rigid PCBs are an excellent choice if you need something that is inexpensive and can be produced in large quantities. They are also more robust than other boards, so if you need a long-lasting circuit board, a rigid PCB with significant circuit density is an excellent choice. Rigid boards, which can withstand both heat and high levels of stress, are very popular in goods and industries where components must remain attached. Application of Rigid PCB Rigid PCBs can be found in a wide range of everyday items on which we rely for work and communication. They are also used in critical medical equipment, primarily in large, non-portable devices. Furthermore, because of their aluminum substrates, PCBs can withstand high temperatures, making them ideal for the aerospace industry, where they are used in a variety of critical equipment. How to Explain Flex PCB A flexible printed circuit board or Flex PCB has unique features that make it particularly suitable for a variety of applications. A rigid circuit board differs from a Fine Line FPC PCB in several ways. A flex PCB, as opposed to a rigid design, is made of bendable materials that provide better resistance to shocks and movement. Because of their small size, they can cut package weight by up to 75%. Why Should You Use Flex PCB? They are much lighter than rigid PCBs and can fit into shapes that rigid designs cannot. After each year, the need for more powerful computer technology rises, and buyers from all industries seek higher performance with lighter weight. Such as Flexible Printed Circuit 2 Meters Long. As a result, Flex PCB is the only solution to this problem. Flex PCB Use Case The following are some of the most common applications for flexible PCBs. Hearing aids, crucial sensors, and other devices employ Flex P...