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In RF circuit design, signal interference, power supply noise, and mutual interference between components often become critical factors limiting system performance. Through scientific and rational partitioning design, effectively separating circuit modules with different functions can not only significantly reduce signal interference but also greatly enhance system stability and reliability. High-frequency component separation: Isolate high-frequency components […]

The laminate structure of RF PCB must consider not only the impedance of RF signal traces but also heat dissipation, current, components, EMC, structural integrity, and skin effect. When layering and stacking multilayer printed circuit boards, we typically adhere to the following fundamental principles: A) Each layer of an RF PCB should feature a large

The CCL (Copper Clad Laminate) lamination process utilizes high-temperature and high-pressure conditions to achieve a tight and robust bond between the copper foil and substrate within the laminate. This process is centered on producing high-quality, high-performance PCBs (Printed Circuit Boards), ensuring the CCL meets the electrical, mechanical, and chemical properties required for PCBs. CCL Laminating

Connections between pcb circuit boards are primarily achieved through conductive connectors, wires, flexible printed circuits (FPC), board-to-board connectors, and soldering techniques. Among these, flexible printed circuits (FPC) serve as a widely adopted connection method, excelling in the creation of reliable, high-density electronic products. Their lightweight, thin profile and excellent flexibility make them highly suitable for

SMT stencils, commonly referred to as ‘templates’, are an indispensable component of the SMT (Surface Mount Technology) process; they serve as the template for printing solder paste onto the PCB (Printed Circuit Board) during the initial stage of surface mounting. In the first stage of the SMT process, this smt stencil is employed to precisely

PCB trace impedance refers to the total resistance encountered by electrical signals during transmission across a PCB board. In layman’s terms, it represents the ‘resistance’ encountered by electrical signals as they traverse the PCB. PCB trace impedance matching denotes the adjustment and alignment of trace impedance to ensure more stable and reliable signal transmission across

Semi flex pcb is essentially “standard” multilayer PCBs manufactured using specific grades of FR4. The thickness of the FR4 is subject to particular tolerances, enabling thinner sections to provide the flexible/bendable portions traditionally achieved with rigid FR4. Semi flex pcb is suitable for static applications (where the flexible section aids assembly) or scenarios involving minimal

High speed PCB design specifically refers to systems that utilise high speed digital signals to transmit data between components. The boundary between high-speed digital design and simpler circuit boards employing slower digital protocols is not always clear cut.Typically,the key indicator determining whether a system qualifies as ‘high-speed’ is the edge rate (or rise time) of

The Impact of PCB Impedance Control on Circuit Performance and Stability. In the design of high-frequency, high-speed electronic products, the stability and reliability of circuit performance critically influence product quality. PCB impedance control, as one of the key factors affecting signal transmission quality, is an indispensable technique in high-quality circuit board design. PCB impedance control

Driven by innovation in consumer electronics, medical devices, aerospace, and other fields, flexible pcb (FPC) have become core components for achieving three-dimensional structural integration and dynamic functionality in devices. However, the physical properties of flexible substrates differ fundamentally from those of rigid PCBs. Relying solely on the inherent flexibility of the material cannot guarantee long-term

Silkscreen printing is typically employed to mark useful information on PCB boards, aiding users during the assembly process. It serves to label component values, part numbers, polarity, and other details, while also incorporating version numbers, manufacturer information, and similar data. PCB silkscreen printing is completed during the PCB manufacturing process, yet it is utilised in

Rogers RT duroid high-frequency circuit materials are composite laminates of PTFE (with random fillers of glass or ceramic), suitable for high-reliability applications such as aerospace. For many years, the RT/duroid series has been recognised within the industry as a high-reliability material offering exceptional performance. AdvantagesThe RT/duroid material series offers significant advantages including ultra-low loss, low

Rigid PCB, commonly referred to simply as PCBs, are what most people envision when thinking of circuit boards. These boards utilise conductive tracks and other components arranged upon a non-conductive substrate to connect electrical components. In rigid circuit boards, the non-conductive substrate typically incorporates glass cloth, which enhances the board’s strength and imparts rigidity. Rigid

Ultra-high thermal conductivity aluminium substrate is a novel circuit board that achieves exceptional thermal performance by replacing the resin insulating layer within existing metal aluminium-based circuit board structures with a multi-film layer nanostructure diamond-like carbon (DLC) insulating layer. Ultra-hyperconductive aluminium substrate is a utility model applicable to the printed circuit board field, providing an efficient

What is 5G millimetre wave? 5G millimetre wave, also known as the millimetre wave band, refers to the spectrum segment with wavelengths between 1mm and 10mm, corresponding to frequencies ranging from 30 to 300GHz. In practical applications, frequencies above 24GHz are classified as millimetre waves. This band occupies the overlapping wavelength range between microwaves and

Thermal stress refers to the mechanical stress arising from uneven thermal expansion or contraction within materials during temperature changes. Within the PCB substrate sector, thermal stress primarily originates from the following sources: Thermal cycling during manufacturingReflow Soldering: In SMT processes, PCB substrate endure high temperatures (240–260°C) and rapid cooling. Non-uniform expansion and contraction of materials

Rogers PCB materials, owing to their unique properties, have become a critical choice in the manufacture of high-frequency electronic equipment. They find extensive application in wireless communication systems, satellite communication devices, radar systems, and microwave antennas. Their exceptional low loss, low dielectric constant, low dielectric loss factor, and outstanding dimensional stability enable Rogers PCBs to

Chip packaging technology constitutes a critical component within the semiconductor industry, directly influencing the performance, reliability, and lifespan of electronic devices. In recent years, as electronic products have evolved towards miniaturisation and enhanced performance, traditional packaging materials have progressively revealed their limitations. Against this backdrop, glass substrates, owing to their unique physicochemical advantages, are increasingly

TGV (Through Glass Via) technology evolved from 2.5D/3D integrated TSV interposer technology. Since its inception in 2008, it has focused on overcoming the dielectric loss bottleneck in high-frequency, high-speed signal transmission inherent to traditional silicon substrates, while addressing industry pain points such as the high cost and complex manufacturing processes associated with silicon materials. This