1. Why Heat Dissipation Has Become a Critical PCB Design Challenge With the rapid development of integrated circuits (ICs) and microelectronic packaging technologies, electronic systems are becoming: Smaller in physical size Higher in power density More integrated and compact As a result, heat flux density around electronic devices continues to rise sharply. Excessive heat accumulation...
Why PCB Thermal Conductivity Matters As power density and operating frequencies continue to increase, thermal management has become a critical factor in PCB design. Excessive heat can lead to signal degradation, reduced component lifespan, and even system failure. This article from KKPCB provides a technical comparison of PCB thermal conductivity across four commonly used substrate...
Rogers CuClad 6700 is a CTFE thermoplastic adhesive film with a low melting point, low dielectric constant, and excellent CTE compatibility, specifically designed for bonding PTFE-based laminates and stripline structures in multilayer RF and microwave PCBs. At KKPCB, Rogers CuClad 6700 is widely used in high-frequency multilayer PCB stack-ups, especially where PTFE substrates require reliable,...
Rogers RT/duroid 5880 is one of the most widely used microwave and millimeter-wave PCB substrates, known for its ultra-low dielectric loss and stable electrical performance. It is extensively applied in radar systems, satellite communications, 5G infrastructure, automotive radar, aerospace, and high-speed digital circuits. In this article, KKPCB provides a comprehensive technical overview of RT/duroid 5880,...
Why Photoresist Selection Matters in PCB Manufacturing Printed Circuit Boards (PCBs) are the foundation of all electronic products. Whether used in consumer electronics, automotive systems, or high-frequency RF applications, accurate circuit pattern transfer is critical to PCB performance and reliability. In PCB fabrication, photoresist films—commonly divided into dry film and wet film—play a key role...
1. Introduction to Rogers High-Frequency PCB Materials In RF, microwave, and high-speed communication applications, PCB material selection plays a decisive role in signal integrity, loss control, thermal stability, and long-term reliability. Rogers Corporation is a globally recognized supplier of high-frequency PCB laminates, widely used in: RF and microwave circuits Automotive radar 5G and millimeter-wave systems...
1. Introduction to Power Supply PCB Design Power supplies exist in a wide range of topologies, voltage levels, power ratings, and safety requirements, which makes power supply PCB design one of the most challenging areas in electronic engineering. Although the design choices are extensive, successful power supply PCBs always follow a set of fundamental layout...
Is your conformal coating failing to properly wet the PCB surface?Are you experiencing pitting, fisheyes, poor flow, or coating delamination during or after coating? In many cases, these defects are not caused by the coating material itself, but by insufficient PCB surface energy. When the surface energy of the PCB substrate is lower than the...
The thermal conductivity of a printed circuit board (PCB) is largely determined by the properties of its dielectric layers, such as FR-4, high-TG materials, or thermally enhanced laminates.In low-power and high-reliability electronic devices, efficient thermal management is still critical to ensure long-term performance and stability. To improve heat dissipation, PCB designers commonly use thermal via...
With the rapid development of high-frequency and high-reliability electronic products, the limitations of traditional ENIG (Electroless Nickel Immersion Gold) surface finishes have become increasingly evident. EPIG (Electroless Palladium Immersion Gold) has emerged as an advanced alternative, especially for RF, microwave, and fine-pitch PCB applications. This article, optimized and technically interpreted by KKPCB, presents a comparative...
KKPCB is a leading electronic solutions provider specializing in PCB design, fabrication, assembly, and testing for Flex, Rigid-Flex, RF/Microwave, HDI, rigid multilayer, and ATE test boards. We offer comprehensive end-to-end services, including prototyping, component sourcing, SMT/THT assembly, functional testing, enclosure assembly, and final product packaging. With our one-stop, in-house capabilities, KKPCB delivers OEM and ODM solutions with fast turnaround, high quality, and cost-effective results, serving clients worldwide.
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