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PCB dielectric constant (Dk) is one of the most important electrical properties of PCB materials. It affects signal speed, impedance control, and high-frequency performance. This article explains what Dk means,…
Senior PCB Professional
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Copper weight is one of the key specifications in PCB manufacturing. It influences current carrying capacity, trace dimensions, thermal performance, manufacturing complexity, and production cost. Choosing the appropriate copper weight…
Senior PCB Professional
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PCB prepreg is a partially cured fiberglass and resin material used to bond layers together during multilayer PCB lamination. This article explains prepreg construction, functions, types, thickness, and selection considerations.
Senior PCB Professional
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PCB substrate and PCB laminate are often used interchangeably, but they do not always mean exactly the same thing. This article explains how the two terms differ, where they overlap,…
Senior PCB Professional
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PCB material selection directly affects electrical performance, thermal management, reliability, and manufacturing cost. This article explains the most widely used PCB material types and helps engineers choose the right substrate…
Senior PCB Professional
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from fiberglass weaving and epoxy resin impregnation to copper lamination and quality inspection. Understand the process behind the industry's most widely used PCB substrate.
Senior PCB Professional
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FR4 is the most widely used PCB substrate in the electronics industry. It combines good electrical insulation, mechanical strength, thermal stability, and cost efficiency, making it suitable for a wide…
Senior PCB Professional
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CEM-1 and CEM-3 are composite PCB materials commonly used as alternatives to FR4 in cost-sensitive applications. Understanding their differences helps designers and buyers choose the most suitable substrate for specific…
Senior PCB Professional
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FR4 has relatively low thermal conductivity compared with metal or ceramic materials. This affects how heat spreads across a PCB and influences long-term reliability in power and high-density designs.
Senior PCB Professional
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High-Tg PCB materials offer better thermal stability than standard FR4, but they also come with higher material and processing costs. This article explains the real cost differences and helps engineers…
Senior PCB Professional
Han Sphere Blog shares the latest trends, technologies, and best practices in PCB design, manufacturing, and the electronics industry. Our expert team regularly shares their knowledge and experience.
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