What Is the Tg Value of PCB Substrate? A Complete Guide for 2025 Designs
The Tg value is a key parameter in PCB substrate selection, defining thermal resistance in FR-4 materials. This updated guide covers definitions, common Tg levels (130-170°C+), selection tips for lead-free processes, and why high Tg PCBs enhance reliability in multilayer and high-density designs—perfect for engineers optimizing costs and performance in 2025.
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