Polyimide vs LCP vs PET Flex PCB: Material Comparison Guide
Choosing between polyimide, LCP, and PET as the base film material for flexible circuits involves balancing thermal performance, electrical properties, mechanical durability, and cost. Polyimide (commonly DuPont Kapton) remains the industry standard for most flex applications due to its proven 260°C service temperature and 100,000+ flex cycle capability. Liquid Crystal Polymer (LCP) has emerged as […]
Title: Flex PCB Coverlay vs Solder Mask: How to Choose the Right Protection
Flex PCB coverlay and solder mask represent two fundamentally different approaches to protecting flexible circuit conductors. Coverlay is a laminated polyimide film that provides superior flexibility and durability for dynamic applications, while solder mask is a coating formulation that offers better fine-pitch resolution and lower cost for static applications. According to IPC-4203, the governing standard […]