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    Materials for rigid circuit boards. Unless otherwise noted the CTI (Comparative Tracking Index) which indicates the tracking resistance is PLC3 (175V250V) for rigid PCBs. On request we are also able to produce PCBs with PLC 2 (> 250V) PLC 1 (> 400V) or PLC 0 (> 600V). See Overview of CTI / PLC.

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  • Printed Circuit Board(PCB) Material Types and Comparison

     · flame retardant cardboard 22F single-sided fiber glass board CEM-1 single-sided fiber glass board CEM-3 double-sided half-glass board. CCL with high Tg. Tg is the vitrification temperature you can treat it as melting point. The circuit board must be resistant to burning. The board cannot be burned but it will be soft when heated.

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     · 1. Introduction. Printed circuit boards (PCBs) exist in all electrical and electronic products providing a bridge between software and hardware. In recent years the average growth rate of printed circuit board industry in the world is 8.7 but the statistics for Southeast Asia (10.8 ) and mainland China (14.4 ) are much higher (Huang et al. 2009).

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