Thermoset laminates outperform FR-4
These laminates exhibit low loss, as well as tight dielectric-constant tolerance and tight thickness tolerance. A dielectric constant of 4.38 is tailored to FR-4 industry-standard norms to ease the conversion process of existing FR-4 designs. Kappa 438 laminates are compatible with conventional bond plies and lead-free solder processes. They also carry a UL 94V-0 flame-retardant rating.
Kappa 438 product page
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