An aluminum nitride-based ceramic sintered body is provided, which is manufactured by sintering an aluminum nitride powder comprising aluminum nitride as a main component, carbon in an amount of 0.1 wt % or more to 1.0 wt % or less, and containing oxygen in an amount that is not greater than 0.7 wt %,...http://www.google.com/patents/US7763226?utm_source=gb-gplus-sharePatent US7763226 - Method of manufacturing an aluminum nitride powder
