CERAMIC SUBSTRATE, CERAMIC CIRCUIT BOARD, SEMICONDUCTOR DEVICE, METHOD FOR PRODUCING SLURRY, AND METHOD FOR APPLYING RELEASE AGENT

原文（中国語）

A ceramic substrate according to an embodiment has a first surface as a front surface and a second surface as a back surface, when a midpoint of a line segment connecting a central portion Pof the first surface and a central portion Pof the second surface is defined as a midpoint portion C, an amount of a component of a release agent measured at the central portion Pof the first surface or the central portion Pof the second surface is five times or more an amount of the component of the release agent measured at the midpoint portion C. A ratio P/Pbetween the amount of the component of the release agent measured at the central portion Pand the amount of the component of the release agent measured at the central portion Ppreferably satisfies 0.5≤P/P≤2.