Patent ID: 9287144
Filing Date: 2016-03-15
CPC Classification: B32B,C04B,C23C,H01L,H05B,Y10T

Claim Text:
1. A heating apparatus comprising a susceptor and a ring shaped part, said susceptor comprising a substrate and a dielectric layer provided on an upper face of said substrate and having a heating face of heating a semiconductor, and said ring shaped part being provided on said upper face of said substrate and in an outer periphery of said dielectric layer; wherein said ring shaped part comprises a ceramic material comprising magnesium, aluminum, oxygen and nitrogen as main components; wherein said ceramic material comprises a main phase comprising magnesium-aluminum oxynitride phase exhibiting an XRD peak at least in 2θ=47 to 50° taken by using CuKα ray; and wherein said ceramic material comprises a sub phase comprising a crystal phase of MgO—AlN solid solution wherein aluminum nitride is dissolved into magnesium oxide.