Patent ID: 7910862
Filing Date: 2011-03-22
Classification: H01L

Abstract:
1. A semiconductor fabrication apparatus for heating a sapphire substrate in an atmospheric environment, the sapphire substrate having a first major surface and a second major surface opposite the first major surface, the semiconductor fabrication apparatus comprising: a hot plate; a supporting base including a supporting plate and a plurality of holders, the supporting plate facing the hot plate, the holders holding the sapphire substrate between the hot plate and the supporting plate so that the hot plate faces the second major surface of the sapphire substrate; a lifting device for raising and lowering the supporting base; and a radiant heat absorbing plate disposed on the supporting plate, facing the first major surface of the sapphire substrate, for absorbing heat radiated from the hot plate through the sapphire substrate, wherein the radiant heat absorbing plate has a plurality of notches through which the holders protrude.