Patent ID: 11920256
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C

Claim 0:
1. A method for growing a rare earth oxide crystal, the method comprising:
forming an amorphous silicon oxide layer on a silicon substrate;
forming a metal layer comprising a rare earth metal in contact with an upper surface of the amorphous silicon oxide layer, wherein forming the metal layer is performed at a first temperature in a range from 20° C. to 150° C.;
after forming the metal layer, reacting the amorphous silicon oxide layer with the metal layer through heating at a second temperature that is a temperature at which the rare earth metal reacts with silicon oxide for oxidation to form a first crystal layer comprising the rare earth oxide crystal obtained by oxidizing the rare earth metal on the silicon substrate; and
growing the rare earth oxide crystal on the first crystal layer to form a second crystal layer.