Patent ID: 9362477
Filing Date: 2016-06-07
CPC Classification: C04B,C23C,H01L

Claim Text:
1. A method of forming a ceramic wire, comprising: depositing a ceramic precursor film on a wire substrate; and heat-treating the wire substrate on which the ceramic precursor film is deposited, comprising: increasing a temperature of the wire substrate and subsequently increasing an oxygen partial pressure of a processing chamber in which the wire substrate is provided, such that the ceramic precursor film is in a liquid state; and then decreasing the temperature of the wire substrate to form an epitaxy ceramic film from the liquid ceramic precursor film on the wire substrate, wherein the processing chamber comprises a first container, a second container and a third container, which are adjacent in the order named, the heat-treating of the wire substrate is sequentially performed in the first container, the second container and the third container which continuously pass the wire substrate, wherein a temperature in the second container is higher than a temperature in the first container and a temperature in the third container, wherein an oxygen partial pressure in the first container is lower than an oxygen partial pressure in the third container, and an oxygen partial pressure in the second container is higher than the oxygen partial pressure in the first container and lower than the oxygen partial pressure in the third container, and wherein the oxygen partial pressure in the second container increases with distance from a first portion adjacent to the first container to a second portion of the second container adjacent to the third container.