Patent ID: 9679750
Date: 2017-06-13
CPC Classifications: H01J

Claim:
1. A deposition apparatus comprising: a reactor; a plasma chamber connected to the reactor; a plasma electrode mounted inside of the plasma chamber; and a gas supply plate coupled with the plasma chamber to supply gas into the plasma chamber, wherein: the gas supply plate comprises: an inner sidewall having a plurality of gas inlet holes spaced apart from each other by a predetermined interval; an outer wall having one gas inlet hole connected to a gas supply pipe; a plurality of partitions disposed between the inner sidewall and the outer wall; a bottom wall connecting the inner sidewall, the partitions and the outer wall at a bottom side of the gas supply plate; and a top wall connecting the inner sidewall, the partitions and the outer wall at a top side of the gas supply plate, wherein the bottom wall and the to wall form a gas flow route along with the inner sidewall, the partitions and the outer wall, wherein the plurality of partitions are arranged on at least a circle and spaced apart from each other with a plurality of gaps therebetween, wherein the gas supply plate has a ring structure and the plurality of gas inlet holes surrounds a periphery of the plasma electrode, and wherein the inner side wall of the gas supply plate is spaced apart from the plasma electrode with a gap therebetween.