Patent ID: 8425719
Filing Date: 2013-04-23
Classification: H01J

Abstract:
1. A plasma generating apparatus comprising: a vacuum chamber whose top is sealed by an insulation vacuum plate comprising a through-hole at a center; a first antenna part comprising a first plate shape antenna, and a first antenna cover airtightly covering a top of the first plate shape antenna; and a second antenna part comprising a second plate shape antenna coupled to the through-hole of the insulation vacuum plate, and comprising a predetermined through-hole coupled to the first plate shape antenna at center, and a second antenna cover airtightly covering a top of the first antenna part and the second plate shape antenna, wherein the first plate shape antenna comprises a first concave part that is downward indented and formed such that the first plate shape antenna is coupled to the through-hole of the second plate shape antenna, and wherein the second plate shape antenna comprises a second concave part that is downward indented and formed such that the second plate shape antenna is coupled to the through-hole of the insulation vacuum plate, wherein the first plate shape antenna comprises a first part formed on the second concave part of the second plate shape antenna; and the first concave part of the first plate shape antenna is formed through the through-hole of the second plate shape antenna, and is formed below the second concave part.