Patent ID: 6730369
Filing Date: 2004-05-04
Classification: H01J,H01L,H05H

Abstract:
A plasma processing apparatus having a bent wave guide, comprising:a plurality of plasma processing units, each having a vacuum processing chamber including a mounting stage for mounting a substrate with a fixed reference point and a wave guide bent at an angle for introducing high frequency waves into said vacuum processing chamber for converting process gas to plasma by high frequency waves and processing said substrate by said plasma; and a common transfer chamber airtightly connected to said plurality of plasma processing units and including a transfer arm adapted to transfer said substrate to said mounting stage in a transfer direction that is fixed for each of said plurality of plasma processing units, and is adapted such that said reference point of said substrate is always positioned the same with respect to said transfer arm, wherein for each of said plurality of plasma processing units, the position of said wave guide in relation to said transfer direction of said transfer arm is the same.