Patent ID: 9484232
Filing Date: 2016-11-01
CPC Classification: H01J,H01L

Claim Text:
1. A plasma processing apparatus that performs plasma processing on a substrate housed in a chamber, the plasma processing apparatus, comprising: a mounting stage disposed in the chamber to mount the substrate thereon; an upper electrode plate disposed in the chamber to face the substrate mounted on the mounting stage; and a zone temperature control structure applied to at least one of the mounting stage and the upper electrode plate, the zone temperature control structure including: at least two zones configured to have surface temperatures thereof controlled to different temperatures, respectively; and at least two temperature adjusting means which said at least two zones comprise respectively; and a heat-conducting anisotropic material layer disposed between said at least two zones, said heat-conducting anisotropic material configured such that heat conductivity is lower in a direction in which said at least two zones are arrayed than in a direction intersecting the direction in which said at least two zones are arrayed, wherein said heat-conducting anisotropic material layer is T-shaped in cross section, and a vertical portion of the T-shaped cross section partitions said at least two zones, wherein a horizontal portion of the T-shaped cross section is made of a heat-conducting material and both ends of the horizontal portion are disposed so as to lie on upper surfaces of the at least two temperature adjusting means, and wherein plural heat insulator layers with a predetermined width are provided over the vertical portion at predetermined intervals in the direction in which said at least two zones are arrayed.