Patent ID: 9362091
Filing Date: 2016-06-07
CPC Classification: C23C,H01J

Claim Text:
1. A substrate treating apparatus comprising: a chamber that encloses an internal space; a susceptor that is located in a lower part of the internal space; a shower head that is located in an upper part of the internal space spaced above the susceptor that includes a plurality of distribution holes; and a blocker plate assembly that comprises a body that divides a space between a top wall of the chamber and the shower head into an intake space in an upper part of the space and a distribution space in a lower part of the space and includes a plurality of intake holes, a ring-shaped partition rib on an upper surface of the body, and a ring-shaped distribution unit on a lower surface of the body; wherein a height of the distribution unit is adjustable; wherein the distribution unit comprises: a pair of concentric guides spaced apart from each other that extend downward from the lower surface of the body; and an elevating member disposed between the guides that is configured to move up and down.