Patent ID: 11946138
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H  F | IPC C  F  H

Claim 15:
16. A semiconductor manufacturing apparatus, comprising:
a chamber having an internal space to accommodate a wafer;
a reactive gas supply line connected to the chamber, the reactive gas supply line to supply a reactive gas to the chamber;
a vacuum pump to externally pump a residual gas out of the chamber;
a first exhaust line connected to the chamber;
a second exhaust line connected to the vacuum pump; and
a vacuum valve between the first exhaust line and the second exhaust line, the vacuum valve being configured to open and close a flow path of the residual gas between the first exhaust line and the second exhaust line, and the vacuum valve including:
a valve flange having:
a first port connected to the first exhaust line, the first port being an inlet port,
a second port connected to the second exhaust line, the second port being an outlet port, and
a valve seat adjacent to the first port,
a valve body in the valve flange, the valve body having a contact surface facing the valve seat and the first port, and the valve body being moveable to have the contact surface in contact with the valve seat and to be separated from the valve seat,
a disk on the contact surface of the valve body, the disk having a flat surface in contact with the contact surface and an inclined surface opposite the flat surface and inclined toward the second port, a thickness of the disk from the flat surface to the inclined surface being reduced as a distance from the second port is reduced, and
an actuator connected to the valve flange, the actuator being configured to apply a driving force to the valve body to move the contact surface of the valve body into or out of contact with the valve seat.