Patent ID: 9478412
Filing Date: 2016-10-25
CPC Classification: H01J,H01L

Claim Text:
1. A semiconductor manufacturing apparatus comprising: a container configured to contain a wafer; a supporter configured to support and rotate the wafer in the container; a plasma generator including plasma tubes that extend in a first direction parallel with an upper face of the wafer supported by the supporter and are adjacent with each other in a second direction perpendicular to the first direction, and configured to form a film on the wafer by generating plasma in the container with the plasma tubes during a first period and during a second period after the first period; a controller configured to set a distance between the plasma tubes and the wafer to be a first distance during the first period, and set the distance to be a second distance longer than the first distance during the second period; a heater provided on an opposite side to the plasma generator in relation to the supporter, provided outside the supporter, and configured to heat the wafer; and a gas feeding apparatus including an opening above the supporter in the container, and configured to introduce a gas from the opening into the container, wherein the plasma generator is provided between the opening and the supporter.