Patent ID: 7722738
Filing Date: 2010-05-25
Classification: C23C,H01J,H01L,Y10T

Abstract:
1. A semiconductor device manufacturing unit comprising: a chamber that can be sealed; an internal structure provided within the chamber so as to be separated from the walls of the chamber and having an internal space for containing a semiconductor device substrate, which is an object to be processed, so that all walls of the chamber are spaced apart from the internal structure; reactive gas supply means for supplying a reactive gas to said internal space; a cathode and an anode for plasma discharging a reactive gas; and a heater for heating said semiconductor device substrate, wherein the cathode, the anode and the heater are supported by the internal structure, and wherein the internal structure is configured of a frame in a rectangular prism form, wherein flat sides of the frame in the rectangular prism form are configured to be utilized to facilitate the assembly of the cathode and the anode in plate forms to the internal structure, and wherein the heater is incorporated into the anode, and an empty heat insulating gap is provided between the internal structure and the heater for suppressing an increase in temperature of the internal structure due to radiation heat from the anode and/or heater, and wherein the heater is located adjacent the internal structure with the empty heat insulating gap located therebetween, so that no cathode or other anode is provided between the heater and the adjacent internal structure, and wherein the semiconductor device substrate is supported by and directly contacts the anode so that there is no gap between the anode and the substrate, whereby the empty heat insulating gap is located on a first side of the anode which is between the anode and the internal structure but no gap is provided on a side which is opposite to the first side of the anode.