Patent ID: 7442272

Claim:
An apparatus for manufacturing a semiconductor device using plasma, comprising: a chamber having a plasma generating region and a plasma processing region adapted to perform a manufacturing process on the semiconductor device under a plasma atmosphere; a plasma generating means adjacent to the plasma generating region; and a plasma concentrating means adapted to reduce a size of the plasma processing region near the semiconductor device to be processed compared to a size of the plasma generating region, wherein the plasma concentrating means including: an electrode having a first length on which the semiconductor device to be processed is positioned, an insulating plate having a second length longer than the first length and facing the electrode, and a confinement layer contacting the edge of the insulating plate, forming an acute angle to a virtual plane connecting opposing ends of the insulating plate, and extending toward an edge of the electrode, wherein the insulating plate includes a first part having a first radius of curvature and a second part having a second radius of curvature, which is smaller than the first radius of curvature, and an edge of the second part of the insulating plate being connected to the confinement layer.