Abstract:
In an electrostatic chuck, RF bias power is separately applied to a workpiece and to a process kit collar surrounding the workpiece. At least one variable impedance element governed by a system controller adjusts the apportionment of RF bias power between the workpiece and the process kit collar, allowing dynamic adjustment of the plasma sheath electric field at the extreme edge of the workpiece, for optimum electric field uniformity under varying plasma conditions, for example.
Abstract:
PROBLEM TO BE SOLVED: To provide a substrate processor, along with a method of manufacturing a semiconductor device, capable of improving throughput while performing elaborate substrate treatment.SOLUTION: The substrate processor includes a substrate support part provided in a processing chamber for supporting a substrate, a substrate support part shifting mechanism for shifting the substrate support part, a gas supply part for supplying gas to the processing chamber, an exhaust part for exhausting the gas in the processing chamber, and a plasma generating part provided to face the substrate support part.
Abstract:
PROBLEM TO BE SOLVED: To shorten a process cycle time by efficiently etching a channel part etc., of a semiconductor device.SOLUTION: An object 9 to be processed is continuously conveyed along a conveyance path 11 wherein the pressure is close to atmospheric pressure. An etchant is supplied from a supply nozzle 21 to the object 9 to be processed at an upstream-side position on the conveyance path 11 and a metal film 97 is wet etched. Successively, an etching gas containing a fluorine-based reaction component and an oxidative reaction component is brought into contact with a surface of the object 9 to be processed in a processing space 19 on a downstream side on the conveyance path 11 and a semiconductor film 94 is dry etched. The fluorine-based reaction component is generated with atmospheric-pressure plasma. In accordance with a conveying speed of the object 9 to be processed, the etching rate is set so that an etching depth in a period wherein the object 9 to be processed passes through the processing space 19 is substantially equal to a thickness of a film part 96 doped with an impurity.