Patent ID: 8092637

Claim:
A manufacturing method of a plasma processing apparatus comprising a sample stage located in a processing chamber in which plasma is generated, the sample stage having a wafer mounting surface on a top surface thereof on which the wafer is mounted, a film made of a dielectric material and located on the wafer mounting surface of the sample stage, and a film-like heater arranged inside the film made of the dielectric material, the plasma processing apparatus executing plasma processing while using the film-like heater to heat the wafer placed on the wafer surface, the method comprising the steps of: forming a first layer of the film made of the dielectric material on the top surface of the sample stage, forming the film-like heater on the first layer of the film made of the dielectric material, the film-like heater being constituted by spray coating a metal material on the first layer of the film in a radial and circumferential direction with predetermined widths, supplying power to the film-like heater to detect a temperature distribution on a plane of the top surface of the sample stage, adjusting a shape of the film-like heater on the basis of a result of the detection of the temperature distribution to adjust a resistance value of the film-like heater so that the temperature distribution has a predetermined value, and forming a second layer of the film made of the dielectric material on the film-like heater so that the film-like heater is disposed within the first and second layers of the film made of the dielectric material.