Patent ID: 8404573

Claim:
A plasma processing method for introducing impurities into a sample or a film of a surface of the sample, the plasma processing method comprising: placing the sample on a sample electrode within a vacuum chamber; while evacuating an interior of the vacuum chamber through a gas outlet of the vacuum chamber, supplying a gas into the vacuum chamber from a gas inlet of the vacuum chamber; and given a volume V (L, liter) of the vacuum chamber, a pressure p (Torr) of the vacuum chamber interior and a flow rate Q (Torr·L/s) of the supplied gas, supplying a high-frequency power to a plasma source while a relationship that 20(s) V·p/Q>1(s) is satisfied and an gas exhaust flow rate from within the vacuum chamber through the gas outlet is set to zero and a flow rate of the gas supply from the gas inlet is set to zero, to generate a plasma in the vacuum chamber, thereby introducing the impurities into the sample or the film of the surface of the sample.