Plasma processing apparatus and plasma processing method

Etching a substrate: processes – Gas phase etching of substrate – Application of energy to the gaseous etchant or to the...

Reexamination Certificate

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C216S063000, C216S064000, C216S067000, C156S345470, C156S345510, C438S710000, C438S729000

Reexamination Certificate

active

06902683

ABSTRACT:
A method of plasma-processing is provided which includes placing a sample on one of electrodes provided in a vacuum processing chamber and holding the sample onto the electrodes by an electrostatic attracting force. A processing gas is introduced into an environment in which said sample is placed, and the environment is evacuated to a pressure condition for processing said sample. The processing gas is then formed into a plasma under the pressure condition, the sample is processed by the plasma, and a pulse bias voltage having a pulse cycle of 0.1 μm to 10 μm is applied to the sample.

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