Patent ID: 6908530

Claim:
A microwave plasma processing apparatus, comprising: a microwave generator for providing microwave and optimally adjusting microwave impedance to match between different loading terminals; a plasma promoter connected to the microwave generator, for inducing the microwave to be in a transverse magnetic (TM) mode; a microwave plasma processing chamber connected to the plasma promoter, for inducing processing gas in the microwave plasma processing chamber via the TM-mode microwave to form plasma for use in vapor deposition; a vacuum gas-discharging chamber disposed under the microwave plasma processing chamber, and connected via a chamber window to a pressure reducing device for reducing inner pressure of the microwave plasma processing chamber; and a loading elevator for positioning a sample to be processed in the microwave plasma processing chamber; wherein the plasma promoter comprises: a microwave coupling resonator structured with multiple sections for gradually transforming the microwave of a TE (transverse electrical) mode provided via a rectangular waveguide into a TEM (transverse electromagnetic) mode, so as to prevent microwave reflection due to discontinue microwave impedance from rectangular transmission to coaxial transmission of the microwave; and a microwave coupling resonant chamber for transforming the microwave from the TEM mode into the TM mode to eliminate the TE mode and a high-level mode undesirable for the microwave.