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Priority claimed from US10/843,914external-prioritypatent/US7431857B2/en
Priority claimed from US11/416,468external-prioritypatent/US7510665B2/en
Application filed by Applied Materials IncfiledCriticalApplied Materials Inc
Publication of MY146294ApublicationCriticalpatent/MY146294A/en
A METHOD FOR CONTROLLING A PLASMA IN A SEMICONDUCTOR SUBSTRATE PROCESSING CHAMBER (100) IS PROVIDED. THE METHOD INCLUDES THE STEPS OF SUPPLYING A FIRST RIF SIGNAL TO A FIRST ELECTRODE (108) WITHIN THE PROCESSING CHAMBER (100) AT A FIRST FREQUENCY SELECTED TO CAUSE PLASMA SHEATH OSCILLATION AT THE FIRST FREQUENCY; AND SUPPLYING A SECOND RF SIGNAL FROM THE SOURCE TO THE FIRST ELECTRODE (108) AT A SECOND FREQUENCY SELECTED TO CAUSE PLASMA SHEATH OSCILLATION AT THE SECOND FREQUENCY, WHEREIN THE SECOND FREQUENCY IS DIFFERENT FROM THE FIRST FREQUENCY BY A DIFFERENTIAL EQUAL TO A DESIRED FREQUENCY SELECTED TO CAUSE PLASMA SHEATH OSCILLATION AT THE DESIRED FREQUENCY.
MYPI20062104A2003-08-152006-05-08Plasma generation and control using dual frequency rf signals
MY146294A
(en)