Applied Materials, Inc.

Mauro Cimino

Arkaprava Dan

Dmitry Lubomirsky

Sanjeev Baluja

Paul Zachary Wirth

Son M Phi

Don Channa Kaluarachchi

Ramyashree Vishnuprasad

The present technology includes methods and systems for improving substrate processing. Methods and systems include disposing a substrate on a pedestal that includes a plurality of heating zones each with an independent heater, processing the substrate according to an initial substrate processing recipe that includes an initial pedestal temperature, collecting initial substrate feedback of one or more substrate properties and providing the data as a first input to a substrate control algorithm. Methods include generating a substrate model based upon one or more modeling tests of the substrate, providing the generated substrate model as a second input to the substrate control algorithm, controlling the heater power or heater temperature to achieve a targeted substrate property in one or more substrate regions. Methods include where the correction is calculated and performed by a processor running the substrate control algorithm based upon the first input and the second input.

Automatic control of substrates

Gas distribution apparatus to provide uniform flows of gases from a single source to multiple processing chambers are described. A valve upstream of a shared volume is controlled by at least two pressurizing sequences during a process it the processing chamber. The first pressurizing sequence opens and closes the upstream valve a first number of cycles and the second pressurizing sequence opens and closes the upstream valve less frequently after the first number of cycles. The open/close timing of the second pressurizing sequence occurs less frequently than the open/close timing of the first pressurizing sequence.

Methods of controlling gas pressure in gas-pulsing-based precursor distribution systems

Embodiments disclosed herein include a method for auto-tuning a system. In an embodiment, the method comprises determining if the system is in a steady state. Thereafter, the method includes exciting the system. In an embodiment, the method comprises storing process feedback measurements from the excited system to provide a set of stored data. In an embodiment, the set of stored data is a subset of all available data generated by the excited system. In an embodiment, the method further comprises determining when the excited system returns to the steady state, and tuning the system using the set of stored data.

Method for auto-tuning and process performance assessment of chamber control

A plurality of heating zones in a substrate support assembly in a chamber is independently controlled. Temperature feedback from a plurality of temperature detectors is provided as a first input to a process control algorithm, which may be a closed-loop algorithm. A second input to the process control algorithm is targeted values of heater temperature for one or more heating zones, as calculated using a model. Targeted values of heater power needed for achieving the targeted values of heater temperature for the one or more heating zones is calculated. Chamber hardware is controlled to match the targeted value of heater temperature that is correlated with the wafer characteristics corresponding to the current optimum values of the one or more process parameters.

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Santa Clara, CA, United States of America

Mauro Cimino