Control system for adaptive control of a thermal processing system

    公开(公告)号:US12174616B2

    公开(公告)日:2024-12-24

    申请号:US18313655

    申请日:2023-05-08

    Abstract: A control system operable to train a control tuner to generate temperature setpoint tracking improvements for a thermal processing system is provided. In one example implementation, temperature setpoint tracking improvements are achieved by generating system controller parameter adjustments based on a difference between a simulated workpiece temperature estimate and an actual workpiece temperature estimate. For example, a system model can generate a simulated workpiece temperature estimate simulating an actual workpiece temperature estimate, and based on the difference between the simulated and actual workpiece temperature estimates, generate clone controller parameter adjustments. The clone controller parameter adjustments can be used to generate system controller parameter adjustments, which can improve temperature setpoint tracking for the thermal processing system.

    Control System For Adaptive Control Of A Thermal Processing System

    公开(公告)号:US20250093852A1

    公开(公告)日:2025-03-20

    申请号:US18959024

    申请日:2024-11-25

    Abstract: A control system operable to train a control tuner to generate temperature setpoint tracking improvements for a thermal processing system is provided. In one example implementation, temperature setpoint tracking improvements are achieved by generating system controller parameter adjustments based on a difference between a simulated workpiece temperature estimate and an actual workpiece temperature estimate. For example, a system model can generate a simulated workpiece temperature estimate simulating an actual workpiece temperature estimate, and based on the difference between the simulated and actual workpiece temperature estimates, generate clone controller parameter adjustments. The clone controller parameter adjustments can be used to generate system controller parameter adjustments, which can improve temperature setpoint tracking for the thermal processing system.

    Transmission-Based Temperature Measurement of a Workpiece in a Thermal Processing System

    公开(公告)号:US20230230887A1

    公开(公告)日:2023-07-20

    申请号:US18185970

    申请日:2023-03-17

    CPC classification number: H01L22/12 G01J5/042 H01L22/34 H01L21/67115

    Abstract: A thermal processing system for performing thermal processing can include a workpiece support plate configured to support a workpiece and heat source(s) configured to heat the workpiece. The thermal processing system can include window(s) having transparent region(s) that are transparent to electromagnetic radiation within a measurement wavelength range and opaque region(s) that are opaque to electromagnetic radiation within a portion of the measurement wavelength range. A temperature measurement system can include a plurality of infrared emitters configured to emit infrared radiation and a plurality of infrared sensors configured to measure infrared radiation within the measurement wavelength range where the transparent region(s) are at least partially within a field of view the infrared sensors. A controller can be configured to perform operations including obtaining transmittance and reflectance measurements associated with the workpiece and determining, based on the measurements, a temperature of the workpiece less than about 600° C.

    Preheat Processes for Millisecond Anneal System

    公开(公告)号:US20200350217A1

    公开(公告)日:2020-11-05

    申请号:US16936468

    申请日:2020-07-23

    Abstract: Preheat processes for a millisecond anneal system are provided. In one example implementation, a preheat process can include receiving a substrate on a wafer support plate in a processing chamber of a millisecond anneal system; obtaining one or more temperature measurements of the wafer support plate using a temperature sensor; and applying a preheat recipe to heat the wafer support plate based at least in part on the temperature of the wafer support plate. In one example implementation, a preheat process can include obtaining one or more temperature measurements from a temperature sensor having a field of view of a wafer support plate in a millisecond anneal system; and applying a pulsed preheat recipe to heat the wafer support plate in the millisecond anneal system based at least in part on the one or more temperature measurements.

    Transmission-based temperature measurement of a workpiece in a thermal processing system

    公开(公告)号:US11610824B2

    公开(公告)日:2023-03-21

    申请号:US17183992

    申请日:2021-02-24

    Abstract: A thermal processing system for performing thermal processing can include a workpiece support plate configured to support a workpiece and heat source(s) configured to heat the workpiece. The thermal processing system can include window(s) having transparent region(s) that are transparent to electromagnetic radiation within a measurement wavelength range and opaque region(s) that are opaque to electromagnetic radiation within a portion of the measurement wavelength range. A temperature measurement system can include a plurality of infrared emitters configured to emit infrared radiation and a plurality of infrared sensors configured to measure infrared radiation within the measurement wavelength range where the transparent region(s) are at least partially within a field of view the infrared sensors. A controller can be configured to perform operations including obtaining transmittance and reflectance measurements associated with the workpiece and determining, based on the measurements, a temperature of the workpiece less than about 600° C.

    Control System For Adaptive Control Of A Thermal Processing System

    公开(公告)号:US20210132592A1

    公开(公告)日:2021-05-06

    申请号:US17084228

    申请日:2020-10-29

    Abstract: A control system operable to train a control tuner to generate temperature setpoint tracking improvements for a thermal processing system is provided. In one example implementation, temperature setpoint tracking improvements are achieved by generating system controller parameter adjustments based on a difference between a simulated workpiece temperature estimate and an actual workpiece temperature estimate. For example, a system model can generate a simulated workpiece temperature estimate simulating an actual workpiece temperature estimate, and based on the difference between the simulated and actual workpiece temperature estimates, generate clone controller parameter adjustments. The clone controller parameter adjustments can be used to generate system controller parameter adjustments, which can improve temperature setpoint tracking for the thermal processing system.

Patent Agency Ranking