WO2022185969A1 - データ収集システム、データ収集装置、データ収集方法及びデータ収集プログラム - Google Patents
データ収集システム、データ収集装置、データ収集方法及びデータ収集プログラム Download PDFInfo
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Definitions
- the present disclosure relates to a data collection system, data collection device, data collection method, and data collection program.
- optimal processing conditions are searched for by repeating experiments while changing processing conditions so that the substrate shape after processing matches the target substrate shape. is done.
- the target substrate of the mass production machine may not be suitable. In some cases, no shape is obtained. Further experiments are required in such cases. For this reason, in order to efficiently search for optimum processing conditions, it is desirable to collect data equivalent to that of mass-produced machines during experiments.
- the present disclosure provides a data collection system, data collection device, data collection method, and data collection program for collecting appropriate data in searching for processing conditions in substrate processing.
- a data collection system has, for example, the following configuration. Namely a first substrate processing apparatus having a first processing space; a second substrate processing apparatus having a second processing space different from the first processing space; A data collection system having a data collection device connected to the substrate processing apparatus, Substrates of the same or similar shape are processed in the first processing space and the second processing space under the same processing conditions, respectively, and observation data observed by the substrates are compared, and the second processing is performed.
- a correction amount calculation unit that calculates a correction amount for correcting observation data observed by being processed in space; When searching for processing conditions by processing substrates under different processing conditions in the second processing space, observation data observed by being processed in the second processing space is processed based on the correction amount.
- a collecting unit that corrects and collects observation data after correction.
- FIG. 1 is a diagram showing an overview of the configuration and processing of a data collection system according to the first embodiment.
- FIG. 2 is a diagram showing a specific example of calibration amount calculation processing executed by the data collection system according to the first embodiment.
- FIG. 3 is a diagram showing a specific example of correction amount calculation processing executed by the data collection system according to the first embodiment.
- FIG. 4 is a diagram showing a specific example of data collection processing and condition change processing executed by the data collection system according to the first embodiment.
- FIG. 5 is a diagram showing an example of collected data.
- FIG. 6 is a diagram showing specific examples of virtual measurement model learning processing, shape simulation model learning processing, and condition narrowing processing executed by the data collection system according to the first embodiment.
- FIG. 7 is a diagram showing a detailed concrete example of the virtual measurement model learning process.
- FIG. 8 is a diagram showing a detailed specific example of shape simulation model learning processing.
- FIG. 9 is a diagram showing a detailed specific example of the condition narrowing process.
- FIG. 10 is a diagram showing a specific example of virtual measurement processing and shape simulation processing executed by the data collection system according to the first embodiment.
- FIG. 11 is a diagram illustrating an example of a hardware configuration of a data collection device and a data analysis device;
- FIG. 12 is a diagram showing an overview of the configuration and processing of a data collection system according to the second embodiment.
- FIG. 13 is a diagram showing a specific example of correction amount calculation processing executed by the data collection system according to the second embodiment.
- FIG. 14 is a diagram showing a specific example of correction amount calculation processing executed by the data collection system according to the third embodiment.
- FIG. 1 is a diagram showing an overview of the configuration and processing of a data collection system according to the first embodiment.
- the data collection system 100 includes: - A substrate processing apparatus 110, which is an example of a reference substrate processing apparatus; - A substrate processing apparatus A120, which is an example of a first substrate processing apparatus, - Substrate processing apparatus B131, substrate processing apparatus C132, substrate processing apparatus D133, which are examples of the second substrate processing apparatus, a data collection device 140; a data analysis device 150, have
- the data collection system 100 is applied, for example, in a scene where a substrate processing apparatus manufacturer supports a substrate manufacturer so that the substrate manufacturer can mass-produce substrates having a target substrate shape.
- the substrate processing apparatus 110 is, for example, a so-called mass production machine installed in a substrate manufacturer.
- the substrate processing apparatus 110 has a reference chamber, which is an example of a reference processing space, and processes substrates under predetermined processing conditions.
- Various observation sensors are attached to the substrate processing apparatus 110, and observation data observed by the various observation sensors during substrate processing is output.
- the substrate processing apparatus A120 is installed, for example, in a substrate processing apparatus manufacturer (same as a mass-produced machine).
- the substrate processing apparatus A120 has a first chamber, which is an example of the same first processing space as the reference processing space, and processes substrates under predetermined processing conditions.
- Various observation sensors are attached to the substrate processing apparatus A120, and observation data observed by the various observation sensors during substrate processing is output.
- the substrate processing apparatus B131 is, for example, a so-called experimental machine installed in a substrate processing apparatus manufacturer.
- the substrate processing apparatus B131 has a second chamber, which is an example of a second processing space identical to the reference processing space, and processes substrates under predetermined processing conditions.
- Various observation sensors are attached to the substrate processing apparatus B131, and observation data observed by the various observation sensors during substrate processing is output.
- a plasma probe is additionally mounted in the second chamber to output plasma measurement data measured by the plasma probe during substrate processing.
- the substrate processing apparatus C132 is installed, for example, at a substrate processing apparatus manufacturer (experimental machine).
- the substrate processing apparatus C132 has a third chamber, which is an example of a second processing space identical to the reference processing space, and processes substrates under predetermined processing conditions.
- Various observation sensors are attached to the substrate processing apparatus C132, and observation data observed by the various observation sensors during substrate processing is output.
- a wear amount sensor is additionally installed in the third chamber, and the wear amount measurement data indicating the wear amount of the parts in the third chamber measured by the wear amount sensor during substrate processing. to output
- the substrate processing apparatus D133 is installed, for example, at a substrate processing apparatus manufacturer (experimental machine).
- the substrate processing apparatus D133 has a fourth chamber, which is an example of a second processing space identical to the reference processing space, and processes substrates under predetermined processing conditions.
- Various observation sensors are attached to the substrate processing apparatus D133, and observation data observed by the various observation sensors during substrate processing is output.
- a particle sensor is additionally installed in the fourth chamber, and outputs particle measurement data indicating particles in the fourth chamber measured by the particle sensor during processing of the substrate.
- the data collection system 100 includes a shape measuring device that measures the shape of the substrate before processing and the substrate after processing, and is configured to output measured shape data. shall be
- the data collection device 140 is installed, for example, in a substrate processing device manufacturer.
- the data collection device 140 is connected to the substrate processing devices 110, A 120, B 131 to D 133, and a shape measuring device (not shown).
- the data collection device 140 collects the processing conditions used when each substrate processing apparatus processes the substrate, and observation data observed by various observation sensors while each substrate processing apparatus is processing the substrate.
- the data collection device 140 collects shape data measured on pre-processed substrates and post-processed substrates processed by each substrate processing apparatus.
- the data collection device 140 collects plasma measurement data, consumption measurement data, and particle measurement data, which are respectively measured by the plasma probe, the consumption amount sensor, and the particle sensor while the substrate processing apparatuses B131 to D133 are processing the substrates. Collect data.
- the data analysis device 150 is installed, for example, in a substrate processing device manufacturer.
- the data analysis device 150 uses the data (collected data) collected by the data collection device 140 to perform learning processing on various models.
- the processing executed by the data collection system 100 includes: ⁇ "Experimental phase for searching for optimal conditions” ⁇ "Processing phase under optimal conditions", can be roughly divided into
- the experimental phase for searching for optimum conditions is the phase for searching for the optimum processing conditions for realizing the target substrate shape.
- the processing phase under optimum conditions is a phase in which the substrate is processed under the optimum processing conditions that have been found. An outline of the processing in each phase will be described below.
- step S161 the substrate processing apparatus 110, the substrate processing apparatus A 120, and the data collection apparatus 140 perform calibration amount calculation processing.
- the substrate processing apparatus 110 and the substrate processing apparatus A 120 process substrates of the same or similar shape under the same processing conditions, so that observation data observed by various observation sensors are Data collection device 140 collects.
- the data collection device 140 also calculates a calibration amount for calibrating the difference in observation data based on the "instrumental difference" between the substrate processing apparatus 110 and the substrate processing apparatus A120.
- the data collection device 140 calibrates the observation data output from the substrate processing apparatus A 120 based on the calculated calibration amount. As a result, the data collection device 140 collects the same observation data as the observation data output when substrates of the same or similar shape are processed by the substrate processing device 110 under the same processing conditions. It can be collected from processor A120.
- step S162 the substrate processing apparatus A120, the substrate processing apparatuses B131 to D133, and the data collection apparatus 140 perform correction amount calculation processing. Specifically, the substrate processing apparatus A 120 and the substrate processing apparatuses B 131 to D 133 process substrates of the same or similar shape under the same processing conditions, and are observed by various observation sensors. The data collection device 140 collects the observed data.
- the data collection device 140 calculates the difference between various observation data collected from the substrate processing apparatus A 120 and the substrate processing apparatus B 131, thereby correcting the influence of disturbance caused by attaching the plasma probe in the second chamber. Calculate the amount of correction for
- the data collection device 140 corrects the observation data output from the substrate processing apparatus B 131 based on the calculated correction amount. As a result, the data collection device 140 collects the same observation data as the observation data collected when substrates of the same or similar shape are processed by the substrate processing apparatus A 120 under the same processing conditions. It can be collected from the processing device B131.
- the data collection device 140 calculates the difference between the various observation data collected from the substrate processing apparatus A 120 and the substrate processing apparatus C 132 to determine the influence of the disturbance caused by installing the consumption amount sensor in the third chamber. A correction amount for correcting is calculated.
- the data collection device 140 corrects the observation data output from the substrate processing device C132 based on the calculated correction amount. As a result, the data collection device 140 collects the same observation data as the observation data collected when substrates of the same or similar shape are processed by the substrate processing apparatus A 120 under the same processing conditions. It can be collected from processor C132.
- the data collection device 140 calculates the difference between various observation data collected from the substrate processing apparatus A 120 and the substrate processing apparatus D 133, thereby estimating the influence of disturbance caused by installing the particle sensor in the fourth chamber. A correction amount for correction is calculated.
- the data collection device 140 corrects the observation data output from the substrate processing device D133 based on the calculated correction amount. As a result, the data collection device 140 collects the same observation data as the observation data collected when substrates of the same or similar shape are processed by the substrate processing apparatus A 120 under the same processing conditions. It can be collected from the processing device D133.
- step S163 the data collection device 140 selects the processing conditions to be used when the substrate processing apparatuses B131 to D133 process substrates in order to search for the optimum processing conditions for realizing the target substrate shape. change.
- the data collection device 140 also sets the changed processing conditions to the substrate processing apparatuses B131 to D133.
- step S164 the substrate processing apparatuses B131 to D133 and the data collection apparatus 140 perform data collection processing.
- the substrate processing apparatuses B131 to D133 process substrates of the same or similar shape under the changed processing conditions, and obtain various observation data, plasma measurement data, consumption amount measurement data, Output particle measurement data.
- a shape measuring device (not shown) outputs shape data of the unprocessed substrate and shape data of the processed substrate.
- the data collection device 140 corrects various observation data using the correction amount, and collects various observation data after correction.
- the data collection device 140 also collects plasma measurement data output from the substrate processing apparatus B 131, consumption amount measurement data output from the substrate processing apparatus C 132, and particle measurement data output from the substrate processing apparatus D 133 (these are referred to as “various measurement data”). data).
- the data collection device 140 collects shape data of the pre-processed substrate and shape data of the post-processed substrate (these are referred to as “various shape data”) output from a shape measuring device (not shown).
- the data collection device 140 displays collected data (previous processing conditions, various observation data, various measurement data, various shape data) to the experimenter. Accordingly, the experimenter can observe various shape data while referring not only to various observation data, but also to various measurement data, which are detailed data representing the state inside the chamber. As a result, the experimenter can set, as the next processing conditions, more appropriate processing conditions for approximating the target substrate shape, and can efficiently search for the optimum processing conditions.
- condition change process in step S163 and the data collection process in step S164 are repeatedly executed. Further, after the predetermined number of repetitions, the correction amount calculation process of step S162 is executed. This is because various measurement data output from the substrate processing apparatuses B131 to D133 change with time, and by periodically updating the correction amount, the influence of disturbance can always be eliminated.
- the data collection device 140 can search for the optimum processing conditions by: ⁇ Influence of machine difference, ⁇ The influence of the disturbance, Observation data (observation data equivalent to observation data output from the mass-produced substrate processing apparatus 110) can be collected from the substrate processing apparatuses B131 to D133.
- the virtual measurement model is a model for predicting various measurement data (plasma measurement data, consumption measurement data, particle measurement data) during substrate processing based on various observation data.
- the data analysis device 150 performs learning processing using various observation data as input data and various measurement data as correct data. As a result, the data analysis device 150 can generate a learned virtual measurement model.
- the generated learned virtual measurement model is installed, for example, in the substrate processing apparatus 110 that is not equipped with a plasma probe, consumption amount sensor, or particle sensor.
- the substrate processing apparatus 110 predicts the plasma measurement data, the consumption measurement data, and the particle measurement data based on various observation data when processing the substrate in the "processing phase under the optimum conditions", and informs the operator, etc. can be displayed.
- step S166 the data analysis device 150 uses the collected data to perform learning processing on the shape simulation model.
- a shape simulation model is a model for predicting shape data of a post-processing substrate when the substrate is processed.
- the data analysis device 150 various observation data, various measurement data, processing conditions, shape data of the substrate before processing are used as input data, and shape data of the substrate after processing is used as correct data to perform learning processing. As a result, the data analysis device 150 generates a learned shape simulation model.
- the generated learned shape simulation model is mounted on the substrate processing apparatus 110, for example.
- the shape data of the processed substrate after processing the substrate can be predicted in the “processing phase under the optimum conditions”.
- step S166 ends (if the difference from the target substrate shape is equal to or greater than a predetermined threshold value), the processing conditions continue to be adjusted. Continue to search for the optimum processing conditions while making changes.
- step S167 the substrate processing apparatus A120, the substrate processing apparatuses B131 to D133, and the data collection apparatus 140 perform correction amount calculation processing.
- the correction amount calculation processing in step S167 is the same as the correction amount calculation processing in step S162, and thus description thereof is omitted here.
- step S168 the data collection device 140 and the data analysis device 150 perform a condition narrowing process to narrow down the processing conditions using the learned shape simulation model generated in step S166.
- the data analysis device 150 uses the learned shape simulation model to predict the shape data of the processed substrate, thereby narrowing down the processing conditions for approximating the target substrate shape.
- the data analysis device 150 narrows down processing conditions for which collected data has not been obtained in order to improve the prediction accuracy of the learned shape simulation model.
- the data analysis device 150 uses the processing conditions narrowed down from the viewpoint of searching for the optimum processing conditions or the processing conditions narrowed down from the viewpoint of improving the prediction accuracy as the processing conditions after the change as the substrate processing apparatus.
- B131 to substrate processing apparatus D133 are set.
- step S169 the substrate processing apparatuses B131 to D133 and the data collection apparatus 140 perform data collection processing. Note that the data collection processing in step S169 is the same as the data collection processing in step S164, so the description is omitted here.
- condition narrowing process in step S168 and the data collection process in step S169 are also repeatedly executed in the same manner as the condition change process in step S163 and the data collection process in step S164.
- the processing conditions are appropriately narrowed down in step S168, so the speed of approaching the optimum processing conditions is accelerated (that is, the optimum processing conditions are searched more efficiently). can do).
- step S167 when the substrate processing under the changed processing conditions is repeated a predetermined number of times, the correction amount calculation processing of step S167 is executed, and the substrate processing apparatuses B131 to D133 output the correction amounts. It corrects the effects of changes in various observation data over time.
- the process shifts to the "optimal conditions processing phase".
- the substrate processing apparatus 110 equipped with the learned virtual measurement model and the learned shape simulation model generated in the experiment phase for searching for optimal conditions is used to perform processing under optimal processing conditions. Process the substrate.
- step S171 the substrate processing apparatus 110 executes a virtual measurement process when processing a substrate under optimum processing conditions.
- various observation data observed during substrate processing are input to the learned virtual measurement model, and various measurement data (plasma measurement data, consumption measurement data, particle measurement data) are predicted.
- various types of predicted measurement data are displayed to the operator or the like.
- step S172 the substrate processing apparatus 110 executes shape simulation processing when processing the substrate under optimum processing conditions.
- various observation data observed during substrate processing various predicted measurement data, processing conditions, and shape data of the substrate before processing are input to the learned shape simulation model.
- the shape data of the processed substrate is predicted, and the predicted shape data is displayed to the operator or the like.
- the operator can determine the quality of the processed substrates without performing a 100% inspection of the processed substrates.
- Step S161 a specific example of the calibration amount calculation process (step S161) executed by the data collection system 100 will be described.
- FIG. 2 is a diagram showing a specific example of calibration amount calculation processing executed by the data collection system according to the first embodiment.
- data M_ ⁇ 0” and “observation data M_A0” are output.
- a data collection program is installed in the data collection device 140, and by executing the program, the data collection device 140 - Calibration amount calculation unit 210, - Correction amount calculation unit 220, - collection unit 230, ⁇ Condition change unit 240, function as
- FIG. 3 is a diagram showing a specific example of correction amount calculation processing executed by the data collection system according to the first embodiment.
- Data M_A1” to “Observation Data M_D1” are shown.
- FIG. 4 is a diagram showing a specific example of data collection processing and condition change processing executed by the data collection system according to the first embodiment.
- step S163 the condition change unit 240 of the data collection device 140 operates.
- ⁇ Observation data “Observation data M_B2”, “Observation data M_B3”, .
- ⁇ Measurement data “measurement data I_B2”, “measurement data I_B3”, . . . , is output.
- ⁇ Observation data “Observation data M_C2”, “Observation data M_C3”, .
- ⁇ Measurement data “measurement data I_C2”, “measurement data I_B3”, . . . , is output.
- ⁇ Observation data “Observation data M_D2”, “Observation data M_D3”, .
- - Measurement data "measurement data I_D2", "measurement data I_D3", ..., is output.
- the collection unit 230 of the data collection device 140 operates. As shown in FIG. 4, the collection unit 230 has storage units 401 , 403 and 405 and correction storage units 402 , 404 and 406 .
- FIG. 5 is a diagram showing an example of collected data.
- the collected data 500 includes “processing conditions”, “observation data”, “measurement data”, “pre-processing substrate shape data”, and “post-processing substrate shape data” as information items.
- Observation data stores observed values such as DC self-bias voltage, potential difference, reflected wave power, gas flow rate, plasma density, ion energy, and ion flow rate.
- Observation data “observation data M_B1”, “observation data M_C1”, and “observation data M_D1” are each composed of a combination of these observation values.
- Measurement data stores the measurement values of the additionally installed sensors, such as plasma measurement data, consumption measurement data, and particle measurement data.
- the measurement data “measurement data I_B1” includes the measured value of the plasma measurement data.
- the measurement data “measurement data I_C1” includes the measured value of the consumption amount measurement data.
- the measurement data “measurement data I_D1” includes the measurement value of the particle measurement data.
- Pre-processing substrate shape data stores, for example, shape values such as critical dimension, depth, taper angle, tilt angle, and bowing.
- Post-processing substrate shape data stores shape values such as critical dimension, depth, taper angle, tilt angle, and bowing.
- step S165 Specific example of virtual measurement model learning process (step S165), shape simulation model learning process (step S166), and condition narrowing process (step S168) (4-1) Specific example (outline)
- step S165 Specific example of virtual measurement model learning process
- step S166 shape simulation model learning process
- step S168 condition narrowing process
- FIG. 6 is a diagram showing a specific example of virtual measurement model learning processing, shape simulation model learning processing, and condition narrowing processing executed by the data collection system according to the first embodiment.
- a data analysis program is installed in the data analysis device 150, and when the program is executed, the data analysis device 150 a virtual measurement model learning unit 610; - shape simulation model learning unit 630, a learned shape simulation model 640; - A shape simulation control unit 650 (an example of a control unit and a determination unit), function as
- the data analysis device 150 operates the virtual measurement model learning unit 610 to read the collected data 500 stored in the collected data storage unit 250.
- the virtual measurement model learning unit 610 also uses the read collected data 500 to perform a learning process on the virtual measurement model.
- the learned virtual measurement model 620 generated by performing the learning process on the virtual measurement model by the virtual measurement model learning unit 610 is mounted on the substrate processing apparatus 110 .
- the shape simulation model learning unit 630 operates to read the collected data 500 stored in the collected data storage unit 250. Also, the shape simulation model learning unit 630 uses the read collected data 500 to perform a learning process on the shape simulation model.
- the learned shape simulation model 640 generated by the learning process performed by the shape simulation model learning unit 630 is mounted on the substrate processing apparatus 110 . Also, the learned shape simulation model 640 is executed by the shape simulation control unit 650 in the condition narrowing process (step S168).
- the shape simulation control unit 650 of the data analysis device 150 operates.
- the shape simulation control unit 650 executes the learned shape simulation model under various processing conditions, and obtains prediction results for the shape data of the processed substrate. Further, the shape simulation control unit 650 compares the shape data of the processed substrate, which is the result of prediction, with the target substrate shape, thereby narrowing down the processing conditions that can realize the target substrate shape. Furthermore, the narrowed down processing conditions are notified to the condition change unit 240 of the data collection device 140 .
- the condition changing unit 240 can set the processing conditions narrowed down from the viewpoint of searching for the optimum processing conditions to the substrate processing apparatuses B131 to D133 as the post-change processing conditions.
- the shape simulation control unit 650 also refers to the collected data 500 stored in the collected data storage unit 250 to determine processing conditions that are not used for learning processing of the shape simulation model. Further, the shape simulation control section 650 notifies the condition changing section 240 of the determined processing conditions. Thereby, the condition changing unit 240 sets the processing conditions determined by the shape simulation control unit 650 to the substrate processing apparatuses B131 to D133 as the processing conditions after the change. As a result, data collection processing (step S169) is performed in the substrate processing apparatuses B131 to D133 and the data collection device 140, and the collected data 500 in the collected data storage unit 250 contains ⁇ Various observation data, ⁇ Various measurement data, ⁇ Various shape data (pre-processing board shape data, post-processing board shape data), will be newly stored.
- the shape simulation control unit 650 performs a learned shape simulation using the determined processing conditions, various newly stored observation data, various measurement data, and various shape data (pre-process substrate shape data, post-process substrate shape data). Retraining is performed on the model. Note that the shape simulation control unit 650 repeats processing condition determination and re-learning processing a plurality of times. At this time, the shape simulation control unit 650 identifies a processing condition with low prediction accuracy, and notifies the condition changing unit 240 of the identified processing condition with low prediction accuracy (that is, re-learning processing for the learned shape simulation model).
- condition changing unit 240 can set the processing conditions narrowed down from the viewpoint of improving the prediction accuracy of the learned shape simulation model 640 to the substrate processing apparatuses B131 to D133 as the post-change processing conditions. can.
- FIG. 7 is a diagram showing a detailed concrete example of the virtual measurement model learning process.
- the virtual measurement model learning unit 610 has a virtual measurement model 710 and a comparison/modification unit 720.
- the set values stored in the "processing conditions" of the collected data 500 and the observed values stored in the "observation data” are input to the virtual measurement model 710 as input data.
- the virtual measurement model 710 thereby outputs output data.
- the measured value stored in the "measured data" of the collected data 500 is input to the comparison/change unit 720 as correct data.
- Comparison/modification unit 720 calculates an error by comparing the output data output from virtual measurement model 710 and the measured value input as correct data, and changes virtual measurement model 710 according to the calculated error. Update model parameters.
- virtual measurement model learning section 610 can generate learned virtual measurement model 620 .
- FIG. 8 is a diagram showing a detailed specific example of shape simulation model learning processing.
- the shape simulation model learning unit 630 has a shape simulation model 810 and a comparing/modifying unit 820.
- the shape simulation model 810 the set values stored in the "processing conditions" of the collected data 500, the observed values stored in the “observation data”, the measured values stored in the “measurement data”, and the "before processing The shape values stored in the "board shape data” are input as input data. Thereby, the shape simulation model 810 outputs output data.
- the shape value stored in the "processed substrate shape data" of the collected data 500 is input to the comparison/change unit 820 as correct data.
- the comparison/modification unit 820 calculates an error by comparing the output data output from the shape simulation model 810 and the shape value input as correct data, and changes the shape simulation model 810 according to the calculated error. Update model parameters.
- the shape simulation model learning unit 630 can generate the learned shape simulation model 640 .
- FIG. 9 is a diagram showing details of a specific example of the condition narrowing process.
- the shape simulation control unit 650 compares the acquired shape data (“shape data S101”, “shape data S102”, . . . ) with the shape data of the target substrate shape. Narrow down the processing conditions that can realize the substrate shape. Furthermore, the narrowed down processing conditions are notified to the condition change unit 240 of the data collection device 140 .
- the shape simulation control unit 650 refers to the collected data 500 stored in the collected data storage unit 250 and determines processing conditions that are not used for learning processing of the shape simulation model.
- a dashed line area 900 shown in the lower left of FIG. 9 schematically shows a searchable range as a processing condition.
- a solid line area 910 schematically shows a range (interpolation range) used for learning processing of the shape simulation model.
- the shape simulation control unit 650 narrows down the processing conditions with low prediction accuracy among the processing conditions not used in the learning process of the shape simulation model. .
- FIG. 9 shows how the shape simulation control unit 650 has narrowed down the area other than the solid line area 910 to the solid line area 920 in the dashed line area 900 .
- the shape simulation control unit 650 notifies the condition changing unit 240 of “condition x+1”, “condition x+2”, . . .
- the state of inputting to the shape simulation model 640 is shown.
- ⁇ Processing condition “condition x+1”, “condition x+2”, . . .
- FIG. 10 is a diagram showing a specific example of virtual measurement processing and shape simulation processing executed by the data collection system according to the first embodiment.
- processing condition “condition x”
- observation data “observation data M_ ⁇ x”
- the input to the model 640 is shown.
- FIG. 11 is a diagram illustrating an example of a hardware configuration of a data collection device and a data analysis device
- the data collection device 140 has a processor 1101, a memory 1102, an auxiliary storage device 1103, an I/F (Interface) device 1104, a communication device 1105, and a drive device 1106. .
- Each piece of hardware of the data collection device 140 is interconnected via a bus 1107 .
- the processor 1101 has various computing devices such as a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit).
- the processor 1101 reads various programs (for example, a data collection program, etc.) onto the memory 1102 and executes them.
- the memory 1102 has main storage devices such as ROM (Read Only Memory) and RAM (Random Access Memory).
- the processor 1101 and the memory 1102 form a so-called computer, and the processor 1101 executes various programs read onto the memory 1102, thereby realizing the various functions described above.
- the auxiliary storage device 1103 stores various programs and various data used when the various programs are executed by the processor 1101 .
- the collected data storage unit 250 described above is implemented in the auxiliary storage device 1103 .
- the I/F device 1104 is a connection device that connects the display device 1108 , the operation device 1109 and the data collection device 140 .
- the communication device 1105 is a communication device for communicating with the substrate processing apparatus 110, the substrate processing apparatus A 120, the substrate processing apparatuses B 131 to D 133, the shape measurement apparatus 1110, the data analysis apparatus 150, etc. via a network.
- a drive device 1106 is a device for setting a recording medium 1111 .
- the recording medium 1111 here includes media such as CD-ROMs, flexible disks, magneto-optical disks, etc., which record information optically, electrically or magnetically. Also, the recording medium 1111 may include a semiconductor memory or the like that electrically records information, such as a ROM or a flash memory.
- auxiliary storage device 1103 Various programs to be installed in the auxiliary storage device 1103 are installed, for example, by setting the distributed recording medium 1111 in the drive device 1106 and reading out the various programs recorded in the recording medium 1111. Alternatively, various programs installed in the auxiliary storage device 1103 may be installed by being downloaded from the network via the communication device 1105 .
- the processor 1121 reads the data analysis program onto the memory 1122 and executes it.
- the communication device 1125 communicates with the substrate processing device 110 and the data collection device 140 .
- the collection system A substrate processing apparatus A having a first chamber, substrate processing apparatuses B to D having a second chamber different from the first chamber, and data connected to the substrate processing apparatus A and the substrate processing apparatuses B to D and a collection device 140 .
- Substrates of the same or similar shape are processed in the first chamber and the second chamber under the same conditions, and various observed data are compared and processed in the second chamber.
- a correction amount for correcting various observation data is calculated.
- the observation data observed by processing in the second chamber is corrected based on the correction amount. and collect the corrected observation data.
- the collection system uses a plurality of substrate processing apparatuses to process substrates of the same or similar shape under the same conditions, and collects observation data corrected for the effects of disturbance. do.
- the collection system according to the first embodiment is -
- the first chamber is configured identically to the reference chamber of the reference substrate processing apparatus. • A calibration amount based on machine difference is calculated from various observation data observed when substrates of the same or similar shape are processed in the reference chamber and the first chamber under the same conditions.
- the collection system according to the first embodiment is ⁇ A plasma probe, a consumption amount sensor, and a particle sensor are added to each of the second chambers of the substrate processing apparatuses B to D, and various measurement data (plasma measurement data, consumption amount measurement data, particle measurement data) during substrate processing are collected. data) and display it.
- the processing conditions it is possible to change the processing conditions while referring to various measurement data, which are detailed data representing the state inside the chamber, and to efficiently search for the optimum processing conditions. be able to.
- the collection system is Generating a trained virtual measurement model that predicts various measurement data during substrate processing.
- ⁇ Perform learning processing including various measurement data during substrate processing, and generate a learned shape simulation model.
- the collection system according to the first embodiment is - Install the generated learned virtual measurement model and learned shape simulation model in the substrate processing apparatus of the mass-production machine.
- the same substrate processing apparatus A (mass production machine) as the substrate processing apparatus (reference substrate processing apparatus) installed in the substrate manufacturing manufacturer is installed in the substrate processing apparatus manufacturer.
- the configuration of the data collection system is not limited to this.
- the data collection system may be configured without installing the substrate processing apparatus A in the substrate processing apparatus manufacturer.
- a data collection system according to the second embodiment will be described below.
- FIG. 12 is a diagram showing an overview of the configuration and processing of a data collection system according to the second embodiment.
- data collection system 1200 includes: - A substrate processing apparatus A1210, which is an example of a first substrate processing apparatus; - Substrate processing apparatus B131, substrate processing apparatus C132, substrate processing apparatus D133, which are examples of the second substrate processing apparatus, a data collection device 140; data analysis device 150, have
- the system configuration is such that the substrate processing apparatus A 1210 is installed in the substrate manufacturer instead of the substrate processing apparatus 110 .
- the data collection system 1200 is applied, for example, to a scene where a substrate processing apparatus manufacturer supports a substrate manufacturer so that the substrate manufacturer can mass-produce substrates having a target substrate shape. be.
- the substrate processing apparatus A1210 is installed, for example, in a substrate manufacturer (mass production machine).
- the substrate processing apparatus A1210 has a first chamber and processes substrates under predetermined processing conditions.
- Various observation sensors are attached to the substrate processing apparatus A1210, and observation data observed by the various observation sensors during substrate processing is output.
- the substrate processing apparatuses B131 to D133, the data collection apparatus 140, and the data analysis apparatus 150 shown in FIG. 12 are the same as those in FIG. 1, and thus descriptions thereof are omitted here.
- each process included in the "experiment phase for searching for optimum conditions" is the same as in FIG. .
- step S162 ⁇ Specific example of processing executed by the data collection system>
- FIG. 13 is a diagram showing a specific example of correction amount calculation processing executed by the data collection system according to the second embodiment.
- the correction amount calculation unit 220 uses the correction amounts b′, c′, d′ ( The point is to calculate a correction amount for eliminating the effects of both instrumental differences and disturbances.
- the data collection system is configured without installing the same substrate processing apparatus (reference substrate processing apparatus) as the substrate processing apparatus (reference substrate processing apparatus) installed at the substrate processing apparatus manufacturer at the substrate processing apparatus manufacturer.
- ⁇ Substrates of the same or similar shape are processed in the first chamber and the second chamber under the same conditions, and various observed data are compared and processed in the second chamber.
- a correction amount for correcting various observation data is calculated.
- the observation data observed by processing in the second chamber is corrected based on the correction amount. and collect the corrected observation data.
- correction amounts of various observation data are calculated in the correction amount calculation process (steps S162 and S167).
- correction amounts are calculated also for various measurement data (specifically, particle measurement data).
- the third embodiment will be described below, focusing on differences from the first and second embodiments.
- FIG. 14 is a diagram showing a specific example of correction amount calculation processing executed by the data collection system according to the third embodiment.
- the third embodiment it is possible to collect appropriate measurement data (in which the influence of machine difference and the influence of disturbance are eliminated) in searching for processing conditions in substrate processing.
- it may be configured to output a determination result that the target substrate shape cannot be achieved simply by changing the current processing conditions.
- It may be configured to propose changes to processing conditions other than the current processing conditions. Changes in processing conditions other than the current processing conditions referred to here include, for example, pulse modulation, impedance control, and the like.
- substrate processing by the substrate processing apparatus may include, for example, film formation processing and etching processing.
- the substrate processing apparatus includes an etching apparatus, a film forming apparatus, an ashing apparatus, an annealing apparatus, a doping apparatus, and the like. may be
- the substrate shape data data regarding the external appearance of the substrate such as critical dimension, depth, taper angle, tilt angle, bowing, etc. were exemplified. It is not limited to data on appearance.
- the substrate shape data may include data other than data related to the appearance of the substrate, such as film thickness, film type, and film characteristics.
- the "same processing conditions" in the above-described first to fourth embodiments are not limited to cases in which the processing conditions are completely the same.
- the resulting processing conditions may be included.
- the term "same effect" as used herein does not necessarily mean that the change in the substrate shape data before and after the treatment is completely the same, and indicates that the change in the substrate shape data is approximately the same (within a predetermined range). shall be
- the "substrates of the same or similar shape" in the first to fourth embodiments include those having similar substrate shape data (those within a predetermined range).
- plasma measurement data, consumption measurement data, and particle measurement data have been cited as various measurement data, but they are not limited to these, and other measurement data may be included.
- the various measurement data are measured by the sensors installed inside the substrate processing apparatus, but the various measurement data may be acquired from outside the substrate processing apparatus. That is, the other measurement data may include, for example, component analysis data by XPS (X-ray Photoelectron Spectroscopy). Alternatively, the other measurement data may include characteristic data or the like obtained by processing by another processing device.
- XPS X-ray Photoelectron Spectroscopy
- the data collection device 140 and the data analysis device 150 are configured as separate units, but the data collection device 140 and the data analysis device 150 may be configured as an integrated unit.
- the data collection device 140 and the data analysis device 150 are configured separately from the substrate processing apparatus 110, the substrate processing apparatus A120, and the substrate processing apparatuses B131 to D133.
- the data collection device 140 or the data analysis device 150 may be provided inside the substrate processing apparatus 110, the substrate processing apparatus A120, or the substrate processing apparatuses B131 to D133.
- the data collection device 140 and the data analysis device 150 have been described as executing the data collection program and the data analysis program, respectively.
- the data collection device 140 and the data analysis device 150 may each be configured by, for example, a plurality of computers, and by installing the data collection program or data analysis program in each, may be performed in the form of distributed computing.
- the method of downloading and installing via a network is mentioned as an example of the method of installing the data collection program in the auxiliary storage device 1103 of the data collection device 140 .
- a method of downloading and installing via a network has been mentioned.
- the download source may be, for example, a server apparatus that stores the data collection program or data analysis program in an accessible manner.
- the server device may be a device on the cloud that receives access from the data collection device 140 or the data analysis device 150 via the network and downloads the data collection program or the data analysis program on the condition of charging. . That is, the server device may be a cloud-based device that provides a data collection program or data analysis program.
- the virtual measurement model used in the first to fourth embodiments may be, for example, an ARX model. good.
- details of the shape simulation model were not mentioned, but the shape simulation model used in the first to fourth embodiments is, for example, a model based on a convolutional neural network. There may be.
- the various models used in the first to fourth embodiments are not limited to these examples, and other machine learning learning models including deep learning, statistical models, or models combining these models etc.
- Data collection system 110 Substrate processing apparatus 120: Substrate processing apparatus A 131: substrate processing apparatus B 132: substrate processing apparatus C 133: substrate processing apparatus D 140 : Data collection device 150 : Data analysis device 210 : Calibration amount calculation unit 220 : Correction amount calculation unit 230 : Collection unit 240 : Condition change unit 500 : Collected data 610 : Virtual measurement model learning unit 620 : Learned virtual measurement model 630 : Shape simulation model learning unit 640 : Learned shape simulation model 650 : Shape simulation control unit 1200 : Data collection system 1210 : Substrate processing apparatus A
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Abstract
Description
第1の処理空間を有する第1の基板処理装置と、前記第1の処理空間とは異なる第2の処理空間を有する第2の基板処理装置と、前記第1の基板処理装置及び第2の基板処理装置と接続されるデータ収集装置と、を有するデータ収集システムであって、
同一または類似形状の基板が、同一の処理条件のもとで、前記第1の処理空間及び第2の処理空間においてそれぞれ処理されることで観測される観測データを比較し、前記第2の処理空間において処理されることで観測される観測データを補正する補正量を算出する補正量算出部と、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記第2の処理空間において処理されることで観測される観測データを、前記補正量に基づいて補正し、補正後の観測データを収集する収集部とを有する。
<データ収集システムの構成及び処理の概要>
はじめに、第1の実施形態に係るデータ収集システムの構成及び第1の実施形態に係るデータ収集システムにより実行される処理の概要について説明する。図1は、第1の実施形態に係るデータ収集システムの構成及び処理の概要を示す図である。
・基準基板処理装置の一例である、基板処理装置110、
・第1の基板処理装置の一例である、基板処理装置A120、
・第2の基板処理装置の一例である、基板処理装置B131、基板処理装置C132、基板処理装置D133、
・データ収集装置140、
・データ解析装置150、
を有する。
・「最適条件探索のための実験フェーズ」と、
・「最適条件による処理フェーズ」と、
に大別することができる。
ステップS161において、基板処理装置110と基板処理装置A120とデータ収集装置140は、校正量算出処理を行う。
・機差の影響、
・擾乱の影響、
が排除された観測データ(量産機である基板処理装置110より出力される観測データと同等の観測データ)を、基板処理装置B131~基板処理装置D133より収集することができる。
次に、データ収集システム100により実行される各処理の具体例について説明する。
はじめに、データ収集システム100により実行される校正量算出処理(ステップS161)の具体例について説明する。図2は、第1の実施形態に係るデータ収集システムにより実行される校正量算出処理の具体例を示す図である。
・校正量算出部210、
・補正量算出部220、
・収集部230、
・条件変更部240、
として機能する。
次に、データ収集システム100により実行される補正量算出処理(ステップS162)の具体例について説明する。図3は、第1の実施形態に係るデータ収集システムにより実行される補正量算出処理の具体例を示す図である。
次に、データ収集システム100により実行される条件変更処理(ステップS163)及びデータ収集処理(ステップS164)の具体例について説明する。図4は、第1の実施形態に係るデータ収集システムにより実行されるデータ収集処理及び条件変更処理の具体例を示す図である。
・観測データ=「観測データM_B2」、「観測データM_B3」、・・・、
・測定データ=「測定データI_B2」、「測定データI_B3」、・・・、
が出力された様子を示している。また、図4の例は、基板処理装置B131により処理されることで、
・形状データ=「形状データS_B2」、「形状データS_B3」、・・・の処理前基板から、
・形状データ=「形状データS_B2’」、「形状データS_B3’」、・・・の処理後基板、
が生成された様子を示している。
・観測データ=「観測データM_C2」、「観測データM_C3」、・・・、
・測定データ=「測定データI_C2」、「測定データI_B3」、・・・、
が出力された様子を示している。また、図4の例は、基板処理装置C132により処理されることで、
・形状データ=「形状データS_C2」、「形状データS_C3」、・・・の処理前基板から、
・形状データ=「形状データS_C2’」、「形状データS_C3’」、・・・の処理後基板、
が生成された様子を示している。
・観測データ=「観測データM_D2」、「観測データM_D3」、・・・、
・測定データ=「測定データI_D2」、「測定データI_D3」、・・・、
が出力された様子を示している。また、図4の例は、基板処理装置D133により処理されることで、
・形状データ=「形状データS_D2」、「形状データS_D3」、・・・の処理前基板から、
・形状データ=「形状データS_D2’」、「形状データS_D3’」、・・・の処理後基板、
が生成された様子を示している。
・処理前基板の形状データ=「形状データS_B2」、「形状データS_B3」、・・・、
・処理後基板の形状データ=「形状データS_B2’」、「形状データS_B3’」、・・・、
を収集データ格納部250に格納した様子を示している。
・処理前基板の形状データ=「形状データS_C2」、「形状データS_C3」、・・・、
・処理後基板の形状データ=「形状データS_C2’」、「形状データS_C3’」、・・・、を収集データ格納部250に格納した様子を示している。
・処理前基板の形状データ=「形状データS_D2」、「形状データS_D3」、・・・、
・処理後基板の形状データ=「形状データS_D2’」、「形状データS_D3’」、・・・、を収集データ格納部250に格納した様子を示している。
(4-1)具体例(概要)
次に、データ収集システム100により実行される仮想測定モデル学習処理(ステップS165)、形状シミュレーションモデル学習処理(ステップS166)、条件絞り込み処理(ステップS168)の具体例(概要)について説明する。
・仮想測定モデル学習部610、
・形状シミュレーションモデル学習部630、
・学習済み形状シミュレーションモデル640、
・形状シミュレーション制御部650(制御部及び判定部の一例)、
として機能する。
・各種観測データ、
・各種測定データ、
・各種形状データ(処理前基板形状データ、処理後基板形状データ)、
が新たに格納されることになる。
次に、仮想測定モデル学習処理(ステップS165)の更なる詳細な具体例について説明する。図7は、仮想測定モデル学習処理の詳細な具体例を示す図である。
次に、形状シミュレーションモデル学習処理(ステップS166)の更なる詳細な具体例について説明する。図8は、形状シミュレーションモデル学習処理の詳細な具体例を示す図である。
次に、条件絞り込み処理(ステップS168)の更なる詳細な具体例について説明する。図9は、条件絞り込み処理の具体例の詳細を示す図である。
・処理条件=「条件x+1」、「条件x+2」、・・・と、
・処理条件=「条件x+1」、「条件x+2」、・・・のもとで基板処理装置B131~基板処理装置D133が基板を処理した際の、各種観測データ、各種測定データ、処理前基板形状データと、
を入力データとし、
・処理条件=「条件x+1」、「条件x+2」、・・・のもとで基板処理装置B131~基板処理装置D133が基板を処理した際の処理後基板の形状データ、
を正解データとして、学習済み形状シミュレーションモデル640に対して再学習処理を行うことができる。
次に、データ収集システム100により実行される仮想測定処理(ステップS171)及び形状シミュレーション処理(ステップS172)の具体例について説明する。図10は、第1の実施形態に係るデータ収集システムにより実行される仮想測定処理及び形状シミュレーション処理の具体例を示す図である。
次に、データ収集装置140及びデータ解析装置150のハードウェア構成について説明する。図11は、データ収集装置及びデータ解析装置のハードウェア構成の一例を示す図である。
図11の11aに示すように、データ収集装置140は、プロセッサ1101、メモリ1102、補助記憶装置1103、I/F(Interface)装置1104、通信装置1105、ドライブ装置1106を有する。なお、データ収集装置140の各ハードウェアは、バス1107を介して相互に接続されている。
図11の11bに示すように、データ解析装置150のハードウェア構成は、データ収集装置140のハードウェア構成と同様であるため、ここでは、データ収集装置140との相違点について説明する。
以上の説明から明らかなように、第1の実施形態に係る収集システムは、
・第1のチャンバを有する基板処理装置Aと、第1のチャンバとは異なる第2のチャンバを有する基板処理装置B~Dと、基板処理装置A及び基板処理装置B~Dと接続されるデータ収集装置140とを有する。
・同一または類似形状の基板が、同一条件のもとで、第1のチャンバ及び第2のチャンバにおいてそれぞれ処理されることで観測される各種観測データを比較し、第2のチャンバにおいて処理されることで観測される各種観測データを補正する補正量を算出する。
・第2のチャンバにおいて処理条件を変更しながら基板を処理することで最適な処理条件を探索する際、第2のチャンバにおいて処理されることで観測される観測データを、補正量に基づいて補正し、補正後の観測データを収集する。
・第1のチャンバを、基準基板処理装置が有する基準チャンバと同一に構成する。
・同一または類似形状の基板が、同一条件のもとで、基準チャンバ及び第1のチャンバにおいてそれぞれ処理されることで観測される各種観測データから、機差に基づく校正量を算出する。
・基板処理装置B~Dの各第2のチャンバに、プラズマプローブ、消耗量センサ、パーティクルセンサを追加して取り付け、基板の処理中の各種測定データ(プラズマ測定データ、消耗量測定データ、パーティクル測定データ)を収集して、表示する。
・基板処理中の各種測定データを予測する学習済みの仮想測定モデルを生成する。
・基板処理中の各種測定データを含めて学習処理を行い、学習済みの形状シミュレーションモデルを生成する。
・生成した学習済みの仮想測定モデル及び学習済みの形状シミュレーションモデルを、量産機の基板処理装置に搭載する。
上記第1の実施形態に係るデータ収集システム100では、基板製造メーカに設置された基板処理装置(基準基板処理装置)と同じ基板処理装置A(量産機)を、基板処理装置製造メーカに設置するものとして説明した。しかしながら、データ収集システムの構成はこれに限定されず、例えば、基板処理装置製造メーカに基板処理装置Aを設置することなくデータ収集システムを構成してもよい。以下、第2の実施形態に係るデータ収集システムについて説明する。
はじめに、第2の実施形態に係るデータ収集システムの構成及び第2の実施形態に係るデータ収集システムにより実行される処理の概要について説明する。図12は、第2の実施形態に係るデータ収集システムの構成及び処理の概要を示す図である。
・第1の基板処理装置の一例である、基板処理装置A1210、
・第2の基板処理装置の一例である、基板処理装置B131、基板処理装置C132、基板処理装置D133、
・データ収集装置140、
・データ解析装置150、
を有する。なお、本実施形態では、説明の便宜上、基板処理装置A1210が、基板処理装置110の代わりに、基板製造メーカに設置されている、というシステム構成にしている。
次に、データ収集システム1200により実行される処理のうち、補正量算出処理(ステップS162)の具体例について説明する。
図13は、第2の実施形態に係るデータ収集システムにより実行される補正量算出処理の具体例を示す図である。
以上の説明から明らかなように、第2の実施形態に係るデータ収集システムは、
・基板製造メーカに設置された基板処理装置(基準基板処理装置)と同じ基板処理装置Aを、基板処理装置製造メーカに設置することなく、データ収集システムを構成する。
・同一または類似形状の基板が、同一条件のもとで、第1のチャンバ及び第2のチャンバにおいてそれぞれ処理されることで観測される各種観測データを比較し、第2のチャンバにおいて処理されることで観測される各種観測データを補正する補正量を算出する。
・第2のチャンバにおいて処理条件を変更しながら基板を処理することで最適な処理条件を探索する際、第2のチャンバにおいて処理されることで観測される観測データを、補正量に基づいて補正し、補正後の観測データを収集する。
上記第1及び第2の実施形態では、補正量算出処理(ステップS162、S167)において、各種観測データの補正量を算出するものとして説明した。これに対して、第3の実施形態では、補正量算出処理において、各種測定データ(具体的には、パーティクル測定データ)についても、補正量を算出する。以下、第3の実施形態について、上記第1及び第2の実施形態との相違点を中心に説明する。
上記第1乃至第3の実施形態では、条件絞り込み処理(ステップS168)において、目標とする基板形状を実現する、最適な処理条件が探索できるものとして説明した。しかしながら、データ解析装置150において、最適な処理条件が探索できないケースも想定される。
上記第1乃至第4の実施形態では、基板処理装置による基板処理の具体例について言及しなかったが、基板処理装置による基板処理には、例えば、成膜処理、エッチング処理が含まれてもよい。また、上記第1乃至第4の実施形態では、基板処理装置の具体例について言及しなかったが、基板処理装置には、エッチング装置、成膜装置、アッシング装置、アニール装置、ドーピング装置等が含まれてもよい。
110 :基板処理装置
120 :基板処理装置A
131 :基板処理装置B
132 :基板処理装置C
133 :基板処理装置D
140 :データ収集装置
150 :データ解析装置
210 :校正量算出部
220 :補正量算出部
230 :収集部
240 :条件変更部
500 :収集データ
610 :仮想測定モデル学習部
620 :学習済み仮想測定モデル
630 :形状シミュレーションモデル学習部
640 :学習済み形状シミュレーションモデル
650 :形状シミュレーション制御部
1200 :データ収集システム
1210 :基板処理装置A
Claims (15)
- 第1の処理空間を有する第1の基板処理装置と、前記第1の処理空間とは異なる第2の処理空間を有する第2の基板処理装置と、前記第1の基板処理装置及び第2の基板処理装置と接続されるデータ収集装置と、を有するデータ収集システムであって、
同一または類似形状の基板が、同一の処理条件のもとで、前記第1の処理空間及び第2の処理空間においてそれぞれ処理されることで観測される観測データを比較し、前記第2の処理空間において処理されることで観測される観測データを補正する補正量を算出する補正量算出部と、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記第2の処理空間において処理されることで観測される観測データを、前記補正量に基づいて補正し、補正後の観測データを収集する収集部と
を有するデータ収集システム。 - 前記第1の処理空間は、基準処理空間と同一であり、
前記データ収集システムは、
同一または類似形状の基板が、同一の処理条件のもとで、前記基準処理空間及び前記第1の処理空間においてそれぞれ処理されることで観測される観測データから、機差に基づく校正量を算出する校正量算出部を更に有し、
前記補正量算出部が補正量を算出する際に比較される、前記第1の処理空間において処理されることで観測される観測データは、前記校正量に基づいて校正された観測データである、請求項1に記載のデータ収集システム。 - 前記第2の基板処理装置には、前記第1の基板処理装置には取り付けられていないセンサが追加して取り付けられており、
前記収集部は、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記追加して取り付けられたセンサにより測定された測定データを収集する、請求項1に記載のデータ収集システム。 - 前記第2の基板処理装置には、
前記第2の処理空間内におけるプラズマを測定するセンサが追加して取り付けられた基板処理装置、
前記第2の処理空間内におけるパーツの消耗量を測定するセンサが追加して取り付けられた基板処理装置、
前記第2の処理空間内におけるパーティクルを測定するセンサが追加して取り付けられた基板処理装置、
の少なくともいずれかが含まれる、請求項1に記載のデータ収集システム。 - 前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記追加して取り付けられたセンサにより測定された測定データを表示する、請求項3に記載のデータ収集システム。
- 前記収集部により収集された補正後の観測データを入力データ、前記収集部により収集された測定データを正解データとして仮想測定モデルを学習する仮想測定モデル学習部を更に有する、請求項1に記載のデータ収集システム。
- 前記第1の基板処理装置は、前記仮想測定モデル学習部により学習された学習済みの仮想測定モデルを有し、
前記第1の処理空間において処理されることで観測される観測データを、前記学習済みの仮想測定モデルに入力することで予測された測定データを表示する、請求項6に記載のデータ収集システム。 - 前記収集部により収集された補正後の観測データ、前記収集部により収集された測定データ、及び、前記第2の処理空間において基板を処理する際の処理条件を入力データとし、前記第2の処理空間において処理条件を変えて基板を処理することで得られた処理後基板の形状データを正解データとして、形状シミュレーションモデルを学習する形状シミュレーションモデル学習部を更に有する、請求項6に記載のデータ収集システム。
- 前記形状シミュレーションモデル学習部により学習された学習済みの形状シミュレーションモデルと、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記学習済みの形状シミュレーションモデルにより予測される処理後基板の形状データを、目標とする形状データに近づけるように処理条件を絞り込む制御部と
を更に有する、請求項8に記載のデータ収集システム。 - 前記学習済みの形状シミュレーションモデルにより予測される処理後基板の形状データの予測精度に基づいて、前記学習済みの形状シミュレーションモデルを再学習するのに用いる補正後の観測データ及び測定データを収集するための処理条件を絞り込む制御部を更に有する、請求項9に記載のデータ収集システム。
- 前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記学習済みの形状シミュレーションモデルを用いて処理後基板の形状データを予測することで、目標とする形状データとの差分が所定の閾値未満となる処理条件が探索可能か否かを判定する判定部を、更に有する請求項9に記載のデータ収集システム。
- 前記第1の基板処理装置は、前記形状シミュレーションモデル学習部により学習された学習済みの形状シミュレーションモデルを有し、
前記第1の処理空間において処理されることで観測される観測データと、該観測データを前記学習済みの仮想測定モデルに入力することで予測される測定データと、前記第1の処理空間において基板を処理する際の処理条件と、を前記学習済みの形状シミュレーションモデルに入力することで予測された処理後基板の形状データを表示する、請求項8に記載のデータ収集システム。 - 第1の処理空間を有する第1の基板処理装置及び前記第1の処理空間とは異なる第2の処理空間を有する第2の基板処理装置と接続されるデータ収集装置であって、
同一または類似形状の基板が、同一の処理条件のもとで、前記第1の処理空間及び第2の処理空間においてそれぞれ処理されることで観測される観測データを比較し、前記第2の処理空間において処理されることで観測される観測データを補正する補正量を算出する補正量算出部と、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記第2の処理空間において処理されることで観測される観測データを、前記補正量に基づいて補正し、補正後の観測データを収集する収集部と
を有するデータ収集装置。 - 第1の処理空間を有する第1の基板処理装置及び前記第1の処理空間とは異なる第2の処理空間を有する第2の基板処理装置と接続されるデータ収集装置のデータ収集方法であって、
同一または類似形状の基板が、同一の処理条件のもとで、前記第1の処理空間及び第2の処理空間においてそれぞれ処理されることで観測される観測データを比較し、前記第2の処理空間において処理されることで観測される観測データを補正する補正量を算出する工程と、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記第2の処理空間において処理されることで観測される観測データを、前記補正量に基づいて補正し、補正後の観測データを収集する工程と
を有するデータ収集方法。 - 第1の処理空間を有する第1の基板処理装置及び前記第1の処理空間とは異なる第2の処理空間を有する第2の基板処理装置と接続されるデータ収集装置のコンピュータに、
同一または類似形状の基板が、同一の処理条件のもとで、前記第1の処理空間及び第2の処理空間においてそれぞれ処理されることで観測される観測データを比較し、前記第2の処理空間において処理されることで観測される観測データを補正する補正量を算出する工程と、
前記第2の処理空間において処理条件を変えて基板を処理することで処理条件を探索する際、前記第2の処理空間において処理されることで観測される観測データを、前記補正量に基づいて補正し、補正後の観測データを収集する工程と
を有するデータ収集プログラム。
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JP (1) | JPWO2022185969A1 (ja) |
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WO2024080293A1 (ja) * | 2022-10-14 | 2024-04-18 | 東京エレクトロン株式会社 | 情報処理方法、コンピュータプログラム及び情報処理装置 |
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JP2004031671A (ja) * | 2002-06-26 | 2004-01-29 | Dainippon Screen Mfg Co Ltd | 基板処理システムおよび基板処理方法 |
JP2011071296A (ja) * | 2009-09-25 | 2011-04-07 | Sharp Corp | 特性予測装置、特性予測方法、特性予測プログラムおよびプログラム記録媒体 |
JP2019159864A (ja) * | 2018-03-14 | 2019-09-19 | 株式会社日立ハイテクノロジーズ | 探索装置、探索方法及びプラズマ処理装置 |
WO2019182913A1 (en) * | 2018-03-20 | 2019-09-26 | Tokyo Electron Limited | Self-aware and correcting heterogenous platform incorporating integrated semiconductor processing modules and method for using same |
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JP2008034877A (ja) | 2007-10-10 | 2008-02-14 | Hitachi Ltd | 半導体装置の製造方法および製造システム |
JP7018823B2 (ja) | 2018-05-29 | 2022-02-14 | 東京エレクトロン株式会社 | モデル生成装置、モデル生成プログラムおよびモデル生成方法 |
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JP2004025058A (ja) * | 2002-06-26 | 2004-01-29 | Dainippon Screen Mfg Co Ltd | 基板処理システムおよび基板処理方法 |
JP2004031671A (ja) * | 2002-06-26 | 2004-01-29 | Dainippon Screen Mfg Co Ltd | 基板処理システムおよび基板処理方法 |
JP2011071296A (ja) * | 2009-09-25 | 2011-04-07 | Sharp Corp | 特性予測装置、特性予測方法、特性予測プログラムおよびプログラム記録媒体 |
JP2019159864A (ja) * | 2018-03-14 | 2019-09-19 | 株式会社日立ハイテクノロジーズ | 探索装置、探索方法及びプラズマ処理装置 |
WO2019182913A1 (en) * | 2018-03-20 | 2019-09-26 | Tokyo Electron Limited | Self-aware and correcting heterogenous platform incorporating integrated semiconductor processing modules and method for using same |
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WO2024080293A1 (ja) * | 2022-10-14 | 2024-04-18 | 東京エレクトロン株式会社 | 情報処理方法、コンピュータプログラム及び情報処理装置 |
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US20230395411A1 (en) | 2023-12-07 |
KR20230150332A (ko) | 2023-10-30 |
CN116941012A (zh) | 2023-10-24 |
TW202242958A (zh) | 2022-11-01 |
JPWO2022185969A1 (ja) | 2022-09-09 |
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