20. If the anomaly of misalignment occurs in the storage 20, the substrate 10 cannot be properly stored. As shown in a part P20 in FIG. 7, the controller 70 detects the anomaly of misalignment in the storage 20 based on the captured image P. Specifically, similar to the detection of the anomaly of the shape change, the controller 70 detects the anomaly of misalignment in the storage 20 by comparing the previously set reference image Pa and the captured image P. In other words, the controller 70 detects the anomaly of misalignment in the storage 20 if when a position of the storage 20 changes from a position of the storage 20 at the time of capturing the reference image Pa.

As shown in FIG. 8, an anomaly as detection of a foreign matter occurs in the component of the storage enclosure 102 or the processor 103 in some cases. For example, a chipped piece of the substrate placement part 21 may become a foreign matter in the storage 20. As shown in a part P30 in FIG. 8, the controller 70 detects the foreign matter as an anomaly based on the captured image P. Specifically, similar to the anomalies of the shape change and the misalignment, the controller 70 detects the foreign matter by comparing the previously set reference image Pa and the captured image P.

Here, when capturing an image of the component of the processor 103 to detect an anomaly, the controller 70 brings the image capturer 60 in proximity to the inspection target. In other words, the blade support 32 is brought in proximity to the inspection target so that the image capturer 60 is brought in proximity to the component of the processor 103 that is the inspection target.

When an anomaly is detected in a component of the storage enclosure 102 or the processor 103 that is the inspection target, the controller 70 outputs an anomaly detection signal indicating that the anomaly of the component of the storage enclosure 102 or the processor 103 is detected. Subsequently, if the controller 70 detects the anomaly of the component of the storage enclosure 102 or the processor 103, the communicator 80 outputs the anomaly detection signal to the outside of the substrate-conveying robot 101. For example, the controller 70 outputs the anomaly detection signal to the higher-level control apparatus 105 through the communicator 80. Here, the controller 70 may output the anomaly detection signal to the processor 103.

As shown in FIG. 9, for example, the control apparatus 105 indicates an anomaly detection indication 104a, which indicates that the anomaly is detected, on the display 104 of the substrate processing system 100 in response to the anomaly detection signal output from the controller 70. FIG. 9 is a view illustrating an exemplary indication when an anomaly of the storage 20 is detected in one of the plurality of processors 103. The anomaly detection indication 104a includes an indication of a type of the anomaly detected. The substrate processing system 100 may also stop the operations of the substrate-conveying robot 101 and the processor 103 when the anomaly detection signal is output. Also, the controller 70 may store the captured image P in which the anomaly is detected in the storage device. In this case, a plurality of captured images P that include the captured image P in which the anomaly is detected may be stored as video.

As shown in FIG. 10, the controller 70 detects a sign of an anomaly in the component of the storage enclosure 102 or the processor 103 based on the captured image P. In other words, the controller 70 detects the anomaly that is expected to occur in the component of the storage enclosure 102 or the processor 103. Specifically, the controller 70 detects the sign of the anomaly by comparing the reference image Pa with the captured image P. For example, the substrate placement parts 21 of the storage 20 gradually wear with repeated use in some cases. Accordingly, shape changes of the substrate placement parts 21 are gradually advanced in such a case. When detecting an anomaly of a shape change of each substrate placement part 21 by comparing the reference image Pa with the captured image P, the controller 70 detects a degree of the shape change and also detects a sign of the anomaly based on a degree of the shape change. For example, the controller 70 detects a relatively small degree of the shape change as the sign of the anomaly. The controller 70 outputs an anomaly sign detection signal indicating that the sign of the anomaly is detected to the higher-level control apparatus 105 through the communicator 80. The control apparatus 105 indicates an anomaly sign detection indication 104b, which indicates that the sign of the anomaly is detected, on the display 104 of the substrate processing system 100 in response to the anomaly sign detection signal output from the controller 70. FIG. 10 is a view illustrating an exemplary indication when a sign of an anomaly in the storage 20, which is expected to occur, is detected in one of the plurality of processors 103. The anomaly sign detection indication 104b includes an indication of a type of the sign of the anomaly detected. Also, the control apparatus 105 directs the display 104 of the substrate processing system 100 to indicate a lifetime indication 104c indicating timing of when the anomaly is expected to occur based on the anomaly sign detection signal output from the controller 70. When detecting the sign of the anomaly, the controller 70 predicts a period of time until the anomaly will occur. In other words, when detecting the sign of the anomaly, the controller 70 predicts a lifetime of the component in which the sign of the anomaly is detected. In the lifetime indication 104c, the predicted timing includes date, elapsed time, and number of uses. For example, the controller 70 compares the reference image Pa with the captured image P to predict the period of time until the anomaly will occur based on a degree of comparison. Subsequently, the controller 70 outputs the anomaly sign detection signal including information indicating the lifetime, which is the predicted timing, based on the predicted period of time until the anomaly will occur. The controller 70 detects anomalies and signs of anomalies based on, for example, threshold values stored in the storage device in advance.

Anomaly Detection Method

The following description describes a method for detecting an anomaly of the processor 103 with reference to FIG. 11. For example, processing for controlling the method for detecting the anomaly is periodically executed in the maintenance at a predetermined interval, such as once a day, as described above. The processing for controlling the method for detecting the anomaly is executed by the controller 70. Here, the method for detecting the anomaly is similar to a method for detecting an anomaly of the semiconductor production apparatus such as the storage enclosure 102 other than processor 103.

First, in step S1, an image of at least a component of the processor 103 is captured by the image capturer 60 to detect the anomaly of the processor 103. For example, an image of the storage 20 is captured without no substrate 10 being stored in the storage 20. In a case in which a plurality of storages 20 are included in processors 103, an image of each of the plurality of storages 20 is captured. Images of the storages 20 of the plurality of processors 103 are captured one by one. A captured image P is acquired by capturing an image of the component by using the image capturer 60.

Subsequently, in step S2, the anomaly of the component of the processor 103 is detected based on the captured image P. Specifically, the anomaly of the component of the processor 103 is detected by comparing a reference image Pa, which is previously set, with the captured image P, which is acquired in step S1. Here, in a case in which the plurality of components of the processor 103 are included as inspection targets, a plurality of types of reference images Pa are previously set and stored corresponding to the plurality of inspection targets.

Subsequently, in step S3, it is determined whether the anomaly is detected in the component of the processor 103. If the anomaly is detected in the component of the processor 103, the procedure goes to step S4. If the anomaly is not detected in the inspection target, the procedure goes to step S5.

In step S4, based on the detected anomaly, an anomaly detection signal indicating that the anomaly is detected is output. The anomaly detection signal is transmitted to the higher-level control apparatus 105 of the substrate processing system 100 through the communicator 80, for example. Subsequently, the anomaly detection indication 104a indicating that the anomaly is detected is indicated on the display 104 by the control apparatus 105.

In step S5, it is determined based on the captured image P whether a sign of an anomaly that is expected to occur in the component of the processor 103 is detected. If the sign of the anomaly is detected, the procedure goes to step S6. If the sign of the anomaly is not detected, the processing for controlling the method for detecting the anomaly ends.

In step S6, the anomaly sign detection signal indicating that the sign of the anomaly is detected is output. The anomaly sign detection signal is transmitted to the higher-level control apparatus 105 of the substrate processing system 100 through the communicator 80, for example. Subsequently, the anomaly sign detection indication 104b indicating that the sign of the anomaly predicted is detected and the lifetime indication 104c are indicated on the display 104 by the control apparatus 105.

Advantages of First Embodiment

In the first embodiment, the following advantages are obtained.

The substrate processing system 100 includes the image capturer 60 for capturing an image of at least a component of the storage enclosure 102 or the processor 103 for performing at least one of conveyance of the substrate 10, application of processing to the substrate and storing the substrate to detect an anomaly in the storage enclosure 102 or the processor 103; and a controller 70 for detecting the anomaly of the component of the storage enclosure 102 or the processor 103 based on the captured image P captured by the image capturer 60. Accordingly, the captured image P used to detect an anomaly of the storage enclosure 102 or the processor 103 can be acquired by capturing the image of at least the component of the storage enclosure 102 or the processor 103 to detect the anomaly of the storage enclosure 102 or the processor 103. Consequently, it is possible to detect an anomaly of the semiconductor production apparatus for performing at least one of conveyance of the substrate 10, application of processing to the substrate 10 and storing the substrate 10 based on the captured image P acquired.

The controller 70 detects an anomaly including at least one of shape change of the component of the storage enclosure 102 or the processor 103, misalignment of the component of the storage enclosure 102 or the processor 103, and detection of a foreign matter based on the captured image P. Accordingly, it is possible to detect an anomaly including at least one of shape change of the component of the storage enclosure 102 or the processor 103, misalignment of the component, and detection of a foreign matter. Consequently, it is possible to prevent an anomaly from occurring in the conveyance or processing of the substrate 10 due to at least one of the shape change, the misalignment of the component, and the foreign matter.

The substrate-holding hand 30 includes the blade 31 on which the substrate 10 is placed and the blade support 32 for supporting the blade 31, and the image capturer 60 is arranged in the blade support 32. Accordingly, since the image capturer 60 is arranged in the blade support 32 of the substrate-holding hand 30 for holding the substrate 10, the image capturer 60 can be moved by a configuration for moving the substrate-holding hand 30 for conveying the substrate 10. As a result, in a case in which a plurality of components of the storage enclosure 102 and the processor 103 that are inspection targets are included, or in a case in which a component of the storage enclosure 102 or the processor 103 that is an inspection target is larger than a field of view of the image capturer 60, the image capturer 60 can be moved by the configuration for moving the substrate-holding hand 30. Consequently, it is possible to prevent an apparatus configuration from becoming complicated dissimilar to a case in which a configuration that moves only the image capturer 60 is separate provided. Also, since the image capturer 60 is arranged not in the blade 31 on which the substrate 10 is placed but in the blade support 32 for supporting the blade 31, it is possible to prevent physical interference of the image capturer 60 with the substrate 10 when the substrate 10 is placed on the blade 31.

The image capturer 60 captures an image of the component of the processor 103, which is the storage 20 for storing the substrate 10 in the processor 103, and the controller 70 detects an anomaly of the storage 20 based on the captured image P. Accordingly, it is possible to detect the anomaly in the storage 20. Consequently, it is possible to prevent an anomaly from occurring in the conveyance of the substrate 10 to the processor 103 due to the anomaly of the storage 20.

The storage 20 includes the substrate placement part 21 on which the substrate 10 is placed; the image capturer 60 captures an image of the substrate placement part 21 without the substrate 10 being placed; and the controller 70 detects an anomaly in the substrate placement part 21 without the substrate 10 being placed based on the captured image P. Here, in a case in which an anomaly occurs in the substrate placement part 21 of the storage 20, it is difficult to accurately store the substrate 10 in the storage 20. In such a case, it can be considered that an anomaly will occur in processing applied to the substrate 10 by the processor 103. To address this, in the first embodiment, the image capturer 60 captures an image of the substrate placement part 21 without the substrate 10 being placed, and the controller 70 detects an anomaly in the substrate placement part 21 without the substrate 10 being placed based on the captured image P. Accordingly, since an anomaly of the substrate placement part 21 can be detected, it is possible to effectively prevent an anomaly from occurring in the conveyance of the substrate 10 to the processor 103 or in the processing applied to the substrate 10 by the processor 103. Also, dissimilar to a case in which an image of the substrate placement part 21 is captured with the substrate 10 being placed on the substrate placement part, since an image of the substrate placement part 21 is captured without the substrate 10 being placed on the substrate placement part, it is possible to prevent that the substrate placement part 21 is hidden by the substrate 10 in the captured image P. Consequently, it is possible to more accurately detect an anomaly of the substrate placement part 21.

The controller 70 detects an anomaly of the component of the storage enclosure 102 or the processor 103 by comparing the previously set reference image Pa with the captured image P captured by the image capturer 60. Accordingly, an area in the captured image P that is different from the reference image Pa can be easily detected by comparing the reference image Pa with the captured image P. Consequently, the area in the captured image P that is different from the reference image Pa can be easily detected as an anomaly.

The substrate processing system 100 includes the communicator 80 that outputs an anomaly detection signal indicating that an anomaly is detected in the component of the storage enclosure 102 or the processor 103 when the controller 70 detects an anomaly of a component of the storage enclosure 102 or the processor 103. Accordingly, an informer, such as the display 104, which is different from the controller 70, can inform operators that the anomaly is detected. Consequently, since the operators can easily recognize that the anomaly has occurred, they can prevent that the storage enclosure 102 or processor 103 is used with the anomaly being occurring.

The controller 70 detects a sign of an anomaly in a component of the storage enclosure 102 or the processor 103, and predicts a period of time until the anomaly will occur based on the captured image P. Accordingly, since the sign of the anomaly can be detected, it is possible to carry out measures against the sign of the anomaly of the component such as to repair or replace the component in a time period out of usage of the storage enclosure 102 or the processor 103 before occurrence of an anomaly that causes the storage enclosure 102 or the processor 103 to necessarily stop its usage. Consequently, it is possible to prevent occurrence of the anomaly in usage of the storage enclosure 102 or the processor 103, it is possible to prevent stoppage of at least one of conveyance of the substrate 10, application of processing to the substrate 10 and storing the substrate 10. As a result, it is possible to prevent increase of time required for at least one of conveyance of the substrate 10, application of processing to the substrate 10 and storing the substrate 10.

The controller 70 detects an anomaly of a component of the storage enclosure 102 or the processor 103 based on the captured images P that are captured at a predetermined interval. Accordingly, since the anomaly of the component of the storage enclosure 102 or the processor 103 can be periodically detected at the predetermined interval, it is possible to effectively prevent that the storage enclosure 102 or processor 103 is used with the anomaly being occurring.

Second Embodiment

The following description describes a configuration of a substrate processing system 200 according to a second embodiment of the present disclosure with reference to FIGS. 12 and 13. In this second embodiment, when an anomaly of the storage 20 is detected, a state of the substrate 10 is detected. The same components as those of the first embodiment are denoted by the same reference numerals, and their description is omitted.

As shown in FIG. 12, the substrate processing system 200 according to the second embodiment includes a substrate-conveying robot 201. Also, the substrate-conveying robot 201 includes a controller 270. The controller 270 has a hardware configuration similar to the controller 70 according to the first embodiment. In other words, the substrate-conveying robot 201 has a hardware configuration similar to the substrate-conveying robot 101 according to the first embodiment. The substrate processing system 200 is an example of a semiconductor production apparatus system.

Similar to the controller 70 according to the first embodiment, the controller 270 detects an anomaly of a component of the storage enclosure 102 or the processor 103 based on a captured image P captured by the image capturer 60. For example, similar to the first embodiment, the controller 270 detects an anomaly of the storage 20, which is a component of the processor 103, by comparing the previously set reference image Pa with the captured image P of the storage 20 captured.

As shown in FIG. 13, in the second embodiment, the controller 270 detects the state of the substrate 10 stored in the storage 20 based on the captured image P if the anomaly of the storage 20 is detected.

For example, in a case in which the substrates 10 are conveyed one by one from the storage enclosure 102 to the storage 20 of the processor 103, the controller 270 detects the anomaly of the storage 20 to which each substrate is conveyed. The controller 270 detects an anomaly of the substrate placement parts 21 of the storage 20 to which the substrates are conveyed every when each substrate is conveyed or every when a predetermined number of substrates 10 are conveyed. In this case, a captured image P that is captured at one anomaly detection operation previous to the current anomaly detection operation may be used in each anomaly detection operation as the reference image Pa. If detecting an anomaly in the storage 20 during conveyance of the substrate 10, the controller 270 outputs an anomaly detection signal similar to the first embodiment. A part P210 shown by a single-dotted line in FIG. 13 illustrates an anomaly of one of the substrate placement parts 21 of the storage 20 that is missing.

The controller 270 detects the state of the substrates 10 that have been stored in the storage 20 when detecting the anomaly of the storage 20. Parts P220 shown by the dotted lines in FIG. 13 illustrate detection of the substrates 10 in the storage 20. The controller 270 detects storage states including placement positions and shapes of the substrates 10 as the states of the substrates 10 stored in the storage 20 when detecting the anomaly of the storage 20.

The controller 270 moves the substrate-holding hand 30 based on the detected states of the substrates 10 by operating the arm 40 and the upward/downward mover 50 to convey the substrate 10 stored in the storage 20 out of the storage 20. For example, in a case in which one of the substrate placement parts 21 is missing, the substrate 10 is stored in a tilted state as shown in FIG. 13. In other words, the anomaly of the storage 20 may make the storage state of the one substrate 10 different from a normal storage state. The controller 270 conveys the substrate 10 that is not in the normal storage state out of the storage 20 by moving the substrate-holding hand 30 based on the detected states of the substrates 10. In other words, the controller 270 retrieves the substrates 10 whose storage state is detected as an anomalous state from the storage 20 by detecting the state of the substrate 10. The controller 270 conveys the substrate 10 out of the storage by moving the substrate-holding hand 30 based on the detected states of the substrates 10 while preventing interference of the substrate-holding hand with the substrate 10. After leaving out the substrate 10 whose storage state is anomalous, the controller 270 may continue the conveyance operation of the substrate 10 while avoiding the part of the storage 20 that is detected as anomalous, or may stop the conveyance operation of the substrate 10. Even when detecting an anomaly of the storage 20, the controller 270 continues to convey the substrates 10 if the states of the substrates 10 are normal. In other words, even when an anomaly of the storage 20 is detected, the processor 103 applies processing to the substrates 10 if the states of the substrates 10 are normal.

The other configuration of the second embodiment is similar to the first embodiment.

Advantages of Second Embodiment

In the second embodiment, the following advantages are obtained.

The controller 270 detects a state of the substrate 10 stored in the storage 20 based on a captured image P if an anomaly of the storage 20 is detected. Here, the anomaly of the storage 20 may make the state of the substrate 10 stored in the storage 20 different from a normal state. To address this, in the second embodiment, the controller detects the state of the substrate 10 stored in the storage 20 based on the captured image P if the anomaly of the storage 20 is detected, and as a result it is possible to convey the substrate 10 that is stored with being tilted from its normal state or two substrates 10 that are stored with one of the two substrates being stacked on another out of the storage 20, for example. Also, it is possible to confirm whether any of the substrate 10 stored in the storage 20 is brought in an anomalous state if the anomaly of the storage 20 is detected. Consequently, even when the anomaly is detected in the storage 20, since processing in the processor 103 can continue if the states of the substrates 10 are normal, it is possible to prevent the processing applied to the substrate 10 from being interrupted. The other advantages of the second embodiment are similar to the first embodiment.

Modified Embodiments

Note that the embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present disclosure is not shown by the above description of the embodiments but by the scope of claims for patent, and all modifications (modified embodiments) within the meaning and scope equivalent to the scope of claims for patent are further included.

While the example in which an anomaly including at least one of shape change of the component of the storage enclosure 102 or the processor 103, misalignment of the component of the storage enclosure 102 or the processor 103, and detection of a foreign matter is detected based on the captured image P has been shown in the aforementioned first and second embodiments, the present disclosure is not limited to this. In the present disclosure, consumption of a consumable such as an electrode or solution used for processing in the processor may be detected as the anomaly.

While the example in which the image capturer 60 is arranged in the blade support 32 of the substrate-holding hand 30 has been shown in the aforementioned first and second embodiments, the present disclosure is not limited to this. In the present disclosure, the image capturer may be arranged in the arm for moving the substrate-holding hand. Also, the image capturer may be arranged in the base to which the arm is connected.

While the example in which the image capturer 60 is arranged on an upper side of the blade support 32 in the substrate-holding hand 30 in the vertical direction has been shown in the aforementioned first and second embodiments, the present disclosure is not limited to this. In the present disclosure, the image capturer may be arranged on a lateral side of the blade support. Also, the image capturer may be arranged on a lower side of the blade support.

While the example in which an anomaly of the storage 20 is detected as detection of an anomaly in a component of the processor 103 has been shown in the aforementioned first and second embodiments, the present disclosure is not limited to this. In the present disclosure, an anomaly in a component such as equipment of the processor other than the storage may be detected. Also, not an anomaly of a component of the processor but an anomaly of a component of the storage enclosure for storing the substrates may be detected. Also, an anomaly of a component of a conveyor apparatus for conveying the substrates may be detected.

While the example in which the anomaly in the substrate placement part 21 without the substrate 10 being placed is detected by capturing an image of the substrate placement part 21 without the substrate 10 being placed has been shown in the aforementioned first embodiment, the present disclosure is not limited to this. In the present disclosure, the anomaly in the substrate placement part with the substrate being placed may be detected by capturing an image of the substrate placement part with the substrate being placed. In other words, an anomaly in the storage may be detected with the substrate being stored. For example, when a substrate is conveyed from the storage enclosure to the storage of the processor, an anomaly in the storage enclosure may be detected with the substrate being stored before conveyed.

While the example in which a state of the substrate 10 stored in the storage 20 is detected based on a captured image P if an anomaly of the storage 20 is detected has been shown in the aforementioned second embodiment, the present disclosure is not limited to this. In the present disclosure, an anomaly only of the component of the semiconductor production apparatus may be detected without detecting the state of the substrate.