Patent ID: 11946470
Assignee: EBARA CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  G  Y | IPC F  G

Claim 8:
9. An information processing apparatus detecting presence or absence of abnormality of a vacuum pump derived from a product produced within a target vacuum pump, comprising:
one or more processors configured to determine a normal variation range or a normal time variation behavior of a target state quantity which is a state quantity varying depending on a load of gas flowing into the vacuum pump, based on at least one of past target state quantities of the target vacuum pump or another vacuum pump; and
the one or more processors configured to compare a current target state quantity of the target vacuum pump with the normal variation range or the normal time variation behavior and output the comparison result,
wherein the one or more processors determine the normal variation range of the target state quantity for each of a plurality of sub-processes using the past target state quantity of the target vacuum pump or the past target state quantity of the other vacuum pump as the target state quantity which is the state quantity varying depending on a load of gas flowing into the vacuum pump, the plurality of sub-processes being in one substrate processing process, each of the plurality of sub-process being one of a preparing process, a film forming process, or a post-process, the normal variation range of the target state quantity being determined for each of the plurality of sub-processes, and
the one or more processors compare a target state quantity of an operating target vacuum pump with the normal variation range for each process to detect an abnormality data deviating from the normal variation range, and
wherein the one or more processors are configured to determine a pump state judgment criterion for judging a failure possibility or an operation continuation possibility or a warning determination criterion for determining whether to output a warning, based on a statistical value of a target parameter related to the number of abnormality occurrences in a target process or all processes depending on whether the vacuum pump fails.