Patent ID: 11955358
Assignee: APPLIED MATERIALS, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  C  G | IPC C  G  H

Claim 0:
1. A method of detecting failure causes in semiconductor processing systems, the method comprising:
receiving an indication of a failure in a semiconductor processing system;
providing the indication of the failure as a query to a network representing the semiconductor processing system, wherein the network comprises:
a plurality of nodes representing on-wafer effects and component functions;
a plurality of relationships between the plurality of nodes, wherein the plurality of relationships represent causal dependencies between the component functions and the on-wafer effects;

calculating a change in probabilities assigned to nodes representing the component functions in the plurality of nodes resulting from the query; and
generating, based on the change in probabilities, an output indicating a probability of at least one of the component functions as a cause of the failure in the semiconductor processing system.