US 7,065,419 B2 · Job flow Petri Net and controlling mechanism for parallel processing

Abstract

The present disclosure provides a job flow system for use in a manufacturing environment, such as a semiconductor fab. The job flow system includes a plurality of sequence-related jobs associated with the manufacturing and a computer-controlled Petri Net structure. The Petri Net structure includes a plurality of agents associated with each of the sequence-related jobs. The Petri Net structure also includes a plurality of application processes to be performed by the agents, one or more description files, and a PN Center for loading the one or more description files and activating a first agent to perform one or more of the application processes in response to the one or more description files and in response to process status information from application processes.

Claims13

Dependent claims

A computerized method for controlling parallel distributed processes in a manufacturing environment, the method comprising the steps of:

providing a plurality of places associated with a plurality of process conditions, wherein each place has at most one input path and at most one output path;
providing a token for identifying the status of at least one of the plurality of process conditions;
connecting the places with a plurality of arcs, the arcs adapted for identifying a route for each token, and wherein each place includes at most one input path and at most one output path;
identifying conditions from the plurality of process conditions for each token to advance along one of the paths to a different place.

1 more element

Dependencies are inferred from the claim text.

Job flow Petri Net and controlling mechanism for parallel processing

Life of this patent

Job flow Petri Net and controlling mechanism for parallel processing

Life of this patent

Abstract

Claims13