Patent ID: 9250623
Filing Date: 2016-02-02
CPC Classification: G05B,H01L,Y02P

Claim Text:
1. A method for fabricating semiconductors utilizing a semiconductor fabrication system, the method comprising the steps of: performing a semiconductor fabrication process on a first lot of unprocessed semiconductor substrates with a semiconductor fabrication equipment unit to form a first lot of processed substrates; communicating processing data regarding the first lot of processed substrates from the semiconductor fabrication equipment unit to a local scheduler and a universal scheduler of the semiconductor fabrication system; determining a processing priority of the first lot of processed substrates and a processing priority of a second lot of unprocessed substrates at the local scheduler and the universal scheduler; and scheduling removal of the first lot of processed substrates from the semiconductor fabrication equipment unit and delivery of the second lot of unprocessed substrates to the semiconductor fabrication equipment unit by either the local scheduler or the universal scheduler based on the processing data and the priority of one or both of the first lot of processed substrates and the second lot of unprocessed substrates, wherein the semiconductor fabrication equipment unit comprises equipment ports for receiving substrates, wherein each equipment port has a vacant or occupied status, wherein the method further comprises communicating the status of each equipment port from the semiconductor fabrication equipment unit to the local and universal schedulers, and wherein the local and universal schedulers schedule removal of processed substrates from the semiconductor fabrication equipment unit and delivery of unprocessed substrates to the semiconductor fabrication equipment unit based on the status of each equipment port.