Push-type scheduling for semiconductor fabrication

Computer-executable process steps for controlling a production line that queues WIP prior to a re-entrant bottleneck processing node, the computer-executable process steps comprising:

• a step of determining whether a cleared trajectory is available for a selected one of the WIP through all processing nodes subsequent to the bottleneck processing node;
• and
• a step of reserving the subsequent processing nodes for the selected WIP in the case that the cleared trajectory is available.

A computer-readable medium on which is stored code for performing computer-executable process steps for controlling a production line that queues WIP prior to a re-entrant bottleneck processing node, comprising:

• code for determining that a cleared trajectory is available for a selected one of the WIP through all processing nodes subsequent to the bottleneck processing node;
• and
• code for reserving the subsequent processing nodes for the selected WIP in the case that a cleared trajectory is available.