Back to results
US 6,556,880 B2Granted
Production schedule planning device and a method of producing a semiconductor device using the same
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsNorihiro Takesako, Kazunori Morinaga, Akihisa Chikamura
Life of this patent
Estimating the term…
Abstract
In a production schedule planning device, a schedule planning unit 4 recognizes a previous schedule as a prerequisite without obtaining a current progress and information of initial setups of processing devices by the schedule planning unit 4, whereby a schedule of a newly thrown lot can be planned without modifying and/or changing the previous schedule.
Claims8
The production schedule planning device comprising:
- a data interface unit for receiving data from an outside;
- a schedule planning unit for planning and calculating a production schedule based on the external data obtained from the data interface unit;
- and a schedule outputting unit for outwardly sending the schedule planned in the schedule planning unit,
- wherein the production schedule planning device has a function of planning a schedule for newly thrown lots without making the schedule planning unit obtain at least one of current progress and/or information of initial setups of processing devices and without at least one of modifying and/or changing a previous schedule by recognizing the previous schedule as a postulate.
1 more element
Dependencies are inferred from the claim text.