Dispatching method of manufacturing integrated circuit

A two-way dispatching method of manufacturing IC, while a plurality of lots of wafers with a plurality of priorities are manufactured in a process by a plurality of equipments, uses to determine a dispatching order in a plurality of work units, wherein the process is composed of the work units, the two-way dispatching method of manufacturing IC comprising:

• performing a first push step, a first lots of wafers with a compulsory order is dispatched into these workstation, wherein the first lot of wafers is comprised in the lots of wafers;
• calculating a plurality of first capacities and a plurality of first deficiencies of these equipments;
• performing a pull step, if a mount of lots of wafers manufactured in a first work unit of the work units is not filled to a first full load and has a first vacancy, then a second lot of wafers having the same amount as the first vacancy of the first work units is dispatched to a second work units, in front of the first work unit, wherein the second lot of wafers is included in the lots of wafers;
• calculating a plurality of capacities and a plurality of second deficiencies of these equipments;
• and
• performing a second push step, dispatching the lots of wafers into the work units, which is not filled the second full load.

A dispatching method of wafers of manufacturing IC, while a plurality of lots of wafers are manufactured in a process in a plurality of workstations of a plurality of stages by a plurality of equipments, the dispatching method of wafers of manufacturing IC comprising:

• providing a database, wherein the database has a plurality of process data of the lots of wafers of the workstations;
• determining a plurality of lots of wafers by using the process data;
• gathering a plurality of capacity limits of the equipments from a capacity scheme system;
• gathering a plurality of standard amount of wafers which can be manufactured in the equipments according to the capacity scheme system;
• calculating a plurality of deficiencies of the equipments by the standard amount of wafers;
• Performing the two-way dispatching method to dispatch the lots of wafers by the priorities, the capacity limits of the equipments, and the deficiencies of the equipments, the two-way dispatching method comprising:
• performing a first push step;
• performing a first pull step;
• performing a second pull step;
• performing a second push step;
• and
• printing a dispatching list according to the result of the two-way dispatching method.