Method for limiting distribution and scheduling for solving machine changing problem

Abstract

The invention relates to a method for limiting distribution and scheduling for solving a machine changing problem, which particularly aims to a machine changing phenomenon or a changeover phenomenon existed in the post-segmental manufacturing process of a semiconductor since the different packaging appearances can select the same equipment and different processing materials or different clamping apparatuses. The method comprises the following steps of step 1: initialization; step 2: turning to step 3 if the undistributed equipment set is not null; turning to step 4 if the undistributed equipment set is null; step 3: counting the total quantity of the equipment with the same processing condition delta h and calculating the allowable maximum equipment distribution quantity with the processing condition of delta h; step 4: respectively considering the situations whether meet a formula (2); and step 5: ending the distribution of the procedure if the processing risk set is null, entering distribution of the next procedure, or, returning to the step 2. With the adoption of the method provided by the invention, the problems that the loss of time, cost and the like and unbalance utilization of the equipment caused by the unreasonable machine changing can be solved, the occurrence of frequent machine changing phenomena can be avoided and the overall utilization of the equipment can be improved.

Description

technical field [0001] The invention relates to a limited allocation and scheduling method for solving the machine modification problem, and is specifically aimed at machine modification or replacement caused by the same optional equipment for different packages, different processing materials, or different tooling and fixtures in the back-end manufacturing process of semiconductors. production phenomenon. Background technique [0002] With the improvement of the degree of automation and information in the manufacturing industry, the implementation of information-based production organization management and optimal decision-making has become an urgent need for the rapid development of the manufacturing industry. Production scheduling is a key module of production organization management, whether its arrangement is effective and reasonable directly affects the economic benefits of the enterprise. At present, the research on production scheduling has reached its heyday in the...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a method that can solve the problems of loss of time, cost and other costs and unbalanced equipment utilization caused by unreasonable machine changes, avoiding frequent machine changes, and at the same time improving the overall quality of the equipment. Utilization Bound Allocation Scheduling Method

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