Controlling method for manufacturing process comprising determining a priority of manufacturing process needing recovery in response to degree of risk

1. A method of controlling a manufacturing process, comprising:

monitoring operating conditions of plural process steps during the manufacturing process;

calculating a degree of risk for each of a malfunction operating condition step and subsequent steps, in accordance with selected data from plural manufacturing control parameters preliminarily obtained under a normal operating condition of the manufacturing process;

determining a priority of the manufacturing process needing recovery in response to the degree of risk for each of the malfunction operating condition step and subsequent steps; and

controlling an operating condition of the manufacturing process responsive to said determining,

wherein the degree of risk is classified into plural levels and is determined in accordance with a risk point on the basis of the following parameters: WIP minimum, WIP actual, WIP target and a weighting factor, wherein WIP is work in progress.

2. The method according to claim 1 , further comprising:

storing information being controlled by a control method for the manufacturing process, into a host computer through a local area network, wherein the information is accessible from a plurality of servers through an intranet.

3. The method according to claim 1 , wherein the risk point is determined as follows:

Risk point=weighting factor×( WIP target− WIP actual)/( WIP target− WIP minimum).

4. The method according to claim 1 , wherein the degree of risk is classified into six levels.