JP2001209424A - Lot judging method, lot judging system and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lot judging method, a lot judgment system and its recording medium which can automatically conduct lot judgment for an original lot even when the work is conducted for every separated lot. SOLUTION: The lot judging method conducts a lot judgment being success or failurde judgment regarding quality control decided by an yield and defect occurrence rate in the arbitrary process to a plurality of separated lot coming from the separation of one product lot. Advanced status in the process of every separated lot is monitored, after the process work completion of separated log, every aquired result data including the number of good quality article and the number of bad quality article is recorded, after the work completion report of the process to the last work finished separated lot is reported, all result data obtained corresponding to the separated lot are summed up and the lot judgment of the product lot is conducted based upon summed up data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lot judging method and a lot judging system for judging the quality control of a divided product lot from the results of each operation on the lot, and a lot judging system.

[0002]

2. Description of the Related Art This kind of lot judging system, as one of the functions of a production control system for performing production control, automatically judges pass / fail of quality control from a product yield or an occurrence failure rate in an arbitrary manufacturing process. (Hereinafter referred to as a lot determination) system.

In the conventional lot determination system, lot determination is performed by the production control system for each lot for which the end of work has been reported. From the viewpoint of production efficiency, for example, one product lot may be divided into a plurality of separation lots, and operations such as processing and inspection may be performed on each of them in a predetermined process. In this case, the conventional lot determination system performs the lot determination for each separated lot.

[0004]

In the conventional lot determination system as described above, the progress of the process is managed for each separation lot, but it is checked whether or not all the predetermined processes have been completed for each separation lot. Therefore, it is necessary to confirm the end of the work by an operator before determining the lot of the product lot. Therefore, the lot judgment of the product lot cannot be performed at the same time as the work completion report,
When the result of the lot determination is defective, there is a problem that the response is delayed.

[0005] Further, if the work is performed in units of separated lots, the operator must determine whether or not to perform the lot judgment of the original lot (the above-mentioned product lot) before separation.
There is also a problem that the number of man-hours of the worker increases.

[0006] Even if the production control system can recognize that the lot determination should be performed on the product lot, the conventional lot determination system uses the number of non-defective products and the number of defective products obtained from the operation result for each separated lot. Since it does not have the function of totalizing the actual data such as inspection analysis information and making a lot judgment, the operator collects the actual data of all the separated lots separately from the normal work and aggregates them. After creating the actual data of the product lot, it was necessary to make a lot judgment.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and a lot capable of automatically determining a lot of a product lot even when working for each separated lot. An object of the present invention is to provide a determination method, a lot determination system, and a storage medium therefor.

[0008]

In order to achieve the above object, a lot judging method according to the present invention is applied to a plurality of separated lots obtained by dividing one product lot, based on a yield and an occurrence defect rate in an arbitrary process. A lot determination method for performing a lot determination that is a pass / fail determination in quality control to be determined,
The progress in the process for each separation lot is monitored, and actual data including the number of non-defective products and the number of defective products obtained after the operation of the process for the separation lot is respectively recorded. This is a method in which, at the same time as the work completion report of the process for the lot, all of the actual data obtained respectively corresponding to the separated lots are totaled, and the lot determination of the product lot is performed based on the totaled result.

[0009] At this time, the determination of the lot of the product lot may be performed after completion of the work of the plurality of processes for the separation lot.

A lot determination system for performing a lot determination, which is a pass / fail judgment in quality control determined from a yield and an occurrence defect rate in an arbitrary process, for a plurality of separated lots formed by dividing one product lot. A lot progress management means for monitoring the progress in the process for each of the separated lots, and a record for recording the result data including the number of non-defective products and the number of defective products obtained after the operation of the process for the separated lots is completed. A data storage unit, a lot determination accumulating means for totalizing all of the performance data obtained corresponding to each of the separated lots at the same time as the work completion report of the process for the separated lot whose work is completed lastly; Lot determination means for performing the lot determination of the product lot based on the result obtained.

Further, the recording medium of the present invention is a quality control pass / fail judgment for a plurality of separated lots formed by dividing one product lot, which is determined from a yield and an occurrence failure rate in an arbitrary process. A non-defective product obtained by recording a program for causing a computer to execute a lot determination, wherein the progress of the process in each of the separated lots is monitored, and the progress of the process for the separated lot is completed. And record the actual data including the number of defective products, respectively, and at the same time as the work completion report of the process for the separated lot whose work has been completed at the same time, make all the actual data obtained respectively corresponding to the separated lot tally, A program for executing the lot determination of the product lot based on the totaled result is recorded. It is.

At this time, a program for executing the lot determination of the product lot after completion of the work of the plurality of processes for the separation lot may be recorded.

In the lot determination method, the lot determination system, and the storage medium as described above, the actual data obtained after the completion of the work is recorded for each separated lot, and the work corresponding to each separated lot is performed after the work for all the separated lots is completed. By summing up the actual data obtained and determining the lot of the product lot based on the summed result, even if the product was worked for each separated lot, the work was completed for the last separated lot The lot judgment of the product lot can be performed simultaneously with the report.

Further, the operator does not need to check the progress of each separation lot and judge whether or not the lot judgment of the product lot is possible. Further, there is no need to total the actual data of each separated lot.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

(First Embodiment) FIG. 1 is a block diagram showing a configuration of a first embodiment of a lot determination system according to the present invention.

As shown in FIG. 1, the lot determination system has a configuration in which a plurality of facilities for processing or inspecting a product are connected to a production control system 1 for managing production of each facility. FIG. 1 shows a configuration in which the production control system 1 performs production management of three facilities, a first facility 5, a second facility 6, and a third facility 7.

The production control system 1 includes a data processing device 2 for performing processing for lot determination, and an input for inputting data to the data processing device 2 and displaying the data from the data processing device 2 in a printable manner. An output terminal device 3,
A storage device 4 for recording performance data including the number of non-defective products, the number of defective products, and inspection analysis information.

The data processing device 2 includes a lot progress management unit 21 for managing lot progress based on lot in-process and work history, and a separation lot management unit 22 for managing information on separated lots, such as the separation status of product lots. A lot judging means 23 for judging pass / fail in quality control based on a product yield and a defective rate of occurrence in each facility, and a lot judging and counting means 24 for counting actual data for each separated lot. It is assumed that the conditional expression and the determination criterion for performing the lot determination are registered in the lot determination unit 23 in advance.

The storage device 4 includes a performance data storage device 41 for recording performance data for each separated lot. The performance data storage unit 41 stores the number of non-defective products, the number of defective products, and inspection analysis information obtained after the work is completed. Actual data is recorded for each lot.

The first equipment 5 transfers the actual work data to the first equipment part 51 for actually processing or inspecting the product and the data processing device 2, and the lot judgment result from the data processing device 2. Terminal device section 52 for displaying
And Similarly, the second facility 6 includes a second facility unit 61 and a second terminal unit 62, and the third facility 7
Has a third equipment unit 71 and a third terminal device unit 72.

Next, the operation of the lot judging system of this embodiment will be described with reference to FIG. 1 and FIG.

FIG. 2 is a flowchart showing a processing procedure of the lot determination system shown in FIG. In the following, when performing the operation of the process B, for example, the lot A is divided into three units from the viewpoint of production efficiency,
Description will be made assuming that the work is performed in the second facility 6 and the third facility 7, respectively.

In FIG. 2, first, the operator uses the input / output terminal device 3 to indicate that the product lot A has been separated into three lots.
(Step S1).

The lot progress management means 21 and the separation lot management means 22 register that the lot A has been separated into three and the separation lot A1, the separation lot A2, and the separation lot A3 have been generated.

In such a state, the operation of the process B is performed in each of the first equipment 5 to the third equipment 7 (step S2).

Next, of the separation lots A1 to A3, first, when the work of the step B for the separation lot A1 is completed, the operator separates the work into the lot progress management means 21 using the first terminal unit 52. It reports that the work of lot A1 has been completed (step S3).

The lot progress management means 21 includes a separation lot A
The fact that the process B for No. 1 has been completed is reported to the separation lot management means 22 (step S4), and the result data such as the number of non-defective products, the number of defective products, and the inspection analysis information obtained from the operation result of the separation lot A1 is stored in the result data storage unit 41. Recording is performed (step S5).

Subsequently, the separation lot management means 22 determines whether or not the operation of the process B for the other separation lots (A2 and A3) has been completed (step S6).

Here, since the work of the process B for the separation lots A2 and A3 has not been completed, it is determined that the lot determination of the product lot A before separation is not performed, and the result is reported to the lot determination means 23. .

The lot determination means 23 performs a lot determination using the actual data of only the separated lot A1 (step S7). The first terminal device 52 determines the lot determination result of the separated lot A1 and the lot for the product lot A. Report that no decision was made.

The first terminal device 52 displays the received lot judgment result and the non-execution of the lot judgment for the product lot A, respectively (step S8). The production control system 1 returns to the processing of step S2 and performs the work of step B. To continue.

Next, when the operation of the process B for the separation lot A2 among the separation lots A1 to A3 is completed, the operator uses the second terminal unit 62 to perform the lot progress management means 2.
1 to report that the work of separation lot A2 has been completed.
(Step S3).

The lot progress management means 21 includes the separated lot A
The completion of the operation of the process B with respect to No. 2 is reported to the separation lot management means 22 (step S4), and the number of non-defective products obtained from the operation result of the separation lot A2 is
Record actual data such as the number of defective products and inspection analysis information (step S5).

Subsequently, the separation lot management means 22 determines whether or not the operation of the process B for the other separation lots (A1 and A3) has been completed (step S6). Here, since the operation of the process B for the separation lot A3 has not been completed, it is determined that the lot determination of the product lot A before separation is not performed, and the result is reported to the lot determination unit 23.

The lot determining means 23 performs a lot determination using the actual data of only the separated lot A2 (step S7). The second terminal unit 62 determines the lot determination result of the separated lot A2 and the lot for the product lot A. Report that no decision was made. The second terminal device 62 displays the received lot determination result and the non-performance of the lot determination for the lot A (step S8), and the production control system 1 returns to the process of step S2 and continues the operation of the process B.

Next, when the work on the separation lot A3 among the separation lots A1 to A3 is completed, the operator uses the third terminal unit 72 to cause the lot progress management means 21 to finish the work on the separation lot A3. Is reported (step S3).

The lot progress management means 21 includes the separation lot A
The completion of the operation of the process B with respect to No. 3 is reported to the separation lot management means 22 (step S4).
Record actual data such as the number of defective products and inspection analysis information (step S5).

Next, the separation lot management means 22 determines whether or not the work of the process B for the other separation lots (A1 and A2) has been completed (step S6).

Here, since the work of the process B for all the separation lots A1 to A3 has been completed, the separation lot management means 22 determines the lot of the separation lot A3 as well as the lot of the product lot A before separation. Is required to be performed, and a report is made to the lot determination means 23.

The lot judging means 23 instructs the lot judging and counting means 24 to sum the actual data of the separated lots A1 to A3. The counting is performed (step S9).

The lot judging means 23 executes the lot judgment of the product lot A by using the lot judgment of the separated lot A3 and the total data obtained from the lot judgment totaling means 24 (step S10). The lot determination result of the separation lot A3 and the lot determination result of the product lot A are transmitted to the unit 72.

The third terminal unit 72 displays the received lot determination result of the separated lot A3 and the received lot determination result of the product lot A (step S11).

Therefore, according to the lot judging system of this embodiment, after the operation for all the separated lots is completed,
Aggregate the actual data obtained for each separated lot,
Since the lot judgment of the product lot is performed based on the totaled result, even if the product is operated in units of separated lots, the lot judgment of the product lot is performed at the same time as the work end report for the last separated lot. be able to. Therefore, even if the result of the lot determination is defective, it is possible to respond quickly.

Further, the operator does not need to check the progress of each separation lot to determine whether or not the lot determination of the product lot is possible, and also eliminates the need to total the actual data of each separation lot. Therefore, the number of man-hours for the worker can be reduced.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a block diagram showing the configuration of a second embodiment of the lot determination system of the present invention.

As shown in FIG. 3, the lot judging system according to the present embodiment includes, in the data processing apparatus according to the first embodiment shown in FIG. 1, a lot judging execution determining means 25 for judging whether to judge a lot. This is the added configuration. Other configurations are first
The description is omitted because it is the same as the embodiment.

The lot judging execution determining means 25 causes the lot judging means to execute the lot judgment based on the actual data obtained from the operation results of a plurality of processes for the product lot. Each time a determination is made, a determination condition for determining whether or not to perform a lot determination, which is registered in advance, is checked, and when the determination condition is satisfied, the lot determination unit performs the lot determination of the product lot. . At this time, the lot determination means extracts necessary performance data from the performance data storage unit using the lot determination and tallying means, and performs lot determination using the tally data.

Next, the operation of the lot judging system according to the present embodiment will be described with reference to FIG. 4 while referring to FIG.

FIG. 4 is a flowchart showing a processing procedure of the lot determination system shown in FIG. In the following, similarly to the first embodiment, the product lot A is separated into three separated lots A1 to A3, and the first equipment, the second equipment,
And the third facility. Further, it is assumed that determination conditions are set in advance in the lot determination execution determining means such that the lot determination is performed based on the actual data obtained from the operation results of the two processes of the process B and the subsequent process C. .

In FIG. 4, first, as in steps S1 to S9 of the first embodiment, the processes of steps S21 to S29 are performed for the work of the process B.

When all the operations in the process B for the separated lots A1 to A3 are completed, the lot determination means performs the lot determination of the lot A using the actual data obtained from the operation results of the process B (step S30).

Next, the lot determination execution determining means 25 determines whether or not all the processes set in the lot determination conditions have been completed (step S32).

Here, since the work of the process C has not been completed yet, the lot determination execution determining means 25 outputs the product lot A
It is determined that there is no need to perform the lot determination, and the process proceeds to step S34, where the lot determination result of the product lot A in the process B is transmitted from the lot determination unit to the third terminal unit.

The third terminal unit receives the received product lot A.
Is displayed. At this time, the worker
That the work of the process B has been completed is reported to the lot progress management means using the terminal device section of (1).

Subsequently, similarly to the processing of S2 to S8 of the first embodiment, the work of the process C is performed in steps S22 to S28.
Is performed.

When all the operations of the process C for the separation lots A1 to A3 are completed, the lot determination means performs the lot determination of the product lot A using the actual data obtained from the operation result of the process C (step S30).

Next, the lot determination execution determining means 25 determines whether or not all the processes set in the lot determination conditions have been completed (step S31).

In this case, since the operations of the process B and the process C have been completed, the lot determination execution determining means 25 performs the lot determination by using the total result of the actual data of the processes B and C as the lot determining means. To instruct.

The lot judging means instructs the lot judging and counting means to sum up the actual data of the separated lots A1 to A3, and the lot judging and counting means extracts necessary data from the actual data storage unit and sums them (step S1). S32).

The lot judging means performs the lot judgment of the product lot A in the process C and the lot judgment of the product lot A in the process B and the process C by using the tabulated data obtained from the lot judgment tabulating means. Step S3
3) The lot determination result of the product lot A in the process C and the lot determination result of the product lot A in the process B and the process C are transmitted to the third terminal device 62. Third
The terminal device unit 62 displays the received lot determination result of the product lot A in the process C and the received lot determination result of the lot A in the process B and the process C (step S34).

Therefore, according to the lot judging system of the present embodiment, the same effects as those of the first embodiment can be obtained even when a plurality of processes are performed for each separation lot.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 5 is a block diagram showing the configuration of the third embodiment of the lot determination system of the present invention.

As shown in FIG. 5, the lot judging system of this embodiment is a lot judging system for causing a data processing device, which is a computer, to perform the same lot judging process as that of the first or second embodiment. The configuration includes a recording medium 8 on which a program is recorded. The recording medium 8 is formed of a magnetic disk, a semiconductor memory, or another storage medium.

The lot determination program is read from the recording medium into the data processing device, and the data processing device reads the lot determination program according to the first and second embodiments according to the read lot determination program. The same processing is executed in place of the lot determining means, the lot determining and counting means, and the lot determining execution determining means. Other configurations are the same as those of the first embodiment and the second embodiment, and the description thereof is omitted.

With such a configuration, the same effects as those of the first and second embodiments can be obtained.

[0067]

Since the present invention is configured as described above, the following effects can be obtained.

The actual data obtained after the operation is completed is recorded for each separation lot, and after the operation for all the separation lots is completed, the actual data obtained for each separation lot is totaled. By performing the lot determination of the lot, even if the product is operated for each separation lot, the lot determination of the product lot can be performed at the same time as the work completion report for the separation lot whose work has been completed last. Therefore, if the result of the lot determination is bad, it is possible to respond quickly.

Further, the worker does not need to check the progress of each separation lot and judge whether or not the lot judgment of the product lot is possible, and there is no need to total the actual data of each separation lot. Therefore, the number of man-hours for the worker can be reduced.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first embodiment of a lot determination system according to the present invention.

FIG. 2 is a flowchart showing a processing procedure of the lot determination system shown in FIG.

FIG. 3 is a block diagram showing a configuration of a second embodiment of the lot determination system of the present invention.

FIG. 4 is a flowchart showing a processing procedure of the lot determination system shown in FIG. 3;

FIG. 5 is a block diagram showing a configuration of a third embodiment of the lot determination system of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 production control system 2 data processing device 3 input / output terminal device 4 storage device 5 first equipment 6 second equipment 7 third equipment 8 recording medium 21 lot progress management means 22 separation lot management means 23 lot determination means 24 lot Judgment totaling means 25 Lot judgment execution deciding means 41 Result data storage unit 51 First equipment unit 52 First terminal unit 61 Second equipment unit 62 Second terminal unit 71 Third equipment unit 72 Third Terminal unit

Claims (6)

[Claims] 1. A lot judging method for judging a plurality of separated lots formed by dividing one product lot, which is a pass / fail judgment in quality control determined from a yield and an occurrence defect rate in an arbitrary process. In each of the separated lots, the progress of the process in the process is monitored, and the actual data including the number of non-defective products and the number of defective products obtained after the operation of the process for the separated lot is recorded. Simultaneously with the work completion report of the process for the separated lot to be completed, all of the performance data obtained corresponding to the separated lot are totaled, and the lot determination of the product lot is performed based on the totaled result. Lot determination method. 2. The lot judging method according to claim 1, wherein said lot judging of said product lot is carried out after completion of a plurality of steps of work on said separated lot. 3. A lot judging system for judging a plurality of separated lots formed by dividing one product lot, which is a pass / fail judgment in quality control determined from a yield and an occurrence defect rate in an arbitrary process. And a lot progress management means for monitoring the progress in the process for each of the separated lots, and record actual data including the number of non-defective products and the number of defective products obtained after completion of the work of the process for the separated lots. A performance data storage unit, and a lot determination / aggregation unit that totals all of the performance data obtained for each of the separated lots at the same time as the work completion report of the process for the separated lot whose work is finished lastly; Lot determination means for performing the lot determination of the product lot based on the tabulated result. Temu. 4. The lot judging system according to claim 3, further comprising: lot judging execution deciding means for causing said lot judging means to make said lot judgment of said product lot after completion of a plurality of processes for said separated lot. 5. A computer executes lot judgment, which is a pass / fail judgment in quality control determined from a yield and an occurrence defect rate in an arbitrary process, for a plurality of separated lots obtained by dividing one product lot. A recording medium on which is recorded a program for monitoring the progress in the process for each of the separated lots, and actual data including the number of non-defective products and the number of defective products obtained after the operation of the process for the separated lot is completed. Respectively, and at the same time as the work completion report of the process for the separation lot for which the work is finished, at the same time, all of the performance data obtained corresponding to the separation lot is totaled, and based on the totaled result, A recording medium on which a program for executing the lot determination of the product lot is recorded. 6. The recording medium according to claim 5, wherein a program for executing said lot determination of said product lot is recorded after completion of a plurality of processes for said separated lot.