JPH0497460A - Managing information storage package and its managing information retrieving method - Google Patents

Abstract

PURPOSE:To recognize in which electronic circuit package an IC of defective lot, etc., is packaged and to retrieve the IC, etc.. as continuing the operation of a system by providing a storing means which sends out stored managing information to the outside accordins to a readout command from the outside when the system is operated. CONSTITUTION:A storage unit 3 is comprised of (n) electronic circuit packages 4-1 to 4-n, and the ICs 5a-5m and read-only semiconductor memory device(ROW) 6 storing the manufacturing and quality managing information of the ICs 5a-5m obtained in inspection when manufacturing is completed are packaged on the electronic circuit packages 4-1 to 4-n, respectively. Consequently, it is possible to read out the content of the read-only semiconductor memory device 6 from a console 1 via a processing unit 2 as continuing the operation of the system when it is retrieved in which electronic circuit package the IC of defective lot is packaged. In such a way, it is possible to recognize whether or not the IC of defective lot is packaged in each of the electronic circuit packages 4-1 to 4-n, respectively.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a management information storage package and a management information retrieval method thereof, and in particular to an electronic circuit package constituting an information processing system, and its manufacturing management and quality control. and information retrieval methods.

[Conventional technology]

Conventionally, electronic components such as substrates and ICs that make up electronic circuit packages have been given manufacturer names, lot codes, etc., and the electronic circuit package manufacturing process is based on this information.
Quality control was in place.

For example, if there is a lot defect in an IC, etc., we will search for all the packages containing ICs with the corresponding lot code.
I was exchanging C. In this case, the package number printed on each electronic circuit package and the mounted
The lot code printed on C was visually checked.

[Problem to be solved by the invention]

In the conventional electronic circuit package described above, during mass production, it is difficult to associate the device serial number, package number, IC lot code, etc.
For equipment that had already been delivered, we had to remove the packaging and rely on visual inspection. Also, visual checks are of course impossible when the system is in operation.
The drawback was that turning off the power for checking caused trouble for the customer.

[Means to solve the problem]

The management information storage package of the present invention is an electronic circuit package that stores management information for manufacturing control and quality control of its own package in advance, and during operation, externally transmits the stored management information according to an external read instruction. It has storage means for sending out.

Further, in the management information storage package of the present invention, in the above configuration, the storage means is a read-only semiconductor storage device, and the manufacturer name of the circuit component mounted in the own package is 4.
It is also possible to have a configuration in which management information such as opening and closing codes is stored when manufacturing of the own package is completed.

In the management information retrieval method of the present invention, an information processing system is configured using the management information storage packages having the above configuration, and the storage means of each of the management information storage packages includes:
Management information for manufacturing control and quality control of the own package is stored in advance, and when the system is in operation, a reading instruction is given to each of the management information storage packages to read out the stored management information. do.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a bronc diagram for explaining one embodiment of the present invention. The information processing system of this embodiment has a console 1
The computer has a processing unit 2 connected thereto to perform overall control, and a storage unit 3 connected to the processing unit 2. Note that other types of units can also be connected to the processing unit 2.

The storage unit 3 includes n electronic circuit packages 4-1 to 4-1.
4 to n, and electronic circuit packages 4-1 to 4-n.
4-n, each block C5a to 5m and this I
A read-only semiconductor memory device (R
OM>6 is implemented.

Now, if a defect is found in any of IC5a to 5m and it turns out to be a lot defective (especially common in memory ICs), electronic circuit packages 4-1 to 4 on which the defective IC is mounted
- It is necessary to replace all n. At this time, when searching for which electronic circuit package has a defective lot of IC mounted, the contents of each read-only semiconductor storage device 6 (IC lot code) are sent from the console 1 via the processing unit 2 while the system is running. ), it is possible to know whether an IC of a defective lot is mounted in each of the electronic circuit packages 4-1 to 4-n.

Note that the read-only semiconductor memory device of the present invention can be installed in other units including the processing unit 2.

〔Effect of the invention〕

As explained above, the present invention reads out the contents of a read-only semiconductor memory device mounted on an electronic circuit package, thereby determining which electronic circuit package has an IC, etc. of a specific lot code (defective lot) mounted thereon. This has the effect of being able to know what is going on, and allowing searches for places like C and C to be carried out while the system is running.

[Brief explanation of drawings]

FIG. 1 is a block diagram for explaining one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Console, 2... Processing unit, 3... Storage unit, 1-4 n... Electronic circuit package, 5a-5m... IC16... Read-only semiconductor memory device (ROM>

Claims (1)

[Claims] 1. In an electronic circuit package, management information for manufacturing control and quality control of the package is stored in advance, and during operation, the stored management information is sent to the outside according to a read instruction from the outside. A management information storage package characterized in that it has a storage means for storing information. 2. The storage means is a read-only semiconductor memory device, and stores management information such as the manufacturer name and lot code of the circuit components mounted in the own package when the manufacture of the own package is completed. The management information storage package described in 1. 3. An information processing system is configured using the management information storage package according to claim 1 or 2, and management information for manufacturing control and quality control of the own package is stored in the storage means of each management information storage package. A management information retrieval method characterized in that the management information is stored in advance and, when the system is operating, a reading instruction is given to each of the management information storage packages to read out the stored management information.