JPH0448681A - Electronic circuit board and its manufacturing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an electronic circuit board and a method for manufacturing the same.

[Conventional technology]

A production line that manufactures an electronic circuit board by mounting electronic components on a board, and then assembles this electronic circuit board into an electronic device and performs adjustment work to complete the product (electronic device) has several processes. It is divided into stages, and each process is automatically set up, parts are assembled, adjusted,
An inspection will be carried out. Process instruction information that instructs procedures such as setup, assembly, adjustment, and inspection is stored or set in advance in the production equipment, and work for each process is automatically performed according to instructions from the production equipment. It was being done.

Additionally, semi-finished products were fixed on pallets equipped with sending/receiving communication functions and then sent to the production line.

[Problem to be solved by the invention]

In the conventional technology described above, the production equipment has process instruction information that instructs procedures such as assembly, adjustment, and inspection, so whenever the product to be manufactured changes, it is necessary to change the process instruction information held by the production equipment. In particular, in the case of high-mix, low-volume production, not only does it require a large number of man-hours for changes, but there are also problems in that there are significant restrictions on standardization to support the manufacture and assembly of a wide variety of products.

In addition, there are cases where you want to know the quality information such as inspection data of the product during production after the product is completed, but since the pallet is separated from the finished product, it is difficult to obtain such quality information. (There was a problem.

An object of the present invention is to propose an electronic circuit board and a manufacturing method thereof that can solve the above problems.

[Means for Solving the Problems] In order to achieve the above object, the electronic circuit board of the present invention has the following features:
An electronic circuit board equipped with a battery-powered microprocessor (3), ROM or RAM (5) in which information instructing the manufacturing process is written, and R A that records related information generated during the manufacturing process. M (6) and (7), and the microprocessor (3) is a ROM or RA.
The function is to transmit the manufacturing process instruction information written in M (5) to the outside of the electronic circuit board (1), and to receive the related information and record it in the RAM (6) and (7). It is characterized by having

The method for manufacturing an electronic circuit board of the present invention includes a substrate (2
) with a microprocessor (3) and ROM or RAM (5).
) and RAM (6) (7) are mounted on the semi-finished electronic circuit board (21), a battery (4) is attached to the microprocessor (3) while the microprocessor (3) is kept in an operating state. ) Processes such as assembling other electronic components onto the board (2) are carried out based on the manufacturing process instruction information sent from the RAM (6), and related information generated during the process is stored in the RAM (6).
(7) It is characterized by writing and recording.

[Effect]

ROM or RAM in which manufacturing process instruction information is written
(5) and R to record related information generated during the manufacturing process.
A battery (21) is attached to a semi-finished electronic circuit board (21) on which A M (6) (7) and a microprocessor (3) are mounted.
4) is attached and the microprocessor is activated and sent to the production line. Each time the production line moves to each step, the microprocessor (3) loads the ROM or RAM (
Send the manufacturing process instruction information written in 5).

The production equipment side assembles, adjusts, and assembles parts according to these instructions.
Performs inspection and other work, and transmits related information such as inspection data generated during the manufacturing process to the electronic circuit board. The microprocessor receives this relevant information and stores it in ROM or R
Record in A M (5).

〔Example〕

In FIG. 1, 1 is an electronic circuit board, which includes a board 2 such as a printed circuit board, a microprocessor 3 mounted on this board 2, a battery 4 that drives this microprocessor 3, and manufacturing process instruction information such as assembly, adjustment, etc. A ROM 5 in which software that instructs procedures such as inspections is written, two RAMs 6 and 7 that record related information generated during the manufacturing process, several integrated circuits 8 that are other electronic components, and a resistor 9
and a capacitor 10, etc. Reference numeral 11 denotes a land of a wiring pattern (not shown) provided on the substrate 9, to which the positive and negative terminals of the battery 4 are connected. 12.1
3 and 14 are terminals provided on one side of the board 2, which are used for communication by which the microprocessor 3 transmits manufacturing process instruction information to the outside of the electronic circuit board 1 and receives related information generated during the manufacturing process. used as a terminal. 15 is an external electronic device that performs such communication. This first
In the illustrated embodiment, the first RAM 6 is used to record related information on the manufacturer's side, and the second RAM 7 is used to record related information required on the user's side. For example, if the electronic circuit board l is incorporated into an electronic water meter,
Considering that the water meter difference changes over time, information such as adjusting the water meter difference to a plus point within the standard is recorded in the first RAM 6, and the information is recorded in the first RAM 6, and the information is adjusted to the customer's (user) specifications. The two RAMs 6 and 7 are used selectively so that information that the user wants to know after the finished product, such as inspection data, is recorded in the second RAM 7.

Note that for the connection between the electronic circuit board 1 and the external electronic device 15, a non-contact connection method such as an optical connection may be used instead of the terminals 12 to 14 shown in FIG. Also, a RAM may be used instead of the ROM5.

FIG. 2 shows an example of the manufacturing process when carrying out the method of manufacturing an electronic circuit board of the present invention, in which 20 is manufacturing line equipment;
1 is a semi-finished product of the electronic circuit board, and symbols 20a and 20
b, Step 1 as shown in 20c. Step 2. It will be completed as you move on to step 3. At the stage of the semi-finished product 21, a microprocessor 3, a battery 4. A ROM or RAM 5 in which manufacturing process instruction information is written and two RAMs 6 and 7 that record related information generated during the manufacturing process are installed.

The microprocessor 3 is activated in this state. When the semi-finished product 21 of the electronic circuit board is moved to the step 1 indicated by the reference numeral 20a, the microprocessor 3 is reset from the outside and at the same time the software is activated to reset the ROM or RA.
Electronic components such as the capacitor 10 are supplied from the equipment 20 (1N) and mounted on the board 2 according to the manufacturing process instruction information written in M5.

At this time, capacitor 1 is placed on which land and which land on board 2.
The manufacturing process instruction information regarding whether to implement 0 is stored in ROM or R.
The information written in AM5 is transferred to microprocessor 3.
This instructs the equipment 20 to transmit via the terminals 12, 13, 14 of the board 2. In process 1, when electronic components are mounted on the electronic circuit board, the electronic circuit board is adjusted and inspected according to the manufacturing process instruction information from the electronic circuit board side, and the resulting quality information is sent from the equipment 20 to the electronic circuit board. The information is communicated to the microprocessor 3 via the terminals 12, 13 and 14 of the board, and recorded in the RAM 6 or 7. In addition, in FIG. 2, the three arrows A, B, and C shown in step 1 are
They respectively instruct the manufacturing process from the board to the equipment 20, supply parts from the equipment 20 to the board and perform adjustment/inspection work, and flow of information to be recorded in the RAM 6.7 from the equipment 20 to the board. The semi-finished product 21 shown is further sent to steps 2 and 3, indicated by reference numerals 20b and 20c, to be further completed. In these processes as well, the equipment 20 receives instructions from the semi-finished product shown by arrow A, performs the work shown by arrow B, and records related information generated during the process by arrow C.
Accordingly, it is recorded in RAM 6 or 7 of the board. Once the determined steps are completed, the product is completed. Quality control information and inspection result data based on user specifications can be extracted from the finished product at any time.

[Effects of the Invention] Since the electronic circuit board of the present invention is configured as described above, by investigating semi-finished products and finished products, it is possible to determine whether the ROM or RAM is
Information on process 9 quality, specifications, etc. recorded in the process can be obtained.

Further, since software such as manufacturing process instruction information is written in the ROM or RAM (5) of semi-finished products and finished products, work instructions for each process on the manufacturing line can be obtained from this software. Therefore, there is no need to prepare manufacturing process instruction information for each of many types of products on the equipment side.

[Brief explanation of the drawing]

FIG. 1 is a plan view of an electronic circuit board of the present invention, and FIG. 2 is a schematic diagram of a manufacturing line for implementing the method of manufacturing an electronic circuit board of the present invention. DESCRIPTION OF SYMBOLS 1... Electronic circuit board, 2... Board, 3... Microprocessor, 4... Battery, 5... ROM, 6.7.
...RAM, 21...Handmade Rolo

Claims (2)

[Claims] 1. An electronic circuit board equipped with a battery-powered microprocessor (3), which includes a ROM or RAM (5) in which information instructing the manufacturing process is written, and a RAM (6) that records related information generated during the manufacturing process. )(7),
The microprocessor (3) has a ROM or a RAM (5).
) has a function of transmitting the manufacturing process instruction information written in the electronic circuit board (1) to the outside of the electronic circuit board (1), and receiving the related information and recording it in the RAM (6) (7). Characteristic electronic circuit board. 2. A microprocessor is constructed by mounting a battery (4) on a semi-finished electronic circuit board (21) in which a microprocessor (3) and ROM or RAM (5) and RAM (6) and (7) are mounted on a board (2). (3) is kept in an operating state, processes such as assembling other electronic components to the board (2) are carried out based on the manufacturing process instruction information sent from the microprocessor (3), and any problems that occur during the process are performed. related information is stored in RAM (6
) A method for manufacturing an electronic circuit board, characterized by writing and recording on (7).