JP2005183939A - Producing method and system of circuit board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a producing method and system of a circuit board capable of easily tracing the progressive conditions of divided productions of circuit boards and the histories of productions at the time of the occurrences of defects while increasing the production efficiency of the circuit boards using a multiple-boards forming board. <P>SOLUTION: In the producing method of the circuit board, the boards manufactured by a board maker 1 are distributed to a subsequent mounting maker 2, and electronic parts are mounted on the boards to produce the circuit boards at the mounting maker 2. Boards 5 that are divided into board pieces 7 through board sheets 6 are used at one or a plurality of dividing stages, and the discriminative information comprising the information on the entire boards and the information showing the correlations by division at each dividing stage is recorded in information recording sections 8, 9, 10 individually provided corresponding to each board before and after divided at each dividing stage, and the boards are distributed from the board maker 1 to the mounting maker 2, thereby enabling a user to trace the histories thereof by referring to the discriminative information. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a circuit board production method and system, and in particular, a board maker produces a multi-piece board that is divided into a plurality of parts in one or a plurality of division stages, and divides them appropriately and distributes them to a mounting maker for electronic components. The present invention relates to a circuit board production method and system for mounting a circuit board and other components to produce a circuit board, and a multi-chip board and a circuit board.

  Conventionally, in the production of circuit boards for various electronic devices, board design data based on circuit board design data is given to board manufacturers. Board manufacturers produce boards based on board design data. At that time, for production management and distribution management, the identification information is written in lot units or individual board units by the board manufacturer. Next, the board is supplied to the mounting manufacturer, and component mounting data based on the design data of the circuit board is given to the mounting manufacturer. In order to mount the necessary parts on the board and manage production, the mounting manufacturer writes information such as board identification information in an appropriate empty area on the board. It is also possible to perform mounting with high productivity by writing information necessary for mounting in the field and putting it in the mounting line.

  Further, in a production system provided with a plurality of work stations, an ID tag for individually identifying a work is provided for each work, and the work history for each work is managed by work history management means using a computer. In addition, in order to reduce the amount of work of the work history management means, there is known a network comprising work history storage means for storing work history for each work and transmission means (for example, Patent Document 1). reference.).

Various files such as a set / board serial number correspondence file describing the set serial number and the board serial number, a board manufacturing change report file, a defect history file describing the defect history and board defect history for each set, etc. There is known a method in which data processing means is connected online so that a manufacturing change history and a defect occurrence history can be searched for a set unit and a substrate unit of a predetermined model (for example, see Patent Document 2).
JP 10-333740 A Japanese Patent Application Laid-Open No. 8-22287

  By the way, in recent years, with the trend toward smaller and higher-density mounting of electronic devices, each circuit board has a tendency to be reduced in size. Therefore, board manufacturers produce large-scale multi-chip boards with multiple boards arranged, Is divided and distributed to the mounting manufacturer, and the mounting manufacturer also mounts electronic components on a plurality of boards in a similar manner, thereby improving the production efficiency. On the other hand, the production method itself is very complicated, such as high-mix low-volume production, shortening of product life cycle, outsourced production and production at overseas factories. Therefore, the conventional circuit board production method has a problem that it is extremely difficult to track and search the current production progress of an arbitrary circuit board in real time. Also, when a defective product occurs in a product, it is extremely difficult to find out the cause and take measures.

  Also, because each manufacturer writes identification information and information necessary for manufacturing in units of lots and substrates, a writing device such as a laser marker for writing information is provided for each manufacturer. When trying to write a lot of information in order to increase the efficiency, there is a problem that it takes a writing man-hour and equipment cost.

  In order to solve such problems, it is necessary to be able to track the production history of products at any time, including during production, but the information written on individual products by each producer, such as each manufacturer, There is a problem that it cannot be realized because it can only be analyzed in production units.

  In addition, the means disclosed in Patent Document 1 and Patent Document 2 can be applied only to products produced by one producer such as each manufacturer, and cannot solve such problems.

  In view of the above-described conventional problems, the present invention facilitates the tracking of the production progress of a divided circuit board and the production history at the time of occurrence of a defect while improving the production efficiency of the circuit board using a multi-chip board. An object of the present invention is to provide a circuit board production method and system that can be performed and that can reduce the man-hours for recording information on the board and reduce the production cost.

  The circuit board production method of the present invention is a circuit board production method for producing a circuit board by distributing a board produced by a board manufacturer to a subsequent mounting manufacturer and using it for component mounting at the mounting manufacturer. Alternatively, each information recording unit provided with a plurality of substrates each divided into a plurality of division stages and corresponding to each of the substrates before and after the division at each division stage is provided on the entire substrate. Identification information consisting of such information and information indicating the relative relationship by division at each division stage is recorded and the board manufacturer distributes the board to the mounting manufacturer. Production methods such as high-mix low-volume production, shortening of product life cycle, outsourced production and production in overseas factories, etc. Even if the body becomes very complex, the current production progress status of any circuit board can be easily tracked and searched in real time by referring to the identification information, and when a defective product occurs on the circuit board The cause can be identified and measures can be taken easily. Note that the information related to the entire board includes both the identification information of the board manufacturer and the identification information of the mounting manufacturer if the identification information for the entire board is not common between the board manufacturer and the mounting manufacturer, and is different from each other. It is.

  In addition, the information recording unit may record information using a barcode, but if information is recorded using a two-dimensional code, a large amount of information can be recorded easily and at low cost using a laser marker or the like. it can.

  In addition, when the board manufacturer records information related to the production process at the board manufacturer and information about the production process at the mounting manufacturer in addition to the identification information of each board itself in the information recording unit, Since the information necessary for the mounting process is recorded, it is possible to omit or reduce the man-hours for recording information on the board at the mounting manufacturer, thereby realizing efficient production while reducing the production cost.

  Also, from the viewpoint of the mounting manufacturer, a circuit board production method is to produce a circuit board by mounting components at a mounting manufacturer against a board produced by a board manufacturer and distributed to subsequent mounting manufacturers. For each information recording unit provided in correspondence with each substrate before and after division in each division stage using a multi-piece substrate divided into a plurality of divisions in one or a plurality of division steps. For the board on which the identification information consisting of the information related to the whole board and the information indicating the relative relationship by the division at each division stage is recorded, the identification information used by the mounting manufacturer is recorded in each information recording unit by the mounting manufacturer. Yes, even if the production method itself becomes very complicated, such as high-mix low-volume production, short product life cycle, outsourced production, and production at overseas factories as described above, the current production progress of any circuit board Etc. can be easily tracked and search in real-time by referring to the identification information status, and may also easily take measures to identify the cause when the defective circuit board has occurred.

  In addition, the information related to the production process read out from the information recording unit by the mounting manufacturer to the board in which information related to the production process at the mounting manufacturer is recorded in addition to the identification information of each board itself in the information recording unit by the board manufacturer. When mounting is performed based on this, it is possible to omit or reduce the man-hours for recording information on the board at the mounting manufacturer, thereby realizing efficient production while reducing the production cost.

  In addition, the board manufacturer and the mounting maker combine the production process information on each board and the identification information read from the information recording unit, and transmit them to the data processing center connected via the communication network. To build various databases, board manufacturers and mounting manufacturers take necessary data from the database via the communication network and perform the necessary processing. Even if the production method becomes complicated, the necessary history of any circuit board Information can be easily and accurately obtained from a database via a communication network, and various situations such as when a defective product occurs and the cause is investigated and countermeasures are taken, and the production progress of any circuit board It is possible to appropriately cope with various requests such as grasping the situation, grasping the usage situation, inventory situation, and the like.

  The circuit board production system according to the present invention is a circuit board manufacturer that divides the information recording unit into a plurality of divisions at one or a plurality of division stages and corresponds to each of the boards before and after the division at each division stage. This is a circuit board production system that produces a large number of printed boards, distributes the boards produced by the board manufacturer to the subsequent mounting manufacturers, and mounts electronic components on the boards at the mounting manufacturer to produce circuit boards. In addition, the board manufacturer is provided with a recording means for recording identification information consisting of information on the entire board and information indicating the relative relationship by the division at each division stage in each information recording section of the board. Readout means for reading information from the recording unit is provided, the above production method can be implemented, and the current production progress status of any circuit board can be referred to in real time by referring to the identification information. Tracking and search it is possible to, and may be readily take measures to identify the cause when the defective occurs in products.

  In addition, if the recording means in the board manufacturer is configured to record information related to the production process in the board manufacturer and information related to the production process in the mounting manufacturer in addition to the identification information of each board itself, Efficient production can be realized while reducing the production cost by omitting or reducing the man-hours for recording information on the substrate at the manufacturer.

  In addition, it has a data processing center that is connected to a board manufacturer and a mounting manufacturer via a communication network, and processes various data transmitted from the board manufacturer and the mounting manufacturer to construct various databases. The means for reading the identification information recorded in the information recording unit and the production process information and identification information relating to each board at the board manufacturer and the mounting manufacturer are combined and transmitted to the data processing center, and necessary data is sent from the data processing center. By providing data processing / transmission / reception means to receive, even if the production method is complicated, the necessary history information of any circuit board can be easily and accurately obtained from the database via the communication network, and defective products are generated As a result, various causes such as investigation of the cause and taking countermeasures, ascertaining the production progress of any circuit board, And circumstances, it is possible to properly deal with a variety of needs, such as understanding of and availability.

  Further, the multi-piece substrate of the present invention is a multi-piece substrate having one or a plurality of division stages and divided into a plurality of division stages, and each board before and after division in each division stage. An information recording unit is provided corresponding to each of the information recording units, and each information recording unit records identification information composed of information relating to the entire substrate and information indicating a relative relationship by division at each division stage. By using the board, it is possible to easily track and search the current production progress status of any board in real time by referring to the identification information, and when a defective product occurs on the circuit board after production The cause can be identified and measures can be taken easily.

  In addition to the individual information on the board itself, the information recording unit records information necessary for the production process at the board manufacturer and information necessary for the production process at the mounting manufacturer. Therefore, efficient production can be achieved while reducing the production cost by omitting or reducing the man-hour for recording information.

  The circuit board of the present invention is a circuit board in which components are mounted on a board obtained by dividing a multi-piece board into a plurality of division stages in one or a plurality of division stages, and the circuit board has an information recording unit. In the information recording section, identification information consisting of information common to all the substrates in the multi-chip substrate and information indicating the relationship between the divided substrates in each division stage is recorded. Even when it occurs, the production history of the circuit board can be tracked and searched based on the identification information, and the cause can be identified and measures can be taken easily.

  In addition to the identification information of the board itself, the information recording unit records information necessary for the production process at the board manufacturer and information necessary for the production process at the mounting manufacturer. Therefore, efficient production can be achieved while reducing the production cost by omitting or reducing the man-hour for recording information.

  Further, the circuit board production method according to the present invention is a data processing center in which each of the multi-chip boards divided into a plurality of parts at one or a plurality of division stages transmitted from the board manufacturer and the mounting manufacturer via the communication network. Production process information on each substrate before and after the division in the division stage, information on the entire substrate read from the information recording unit provided on each substrate, and information indicating a relative relationship by the division in each division stage Various databases are constructed by processing the combination of identification information and various databases. Information on the production history of both the board manufacturer and the mounting manufacturer, and the board manufacturer and the mounting manufacturer import it via the communication network. It is desirable to include information necessary for performing the necessary processing, and such a configuration complicates the production method. Necessary history information of any circuit board can be easily and accurately obtained from the database via the communication network, and various situations such as occurrence of defective products and investigation of the cause and taking countermeasures It is possible to appropriately cope with various requests such as grasping the production progress status of any circuit board, grasping the usage status, inventory status, and the like.

  According to the circuit board production method and system of the present invention, a board manufacturer manufactures a multi-piece substrate, divides it and distributes it to a mounting manufacturer, improving the production efficiency, and reducing the quantity of various products. Even if the production method itself, such as production, outsourced production or production at an overseas company, becomes very complicated, the current production progress status of any circuit board can be easily tracked and searched in real time by referring to the identification information. In addition, when a defective product occurs on the circuit board, it is possible to identify the cause and take measures easily.

  Hereinafter, an embodiment of a circuit board production method and system according to the present invention will be described with reference to FIGS.

  In the present embodiment, as shown in FIG. 1, a large-sized multi-piece substrate (hereinafter referred to as a “substrate board”) 5 in which a plurality of substrates are arranged in a substrate manufacturing line 3 of a substrate manufacturer 1 is manufactured. A circuit board (hereinafter referred to as a “substrate piece”) is divided into a plurality of substrates (hereinafter referred to as “substrate sheets”) 6 and distributed and supplied to the mounting manufacturer 2. Then, a required electronic component is mounted on each board piece 7 of the board sheet 6 and further divided into each board piece 7 to produce a circuit board.

  As shown in FIG. 2, the substrate board 5 is configured by arranging a plurality of substrate sheets 6 in the outer frame 5a and connecting them to each other, and records information relating to the entire substrate board 5 at an appropriate position of the outer frame 5a. An information recording unit 8 is provided. The substrate sheet 6 is configured by arranging a plurality of substrate pieces 7 in the outer frame 6a and connecting them together. Information on the entire substrate board 5 and any substrate in the substrate board 5 are arranged at appropriate positions on the outer frame 6a. An information recording unit 9 for recording information indicating whether the sheet 6 is present or not is provided. The board piece 7 is provided with an information recording unit 10 that records information about the whole board board 5 and information indicating which board piece 7 in which board sheet 6 in the board board 5 is in place.

  The information recorded in these information recording units 8 to 10 includes, for example, as shown in FIG. 3, a mounting manufacturer control part number and a board manufacturer control part number related to the circuit board to be produced, and a lot in a production lot of the circuit board of that part number. The number, the total number of board boards 5 included in the lot, the board board code indicating the number of board boards 5 in the lot (parent code), and the position of the board sheet 6 on the board board 5 Substrate sheet code (child code), substrate piece code (grandchild code) indicating where the substrate piece 7 is located on the substrate sheet 6, and production start time, production end time, operator name, use in the substrate production line 3 Information in the production process such as equipment name, mounting component name at each component mounting point on the mounting line 4, mounting position coordinates on the board, and component mounting This includes information necessary for production, such as a mounting program for operating a component mounting machine, which consists of information including operation information such as the mounting head moving speed and the suction nozzle used, etc. Is set.

  The operation of the board production line 3 and the mounting line 4 is controlled based on circuit board design data 11. Therefore, of the circuit board design data 11, design data related to the manufacture of the board board 5 and the division into the board sheet 6 is supplied to the board manufacturer 1. The design data of the board board 5 is input to the control data creation unit 12, and the data related to the board production line 3 is referred to. The board production line 3 uses the operation program of the board molding machine and the operation of the wiring pattern drawing machine on the board. Control data for manufacturing the board board 5 such as a program is created and stored in the control unit 13, the operation of the board production line 3 is controlled based on the control data by the control unit 13, and the board boards 5 are sequentially produced. After being divided into each substrate sheet 6 and then inspected by the inspection device 14, the substrate sheet 6 is supplied and distributed to the mounting manufacturer 2.

  Of the circuit board design data 11, mounting design data relating to electronic components mounted on each board piece 7 of the board sheet 6 is supplied to the mounting manufacturer 2. The mounting design data is input to the control data creation unit 15, and the data related to the mounting line 4 is referred to. The mounting line 4 is mounted on each board piece 7 of the board sheet 6. Control data for mounting electronic components such as mounting programs for operating a component mounting machine consisting of information including operation information such as coordinates, mounting head moving speed for mounting components, and suction nozzles used is created and controlled. Data is supplied to the board manufacturer 1.

  In the example of FIG. 1, an example in which the control data created by the control data creation unit 15 of the mounting manufacturer 2 is supplied to the board manufacturer 1 is shown. The design data may also be supplied to the board manufacturer 1 and information related to the mounting line 4 may be supplied from the mounting manufacturer 2 to the board manufacturer 1 so that the board manufacturer 1 generates control data for the mounting line 4.

  The board manufacturer 1 also includes information for individually identifying the board board 5, the board sheet 6, and the board piece 7 that are sequentially produced, as well as the board molding machine and wiring pattern drawing machine used when manufacturing the board. Information on the board board 5, the board sheet 6, and the board piece 7, such as the name, operator name, manufacturing start time, manufacturing end time, product number of the material constituting the board, lot number, etc. In order to record in the recording units 8, 9, and 10, data is input from the control unit 13 to the recording information creation unit 16, and at the same time, among the control data for mounting the electronic components supplied from the mounting manufacturer 2 Control data related to the board 5 is also input to the recording information creation unit 16, and the information related to the board 5 is converted into recording information by the recording information creation unit 16. Is output to the recording unit 17 such as a car. Then, the recording means 17 records the record information in each of the information recording units 8, 9, 10 provided on the substrate board 5. By writing a two-dimensional code in these information recording units 8, 9, and 10, a large amount of information as shown in FIG. 3 can be easily recorded at a low cost.

  After each recording information is written in the information recording sections 8, 9, and 10 of the board board 5 by the recording means 17, the board board 5 is divided into board sheets 6, and then various performance inspections of each board sheet 6 are inspected. This is performed by the device 14. At this time, in order to associate the substrate sheet 6 with the inspection result, the information recorded in the information recording units 9 and 10 of the substrate sheet 6 and the substrate piece 7 is read by the reading means 18 and is read by the data reading unit 19. Then, the individual information of the substrate sheet 6 and the substrate piece 7 is read, and the individual information and the inspection data of the substrate sheet 6 and the substrate piece 7 are input to the data processing / transmission / reception means 20 comprising a personal computer. Thereafter, the substrate sheet 6 is supplied and distributed to the mounting manufacturer 2 as described above.

  In the mounting manufacturer 2, the information written in the information recording units 9 and 10 is read by the reading means 21 such as a code reader before the board sheet 6 is put into the mounting line 4, and the mounting line 4 is read by the data reading unit 22. The control data is read and output to the control unit 23. Thus, the operation of the mounting line 4 is controlled based on the control data read by the control unit 23, and the required electronic components are mounted on each board piece 7 of the board sheet 6 put into the mounting line 4. Will be produced sequentially.

  In addition to the above method, the board manufacturer 1 can also use a method of recording the identification name of the control data (for example, the mounting program name of the component mounting machine) in each information recording unit 8, 9, 10. The entity of the control data (component mounting machine mounting program) may be stored in each component mounting machine or the control unit 23 of the mounting manufacturer 2. At that time, the mounting manufacturer 2 reads the control data from the information recording units 8, 9, and 10 by the reading unit 21, recognizes the name of the control data, and stores the control data stored in each component mounting machine or the control unit 23 in advance. The relevant data is selected from the data.

  The board sheet 6 mounted with electronic components and carried out of the mounting line 4 is divided into board pieces 7 corresponding to the circuit boards, and various performance inspections of the board pieces 7 are then performed by the inspection device 24. At that time, in order to associate the substrate piece 7 with the inspection result, the information recorded in the information recording unit 10 of the substrate piece 7 is read by the reading means 25 and the individual information of the substrate piece 7 is read by the data reading unit 26. The individual information and inspection data of the substrate piece 7 are input to the data processing / transmission / reception means 27 comprising a personal computer. The data processing / transmission / reception means 27 also receives data relating to the substrate sheet 6 carried into the mounting line 4 detected by the data reading unit 22.

  The data processing / transmission / reception means 20 and 27 of the board manufacturer 1 and the mounting manufacturer 2 are connected to the Internet communication network 28 and connected to the data processing center 29 via the Internet communication network 28. The data processing center 29 receives the products in the production bodies such as the board manufacturer 1 and the mounting manufacturer 2 and various databases 30 related to the production, and data reception for storing the data transmitted from each production body and storing the data in each database. A processing means and search transmitting means for searching for necessary information from the database in response to a request from each producer and transmitting the information to each producer are provided.

  Thus, identification information of the board board 5, board sheet 6, and board piece 7 and inspection data by the inspection devices 14 and 24 are input from the data processing / transmission means 20 and 27 to the data processing center 29. Various types of databases 30 are constructed by processing these input information, and necessary information is obtained by arbitrarily accessing these databases 30 from the data processing / transmission / reception means 20, 27 of each producer such as the board manufacturer 1 and the mounting manufacturer 2. Is taken out.

  As the database 30, an inventory status database for each production body (for example, information such as the material constituting the board in the board manufacturer 1, the number of wiring materials in stock, the delivery schedule, etc.) Information such as the number of boards in stock, the quantity of parts to be mounted, and the delivery schedule thereof), history management data of each board board 5, board sheet 6, and board piece 7 (for example, when a board manufacturer 1 manufactures a board Used when mounting components in the mounting manufacturer 2, such as the name of the used board molding machine or wiring pattern drawing machine, operator name, manufacturing start time, manufacturing end time, product number of the material constituting the board, lot number, etc. The name of the component mounting line or component mounting machine, operator name, manufacturing start time, manufacturing end time, mounted component name, manufacturer name, lot number, actual Information on the suction nozzle name, feeder identification number, etc. used), the progress database of each board production, the inspection result database of each board piece 7, the other order management database, the energy usage database, the work performance database of each equipment, etc. Has been built.

  Note that the data processing center 29 is not limited to the method of storing history management data in the database 30, but the manufacturing history at the time of manufacturing at the board manufacturer 1 and the manufacturing history at the time of manufacturing at the mounting manufacturer 2 are respectively shown in the corresponding board. It is also possible to use a method of recording in the information recording sections 8, 9, and 10 of 5, 6, and 7. By adopting such a method, only by reading the information recording sections 8, 9, and 10 of each of the substrates 5, 6, and 7, a plurality of productions such as the substrate manufacturer 1 and the mounting manufacturer 2 involved in the manufacture of the mounting substrate. The manufacturing history in the body can be referred to, and the cause specifying trace such as a defect can be easily traced in the same manner as referring to the database 30 of the data processing center 29.

  According to this embodiment, the board manufacturer 1 manufactures a board in the form of a large-sized board board 5 having a large number of board pieces 7 each serving as a circuit board, and divides the board and distributes it to the mounting manufacturer 2. Even if the production method itself becomes very complicated, such as high-mix low-volume production, shortening of the product life cycle, outsourced production and production at overseas factories, The current production progress status etc. can be easily tracked and searched in real time by referring to the identification information, and when a defective product is generated on the circuit board, the cause is based on the identification information and information on the production process. It is very easy to take countermeasures by looking at the spot.

  Further, since the data of the board manufacturer 1 and the mounting manufacturer 2 is concentrated in the data processing center 29 connected by the Internet communication network 28 and the database 30 that can be arbitrarily referred to is constructed, the board manufacturer 1 and the mounting manufacturer 2 Data management costs can be reduced, manufacturing data can be managed in crisis, circuit board quality traces and quality data can be referenced in real time, and even if the production system is complicated, defective products are generated. The cause of the time can be investigated pinpointed, and measures can be taken quickly and accurately, and the quality of the circuit board can be easily improved. In addition, it is possible to appropriately cope with various requests such as grasping the production progress status of any board board 5, board sheet 6, and board piece 7, grasping the usage status, inventory status, and the like.

  In the above description of the embodiment, an example is shown in which production is performed by distributing between two manufacturers, the board manufacturer 1 and the mounting manufacturer 2, but it goes without saying that it can be applied to an arbitrary number of producers.

  The circuit board production method of the present invention divides a multi-chip board and distributes it to mounting manufacturers to improve production efficiency, while producing a variety of products in small quantities, outsourced production, production at overseas companies, etc. Even if the production method itself becomes very complicated, it is possible to easily track and search in real time by referring to the identification information on the current production progress of any circuit board based on the identification information recorded on each board. In addition, when a defective product occurs, it is possible to find out the cause and take measures very easily, which is useful for the production of various circuit boards.

1 is a schematic configuration diagram of a circuit board production system according to an embodiment of the present invention. It is a typical explanatory view of a substrate board used in the production system of the embodiment. It is explanatory drawing of the information recorded on the information recording part of the board | substrate in the embodiment.

Explanation of symbols

1 Board manufacturer 2 Mounting manufacturer 3 Board manufacturing line 4 Mounting line 5 Board board (Multi-chip board)
6 Substrate sheet 7 Substrate piece 8, 9, 10 Information recording unit 20, 27 Data processing / transmission / reception means 28 Internet communication network 29 Data processing center 30 Database

Claims (18)

  A circuit board production method for producing a circuit board by distributing a board produced by a board manufacturer to a subsequent mounting manufacturer and using it for component mounting at the mounting manufacturer, each divided into a plurality of division stages in one or more division stages. In each information recording unit, which is provided corresponding to each substrate before and after the division in each division stage, and information on the whole substrate and the division at each division stage. A method for producing a circuit board, wherein identification information comprising information indicating a relative relationship is recorded and the board manufacturer distributes the board to the mounting manufacturer.   2. The circuit board production method according to claim 1, wherein information is recorded in a two-dimensional code in the information recording unit.   3. The board maker records information on a production process at the board maker and information on a production process at the mounting maker in addition to the identification information of each board itself in the information recording unit. Circuit board production method.   A circuit board production method for producing a circuit board by mounting components at a mounting manufacturer on a board produced by a board manufacturer and distributed to subsequent mounting manufacturers. Information on the entire board and information at each division stage are provided in each information recording unit provided by the board manufacturer corresponding to each division board before and after division at each division stage using a multi-piece substrate to be divided. A method for producing a circuit board, wherein identification information used by a mounting maker is recorded in each information recording unit by a mounting maker on a board on which the identification information including information indicating a relative relationship by division is recorded.   Based on the information related to the production process read from the information recording unit by the mounting manufacturer for the board in which information related to the production process at the mounting manufacturer is recorded in the information recording unit in the information recording unit by the board manufacturer 5. The circuit board production method according to claim 4, wherein mounting is performed.   The board manufacturer and the mounting maker combine the production process information about each board and the identification information read from the information recording unit and send it to the data processing center connected via the communication network, and the data processing center performs the data processing. 6. The circuit board according to claim 1, wherein various databases are constructed, and the board manufacturer and the mounting manufacturer take in necessary data from the database via a communication network and perform necessary processing. Production method.   7. The circuit board production method according to claim 6, wherein the database includes information relating to production histories of both the board manufacturer and the mounting manufacturer.   A board maker produces a multi-piece board that is divided into a plurality of division stages in one or a plurality of division stages and is provided with an information recording unit corresponding to each of the boards before and after the division of each division stage, A circuit board production system that distributes a board produced by a board manufacturer to a subsequent mounting manufacturer and mounts electronic components on the board at the mounting manufacturer to produce a circuit board. And recording means for recording identification information consisting of information indicating the relative relationship by division at each division stage in each information recording section of the board, and a mounting means for reading information from the information recording section in the mounting manufacturer A circuit board production system characterized by   The recording means in the board manufacturer is configured to record the information related to the production process in the board manufacturer and the information related to the production process in the mounting manufacturer in addition to the identification information of each board itself in the information recording unit. The circuit board production system according to claim 8.   A data processing center that connects to the board manufacturer and the mounting manufacturer via a communication network, processes data transmitted from the board manufacturer and the mounting manufacturer, and builds various databases, and records information on each board to the board manufacturer and the mounting manufacturer. The means for reading the identification information recorded in the section and the production process information and identification information relating to each board at the board manufacturer and mounting manufacturer are combined and transmitted to the data processing center, and the necessary data is received from the data processing center. 10. The circuit board production system according to claim 8, further comprising data processing / transmission / reception means.   A multi-piece substrate that has one or a plurality of division stages and is divided into a plurality of divisions at each division stage, provided with an information recording unit corresponding to each substrate before and after the division of each division stage; A multi-piece substrate characterized in that identification information comprising information relating to the entire substrate and information indicating a relative relationship by division at each division stage is recorded in the information recording unit.   12. The multi-chip substrate according to claim 11, wherein production history of both the board manufacturer and the mounting manufacturer is recorded in the information recording unit.   12. The information recording unit records information necessary for a production process at a board manufacturer and information necessary for a production process at a mounting manufacturer in addition to individual information on the board itself. Multi-cavity board.   A circuit board in which components are mounted on a board obtained by dividing a multi-piece board into a plurality of division stages in one or a plurality of division stages, the circuit board having an information recording section, and the information recording section includes A circuit board having recorded thereon identification information composed of information common to all the boards in the individual substrate and information indicating a relationship between the divided boards at each division stage.   15. The information recording unit records information necessary for a production process at a board manufacturer and information necessary for a production process at a mounting manufacturer in addition to identification information of the board itself. Circuit board.   In a data processing center, each board before and after division in each division stage of a multi-piece board divided into a plurality of division stages in one or a plurality of division stages transmitted from a board manufacturer and a mounting manufacturer via a communication network Various combinations of production process information, identification information consisting of information related to the entire substrate read from the information recording unit provided on each substrate and information indicating the relative relationship by division at each division stage are processed and processed. A circuit board production method characterized by constructing a database.   17. The circuit board production method according to claim 16, wherein the database includes information relating to production histories of both the board manufacturer and the mounting manufacturer.   17. The method for producing a circuit board according to claim 16, wherein the database includes information necessary for the board manufacturer and the mounting manufacturer to take in via the communication network and perform necessary processing.

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