JPH0379877B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a method for controlling component mounting on a printed board by a plurality of inserters using a single computer.

(2) Technical background Although there are many types of printed wiring boards installed in electronic computers, the number of printed wiring boards used for each type is not large. Therefore, since the production of such printed wiring boards, that is, the work of mounting components on the printed wiring boards, takes the form of high-mix, low-volume production, it is difficult to establish a manufacturing process as a consistent assembly line, making the work complicated and Raising issues such as poor manufacturing efficiency.

Such problems can lead to a decrease in the reliability of printed wiring boards, and may also interfere with the operation of semiconductor devices such as computers, so it is necessary to develop a consistent method for controlling component mounting on printed wiring boards. It is becoming recognized.

(3) Conventional technology and problems In principle, component mounting on printed wiring boards using conventional technology is performed using one inserter. It is something that can be implemented. A plurality of these 48 types of parts are put into one stake according to type, and the stakes are further assembled into four magazines, for example, with 12 parts in one magazine, and are mounted on the inserter.

Component mounting on a printed wiring board is carried out in accordance with the read information after a paper tape reading device provided in the inserter reads a mounting command that specifies the component type and mounting position stored on the paper tape.

By the way, as mentioned above, when mounting components on one printed wiring board with one inserter, if the number of types of components to be mounted is 48 or more, or even if there are fewer than 48 types, the inserter may not be able to mount the components. There are many cases where the parts are parts other than the original parts. In such a case, first proceed with the work on only the mountable parts installed in the inserter, and
After that, the stakes are replaced, necessary parts are mounted on the inserter, and mounting work is continued to complete the printed wiring board.

On the other hand, even if multiple inserters are used to eliminate the need to replace stakes during mounting, the stakes must be replaced or the inserter to be used must be reselected for each different type of printed wiring board.

As described above, mounting components on a printed wiring board using the conventional technology involves many complicated operations, which may lead to a decrease in manufacturing efficiency and further to a decrease in the reliability of the printed wiring board.

(4) Purpose of the Invention In view of the problems of the prior art described above, the present invention has the following objectives:
The present invention aims to provide a method for controlling component mounting on a printed board using a plurality of inserters using one computer.

(5) Structure of the Invention In order to achieve the above object of the present invention, the inventor of the present application used a single computer to create a parts list that records the types of parts installed in each inserter in advance. 1 based on the parts list.
A method is provided in which component mounting data for a single printed wiring board is divided into mounting data for each inserter according to the type of component to be mounted, and the component mounting work of the inserter is controlled by the mounting data for each inserter. It is.

(6) Embodiments of the invention Hereinafter, embodiments of the invention will be described with reference to the accompanying drawings.

The figures are for explaining embodiments of the invention.
FIG. 3 is an information relationship diagram showing the flow of information necessary to control a plurality of inserters (four inserters in this embodiment). In the same figure, MF, TAIC, TA1, TA
2. TA3 represents a data file necessary for inserter control, P1, P2, P3, and P4 represent programs that perform processes such as creating the data file and receiving interrupts from the inserter;
I1, I2, I3, and I4 represent four inserters in this embodiment. In the same figure, the area surrounded by a dashed line represents a processing area by an electronic computer, the broken line arrow represents file reference or creation by a program, and the solid line arrow represents program startup.

The method of controlling component mounting on a printed wiring board in the present invention is divided into two stages. The first step is to create a data file that summarizes the types of components and mounting positions required for each inserter to mount the components, and the second step is to use the data created in the first step to mount the components by the inserter. This is the process to be performed.

Hereinafter, the components to be mounted will be described as ICs in the order of the first stage and then the second stage.

The first step is a process of allocating the device number and stake number of the inserter to be mounted in accordance with the type of component included in the printed wiring board component mounting data given in units of drawing numbers.

A drawing number corresponds to one printed wiring board, and the inserter master (data file indicated by MF in the figure, hereinafter abbreviated as table MF along with other files) stores mounting data for each drawing number.
The name of the IC to be mounted and the mounting location (XY address) of the IC are given.

On the other hand, table TAIC (IC table) has 4
The type of IC installed in each inserter and the stake number are stored together with the installed inserter number. This IC table is the basis of the inserter control method according to the present invention, and when adding a new inserter, simply write the type of parts installed in the added inserter and the stake number together with the inserter number in this table. The method of the invention may be practiced without any modification.

Program P1 refers to the two inserter masters and IC tables mentioned above, and creates a table containing four items of information for all mounted components: IC name, inserter number, stake number, and mounting position for each drawing number.
TA1 (data bank) is created, and at the same time, a table TA2 (figure number table) indicating the start address of data by figure number in the data bank is created.

In the above process, when referring to the data bank, the figure number table is referred to using the figure number as a key, and the first address in the data bank where the mounting data corresponding to the figure number is stored is obtained,
Refer to the data bank using the start address.

The above is the first step of this embodiment.

The second stage is a process of creating and providing data necessary for each inserter using the data bank and figure number table created in the first stage.

The operator of each inserter I1 to I4 inputs the figure number necessary for mounting from the operation panel of each inserter. The program P4 was started by inputting the drawing number, and the program P4 searched the drawing number table TA2 using the input drawing number as a key, and found the start address of the mounting data corresponding to the input drawing number in the data bank TA1. The post program P2 is started.

This program P2 uses the data bank TA1 using the start address obtained by the program P4.
, and using the device number of the interrupt inserter as a key, extract all data on the part name, stake number, and mounting position having the inserter number from the data corresponding to the input drawing number. The data extracted in this manner is stored in the data buffer TA3 with the component name, the stake number in which the component is mounted, and the mounting position as one storage unit. After creating the data buffer TA3 mentioned above, the program P2 starts the program P3.

Program P3 transfers the information in data buffer TA3 created by program P2 to the inserter. The inserter mounts the IC on the printed wiring board using the transferred information.

The method of the present invention is realized by the above-mentioned processing, but when one printed board is completed using four inserters as in this embodiment, the above-mentioned processing is performed sequentially from the first to the fourth inserter. This completes the mounting of components onto one printed wiring board.

Incidentally, the number of inserters used to complete one printed wiring board varies depending on the types of components to be mounted. For example, if the components mounted on the first machine include all the mounted components, four inserters can simultaneously complete four printed boards. Furthermore, at this time, if there is a mounting work that can be completed with two inserters, two types of printed boards can be completed simultaneously with four inserters. All these tasks are performed on the IC
This can be done simply by storing the name of the component mounted on each inserter and the stake number in which the component is loaded together with the inserter number in the table TAIC.

As explained above, in the method of the present invention, component mounting data for one printed wiring board is divided into mounting instructions for each inserter, and all the components to be mounted are already mounted on the inserter. , the operator of each inserter can mount components as if completing one printed wiring board independently, without replacing stakes.

(7) Effects of the Invention According to the method of the present invention, components can be mounted on a printed wiring board simply by having the operator of each inserter independently input the drawing number from the operation panel, and moreover, Since it can be easily expanded or divided by drawing number, components can be mounted on printed wiring boards efficiently, which is highly effective in improving the yield and reliability of semiconductor device manufacturing.

[Brief explanation of drawings]

The figure is an information related diagram for explaining an embodiment of the present invention. MF...Inserter master, TAIC...IC table,
TA1...data bank, TA2...figure number table,
TA3...Data buffer, P1, P2, P3...Program, I1, I2, I3, I4...Inserter.

Claims (1)

[Scope of Claims] 1. Mounting of components on a printed wiring board using a plurality of inserters each having an interrupt means for interrupting one electronic computer and equipped with a component insertion head,
In the computer-based control method, the electronic computer creates a mounting position table MF in which component names and their mounting positions on the printed wiring board are stored according to type information of the mounted components, and a mounting position table MF that is mounted on each inserter. From the inserter number table TAIC, which stores the component name and installed inserter number, as well as the mounting data bank, which stores mounting data including the component name, inserter number, and mounting position according to the type information of the mounted component.
a step of creating a TAI, then a step of creating a mounting instruction including the names and mounting positions of parts that can be mounted by the inserter that issued the interrupt instruction using the data bank according to the interrupt instruction from each inserter; 1. A method for controlling a plurality of inserters, comprising the step of transmitting a mounting instruction to the inserter, and having each inserter mount a component on a printed wiring board according to the mounting instruction.