JPS6370479A - Marking of printed wiring board - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is for displaying the types, serial numbers, and mounting positions of a plurality of electronic components mounted on a printed wiring board on a circuit diagram. This invention relates to a method for marking printed wiring boards.

(Prior art) A conventional marking method for displaying electronic components mounted on a printed wiring board on a circuit diagram involves assigning codes to each row and column and marking the position of each component, as shown in Figure 3. There is a location method for displaying parts, and a serial numbering method for displaying each part with a serial number as shown in FIG. However, such a method is effective when the components to be mounted are integrated circuits (ICs) with about 20 pins, resistors, capacitors, etc., and can be arranged with some regularity. However, in recent years, parts have been made into chips and highly integrated circuits (LSI) have been introduced.
As technology advances and high-density packaging is achieved as shown in FIG. 5, the arrangement of components becomes irregular, and the above marking method has the problem of making it difficult to see where components are mounted.

(Problems to be Solved by the Invention) The present invention solves the problems of the conventional printed wiring board marking method.
This solves the problem of the electronic components being placed irregularly in high-density mounting, making it difficult to determine the mounting position of the components. The purpose of the present invention is to provide a marking method for printed wiring boards that can be used.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a circuit diagram showing the types, serial numbers, and mounting positions of a plurality of electronic components mounted on a printed wiring board. In order to display the above, the printed wiring board is divided into a plurality of blocks in a grid pattern, and each of these blocks is displayed with symbols indicating rows and columns, as well as the type and serial number of the electrical component. A symbol indicating the block is added to the symbol indicating the block.

(Function) According to the above method, when searching for the mounting position of an electronic component mounted on a printed wiring board on a circuit diagram showing the connection of components, a symbol indicating a block with a grid equinox υj on the printed wiring board is used. , symbols indicating the type and serial number of electrical parts are recorded on the circuit diagram as symbols for one week.
It is possible to easily determine where the component is mounted on the printed distribution board.

(Example) Hereinafter, an example of the method for marking a printed layout board according to the present invention will be described with reference to FIG.

An embodiment of the present invention is shown in FIGS. 1 and 2. FIG.

As shown in FIG. 1, three boundary lines 2 are formed at equal intervals in the vertical direction on a printed wiring board 1, and two boundary lines 3 are formed at equal intervals in the horizontal direction. Then, the blocks divided into 12 were constructed vertically, II, III, horizontally A, B, C,
For example, blocks are marked as AI, BII, etc. with the symbol D. For example, the electronic components 4R1 to R5 mounted in the AI block are each
As shown in FIG. 2, symbols such as A-RI and A-R2 are marked at the positions of the corresponding electronic components in the circuit diagram. Here 81. R2 and the like are resistors and indicate the type and serial number of the electronic component.

Next, the functions and effects of this embodiment will be described. Printed wiring board 1 is placed at the position of each electronic component on the circuit diagram showing the connection of electronic components.
For example, the symbol A1 is marked to indicate the position where each of the above electronic components is mounted, so the position of the block on the printed wiring board 1 where this electronic component is mounted can be known by the symbol with the first two letters. be able to.

Then, the type and serial number of the mounted electronic component can be known by the latter two characters, for example R1. Furthermore, when mounting small components such as chip components, checking whether the solder is securely attached can be performed for each block to reduce the number of missed checks. It goes without saying that the number of boundary lines is not limited to the number shown in this embodiment.

[Effects of the Invention] As described above, according to the present invention, a printed wiring board is divided into blocks in a grid pattern, symbols indicating rows and columns are attached to each of these blocks, and these symbols are implemented in this block. We marked the position of the electronic component on the circuit diagram with a symbol indicating the type and serial number of the electronic component.
You can easily find the printed wiring (on the opposite side) where the electronic components shown on the circuit diagram are mounted.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the printed wiring board marking method according to the present invention, FIG. 2 is a plan view showing the display on a circuit diagram according to the present embodiment, and FIGS. Figure 5 is a plan view showing an example of mounting electronic components on a gland distribution board. 1...Printed wiring, temporary 4...Electronic parts AI, B
II...Block symbol R1, R2...Part 1 classification and serial number symbol Agent Patent attorney Nori Chika Ken Yushu Sanno - Product Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In order to display the types, serial numbers, and mounting positions of multiple electronic components mounted on a printed wiring board on a circuit diagram, the printed wiring board is divided into multiple blocks in a grid pattern, and each block is marked with a A method for marking a printed wiring board, characterized in that a symbol indicating a row and a column is also displayed, and a symbol indicating the type and serial number of the electrical component is added to the symbol indicating the block.