JPH11150394A - Forming method of chip coordinate data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of easily forming coordinate data of high reliability as to a chip. SOLUTION: The picture image of a sample substrate 50 is captured by an image scanner, the picture image data of the sample substrate 50 captured by the scanner are registered in a substrate image memory and displayed on a monitor screen 30 at the same time. After the coordinate system of a substrate is defined, a certain chip is selected out of chips displayed on the window of the monitor screen 30 in accordance with a job instruction where data regarding to the types and mounting positions of chips are described, and the mounting position of the selected chip is indicated with a certain land on the picture image of the sample substrate 50 displayed on the monitor screen 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of preparing coordinate data of a chip for mounting a chip of a predetermined type at a predetermined coordinate position on a substrate in an electronic component mounting apparatus.

[0002]

2. Description of the Related Art An electronic component mounting apparatus mounts a chip of a predetermined type provided in a parts feeder at a predetermined coordinate position on a substrate. Therefore, prior to mounting the chip on the substrate with the electronic component mounting apparatus. The coordinate data of the chip must be created, and the created coordinate data must be input to the control unit of the electronic component mounting apparatus.

Conventionally, in small and medium-sized production factories with few facilities and staff, coordinate data of chips has been created as follows. That is, since the chip is mounted on the land (electrode) of the circuit pattern, the operator measures the X-coordinate position and the Y-coordinate position of the land of the circuit pattern on the sample substrate by applying a scale, and determines the measurement result as a type of the chip. At the same time, the user operates the keyboard to input data to the memory of the control unit of the electronic component mounting apparatus.

[0004]

However, the above-mentioned conventional method requires a great deal of labor and time because the operator must carefully measure the positions of the lands one by one and input the measurement results using a keyboard. there were. In addition, since measurement errors and keyboard input errors are likely to occur due to scale, after inputting the coordinate data of the chip into the memory of the control unit, the electronic component mounting device is actually tested according to the input data and the chip is tested on the board. The operator inspects the board mounted and test-installed to check for errors.If there is an error, the measurement and input must be performed again, and the labor burden on the operator is enormous. Was.

In recent years, in particular, in recent years, chips have been often mounted on various types of substrates. However, since coordinate data of the chips must be generated each time the type of substrate changes, a highly reliable chip is required. There has been a long-awaited need for a method of easily creating coordinate data.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method capable of easily creating coordinate data of a highly reliable chip.

[0007]

According to the present invention, there is provided a method for generating coordinate data of a chip, comprising: picking up an image of a sample substrate with an image scanner, registering the captured image data in a substrate image storage unit, and storing an image of the sample substrate. According to the work instructions that describe the process of displaying on the monitor screen, the process of defining the coordinate system of the board, and the information on the type and mounting position of the chip, select the relevant chip from the chips displayed on the monitor screen window. And instructing one of the lands in the image of the sample substrate displayed on the monitor screen on the mounting position of the selected chip.

[0010] According to the present invention having the above-described structure, while watching the monitor screen on which the image of the sample substrate is displayed, a very simple operation of designating the mounting position of each chip to the land of the image of the substrate can be performed. Coordinate data can be created.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an apparatus for creating coordinate data of a chip according to an embodiment of the present invention, FIG. 2 is a block diagram of an apparatus for creating coordinate data of the chip, FIG. 3 is a monitor screen view, and FIGS. Is a flowchart showing a procedure for creating coordinate data of the chip, and FIG. 6 is a plan view of the work instruction sheet.

In FIG. 1, a device for creating coordinate data of a chip comprises a personal computer 1, a monitor TV 2, input means such as a keyboard 3 and a mouse 4, and an image scanner 5. 6 is a CD-ROM as an external storage medium
And data such as the name of a chip (hereinafter, also referred to as “parts”) mounted on the substrate and the shape of the chip are stored.

In FIG. 2, reference numeral 10 denotes an element built in the personal computer body 1, which includes a control means 11, a board image storage unit 12, a coordinate system storage unit 13, a component shape display unit 14, a mounting coordinate calculation unit 15, and an image. The scanner control unit 16, the external storage medium reading unit 17, the mouse control unit 18, the storage element driver 19, the monitor control unit 20, the keyboard control unit 21, the component mounting position storage unit 22, and the like are connected via a bus 23. A storage element 24 such as a floppy disk is inserted into the storage element driver 19.

The board image storage section 12 stores the board image data read by the image scanner 5. The coordinate system storage unit 13 stores the defined coordinate system of the substrate. The method of defining the coordinate system of the substrate will be described later. The component shape display unit 14 displays the shape of the component (chip) on a monitor screen based on the component shape data such as the shape and dimensions of the chip stored in the CD-ROM (external storage medium) 6. The mounting coordinate calculator 15 calculates the mounting coordinates of the chip specified on the monitor screen by the mouse 4.

Next, the monitor screen of FIG. 3 will be described. The monitor screen 30 has windows such as a board display window 31, a component type window 32, a component name display window 33, an enlarged window 34, and a component display window 35. Further, an image reading button 36, a coordinate definition button 37, a mounting position button 38, a mounting order button 3
9, a confirm button 40, an end button 41, and the like are displayed. In FIG. 3, C1, C2, C3... Are chips displayed on the monitor screen 30.

This device for forming coordinate data of a chip has the above-described configuration. Next, a method for forming coordinate data of a chip will be described with reference to the flowchart of FIG.

First, in step 1, an image of the sample substrate is picked up by the image scanner 5 (at this time, the image reading button 36 is pressed). The captured image data of the sample substrate is registered in the substrate image storage unit 12 and displayed on the substrate display window 31 of the monitor screen 30. FIG.
In the figure, reference numeral 50 denotes a displayed sample substrate, and lands 51, 52, 53, 54, and 55 of a circuit pattern, a coordinate origin mark 60, an X coordinate axis mark 61, and a Y coordinate mark 6
2 is projected.

Next, in step 2, the coordinate system of the substrate is defined after pressing the coordinate definition button 37. This is performed by operating the mouse 4 and first pointing the coordinate origin mark 60 with the pointer P, and then pointing the X coordinate axis mark 61 and the Y coordinate axis mark 62. When the instruction is completed, the enter button 40 is pressed. As described above, the coordinate system of the substrate is defined and stored in the coordinate system storage unit 13.

Next, at step 3, after pressing the mounting position button 38, the mounting position of the chip is designated.
This work is performed while the worker looks at mounting position data such as a work instruction sheet. FIG. 6 is an example of the work position instruction sheet.
The work instruction sheet 70 includes a drawing (information) indicating a chip mounting position and a component name. The contents of step 3 will be described in more detail with reference to the flowchart of FIG.

(1) A corresponding chip is designated by the pointer P and selected from chips of various types displayed in the component type window 32 (step 3-1). Then C
The component name of the corresponding chip is read from the D-ROM 6 and displayed on the component name display window 33.

(2) Next, the corresponding part name is selected (clicked) from the displayed part names (Step 3).
2). Then, the component information including the shape, dimensions, manufacturer name, characteristics, etc. of the corresponding component name is read from the CD-ROM 6 and displayed on the component display window 35.

(3) Next, the user designates the mounting position of the selected component (step 3-3). This is done by using the mouse 4 to move the pointer P onto the board 50 displayed in the board display window 31 and instructing by clicking the left button of the mouse 4 at the component mounting position (land position). Alternatively, the instruction may be given by a drag-and-drop operation. Then, a component (chip) is graphically displayed at the designated position. This part is enlarged and displayed in the enlargement window 34. Therefore, in the enlarged window 34,
The position of the component is finely adjusted using the mouse 4, and the electrode of the component is accurately adjusted to the land (step 3-4). In this case, when changing the direction of the component, the right button of the mouse 4 is pressed to change the direction of the component in units of 90 °. The enlarged window 34 in FIG. 3 shows a state in which the electrode E of the chip C6 is aligned with the land 52.

(4) When the component mounting position is determined as described above, the enter button 41 is pressed (step 3-5). Then, data of coordinates and angles (directions) in the coordinate system defined as described above are stored in the component mounting position storage unit 22 together with the names of the components.

(5) To specify another mounting position with the same component, repeat (3) and (4). (2), (3), (4) when indicating the mounting position of other parts of the same type
Repeat. In order to indicate the mounting position of a component of a different type, the steps (1) to (4) are repeated. As described above, coordinate data of all chips is completed. The completed coordinate data is stored in the component mounting position storage unit 22 and copied to the storage element 23. Then, the storage element 23 is set in the electronic component mounting apparatus, and the chip is mounted.

[0023]

According to the present invention, the coordinate data of a chip can be obtained by a very simple operation of indicating the mounting position of each chip on the land of the image while watching the monitor screen on which the image of the sample substrate is displayed. Can be created.

[Brief description of the drawings]

FIG. 1 is a perspective view of a device for creating coordinate data of a chip according to an embodiment of the present invention;

FIG. 2 is a block diagram of a device for creating coordinate data of a chip according to an embodiment of the present invention;

FIG. 3 is a monitor screen according to the embodiment of the present invention.

FIG. 4 is a flowchart showing a procedure for creating coordinate data of a chip according to an embodiment of the present invention;

FIG. 5 is a flowchart illustrating a procedure for creating coordinate data of a chip according to an embodiment of the present invention;

FIG. 6 is a plan view of a work instruction sheet according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 PC main body 2 Monitor television 3 Keyboard 4 Mouse 5 Image scanner 30 Monitor screen 50 Sample board 70 Work instructions

Claims (1)

[Claims] 1. A step of capturing an image of a sample substrate by an image scanner, registering the captured image data in a substrate image storage unit, displaying an image of the sample substrate on a monitor screen, and defining a coordinate system of the substrate. According to the work instructions that describe the type and mounting position of the chip, select the relevant chip from the chips displayed in the window of the monitor screen and display the mounting position of the selected chip on the monitor screen Instructing any one of the lands in the image of the sample substrate to be executed.