JPH09190531A - Mounting data production method and device, inspection method for substrate and mounting state - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce mounting position data via data processing by acquiring land data necessary for a substrate on a displayed screen via image recognition processing and selecting the parts corresponding to the land data out of a parts library via retrieval processing. SOLUTION: The necessary image recognition processing including the color, shape, size, center position, etc., of an displayed image is carried out on the screen of a display. Catalog data on the shape, size, etc., of a mounting object electronic parts 9 that is produced previously and corresponding to the data on a land 8 formed on a substrate recognized in a image are edited and retrieved out of a parts library data stored in a storage medium. Thereby, the mounting parts data are produced, and the shape code image of the parts 9 corresponding to the land 8 is displayed together with a contour image obtained by processing the image of the land 8. At the same time, the shape code image of the parts 9 is overlaid to the contour image of the land 8 and the position data are produced based on the mounting position including the mounting angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a mounting data creating method and a testing method for properly mounting electronic components on a board to manufacture a circuit board.

[0002]

2. Description of the Related Art There are various types of electronic components mounted on boards for producing various circuit boards, and it is necessary to mount various electronic components on the boards to produce circuit boards. Electronic components that meet various needs set by design are selected and used. Also, at the mounting stage of electronic components, recognition of the suitability and orientation of electronic components and replacement of incorrect components and correction of orientation based on the result are performed.
Even after electronic components are mounted, the suitability of mounting is inspected for each component.

In a mounting machine or the like, a mounting position or a mounting angle for mounting a corresponding component at a predetermined angle is designated at each mounting position set in the design of a circuit board for mounting and inspection of the component. The implementation data including the data to be used is used. Conventionally, as one of the methods for creating the mounting data, the center position of the land is displayed on the screen a where the board on which the land is formed is imaged by the recognition camera using the NC data creating device as shown in FIG. Is detected by the operator, and the detected position data is used as the mounting position data of the component.

At this time, the field of view that can be simultaneously inspected by the camera is limited, and the above work can be performed only on each part of the substrate. Specifically, even if the camera b has a field of view c as shown in FIG. 15, the component A on the substrate d and the components B and C have the same size due to the relationship of the angle of view and the like. Above, the dimensions of the component A and the components B and C are different. Even if the lands e similar to each other are formed on the board d corresponding to the components A to C, the lands e for the component A are
Of the lands e of the parts B and C, but the lands e of the parts B and C outside the parts B and C in the figure are blind spots by the parts B and C and are not imaged. Therefore, the range that can be simultaneously inspected by the camera b is greatly limited.

Therefore, while the board is moved in the XY two directions which are orthogonal to each other, the center position of the land is detected and the data setting is sequentially performed, and the mounting data of the parts of the entire board is created. .

[0006]

However, if the substrate is moved in the XY two directions as described above, the area of the substrate is reduced to four.
Double the moving space is required, the plane space occupied by the device is large, and the use efficiency of the work space is deteriorated. The accuracy of detecting the land center position is 1/1000 m depending on the operator.
Since there is a variation of about m and the detection accuracy decreases with the lapse of time due to the fatigue of the eyes of the operator, it is difficult to obtain highly accurate mounting data. Furthermore, there is also a problem that the detection efficiency decreases as the eyes get tired.

An object of the present invention is to solve such a problem, and a high quality component is mounted with high accuracy by automatic data processing or image recognition of image data read from a board by an image scanner. It is an object of the present invention to provide a mounting data creating method and a mounting inspection method capable of providing various circuit boards.

[0008]

According to a mounting data creating method of the invention of claim 1, a board having a land for mounting a component is read by an image scanner, and the board is displayed on the screen by the read image data. , The required land data such as the shape and size of each land on the board, the center position, etc. are obtained by the image recognition processing on this displayed screen, and the parts corresponding to this land data are created at least for the mounting target parts. The mounted part data is created by searching and selecting the catalog data such as the shape and size from the edited part library, and the center position of each selected part matches the center position of the corresponding land. The mounting position data is created by data processing, and the mounting data creating device of the invention of claim 6 is an image forming apparatus. Image recognition that performs image recognition processing on necessary items such as color, shape, size, and center position of the displayed image on the display screen of the scanner and the display that displays the image data read by the image scanner A processing unit and a component corresponding to the image-recognized land data on the board are searched and selected from a component library prepared by editing catalog data such as at least the shape and size of at least the mounting target component. Mount component data creating means for creating mount component data, and mount position data creating means for creating mount position data in which the center position of each selected part matches the center position of the corresponding land by data processing. It is characterized by having.

In the structures of the first and sixth aspects of the invention, the operator operates the image scanner to read the board, and numerical data and image data for performing image recognition processing for each land on the display screen of the read board. The required land data such as the shape and size of each land on the board, the center position, etc., will be displayed in the full scanning range of the scanner by simply performing the input operation for various automatic data processing. It can be obtained without any blind spots, and from this land data and the component library created in advance, the mounting component data corresponding to each land data and the mounting position data in which the center position of the corresponding land and the component match are automatically generated. Since it is created in a simple manner, the mounting data required for mounting the parts can be easily and quickly created without individual differences among operators. A high precision can be created, component contributes to providing high-quality board mounted with high precision, leading to improvement in the yield. Moreover, since the image scanner can be moved within the area of the substrate, the plane space occupied by the apparatus can be small, and the efficiency of use in the workplace can be improved.

According to the second aspect of the present invention, a board having lands for mounting components is read by an image scanner, the board is displayed on the screen by the read image data, and each land of the board is displayed by the displayed screen. The necessary land data such as the shape, size, center position, etc. are obtained by image recognition processing, and the parts corresponding to this land data are edited in the catalog data such as the shape and size of at least the parts to be mounted in advance. Create mounting component data by searching and selecting from the component library
Image processing of overlaying the image of the selected component is performed on the outline image of the image of the land displayed on the screen, and the image of the overlay image is subjected to image recognition processing to obtain the mounting position data including the mounting angle of the component. According to the invention of claim 7, an image scanner, a display for displaying image data read by the image scanner, and a color, shape, and size of an image displayed on the display screen of the display. , And image recognition processing means for performing image recognition processing on necessary items such as the center position, and a part corresponding to the data of the land on the board where the image is recognized, the shape of at least the mounting target part created in advance, An actual process of creating mounted component data by searching and selecting catalog data such as size from an edited component library. The part data creation means and the image of the land displayed on the screen are displayed on the screen together with the contour image subjected to the image recognition processing by the image recognition processing means, and the image of the part corresponding to this land is displayed on the screen. And a mounting position data creating unit for creating mounting position data from mounting angle and position data for each component obtained by performing image recognition processing on the overlaid image. It is a thing.

According to the configurations of the inventions of claims 2 and 7, mounted component data can be created similarly to the inventions of claims 1 and 4, and at the same time, the component image corresponding to the outer image by the image recognition of the corresponding land can be obtained. Since the mounting position including the mounting angle of this component can be obtained simply by overlaying the image with the image processing and recognizing the overlaid image, the operation required by the operator to create the mounting position data is simplified, and the required time is reduced. Is further shortened, and work efficiency is improved.

According to a third aspect of the present invention, in any one of the first and second aspects of the present invention, the substrate having a size exceeding the reading range of the scanner is subjected to a necessary number of overlapping superposition readings to obtain the substrate. The entire image is read, and the image of the entire substrate is displayed on the screen by the image data read each time.

In such a structure, in addition to any one of the first and second aspects of the present invention, further, even if the substrate exceeds the reading range of the scanner, a partial overlapping reading is performed a necessary number of times. The entire image of the board is read and the image of the entire board is displayed on the screen with the image data read each time. It is possible to make the device, and the device does not become large depending on the size of the substrate.

According to a fourth aspect of the present invention, in addition to the one of the first to third aspects of the present invention, the component library reads a mounting target component with an image scanner to display an image, and an image recognition process is performed on the display screen. Necessary component data such as the shape and size of each component to be mounted is created and stored so that it can be edited and read.

In such a configuration, in addition to any one of the inventions of claims 1 to 3, the parts library is easily and quickly created by an image recognition process using a screen read and displayed by an image scanner. In addition, it is possible to always create a proper component library without operator's individual difference, and it is possible to contribute to proper mounting data generation.

According to a fifth aspect of the data creating method of the present invention, the substrate on which the land is formed is read by an image scanner,
Data processing and / or image recognition processing is performed on the read image data to create land position data including the land angle, and the land position data including the land angle is preset for each mounting target component. By comparing with the mounting position data including the mounting angle of the component, the displacement of the position including the angle of each land is determined, and the mounting data created in advance is read according to the determination result of the displacement. It is characterized in that the mounting data for which the deviation is determined is corrected.

With such a configuration, the data of the position including the angle of each land can be easily and quickly obtained by a procedure similar to that at the time of creating the mounting data in the inventions of claims 1 to 4, and there is no individual difference among operators. Is always obtained with high accuracy, and by comparing this with the preset mounting data, the land formed on the substrate according to the mounting data shrinks or distorts when the substrate is manufactured, and the preset mounting data Even if there is a deviation, it can be easily identified, and the mounting data created in advance is read according to the result of this deviation determination, and the mounting for which the deviation has been identified By correcting the data, it is possible to easily create appropriate mounting data that corresponds to the subsequent changes that occur during board production, and does not require a long time without complicated operations. Parts contributes to providing high-quality substrate which is further properly implemented in response to changes in manufacturing of the substrate, leading to improved yield.

According to the eighth aspect of the mounting inspection method of the present invention, the substrate on which the component is mounted is read by an image scanner, and the read image data is subjected to data processing and / or image recognition processing to mount the mounting angle of the component. Characterized by determining the mounting deviation of each mounting component by creating position data and comparing the mounting position data with mounting position data including a mounting angle preset for each mounting target component. Is.

With such a configuration, the mounting position data including the mounting angle of each component can be easily and quickly obtained by the same procedure as the mounting data according to the inventions of claims 1 to 4, and the operator's individual difference. High-accuracy mounting inspection can always be performed with high accuracy, and by simply comparing this with preset mounting data, high-accuracy mounting inspection can be performed easily and in a short time, contributing to the provision of high-quality boards. it can.

According to a ninth aspect of the invention, in addition to the seventh aspect of the invention, the mounting data created in advance is read in accordance with the displacement determination result, and the mounting data for which the displacement is determined is corrected. It is something to do.

With such a construction, in addition to the invention of claim 8, the mounting data prepared in advance can be automatically corrected according to the inspection result, which is convenient without any trouble and the data correction. Since it is hard to make mistakes in
Contributes to high-precision circuit board manufacturing.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) In the first embodiment, mounting data and inspection data are created, a component library for creating the same is created, and mounting inspection is performed based on the inspection data. A personal computer 1 as shown in FIG. 1 is used as various data processing devices for this purpose. However, the present invention is not limited to this, and a dedicated data processing device or higher-level computer can be used. The image data of the electronic components to be mounted, the lands on the board, and the mounted electronic components for creating the component library, the mounting data, and the inspection data are obtained by reading with the image scanner 2. To use.
However, the storage contents of the component electronic catalog which is an external storage medium in which various electronic components including the mounting target are edited and recorded can be read out and used as a component library.

The image scanner 2 includes a lighting unit 2a,
Line image sensor 2b, line image sensor 2b
Hakham rod lens 2c for imaging the object to be read on
Line image sensor 2b and hakam rod lens 2
It is composed of an X-axis motor 2d that moves c in the X-direction perpendicular to these longitudinal directions to scan an object to be read, and a driver 2e of the X-axis motor 2d.

According to the motor control program stored in the motor control card 4, the personal computer 1 operates the driver 2e based on the tachogenerator pulse from the image scanner 2 to operate the image scanner 2 at a predetermined speed. Read the object to be read on the platen glass. The image data read by the image scanner 2 is once input to the video card 5, edited, and registered.
The image data A registered in the video card 5 is input to the personal computer 1, is displayed on the display 6 as an image, and is used for various data processing.

As shown in FIG. 2, the personal computer 1 performs, as at least an internal function, image recognition for performing necessary image recognition processing such as color, shape, size, and center position of a display image on the display screen of the display 6. Processing means 11
And the shape of the electronic component 9 as shown in FIG. 3 corresponding to the image-recognized data of the land 8 on the substrate 7 as shown in FIG. , The mounting component data creating means 12 that creates the mounting component data C by searching and selecting from the component library data B stored in the storage medium 3 after the catalog data such as size is edited, and FIG. The image of the land 8 displayed on the screen as shown in FIG. 4A) is subjected to the image recognition processing by the image recognition processing means 11 together with the outline image 8a as shown in FIG. The shape code image 9a is displayed on the screen as shown in FIGS. 4A and 4B, and the shape code image 9a of the electronic component 9 is displayed with respect to the outer image 8a of the land 8 in FIG.
As shown in FIG. 4, the mounting position data D is created from the image processing means 13 to be overlaid and the mounting position including the mounting angle of each electronic component 9 obtained by the image recognition processing of the overlaid image of FIG. 4B. The mounting position data creating means 14 and the other control means 15 for associating these respective means with each other or for performing other control are provided. The specific configuration of each of these means is arbitrary, and a dedicated control system for each may be used, or a combination of units may be used as necessary.

Next, an operation procedure for creating mounting data will be described. The flowchart of FIG. 5 shows a procedure of initial setting operation of data in the mounting data creation mode of the personal computer 1. In Step # 1, the scanner X,
Correct the deviation of Y and the mounting angle θ. Step # 2
To correct the color temperature. In step # 3, color and white balance are corrected. Finally, in step # 4, the range magnification is corrected.

Next, a parts library is created according to the flowchart of FIG. First, in step # 11, each of the electronic components 9 to be mounted is attached to the image scanner 2
And the component data such as the component shape, size, and color of the electronic component 9 read in step # 12 are automatically measured by image recognition by the image recognition processing means 11. Subsequently, in step # 13, the measurement result of each electronic component 9 is edited in a predetermined procedure to create a component library, and the component library is stored in the storage medium 3.

The parts library can be created in various ways by combining with other parts databases and manually inputting. FIG. 7 shows an example of a screen display of an electronic component 9 having a component library.

After that, the component mounting data is created according to the flowchart of FIG. First, in step # 21, the image scanner 2 reads the substrate 7 having the land 8. In step # 22, the color of the substrate 7, the color of the land 8 and the like are displayed as shown in FIG. 4A, and the image recognition processing means 11 performs image recognition to perform automatic measurement. This may be a teaching input manually by an operator who is visually recognizing the display screen. Next, in step # 23, the shape, size, center position, etc. of the land 8 are subjected to image processing by the image processing means 13 to form an outer shape image 8a as shown in FIG. Image recognition and automatic measurement. Further, in step # 24, the mounting component data creating means 12 creates an electronic component 9 corresponding to the data of the land 8 on the substrate 7 as shown in FIG. The mounting component data C is created by searching and selecting the component library data B stored in the memory 3 by editing the catalog data such as the shape and size, and the mounting position data creating means 14 in step # 25. 4A, the image of the land 8 displayed on the screen as shown in FIG. 4A is subjected to the image recognition processing by the image recognition processing means 11 as shown in FIG. 4B.
At the same time, the shape code image 9a of the electronic component 9 corresponding to the land 8 is displayed on the screen as shown in FIGS. 4A and 4B, and the shape code image 9a of the electronic component 9 is displayed on the land 8. An image processing means 13 for overlaying the outline image 8a as shown in FIG. 4B, and a mounting including a mounting angle for each component obtained by performing image recognition processing on the overlaid image of FIG. 4B. Mounting position data D is created from the position data.

The center positions of the outline image 8a and the code image 9a are found by simulating the image data, and the image position of the outline image 8a can be converted into a signal only by supporting it with a cursor or a touch pen. The code image 9 of the electronic component 9 is added to the outer image 8a by the data processing.
a is automatically overlaid. However, any operation may be performed.

Next, in step # 26, the mounting component data and the mounting position data thus created are transferred to the other control means 15
Etc. When it is determined in step # 27 that this has been completed for all lands 8, step # 2
At 8, it is stored in the memory 3 or the like of the personal computer 1,
Perform form output processing to print as needed. FIG. 9 shows an example of the output form. This includes a display image 21 when a specific electronic component 9 on the board 7 is overlaid.
And the mounting data table 22 thus set are printed and displayed.

As described above, the operator reads the board 7 by inputting the image scanner 2 through the personal computer 1 through the operation panel 1a and the image of each land 8 on the read display screen of the board 7. By performing the input operation for various automatic data processing of the numerical data and the image data for the recognition processing, the necessary automatic data processing requires the shape and size of each land 8 of the substrate 7, the center position, etc. Land data is obtained in the full reading range of the scanner 2 without any error or blind spot, and based on this land data and the component library data created in advance, the mounted component data corresponding to each land data and the corresponding land and component Mounting position data that matches the center position of and are automatically created. Easily and in a short time, moreover, it can create a personal difference without always accurate by the operator, part contributes to providing high-quality board mounted with high precision, leading to improvement in the yield. Further, since the image scanner can be moved within the area range of the substrate 7, the plane space occupied by the device can be small, and the efficiency of use of the workplace can be improved.

By utilizing the fact that the center positions of the outline image 8a and the code image 9a are determined by simulating the image data as described above, the mounting component data generating means 12 for generating the mounting component data C and the selection are selected. The mounting position data creating means 14 for creating the mounting position data D whose center position corresponds to the center position of the corresponding land 8 for each electronic component 9 by data processing, and creates the mounting data without overlay operation. can do.

Further, as shown in FIG. 3, the substrate 7 having a size exceeding the reading range SC of the image scanner 2 is read by overlapping a part a necessary number of times to read the entire substrate, and read image data of each time. The entire image of the substrate 7 is displayed on the screen. However, the partial view may be enlarged and displayed in a window, or the image of the substrate 7 may be moved to display the entire screen.

By doing so, even if the substrate 7 exceeds the reading range of the image scanner 2, the whole of the substrate 7 is read by performing necessary overlapping readings a number of times, and the substrate 7 is read by the read image data of each time. Since the entire image of the board 7 is displayed on the screen, the mounting data corresponding to each land 8 in the entire board 7 can be continuously created in a procedural manner while visually checking the entire board 7 on the same screen. The size of the device does not become large.

(Embodiment 2) In Embodiment 2, the same image scanner and personal computer as those of Embodiment 1 are used to inspect a circuit board on which electronic parts are mounted to inspect a high quality circuit. It is intended to contribute to the provision of the substrate.

The flowchart of FIG. 10 shows the procedure of the inspection method. First, in step # 31, the mounting position data X, Y, and θ are read, and in step # 32, the mounting component data set and used in advance is read. Next step #
In 33, the circuit board on which the electronic component is mounted is read by an image scanner, and the image recognition processing means for the displayed image recognizes the image to automatically measure the mounting position including the mounting angle of the electronic component. In step # 34, the mounting position data and the mounting component data are compared with the mounting position including the mounting angle of the mounted electronic component related to the automatic measurement, and the deviation is calculated. When it is confirmed in step # 35 that this has been completed for all electronic components, a file is output in step # 36 and stored in a memory or the like. The form is also output if necessary. FIG. 11 shows an example of the output form. The table shows the amount of deviation between the display image 31 and the mounting data 32 when the component is inspected.

In this way, the board on which the components are mounted is read by the image scanner, and the read image data is subjected to data processing and / or image recognition processing, and the mounting state such as the type of the component and its mounting position and angle. To identify the mounting deviation of each mounted component by creating data that indicates the mounting state and comparing this mounting state data with the required mounting data such as the center position and angle preset for each mounting target component. In this case, the data indicating the mounting state of each component can be obtained easily and in a short time by the same procedure as the mounting data in the first embodiment, and at the same time without operator's individual difference. By simply comparing the mounting data with the mounting data, a highly accurate mounting inspection can be easily performed in a short time, which can contribute to the provision of a high-quality board.

(Third Embodiment) In the third embodiment, when the mounted electronic component has a positional deviation or an angular deviation as a result of the mounting inspection, the mounting data is corrected and a high quality circuit board is supplied. It is intended to improve the yield. This procedure is performed according to the flowchart of FIG. First, the mounting data is read in step # 41, the component information is read in step # 42, and the board is read by the image scanner in step # 43. Next, in step # 44, the component center position on the board and the mounting angle are calculated based on the data read in steps # 41 to 43, and in step # 45, the mounting positions of step # 41 and step # 44 are calculated. When it is determined in step # 46 that this is completed for all electronic components, the mounting data is corrected together with the board in step # 47.

As described above, when the mounting data prepared in advance is read in accordance with the result of discrimination of the mounting deviation and the mounting data for which the deviation is discriminated is corrected, in addition to the second embodiment, Preliminarily prepared mounting data can be automatically corrected according to the inspection result, which is convenient and hassle-free, and errors in data correction are unlikely to occur, which contributes to the manufacture of a highly accurate circuit board.

(Embodiment 4) When the land angle and position of the board on which the land is formed deviates from preset mounting data due to contraction or distortion at the manufacturing stage of the board, the electronic component is properly mounted. In some cases, this may not be possible, and the fourth embodiment simply deals with this and enables more appropriate mounting. This procedure is performed according to the flowchart of FIG. First, in step # 51, the mounting data is read, and in step # 52, the board on which the land is formed is read by the image scanner. Then, in step # 53, the position including the angle of the land on the substrate is calculated based on the data read in step # 52, and the difference between step # 51 and step # 53 is calculated in step # 54. When it is determined in step # 55 that all the lands have been completed, the mounting data is corrected in step # 56.

In the fourth embodiment as described above, the position data including the angle of each land formed on the board being manufactured can be easily and easily obtained by a procedure similar to that at the time of creating the mounting data in the first and second embodiments. It can be obtained in a short time and with high accuracy without operator's individual difference. Only by comparing this with the preset mounting data, the land formed on the substrate according to the mounting data shrinks to the substrate when the substrate is manufactured. It is possible to easily discriminate even when there is a deviation from the preset mounting data due to distortion or the like, and the mounting data created in advance is corresponding to the discrimination result of this deviation. By reading out and correcting the mounting data for which the deviation has been determined, it is possible to easily create appropriate mounting data that corresponds to subsequent changes that occur during the production of the board. It also contributes to the provision of high-quality boards in which components are properly mounted in response to changes in board manufacturing without requiring a long time for manufacturing, and also leads to an improvement in yield. .

In each of the above-described first to fourth embodiments, when it is necessary or necessary to reduce the amount of captured data when the substrate is read by the scanner, the data required for data creation and inspection while capturing the image. You can also capture images while processing only. As a result, the information such as the color of the substrate is lost to some extent, but the amount of data to be handled is reduced, so that various data processing can be performed at high speed.

[0045]

According to the first and sixth aspects of the present invention, the operator operates the image scanner to read the board, and numerical data and images for performing image recognition processing for each land on the display screen of the read board. By simply performing input operations for various automatic data processing of data, it is possible to easily and quickly create mounting data necessary for mounting parts by automatic data processing, and with high accuracy without operator-specific differences. This contributes to the provision of high-quality boards in which components are mounted with high precision and leads to improved yield. Further, since the image scanner is capable of reading the reading range of the image scanner without any error or blind spot, and it is sufficient to move the area range of the substrate by utilizing the reading range, the plane space occupied by the apparatus may be small, and the work space may be small. The utilization efficiency of can be improved.

According to the inventions of claims 2 and 7, the mounting component data can be created similarly to the inventions of claims 1 and 6, and the image of the component corresponding to the contour image by the image recognition of the corresponding land. And overlay with image processing,
Since the mounting position including the mounting angle of this component can be obtained only by recognizing the image of the overlaid image, the operation required by the operator who creates the mounting position data is simplified and the required time is further shortened, improving work efficiency. To do.

According to the third aspect of the present invention, in addition to any one of the first and second aspects of the present invention, further, even if the substrate exceeds the reading range of the scanner, a part of overlapping readings are required. The entire board is read and the image of the entire board is displayed on the screen with the image data read each time.
It is possible to continuously create mounting data corresponding to each land in the entire board in a procedural manner while visually checking the entire board on the same screen, and the size of the board does not increase the size of the device.

According to the invention of claim 4, in addition to any one of the inventions of claims 1 to 3, the parts library can be easily created by an image recognition process using a screen read and displayed by an image scanner. In addition, it is possible to always create a proper component library in a short time and without individual differences among operators, and it is possible to contribute to generation of proper mounting data.

According to the data producing method of the fifth aspect of the present invention, the land formed on the substrate in accordance with the mounting data is shrunk or distorted during the production of the substrate, and is displaced from the preset mounting data. Even in such a case, this can be easily discriminated, and by correcting the mounting data created in advance in accordance with the discriminating result of this deviation, it is possible to appropriately correct the posterior change occurring in the production of the board. Mounting data can be created easily, and high-quality components are mounted properly even in response to changes in the board manufacturing, without requiring complicated operations and requiring a long time. This contributes to the provision of high-quality substrates and leads to improved yield.

According to the invention of claim 8, claims 1 to 4,
According to the same procedure as the mounting data in the sixth aspect of the invention, data indicating the mounting state of each component can be obtained easily and easily in a short time at all times without operator's individual difference. Only by making a comparison, a highly accurate mounting inspection can be easily performed in a short time, which can contribute to the provision of a high-quality board.

According to the invention of claim 9, in addition to the invention of claim 8, further, the mounting data prepared in advance can be automatically corrected according to the inspection result, which is convenient and convenient. Since data correction is unlikely to occur, it contributes to the manufacture of highly accurate circuit boards.

In each of the above inventions, when reading a substrate with a scanner, if there is a need or demand to reduce the amount of data taken in, it is possible to create data while taking in an image.
Images can be captured while processing only the data required for inspection. As a result, the information such as the color of the substrate is lost to some extent, but the amount of data to be handled is reduced, so that various data processing can be performed at high speed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a data processing system showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of internal functions of a personal computer of the system shown in FIG.

FIG. 3 is a plan view showing a substrate and a state in which the substrate is scanned a plurality of times for reading by an image scanner.

FIG. 4 is a display screen showing a part of a data image read by an image scanner and a data creation procedure using the image.

FIG. 5 is a flowchart showing a procedure of initial setting in a mounting data creation mode.

FIG. 6 is a flowchart showing a procedure for creating a parts library.

FIG. 7 is a diagram showing a screen display of an electronic component having a created component library.

FIG. 8 is a flowchart showing a mounting data creation procedure.

FIG. 9 is a plan view showing a display example in which the created mounting data is output as a form.

FIG. 10 is a flowchart showing a procedure of a method of inspecting a circuit board on which electronic components are mounted, as a second embodiment of the present invention.

FIG. 11 is a plan view showing a display example in which inspection results are output as a form.

FIG. 12 is a flowchart showing a procedure of an inspection method for correcting mounting data based on an inspection result as the third embodiment of the present invention.

FIG. 13 is a flowchart showing a procedure of a data creating method for correcting preset mounting data by land data read by a scanner of a board as a fourth embodiment of the present invention.

FIG. 14 is a perspective view showing a conventional device that creates mounting data by using image processing or image recognition on a screen captured by a camera.

15 is a schematic diagram showing an image pickup state like the camera in FIG.

[Explanation of symbols]

 1 Personal Computer 2 Image Scanner 6 Display 7 Board 8 Land 8a Outline Image 9 Electronic Component 9a Component Code Image 11 Image Recognition Processing Means 12 Mounting Component Data Creating Means 13 Image Processing Means 14 Mounting Position Data Creating Means 15 Other Means A Image Data B parts library data C mounting parts data D mounting position data

Claims (9)

[Claims] 1. A board having lands for mounting components is read by an image scanner, the board is displayed on the screen by the read image data, and the shape and size of each land of the board is displayed on the displayed screen. , Necessary land data such as the center position is obtained by image recognition processing, and the parts corresponding to this land data are searched from the parts library created by editing the catalog data such as the shape and size of at least the parts to be mounted created in advance. Mounting is characterized by processing and selecting mounted component data, and also by mounting the mounting position data in which the center position of each selected component matches the center position of the corresponding land by data processing. Data creation method. 2. A board having lands for mounting components is read by an image scanner, the board is displayed on the screen by the read image data, and the shape and size of each land of the board is displayed on the displayed screen. , Necessary land data such as the center position is obtained by image recognition processing, and the parts corresponding to this land data are searched from the parts library created by editing the catalog data such as the shape and size of at least the parts to be mounted created in advance. The mounted component data is created by processing and selecting, and the image of the land displayed on the screen is subjected to image recognition processing, and the image of the selected component is overlaid. A mounting data creation method characterized by obtaining mounting position data including a mounting angle of a component by performing image recognition processing. 3. For a substrate having a size exceeding the reading range of the scanner, the entire substrate is read by performing necessary overlapping overlapping readings, and an image of the entire substrate is displayed on the screen with each read image data. The mounting data creation method according to any one of claims 1 and 2. 4. The component library reads a mounting target component with an image scanner to display an image, and creates necessary component data such as the shape and size of each mounting target component by image recognition processing on this display screen. 4. The mounting data creation method according to claim 1, wherein the mounting data is stored so that it can be edited and read. 5. A substrate on which lands are formed is read by an image scanner, the read image data is subjected to data processing and / or image recognition processing to create land position data including a land angle, and the land position data is created. By comparing the land position data that includes the angle with the mounting position data that includes the mounting angle of the component that is preset for each mounting target component, the displacement of the position that includes the angle of each land is determined, and the determination result of the displacement In response to the above, the mounting data created in advance is read, and the mounting data for which the deviation is discriminated is corrected, and the mounting data creating method is characterized. 6. An image scanner, a display for displaying image data read by the image scanner, and a color, shape of an image displayed on the display screen of the display,
Image recognition processing means for performing image recognition processing for necessary items such as size and center position, and parts corresponding to image-recognized land data on the board are preliminarily created Mounted component data creating means for creating mounted component data by searching and selecting catalog data such as catalog data such as size and size, and the center position of the land corresponding to the center position of each selected component And a mounting position data creating unit that creates mounting position data that matches the above by data processing. 7. An image scanner, a display for displaying image data read by the image scanner on a screen, a color and shape of an image displayed on the display screen of the display,
Image recognition processing means for performing image recognition processing for necessary items such as size and center position, and parts corresponding to image-recognized land data on the board are preliminarily created , A mounting part data creating means for creating mounting part data by searching and selecting catalog data such as size from an edited parts library, and an image recognition processing means for image recognition of land images displayed on the screen. An image processing means for displaying the image of the part corresponding to this land on the screen together with the outline image thus formed, and overlaying the image of this part on the outline image of the land, and each obtained by performing image recognition processing on the overlayed image. And a mounting position data creating means for creating mounting position data from the mounting angle and position data of the component. Mounting data creating apparatus according to claim. 8. A board on which a component is mounted is read by an image scanner, and the read image data is subjected to data processing and / or image recognition processing to create data indicating a mounting position including a mounting angle of the component. A mounting inspection method characterized by discriminating a mounting deviation of each mounted component by comparing mounting state data with mounting position data including a mounting angle of the component which is preset for each mounting target component. 9. The mounting inspection method according to claim 8, wherein mounting data created in advance is read in accordance with the displacement determination result, and the mounting data for which the displacement is determined is corrected.