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11. 发明专利

JPH05315800A INSPECTION DATA PRODUCING DEVICE FOR INSTALLATED PARTS 失效
公开(公告)号：JPH05315800A
公开(公告)日：1993-11-26
申请号：JP12161492
申请日：1992-05-14
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SEKITO TAKUMI , SETA JUNZO , TOBA HIROKADO , YASUDA AKIO , KOSEKI YOKO , KODAMA TOMOAKI
IPC分类号： H05K13/08 , G06T1/00 , G06T7/00 , G06F15/62
摘要： PURPOSE:To judge automatically and with high precision whether the mounted conditions of parts are good or not, by detecting whether the height of the parts is within a constant range or not. CONSTITUTION:Judging whether good or not is done by detecting the height of parts in an inspection judging circuit 13. Subsequently, the judgment result is outputted to an inferring circuit 15, and a standard inspection area is optimized on the basis of knowledges registered in a driven knowledge memory 14. Whether the mounted conditions of parts are good or not is automatically judged without being influenced by part arrangement.

12. 发明专利

JPH04352079A DEVICE FOR INSPECTING APPEARANCE OF MOUNTING SUBSTRATE 失效
公开(公告)号：JPH04352079A
公开(公告)日：1992-12-07
申请号：JP12432391
申请日：1991-05-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SEKITO TAKUMI , TOBA HIROKADO , IKETANI KAZUTOSHI
IPC分类号： G01B11/24 , G06T1/00 , G06T7/00 , H05K13/08
摘要： PURPOSE:To improve the accuracy of inspection by detecting defective mounting such as the floating of a lead without being influenced by the warp of a substrate or the shift of a lead within a allowance. CONSTITUTION:A printed substrate 11 on which parts 12 are mounted is scanned with laser beams 16, its reflected beams are converged on a position detecting element 22 and the height data of the parts 12 mounted on the printed substrate 11 are computed based upon a position signal 23 outputted from the element 22. Within a mask set up on the mounting position of the parts 12, the height of the 2nd submask set up on a substrate face is subtracted from the height of the 1st submask to be moved on the upper face of a lead. A subtracted value larger than a computing threshold is set up as the height of the lead. Since the mounting state of the parts 12 is judged by a judging processing means 28 based upon the obtained height, defective mounting such as the floating of the lead can be detected without being influenced by the warp of the substrate or the shift of the lead with in the allowance.

13. 发明专利

JPH0399207A INSPECTION APPARATUS FOR MOUNTING BOARD 失效
公开(公告)号：JPH0399207A
公开(公告)日：1991-04-24
申请号：JP23615889
申请日：1989-09-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MARUYAMA YUJI , IKETANI KAZUTOSHI , TSUDA YUKIFUMI , SANNOMIYA KUNIO , SEKITO TAKUMI
IPC分类号： G01B11/00 , G01B11/02 , G01B11/24 , G01B11/245 , H05K13/08
摘要： PURPOSE:To detect three-dimensional defects by guiding scattering light obtained by the scanning with laser light to position detecting elements arranged at symmetrical positions, operating luminance data and height data based the obtained amount of light, and selecting the actually measured data based on the difference in height data. CONSTITUTION:A printed board 101 on which a component 102 are mounted is moved with a transfer means 103. The upper part of the board 101 is scanned with laser light 106 from a laser light source 105 through a polygon mirror 107 and an ftheta lens 109. The scattering light obtained by the reflection is converged on position detecting elements 114 and 115 through reflecting mirrors 110 and 111, the lens 109 and the mirror 107. The luminance data and the height data of the component are operated in an image operation means 118 based on the a obtained amount of light. The actually measured height data are selected in an integrated operation means 119 based on the difference in height data. The data are compared with reference height data in a decision and operation means 120. Thus the quality of the mounted state of the component is decided.

14. 发明专利

JPH05332745A INSPECTING DEVICE FOR CREAM SOLDER PRINTED APPEARANCE 失效
公开(公告)号：JPH05332745A
公开(公告)日：1993-12-14
申请号：JP14407292
申请日：1992-06-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TOBA HIROKADO , SEKITO TAKUMI , SETA JUNZO , YASUDA AKIO , KOSEKI YOKO , KODAMA TOMOAKI
IPC分类号： B41F15/08 , B41F33/14 , G01B11/24 , G01B11/245 , G01N21/88 , G01N21/956 , H05K3/34
摘要： PURPOSE:To improve the inspection precision for cream solder printing failure such as a printing blur regardless of the material of a mounted circuit board. CONSTITUTION:A laser beam 16 is scanned on a printed circuit board 11 on which a cream solder 12 is printed, the reflected light is converged on position detecting elements 22a, 22b, and from this position signal S23, the height data of the cream solder 12 printed on the printed circuit board 11 is operated. The true volume is determined in a corrected volume arithmetic part, considering the value of a correction value memory part, and the quality of the printed state of the cream solder is precisely inspected without being influenced by the material of the circuit board.

15. 发明专利

JPH05327300A MOUNTING BOARD EXTERNAL APPEARANCE INSPECTING APPARATUS 失效
公开(公告)号：JPH05327300A
公开(公告)日：1993-12-10
申请号：JP13324492
申请日：1992-05-26
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KODAMA TOMOAKI , TOBA HIROKADO , SEKITO TAKUMI , SETA JUNZO , YASUDA AKIO , KOSEKI YOKO
IPC分类号： G01B11/24 , G01N21/88 , G01N21/956 , G06T1/00 , H05K13/08 , G06F15/62
摘要： PURPOSE:To improve an inspecting accuracy by accurately and simply deciding propriety of a component mounting state without influence of a deviation of a package from leads and an irregularity in size of the package. CONSTITUTION:A laser light 16 is scanned on a printed board 11 in which a component 12 is mounted, its reflected light is condensed on a position detector 22, and height and luminance data of the component 12 mounted on the board 11 are calculated from its position signal 23. A position of a lead is calculated from a luminance mean value of a submask moving on an upper surface of the lead in a mask provided at a mounting position of the component 12. The position of the lead is compared with a deciding threshold value thereby to decide a deviation of the mounting position of the component 12.

16. 发明专利

JPH05302819A 失效
公开(公告)号：JPH05302819A
公开(公告)日：1993-11-16
申请号：JP10964492
申请日：1992-04-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SETA JUNZO , TOBA HIROKADO , YASUDA AKIO , SEKITO TAKUMI , KOSEKI YOKO , KODAMA TOMOAKI
IPC分类号： G01B11/24 , G01N21/88 , G01N21/956 , G06T1/00 , H05K13/08 , G06F15/62
摘要： PURPOSE:To obtain a visual inspection method for loaded base plate capable of inspecting the packaged state of the parts mounted on a printed board with high inspection accuracy and exactness. CONSTITUTION:A printed circuit board 1 packaged with parts 2 is scanned by a laser beam. The scattered light positive varying with the roughness on the packaged board is detected. From the position signals, the average of the region elevation of a submask 18 adjacent to the parts 2 on the printed board 1 is calculated and the average of the parts 2 elevation in the mask 17 region is calculated. A judged value obtained by adding a threshold value to the printed board 1 elevation in the submask 18 region is compared with the elevation of the parts 2 in the mask 17 region. As the printed board 1 elevation in the submask 18 region is calculated at each moment, good or bad judgment of packaged state of the parts is available without being affected by printed board bend, part displacement within a tolerable range and dimensional tolerance, etc.

17. 发明专利

JPH05135157A OUTWARD APPEARANCE INSPECTION DEVICE FOR MOUNTED SUBSTRATE 失效
公开(公告)号：JPH05135157A
公开(公告)日：1993-06-01
申请号：JP29410891
申请日：1991-11-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SEKITO TAKUMI , TOBA HIROKADO , HAYASHI EIICHI , KODAMA TOMOAKI
IPC分类号： G01R31/28 , G06T1/00 , G06T7/00
摘要： PURPOSE:To provide a mounted substrate outward appearance inspection device which is improved in inspection precision by detecting a defect in mounting such as a bridge between leads and a foreign matter without being affected by the curvature of the substrate nor a lead shift within a permissible range. CONSTITUTION:A printed board 11 where a component 12 is mounted is scanned with laser light 16 and an image arithmetic processing means 24 processes height data on the component 12 mounted on the printed board 11. An inter-lead position determining means 27 calculates an inter-lead position from the height of a 1st submask which moves on the top surfaces of leads in a 1st mask set at the mounting position of the component 12. A decision processing means 31 calculates variance in the height when the inside of a 2nd mask set at the inter-lead position is scanned with a 2nd submask and decides the mounting state of the component 12 according to whether or not the variance is larger than a decision making threshold value.

18. 发明专利

JPH04352287A OUTWARD APPEARANCE INSPECTION DEVICE FOR MOUNTED SUBSTRATE 失效
公开(公告)号：JPH04352287A
公开(公告)日：1992-12-07
申请号：JP12765291
申请日：1991-05-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YASUDA AKIO , TOBA HIROKADO , KOBAYASHI SADAYUKI , SEKITO TAKUMI
IPC分类号： G01B11/24 , G01B11/245 , G06T1/00 , G06T7/00 , H05K13/02
摘要： PURPOSE:To improve the reliability of inspection by using stable brightness information which is not affected by the surface state of the substrate as to the mounted substrate outward appearance inspection device which uses a light. cutting method. CONSTITUTION:Brightness information is obtained by a 3rd brightness sensor 16 which detects a direct reflection component on the substrate in addition to two PSDs 10 and 11 which are used conventionally to obtain height and brightness data, and the brightness data with high reliability is obtained by a composing means which composes the brightness data, thereby adapting this device to the inspection of the substrate which is in an unstable surface state before.

19. 发明专利

JPH0429004A PACKAGING BOARD INSPECTING DEVICE 失效
公开(公告)号：JPH0429004A
公开(公告)日：1992-01-31
申请号：JP13592390
申请日：1990-05-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IKETANI KAZUTOSHI , TSUDA YUKIFUMI , SANNOMIYA KUNIO , MARUYAMA YUJI , SEKITO TAKUMI
IPC分类号： G01B11/00 , G01B11/02 , G01B11/24
摘要： PURPOSE:To detect the displacement quantity of a board by measuring height data and brightness data on components on a printed board and finding the edge position of an overcoating part formed on the board from the difference between the brightness data. CONSTITUTION:In an image arithmetic processing means 114, the photocurrent signal 113 from a position detecting element is inputted to a position arithmetic circuit 202 through an A/D converter 201. The circuit 202 calculates the height data, which are stored in a height data storage memory 203. Further, the brightness data are calculated by a brightness arithmetic circuit 204 and stored in a brightness data storage memory 205. A position detecting means 115 reads the brightness data in the vicinity of the boundary of the overcoating part out of a memory 205 through a mask storage means 117, calculates the edge coordinates of the overcoating part from the difference value between the brightness data on the boundary part, and outputs them as the quantities of deviation from reference coordinates to a decision processing means 116. The means 116 extracts the brightness and height data based on the quantities of position deviation and mask data from the means 117 and compares them with reference values by a comparator 207 to decide the difference by a decision circuit 208.

20. 发明专利

JPH03188306A APPARATUS FOR VISUAL INSPECTION OF MOUNTING BOARD 失效
公开(公告)号：JPH03188306A
公开(公告)日：1991-08-16
申请号：JP32910389
申请日：1989-12-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SEKITO TAKUMI , TOBA HIROKADO , SANNOMIYA KUNIO , IKETANI KAZUTOSHI
IPC分类号： G01B11/24 , G06T1/00 , H05K13/08
摘要： PURPOSE:To inspect positional shift regardless of the warpage of a board by calculating a floating threshold value from the peak of the frequency distribution of the heights of the mounting parts on the board and respectively comparing an area at a point higher than the floating thresholed value and the difference between two peaks of the frequency distribution with a reference threshold value. CONSTITUTION:The height of the part 22 mounted on a printed circuit board 21 and the surface height of the printed circuit board 21 are measured by a three-dimensional coordinates measuring part 23. A mask data memory 31 is referred to with respect to the obtained height data and the frequency distribution of the data is prepared at every mask by a frequency distribution calculation circuit 26 while the peak of the frequency distribution is calculated by a peak calculation circuit 27 and the average value of two heights where the frequency distribution becomes a peak is set to a floating threshold value by a floating threshold value calculation circuit 28. An area at a point higher than the floating threshold value is calculated by an area count circuit 29 and the difference between two heights where the frequency distribution becomes a peak is calculated by a subtractor circuit 30. These values are compared with a reference threshold value to judge quality.

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