CN101398462A - Paster bonding wire automatic detection system - Google Patents
Paster bonding wire automatic detection system Download PDFInfo
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- CN101398462A CN101398462A CNA2008100683084A CN200810068308A CN101398462A CN 101398462 A CN101398462 A CN 101398462A CN A2008100683084 A CNA2008100683084 A CN A2008100683084A CN 200810068308 A CN200810068308 A CN 200810068308A CN 101398462 A CN101398462 A CN 101398462A
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Abstract
The invention discloses a patch weld line automatic detecting system which comprises an organism and a working system. The outside of the organism is provided with a liquid crystal display, a start button, a stop button, a workbench and a patch PCBA tray, and the patch PCBA tray is arranged on the workbench which is provided with a workbench safety hood; the organism is internally provided with the working system which comprises a Y axle synchronous belt, a light source, a lens, a CCD camera, a CCD camera support and an X axle synchronous belt; the workbench is provided with the light source above the Y axle synchronous belt and is fixed at the bottom part of the CCD camera support; the bottom of the CCD camera support is provided with the lens, and the CCD camera is fixed at the top of the CCD camera support; the X axle synchronous belt is arranged on a fixed transmission shaft of a rear side plate, and the X axle synchronous belt and the Y axle synchronous belt are respectively arranged on the corresponding servo motors; the designed structure of the software of the working system includes an initialization module, a parameter setting module, an operation control module and a weld line detection module, and the adopted software of the working system is a CCD detecting program. The patch weld line automatic detecting system in the invention realizes the automatic detection of products, is simple in operation, and improves the detection speed and precision.
Description
Technical field
The present invention relates to a kind of checkout facility of mount technology, refer to paster bonding wire automatic detection system especially.
Background technology
Automated optical detects AOI (Auto-Optical-Inspection) system, promptly obtain the measured object figure with optical instrument, general illumination image and the digitizing that obtains to detect thing by a sensor (video camera), someways compare then, analyze, check and judge, be equivalent to artificial visual is detected robotization, intellectuality.Different AOI are soft, hardware design respectively has characteristics, and all in all, its analysis, evaluation algorithm can be divided into two kinds, i.e. design rule check (DRC) and Figure recognition check.The DRC method is according to some given rule detection figures; Feature recognition technique is that the digitizing figure that will store in the AOI system compares with the experiment detected image, thereby obtains testing result.And the automatic checkout system of bonding wire promptly has the DRC method that feature recognition technique is arranged, and has also added the disposal route according to the uniqueness of the concrete characteristics of bonding wire simultaneously.
The technology of bonding wire once here is described: so-called bonding wire (Bonding) is COB (Chip-on-Board), also be referred to as chip directly placed technology, be methods such as employing bonding agent or automatic tape welding, wire bond, flip chip bonding, the direct binding of the naked die of integrated circuit (IC) chip is mounted on the circuit board.Because its performance is more superior, integrated level is higher, volume is littler, stronger ease for use, the product process flow of more simplifying, lower cost and being widely used, and be to finish by the functional test of Manual Visual Inspection and product to the detection of current bonding wire, operation is: bonding wire-prestige line (visual inspection)-functional test (FCT) ...; Operation is after using AOI: defective products functional test (FCT) behind bonding wire-AOI-AOI ...; The detection speed of AOI is fast, approximately be 5 times of functional test, so improved the efficient of producing greatly, saved production cost of products, AOI can be fit to detect different products simultaneously, and former functional test (FCT) can only be at a kind of product, and the AOI cost that the user drops into approximately was recoverable in 4-6 month.The equipment contrast is as follows:
| Detection mode | Equipment cost | Accuracy rate | Efficient | Detect cost | Transplant | Plant maintenance |
| The FCT original device | 1.5 ten thousand | 99.9％ | 1 times | 7 yuan/110PCS | Can not | Difficult |
| The AOI automatic system | About 100,000 | 99.5％ | 5 times | 1.4 unit/110PCS | Easily | Easily |
The difficult point that bonding wire is detected is:
1, because chip places the uncertainty of wiring board position, the chip that is welded just exists uncertain to bonding wire (sealing wire) position of wiring board; 2, how to judge the quality of a single line: the existence of line, broken string, the length of line etc.; 3, the short circuit between line and the line, the spacing judgement between line and the line etc.; 4, the silver slurry overflows influence to bonding wire identification or the like, as shown in figure 25.At above characteristics, by with user's experiment repeatedly, the development of the applicant's success one cover be fit to bonding wire automatic detection system.
Summary of the invention
The purpose of this reality invention is to provide a kind of paster bonding wire automatic detection system, and this software product of this system carries out accurate transmission based on the XY motion platform with servomotor, and CCD carries out vision and gathers automatically, reaches automatic testing product by digital image processing.
Another purpose of this reality invention is to provide a kind of simple to operate, and can accurately judge IC bonding wire problem fast, improves the speed and the precision that detect, saves the paster bonding wire automatic detection system of cost.
For achieving the above object, technical solution of the present invention is:
A kind of paster bonding wire automatic detection system, it is provided with and includes body and work system, described engine body exterior is provided with LCD, start button, stop button, workbench and paster PCBA pallet, and paster PCBA pallet is located on the workbench, and workbench is provided with the platform safety cover;
Described internal body is provided with work system, described work system includes Y-axis, and band, light source, camera lens, CCD camera, CCD camera bearing, X-axis are with composition synchronously synchronously, described workbench is positioned at Y-axis and is provided with light source in the top of band synchronously, be fixed in the bottom that CCD phase support props up, the bottom that described CCD phase support props up is provided with camera lens, the CCD camera is fixed in the top of CCD camera bearing, described X-axis band synchronously is located on the fixed conveyor axle of body rear side panel, and Y-axis is with synchronously and the synchronous band of X-axis all is arranged on its corresponding servomotor;
The software setting structure of described work system includes: initialization module, parameter are provided with module, motion-control module, bonding wire detection module composition, and the working software that described work system adopts is the CCD trace routine.
Described initialization module is used for initializers parameter and product test parameter, described parameter is provided with module and is used to be provided with software parameter and product test parameter, described motion-control module is used to control the XY motion platform, make product arrive appointed positions, thereby obtain rational product image by video camera, described bonding wire detection module is used for product image is carried out image processing, and the result of image processing is automatically identified by the quality of automatic identification algorithm with product.
After adopting such scheme, the present invention adopts is to be provided with the paster bonding wire automatic detection system that initialization module, parameter are provided with module, motion-control module, bonding wire detection module in the work system, this software product is based on the XY motion platform, carry out accurate transmission with servomotor, the CCD camera carries out vision to be gathered automatically, reaches automatic testing product purpose by digital image processing.Paster bonding wire automatic detection system of the present invention is mainly served industrial product automation and detected, and is simple to operate, and can accurately judge the IC bonding wire problem that general human eye can't directly be judged fast, as short circuit, opens circuit, multi-thread, problems such as few line.Not only improve the speed and the precision that detect, also saved lot of manpower and material resources, really realized the robotization that product detects.
The present invention is described in further detail below in conjunction with drawings and embodiments:
Description of drawings
Fig. 1 is a structure outside drawing of the present invention;
Fig. 2 is a work system structural representation of the present invention;
Fig. 3 is a work system structural representation block scheme of the present invention;
Fig. 4 is a workflow diagram of the present invention;
Fig. 5-the 8th, login system synoptic diagram of the present invention;
Fig. 9-the 11st, the present invention add type and revise the password synoptic diagram;
Figure 12-the 24th, system master of the present invention interface analysis diagram and system parameter setting figure;
Figure 25 is a bonding wire distribution signal reference diagram.
The figure number explanation:
1, body 11, LCD 12, start button 13, stop button 14, workbench 15, paster PCBA pallet 21, Y-axis are with 22 synchronously, light source 23, camera lens 24, CCD camera 241, CCD camera bearing 25, X-axis are with 201 synchronously, initialization module 202, parameter are provided with module 203, motion-control module 204, bonding wire detection module 2, work system
Embodiment
A kind of paster bonding wire automatic detection system, shown in Fig. 1-2, its external structure setting includes: body 1, be provided with LCD 11, start button 12, stop button 13, workbench 14 and paster PCBA pallet 15 at interface, body 1 top, wherein paster PCBA pallet 15 is located on the workbench 14, and workbench is provided with platform safety cover 141; The switch of start button 12 and the following work system 2 of stop button 13 controls;
Be provided with work system 2 in the body 1, it includes: Y-axis is with 21 synchronously, light source 22, camera lens 23, CCD camera 24, CCD camera bearing 241, X-axis are with 25 to form synchronously, described Y-axis is with 21 to be located on the workbench 14 synchronously, described workbench 14 is positioned at Y-axis and is provided with light source 22 with 21 top synchronously and is fixed in CCD phase support and props up 241 bottom, described CCD phase support props up 241 bottom and is provided with camera lens 23, CCD camera 24 is fixed in the top of CCD camera bearing 241, and described X-axis is located on the fixed conveyor axle of body 1 rear side panel with 25 synchronously.Wherein Y-axis be with synchronously 21 and X-axis be with 25 all to be arranged on its corresponding servomotor synchronously.
Cooperate shown in Figure 3, the software setting structure of described work system 2 includes: initialization module 201, parameter is provided with module 202, motion-control module 203, bonding wire detection module 204 is formed, described initialization module 201 is used for initializers parameter and product test parameter, described parameter is provided with module 202 and is used to be provided with software parameter and product test parameter, described motion-control module 203 is used to control the XY motion platform, make product arrive appointed positions, thereby obtain rational product image by video camera, described bonding wire detection module 204 is used for product image is carried out image processing, and the result of image processing is automatically identified by the quality of automatic identification algorithm with product.The software that work system 2 of the present invention adopts is the CCD trace routine.
The flow process journey of its work system 2 is: as shown in Figure 4, initialization module 201 is started working, carry out the parameter setting if desired, that is provided with module 202 with regard to operational factor, if do not need to carry out the parameter setting, that just moves next step motion-control module 203, control XY motion platform 14, product test is carried out in 204 work of group's alignment detection module, obtain single product test result after, if product test is finished, that just finishes test, starts working otherwise just come back to motion-control module 203, carries out the test of next product.
The detection principle of work system 2 is: after system detects signal, servomotor accurately is sent to test article the position with camera lens 23 couplings automatically, and CCD camera 24 begins to gather image, by Daheng's image video card, pictorial data is transferred to calculator memory, carries out digital image processing.Test products is divided into 4 zones, upper left bottom right to carry out digital image processing and detects successively, at first the bonding wire of standard length is satisfied in search, and calculate the satisfy condition number and the standard testing product number of regions of bonding wire of each zone and compare, number conformance with standard when the inspection bonding wire, calculate the bonding wire start bit, interposition, the distance of end position and 3 positions of adjacent bonding wire, draw range deviation and standard testing product parameter compares one by one, obtain correct conclusion through a series of fault-tolerant processing, and mark the correct and wrong zone at display window.
Work of the present invention needs the control of computer when using, its computer running environment is:
Hardware environment: standard configuration, CPU: more than the Pentium 1.6Ghz, internal memory: 512MB, display mode: 16 of quality of colours, screen resolution 1024 * 768 pixels, the configuration that image video card 1.2 the present invention of DH-CG300 Daheng use:
CPU: more than the Pentium 1.8Ghz, internal memory: more than the 1024MB, display mode: 16 screen resolution 1024 * 768 pixels of quality of colour, DH-CG300 Daheng image video card;
Software environment:
Operating system: simplified form of Chinese Character Windows2000/2003/XP Windows,
Application software: Virtual C++6.0
The mainboard and the display card of image video card and computing machine are closely related, mainly are the transfer rates of DMA for the requirement of video card, the read-write speed of video memory.The main flow display card can normally use substantially in the market.
Below software installation and operation work of the present invention is described in detail: install software, basic operation is as follows:
A, enter the Windows system after, operation CCD detects installation procedure;
B, Setup Wizard are ready, initial interface can occur installing;
The default installation directory of c, system is " C: Program Files ", and the user can revise the path according to the actual conditions of oneself;
After d, definite will the installation, click the Next button continuously and continue to install, a whole set of program is installed waits a few minutes;
E, install to finish after the family eject and install acknowledgement window, click " finishing " button and confirm and close window.
Login system:
A, double-click application icon on the table and see Fig. 5;
Behind b, the start-up routine, the main surface chart that application program occurs is seen Fig. 6;
C, click and in the program master routine " entering system " printed words button to be arranged;
D, ejection login window (as Fig. 7) are selected right user name (noting need not to input password at the non-state that is provided with) at corresponding input frame, directly click " affirmation " button;
E, carry out the setting of the parameter of system, need the input password, click " affirmation " button, see Fig. 8;
F, login successfully after, system automatically resets.
Add type and revise password:
The type of a, interpolation deletion test article: click the button of going together and see Fig. 9 with the type combobox; Eject " revising the product type dialog box " and see Figure 10;
Behind the password that input is correct in Figure 10, input needs the type of interpolation in the type frame, and point " increase " button is finished the interpolation of test article type, otherwise click Cancel, or select existing type, point " deletion " button is finished the deletion of test products type, otherwise click Cancel;
B, modification password: click the button of going together and see Fig. 9, eject " modification password " dialog box and see Figure 11 with the password combobox; In Figure 11 behind the correct Old Password of input, the control oneself new password of definition of twice input user is clicked the modification that " affirmation " button is finished password, otherwise click Cancel.
Shutdown system:
Click " shutdown system " at software master interface but button will cut out software or by shortcut ALT+F4 shutdown system.
The detailed annotation of system master interface in the process of test, as follows: as to see Figure 12 figure:
The background area:
" up and down " 4 editor's input frames represent the outside apart from the coordinate of shape frame on screen respectively, are unit with the pixel, import different data, and outside frame can present different sizes, generally fixedly need not to change.
Pixel is demarcated:
Pixel is demarcated combo box, be to be used for when the 2nd location of system, unit of account, generally need not to demarcate apart from the number of pixel when not moving or regulating camera lens 23, when moving or regulate camera lens 23, must carry out the demarcation again of system's pixel: click " position 1 ", the waiting system transmission puts in place, clicks " position 2 " again, the waiting system transmission puts in place, clicks " pixel demarcation " button at last and gets final product.
Platform resets:
Click " platform resets " button, the pallet that the servomotor moving handle is put test products withdraws from platform, so that change test products at any time." demonstration sequence number " button is introduced in systematic parameter is set.
Artificial location
" artificial location " must at first click " artificial location " when being used for user's manual test product or systematic parameter being set, so that system carries out the location 2 times.When system surveys automatically, need not this step.The display frame meeting switches to round dot location picture, and as shown in figure 13, system will calculate its motion relative position automatically and be presented in " initial distance " frame, and deviation be carried out automatically the correction of system as parameter.
The demonstration of test result:
Test result (in left and right sides) behind the intact product of user test is presented at " left test result ", in the static frame of " right test result ".Show that " PASS " expression correspondence position product is normal, show that " FAIL " expression corresponding product is undesired.And corresponding one " single inspection " button of each test products, click, system moves to the detection position of this product automatically, present zone errors, green line band table tram, red line is represented errors present, does not also have green line if certain zone of test products has both had red line, represents that this zone lacks or more than the standard lines number.Need manually to detect the situation of single product, click corresponding " single inspection " button and promptly can be observed the corresponding situation of this product, as shown in figure 14.Attached 1
Parameter setting of the present invention:
Step is set:
The button that is provided with of clicking 5 correspondences under system is provided with state is provided with (test products of selecting a standard) to systematic parameter respectively:
A clicks " kinematic parameter is set " button, and ejection is provided with XY platform motion parameter dialog box (as shown in figure 15) product orientation (servomotor motion positions) is provided with.Transverse axis X, transverse axis Y represent servomotor transmission both direction respectively, detected product in left and right sides, the corresponding 6 groups of different positional parameters of 6 difference in every limit.6 groups of different positional parameters just servomotor respectively in 6 groups of different distance of the motion of XY direction, the user can set relevant parameter according to actual conditions, whenever establish one group of parameter and clicked the set parameter position of " Run " servomotor meeting transmission user, reached requirement if transmission parameter is set through observation, clicking " preserve and be provided with " preservation parameter withdraws from, as want to keep and go up subparameter, click " cancellation is provided with " and withdraw from; As shown in figure 16, attached 2
B clicks " bonding wire quantity is set " button, eject bonding wire quantity dialog box (as Figure 17) is set, the setting of bonding wire quantity is carried out in 4 zones (upper left bottom right) to test products, and bonding wire quantity should be set according to the actual number of test products, and preservation is withdrawed from or cancelled being provided with and withdraw from;
C clicks " edge, setting area " button, and test products is carried out 4 dividing region, and the user can click once in the appropriate edge zone with left mouse button, and system can eject " the external margin point is set " dialog box (as Figure 18) automatically; Click the title combobox, select mouse-click place direction (as Figure 19), and " preservations " or " cancellation " setting withdraws from, as shown in figure 20;
D clicks " be provided with bonding wire end point " button, and the sensing range of getting test products IC bonding wire is got bonding wire generally speaking and just reached pairing pad locations and get final product.It is the same with edge, setting area method to get last point methods, uses mouse-click equally, gets a little to get final product near the end point of corresponding bonding wire, and ejects " bonding wire end point is set " dialog box (as Figure 21), selects the quadrant and the bonding wire sequence number of set group respectively in combobox.Click " demonstration sequence number " button, will show the sequence number of each regional bonding wire, as shown in figure 22,
E clicks " wire length is set " button, display window at master routine can show a part of black and white 2 color pictures, several white lines are represented the bonding wire on the IC, wait for several seconds, ejecting " the bonding wire standard is set " dialog box (as Figure 23) " line length " and be with the standard testing product is standard, the length of the standard testing product bonding wire of preservation.Back to back " current " is the wire length of the present product I C that surveys." end apart from " is to be standard with the standard testing product, the range difference between the point of the adjacent IC bonding wire of the standard testing product of preservation end, back to back " current " hurdle range difference between to be that institute's product I C bonding wire of surveying is last now put." line length deviation " is the deviation that test products wire length and standardized product wire length are allowed by comparison." just apart from deviation ", " middle " apart from deviation, " end apart from deviation " is to be standard with the standard testing product, bonding wire start bit, interposition, terminal position and adjacent bonding wire start bit, interposition, the deviation that range deviation allowed between the some position, end." minimum spacing " is meant the minor increment at interval between the adjacent bonding wire.(with the pixel is unit, and 4 zones will be provided with 4 times) sees Figure 24.
Above embodiment is only for the usefulness that the present invention is described, but not the restriction to inventing, person skilled in the relevant technique under the situation that does not break away from the spirit and scope of the present invention, can also be made various conversion or variation.Therefore, all technical schemes that are equal to also should belong to category of the present invention, should be limited by each claim.
Claims (2)
1, a kind of paster bonding wire automatic detection system is characterized in that:
It is provided with and includes body and work system, and described engine body exterior is provided with LCD, start button, stop button, workbench and paster PCBA pallet, and paster PCBA pallet is located on the workbench, and workbench is provided with the platform safety cover;
Described internal body is provided with work system, described work system includes Y-axis, and band, light source, camera lens, CCD camera, CCD camera bearing, X-axis are with composition synchronously synchronously, described workbench is positioned at Y-axis and is provided with light source in the top of band synchronously, be fixed in the bottom that CCD phase support props up, the bottom that described CCD phase support props up is provided with camera lens, the CCD camera is fixed in the top of CCD camera bearing, described X-axis band synchronously is located on the fixed conveyor axle of body rear side panel, and Y-axis is with synchronously and the synchronous band of X-axis all is arranged on its corresponding servomotor;
The software setting structure of described work system includes: initialization module, parameter are provided with module, motion-control module, bonding wire detection module composition, and the working software that described work system adopts is the CCD trace routine.
2, paster bonding wire automatic detection system as claimed in claim 1, it is characterized in that: described initialization module is used for initializers parameter and product test parameter, described parameter is provided with module and is used to be provided with software parameter and product test parameter, described motion-control module is used to control the XY motion platform, make product arrive appointed positions, thereby obtain rational product image by video camera, described bonding wire detection module is used for product image is carried out image processing, and the result of image processing is automatically identified by the quality of automatic identification algorithm with product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100683084A CN101398462B (en) | 2008-07-04 | 2008-07-04 | Plaster bonding wire automatic detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100683084A CN101398462B (en) | 2008-07-04 | 2008-07-04 | Plaster bonding wire automatic detection system |
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| CN101398462A true CN101398462A (en) | 2009-04-01 |
| CN101398462B CN101398462B (en) | 2012-07-25 |
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| CN2008100683084A Expired - Fee Related CN101398462B (en) | 2008-07-04 | 2008-07-04 | Plaster bonding wire automatic detection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103307973A (en) * | 2012-03-16 | 2013-09-18 | 鸿富锦精密工业（深圳）有限公司 | Chip mounter detection device |
| CN104952376A (en) * | 2015-06-12 | 2015-09-30 | 信丰福昌发电子有限公司 | Process for improving extraneous plating short circuit of LED lamp panel caused by small dot pitch |
| CN107607538A (en) * | 2016-07-12 | 2018-01-19 | 苏州市凌臣采集计算机有限公司 | Acetes chinensis equipment and its detection method |
| CN114184982A (en) * | 2021-12-29 | 2022-03-15 | 成都卡诺普机器人技术股份有限公司 | Welding arc striking explosion detection method and system and welding method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6621566B1 (en) * | 2000-10-02 | 2003-09-16 | Teradyne, Inc. | Optical inspection system having integrated component learning |
| CN2542020Y (en) * | 2002-05-10 | 2003-03-26 | 芜湖正达电子科技有限公司 | Re-current welder |
| US7203355B2 (en) * | 2002-12-24 | 2007-04-10 | Orbotech Ltd. | Automatic optical inspection system and method |
| CN100447525C (en) * | 2006-09-20 | 2008-12-31 | 上海量具刃具厂 | Measuring method of image measuring instrument |
| CN201047756Y (en) * | 2007-04-29 | 2008-04-16 | 上海研润光机科技有限公司 | Image measuring apparatus |
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- 2008-07-04 CN CN2008100683084A patent/CN101398462B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307973A (en) * | 2012-03-16 | 2013-09-18 | 鸿富锦精密工业（深圳）有限公司 | Chip mounter detection device |
| CN104952376A (en) * | 2015-06-12 | 2015-09-30 | 信丰福昌发电子有限公司 | Process for improving extraneous plating short circuit of LED lamp panel caused by small dot pitch |
| CN104952376B (en) * | 2015-06-12 | 2017-07-28 | 信丰福昌发电子有限公司 | It is a kind of to improve the technique that dot oozes golden short circuit away from LED lamp panel |
| CN107607538A (en) * | 2016-07-12 | 2018-01-19 | 苏州市凌臣采集计算机有限公司 | Acetes chinensis equipment and its detection method |
| CN114184982A (en) * | 2021-12-29 | 2022-03-15 | 成都卡诺普机器人技术股份有限公司 | Welding arc striking explosion detection method and system and welding method |
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| CN101398462B (en) | 2012-07-25 |
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