CN109238141A - A kind of chip pin Systems for optical inspection - Google Patents
A kind of chip pin Systems for optical inspection Download PDFInfo
- Publication number
- CN109238141A CN109238141A CN201811106749.9A CN201811106749A CN109238141A CN 109238141 A CN109238141 A CN 109238141A CN 201811106749 A CN201811106749 A CN 201811106749A CN 109238141 A CN109238141 A CN 109238141A
- Authority
- CN
- China
- Prior art keywords
- chip
- optically focused
- sliding slot
- chip pin
- slide rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses a kind of chip pin Systems for optical inspection, including chip transmitter, slide rail, optically focused room, and imaging lens, the top of slide rail is arranged in the chip transmitter, sliding slot is equipped with along slide rail direction on slide rail, optically focused room is fixed on slide rail, sliding slot from optically focused room two sides pass through, the optically focused room two sides passed through by sliding slot are equipped with port, port is equipped with liftable barn door, scalable stopper is equipped with being located at the indoor sliding slot bottom of optically focused, chip slides along the chute to be blocked in above scalable stopper, in optically focused room, the one side of face sliding slot is equipped with imaging mouth, it is imaged outside mouth and is equipped with imaging lens, imaging lens pass through imaging mouth face chip and chip pin, several spotlights are equipped with around chip pin in optically focused chamber interior walls.It is detected in application, can carry out automation optical imagery to chip pin, is improved detection efficiency, and unique lighting system is arranged, is improved quality of optical imaging.
Description
Technical field
The present invention relates to field of optical detection, and in particular to a kind of chip pin Systems for optical inspection.
Background technique
Chip needs to detect its pin after packaging is accomplished, judge all pins whether marshalling, with determination
Whether chip is defective products.Existing packaged chip to carry out coplanarity inspection to relevant pins mainly by detection microscope
It surveys, to judge whether the chip pin of same row, same row are in same plane, whether the spacing between chip pin is qualified,
Its detection process low efficiency, time-consuming, and is affected by human factors larger, is easy to appear detection error.
Summary of the invention
The present invention is in view of the deficienciess of the prior art, provide a kind of chip pin Systems for optical inspection, in application, can
To carry out automation optical imagery detection to chip pin, improve detection efficiency, and unique lighting system is set, improves optics
Image quality.
The invention is realized by the following technical scheme:
A kind of chip pin Systems for optical inspection, including chip transmitter, slide rail, optically focused room, chip and imaging lens
The top of slide rail is arranged in head, the chip transmitter, is equipped with sliding slot along slide rail direction on slide rail, sliding
It is connected to inside slot and chip transmitter, optically focused room is fixed on slide rail, is located at the lower section of chip transmitter, by one section of cunning
Dynamic guide rail closing, sliding slot from optically focused room two sides pass through, the optically focused room two sides passed through by sliding slot are equipped with port, and port is located at sliding slot
Top, and liftable barn door is equipped on port, scalable stopper, chip are equipped with being located at the indoor sliding slot bottom of optically focused
Slide and be blocked in above scalable stopper along the chute, the chip pin on chip extends perpendicularly out outside sliding slot, optically focused room just
Imaging mouth is equipped with to the one side of sliding slot, mouth face chip and chip pin is imaged, is equipped with imaging lens, imaging lens outside imaging mouth
Head is connect with computer, and imaging lens are set on two sidewalls in optically focused room in pairs by imaging mouth face chip and chip pin
It is equipped with spotlight, the position of spotlight is higher than the top of chip pin, and the outside of spotlight is surrounded by arch optically focused shell, and arch is poly-
Bare hull is equipped with light beam cylinder and the second beam light cylinder, and light beam cylinder and the second beam light cylinder connect with inside arch optically focused shell
It is logical, the chip pin top of its place side of the exit portal face of light beam cylinder, second its opposite side of beam light cylinder exit portal face
The central axes of chip pin top, light beam cylinder and the second beam light cylinder respectively with its corresponding to chip pin central axes at
45 °~60 ° angles.
, in application, chip to be checked in chip transmitter is slided in a manner of outwardly along the chute by chip pin, quilt can be stretched for it
Contracting stopper is blocked in optically focused room, and the liftable barn door on port, which is fallen, closes sliding slot, and optically focused room is made to form one only
Profit retention is as the sealing chamber of mouth, and the indoor spotlight of optically focused passes through arch optically focused shell, light beam cylinder/second beam light cylinder optically focused is made
Direct projection is carried out to the pin top of chip two sides respectively with rear, the reflected light on chip pin is connect by imaging mouth by imaging lens
Receive, as a result, imaging lens can by imaging mouth to all chip pins carry out Image Acquisition, and due in optically focused room by outer
Light interference in portion's is less, and the reflected light of chip pin is stronger, so the image quality of imaging lens is higher, detection can be improved
Image transmitting to computer is carried out rapid image recognition detection after the completion by accuracy, imaging lens Image Acquisition, and detection finishes
Afterwards, liftable barn door rises, and scalable stopper retracts, and chip skids off optically focused room along the chute, is further processed, and core
And then next chip to be checked is skidded off in piece transmitter to optically focused room, is successively automatically detected in this way, saves manpower
The link of participation effectively improves the detection efficiency of chip pin, and by multiple it is demonstrated experimentally that when light beam cylinder and second
The central axes of beam light cylinder respectively with its corresponding to chip pin central axes it is at 45 °~60 ° of angles when, chip pin top is anti-
The final imaging quality highest of light is penetrated, imaging effect is best, can effectively improve the accuracy of detection.
Preferably, the appearance of the optically focused room, liftable barn door, scalable stopper and slide rail is coated with black
Color coating makes in optically focused room in addition to chip pin all darkly in application, light extra in optically focused room can effectively be absorbed
Color background, the reflected light from chip pin for as far as possible receiving imaging lens improve the detection accuracy of chip pin.
Preferably, piston graphite anti-friction coating is coated in the sliding slot, in application, chip and sliding slot can be effectively reduced
Friction, reduce the abrasion of chip.
Preferably, infrared transmitter and red is respectively equipped on the slide rail between chip transmitter and optically focused room
Outer receiver, infrared transmitter and infrared remote receiver are arranged across sliding slot face, in application, chip, which slips over, can stop infrared connect
It receives device to receive the signal of infrared transmitter, has determined that chip slips over this, can be used for counting the chip slipped over,
Simultaneously when infrared transmitter and infrared remote receiver, which are determined with chip, to be slipped over, scalable stopper will be from the stretching pair of sliding slot bottom
Chip, which is formed, to be stopped.
Preferably, it is equipped with selection in movable guide rail and intercepts block to movable guide rail is connected in the bottom end of slide rail, it is living
The side of dynamic formula guide rail is equipped with pushing meanss, is connected between movable guide rail and pushing meanss by catch bar, is led movable
The back side of rail is equipped with cross track, is respectively equipped with qualified chip collector in the bottom end of movable guide rail and unqualified chip is collected
Device, by the promotion of catch bar, movable guide rail can be respectively moved to qualified chip collector and unqualified on cross track
Right above chip collector, in application, the chip after detection slides on movable guide rail, select to intercept if its detection is qualified
Block not intercepts, and chip directly slides into qualified chip collector, if its detection is unqualified, interception block is selected to block chip
It cuts, movable guide rail moves to above unqualified chip collector, and selection intercepts block and decontrols, and chip slides into unqualified chip and collects
Device, then movable guide rail is kept in the center, and can effectively improve unqualified chip in this way sifts out efficiency.
Preferably, receiving element, receiving element and work are equipped on the qualified chip collector and unqualified chip collector
Dynamic formula guide rail forms docking, convenient to be collected to chip.
Preferably, the pushing meanss are air pressure pushing meanss, easy to use, fast response time.
Preferably, it is coated with reflecting coating on the inner wall of the arch optically focused shell, light beam cylinder and the second beam light cylinder,
In application, the uptake and dispersion effect for the light that material issues spotlight can be reduced, effectively enhance the light intensity of the light projected,
Promote the optical imaging effect of chip pin.
Preferably, the imaging lens are CCD camera lens, and high resolution is formed by image and is convenient for chip pin
Coplanarity detection, improve the accuracy of detection.
Preferably, the height of the port setting is higher than the height of chip pin when chip is slipped over out of sliding slot, can make
Chip after detection is smoothly skidded off out of optically focused room.
The present invention has the advantage that and the utility model has the advantages that
1, a kind of chip pin Systems for optical inspection of the present invention can carry out automation optical imagery inspection to chip pin
It surveys, saves the link of manpower participation, improve detection efficiency.
2, unique lighting system is arranged in a kind of chip pin Systems for optical inspection of the present invention, improves quality of optical imaging,
Improve detection accuracy.
3, a kind of chip pin Systems for optical inspection of the present invention, can will test underproof chip automatic screening and come out,
It is collected, in case subsequent processing.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the top view of optically focused room of the invention and imaging lens part；
Fig. 3 is the cross-sectional view of optically focused room of the invention and imaging lens part；
Fig. 4 is the structural schematic diagram of arch optically focused shell parts of the invention；
Fig. 5 is the structural schematic diagram of movable rail sections of the invention；
Fig. 6 is chip pin imaging schematic diagram of the invention.
Label and corresponding parts title in attached drawing:
1- chip transmitter, 2- slide rail, 3- sliding slot, 4- optically focused room, 5- infrared transmitter, 6- infrared remote receiver, 7-
Mouth is imaged in scalable stopper, 8-, and 9- imaging lens, 10- spotlight, 11- chip, 12- chip pin, 13- port, 14- can
Barn door, the movable guide rail of 15- are gone up and down, 16- selection intercepts block, 17- cross track, 18- pushing meanss, 19- catch bar, 20-
Receiving element, 21- qualified chip collector, the unqualified chip collector of 22-, 23- arch optically focused shell, 24- light beam cylinder, 25-
Second beam light cylinder.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
As shown in Figs 1-4, a kind of chip pin Systems for optical inspection, including chip transmitter 1, slide rail 2, optically focused room
4, the top of slide rail 2 is arranged in chip 11 and imaging lens 9, the chip transmitter 1, along cunning on slide rail 2
Dynamic 2 direction of guide rail is equipped with sliding slot 3, is connected to inside sliding slot 3 and chip transmitter 1, optically focused room 4 is fixed on slide rail 2, position
In the lower section of chip transmitter 1, one section of slide rail 2 is closed, sliding slot 3 from 4 two sides of optically focused room pass through, passed through by sliding slot 3
4 two sides of optically focused room be equipped with port 13, port 13 is located at the top of sliding slot 3, and equipped with liftable barn door 14 on port 13,
3 bottom of sliding slot in optically focused room 4 is equipped with scalable stopper 7, and chip 11 3 slides along the chute and is blocked in scalable blocking
Above block 7, the chip pin 12 on chip 11 is extended perpendicularly out outside sliding slot 3, and in optically focused room, the one side of 4 face sliding slot 3 is equipped with imaging
8 face chip 11 of mouth and chip pin 12 is imaged in mouth 8, is imaged outside mouth 8 and is equipped with imaging lens 9, imaging lens 9 and computer
Connection, imaging lens 9 have been arranged in pairs on two sidewalls in optically focused room 4 by imaging 8 face chip 11 of mouth and chip pin 12
Spotlight 10, the position of spotlight 10 are higher than the top of chip pin 12, and the outside of spotlight 10 is surrounded by arch optically focused shell 23,
Arch optically focused shell 23 is equipped with light beam cylinder 24 and the second beam light cylinder 25, light beam cylinder 24 and the second beam light cylinder 25 with arch
It is connected to inside shape optically focused shell 23,12 top of chip pin of its place side of the exit portal face of light beam cylinder 24, the second beam light
12 top of chip pin of 25 its opposite side of exit portal face of cylinder, the central axes of light beam cylinder 24 and the second beam light cylinder 25 respectively with
The central axes of chip pin 12 corresponding to it are at 45 °~60 ° of angles.
Embodiment 2
As shown in figure 5, being equipped with selection in movable guide rail 15 to movable guide rail 15 is connected in the bottom end of slide rail 2
Block 16 is intercepted, the side of movable guide rail 15 is equipped with pushing meanss 18, by pushing away between movable guide rail 15 and pushing meanss 18
Lever 19 connects, and is equipped with cross track 17 at the back side of movable guide rail 15, is respectively equipped with conjunction in the bottom end of movable guide rail 15
Lattice chip collector 21 and unqualified chip collector 22, by the promotion of catch bar 19, movable guide rail 15 can be in transverse rails
It is respectively moved on road 17 right above qualified chip collector 21 and unqualified chip collector 22,21 He of qualified chip collector
Receiving element 20 is equipped on unqualified chip collector 22, receiving element 20 is docked with the formation of movable guide rail 15.
Embodiment 3
As shown in fig. 6, being presented in a manner of luminous point by 12 image of chip pin collected of imaging lens 9, pass through foundation
Each light spot position of coordinate pair is analyzed, determine same row, same row luminous point whether on the same line, and measure each chip
The coplanarity and pin spacing detection of chip pin 12 can be thus rapidly completed in spacing between pin 2.
Embodiment 4
When carrying out the detection of chip pin 12 using the detection device, device is placed in the weaker environment of extraneous light as far as possible
In, to reduce the external disturbing rays of imaging lens 9 at work, the imaging definition of chip pin 12 is improved, and then improve
Detect accuracy；Slide rail 2 is arranged to horizontal by certain angle, so that chip 11 can lean on certainly in sliding slot 3
Body gravity slides, and may dispense with power transmission link in this way, saves the energy.
Embodiment 5
The imaging mouth 8 should not be too large, only need can make all chip pins 12 by imaging mouth 8 in imaging lens 9 at
As the distance of 9 range Imaging mouth 8 of imaging lens is arranged in the range of 5-20cm, can both prevent because of imaging lens in this way
First 9 from imaging mouth 8 compared with close and caused by 10 light of spotlight too strong influence image quality the problem of, and will not be because of imaging lens
9 lead to chip pin 12 farther out the imaging is not clear from imaging mouth 8, and light beam cylinder 24 and the second beam light cylinder 25 should not be reached into
As mouth 8 drop shadow spread in, in order to avoid influence chip pin 12 imaging effect.
Embodiment 6
Chip transmitter 1, infrared transmitter 5, infrared remote receiver 6, scalable stopper 7, imaging lens 9, liftable hide
Tabula rasa 14, selection intercept block 16 and pushing meanss 18 are attached with computer, and unified process control is carried out by computer
System, efficiently to complete the detection of chip pin 12.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of chip pin Systems for optical inspection, which is characterized in that including chip transmitter (1), slide rail (2), optically focused
Room (4), chip (11) and imaging lens (9), the chip transmitter (1) are arranged on the top of slide rail (2), lead in sliding
Sliding slot (3) are equipped with along slide rail (2) direction on rail (2), are connected to inside sliding slot (3) and chip transmitter (1), optically focused room
(4) it is fixed on slide rail (2), is located at the lower section of chip transmitter (1), one section of slide rail (2) is closed, sliding slot
(3) from optically focused room (4) two sides pass through, optically focused room (4) two sides passed through by sliding slot (3) be equipped with port (13), port (13) position
Liftable barn door (14) are equipped with above sliding slot (3), and on port (13), at sliding slot (3) bottom being located in optically focused room (4)
Portion is equipped with scalable stopper (7), and chip (11) is slided and is blocked in above scalable stopper (7) along the chute (3), chip
(11) chip pin (12) on extends perpendicularly out sliding slot (3) outside, is equipped with imaging mouth in the one side of optically focused room (4) face sliding slot (3)
(8), mouth (8) face chip (11) and chip pin (12) is imaged, is equipped with imaging lens (9) outside imaging mouth (8), imaging lens
(9) it is connect with computer, imaging lens (9) are by imaging mouth (8) face chip (11) and chip pin (12), in optically focused room
(4) it has been arranged in pairs on interior two sidewalls spotlight (10), the position of spotlight (10) is higher than the top of chip pin (12), optically focused
The outside of lamp (10) is surrounded by arch optically focused shell (23), and arch optically focused shell (23) is equipped with light beam cylinder (24) and the second beam light
Cylinder (25), light beam cylinder (24) and the second beam light cylinder (25) are connected to arch optically focused shell (23) inside, light beam cylinder
(24) chip pin (12) top of its place side of exit portal face, the core of second beam light cylinder (25) its opposite side of exit portal face
The central axes of piece pin (12) top, light beam cylinder (24) and the second beam light cylinder (25) respectively with its corresponding to chip pin
(12) central axes are at 45 °~60 ° of angles.
2. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that the optically focused room (4), can
The appearance of lifting barn door (14), scalable stopper (7) and slide rail (2) is coated with black coating.
3. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that applied in the sliding slot (3)
There is piston graphite anti-friction coating.
4. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that be located at chip transmitter
(1) infrared transmitter (5) and infrared remote receiver (6), infrared hair are respectively equipped on the slide rail (2) between optically focused room (4)
Emitter (5) and infrared remote receiver (6) are arranged across sliding slot (3) face.
5. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that in slide rail (2)
Bottom end is equipped with selection and intercepts block (16) to being connected to movable guide rail (15) in movable guide rail (15), movable guide rail (15)
Side is equipped with pushing meanss (18), is connect between movable guide rail (15) and pushing meanss (18) by catch bar (19), in work
The back side of dynamic formula guide rail (15) is equipped with cross track (17), is respectively equipped with qualified chip in the bottom end of movable guide rail (15) and collects
Device (21) and unqualified chip collector (22), by the promotion of catch bar (19), movable guide rail (15) can be in cross track
(17) it is respectively moved on right above qualified chip collector (21) and unqualified chip collector (22).
6. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that the qualified chip is collected
It is equipped with receiving element (20) on device (21) and unqualified chip collector (22), receiving element (20) and movable guide rail (15) are formed
Docking.
7. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that the pushing meanss (18)
For air pressure pushing meanss.
8. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that the arch optically focused shell
(23), reflecting coating is coated on the inner wall of light beam cylinder (24) and the second beam light cylinder (25).
9. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that the imaging lens (9)
For CCD camera lens.
10. a kind of chip pin Systems for optical inspection according to claim 1, which is characterized in that the port (13) sets
The height set is higher than the height of chip pin (12) when chip (11) are slipped over out of sliding slot (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106749.9A CN109238141B (en) | 2018-09-21 | 2018-09-21 | Chip pin optical detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106749.9A CN109238141B (en) | 2018-09-21 | 2018-09-21 | Chip pin optical detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109238141A true CN109238141A (en) | 2019-01-18 |
| CN109238141B CN109238141B (en) | 2020-10-09 |
Family
ID=65056579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811106749.9A Active CN109238141B (en) | 2018-09-21 | 2018-09-21 | Chip pin optical detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109238141B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849281A (en) * | 2019-11-13 | 2020-02-28 | 江苏鲁汶仪器有限公司 | Aperture gauge capable of realizing automatic closed-loop control of optical system and measurement method |
| US20220274221A1 (en) * | 2019-10-25 | 2022-09-01 | Vitaly Tsukanov | Systems for Blade Sharpening and Contactless Blade Sharpness Detection |
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| JPH10153413A (en) * | 1996-11-21 | 1998-06-09 | M C Electron Kk | Appearance and dimension inspection device for ic lead |
| JPH10160430A (en) * | 1996-11-29 | 1998-06-19 | Precision:Kk | Device for inspecting container for appearance on conveyor line |
| CN1929087A (en) * | 2005-09-08 | 2007-03-14 | 东京威尔斯股份有限公司 | Appearance detection device |
| CN101382501A (en) * | 2007-09-05 | 2009-03-11 | Aju高技术公司 | Automatic optical detection device and method |
| CN103322915A (en) * | 2013-06-27 | 2013-09-25 | 青岛歌尔声学科技有限公司 | Tester measuring chip pin number and pin separation space and measuring method thereof |
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2018
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| JPH10153413A (en) * | 1996-11-21 | 1998-06-09 | M C Electron Kk | Appearance and dimension inspection device for ic lead |
| JPH10160430A (en) * | 1996-11-29 | 1998-06-19 | Precision:Kk | Device for inspecting container for appearance on conveyor line |
| CN1929087A (en) * | 2005-09-08 | 2007-03-14 | 东京威尔斯股份有限公司 | Appearance detection device |
| CN101382501A (en) * | 2007-09-05 | 2009-03-11 | Aju高技术公司 | Automatic optical detection device and method |
| CN103322915A (en) * | 2013-06-27 | 2013-09-25 | 青岛歌尔声学科技有限公司 | Tester measuring chip pin number and pin separation space and measuring method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220274221A1 (en) * | 2019-10-25 | 2022-09-01 | Vitaly Tsukanov | Systems for Blade Sharpening and Contactless Blade Sharpness Detection |
| US11904428B2 (en) * | 2019-10-25 | 2024-02-20 | Vitaly Tsukanov | Systems for blade sharpening and contactless blade sharpness detection |
| CN110849281A (en) * | 2019-11-13 | 2020-02-28 | 江苏鲁汶仪器有限公司 | Aperture gauge capable of realizing automatic closed-loop control of optical system and measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109238141B (en) | 2020-10-09 |
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