Chip automatic detection device

Abstract

The application relates to a chip automatic detection device for detecting chips and welding wires fixed on a frame, which comprises a pushing feeding mechanism, a bearing part and a detection part; the pushing feeding mechanism is configured to clamp and carry the frame to be detected stored in a magazine to the bearing part, and push the qualified frame after detection back to the magazine; the bearing part is configured to bear and fix the frame to be detected; and the detection part is configured to detect the chips and welding wires on the frame borne on the bearing part. The frame to be detected and the qualified frame after detection are conveyed by the pushing feeding mechanism, so that the feeding and discharging efficiency is improved; and the chips and welding wires on the frame borne on the bearing part are comprehensively detected by the detection part, so that the detection efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of semiconductor chip packaging technology, specifically to an automatic chip testing device. Background Technology

[0002] In the field of semiconductor chip packaging technology, chips are attached to a frame, a process known as die bonding or die attaching. Connecting the nodes on the chip to the nodes on the frame using wire bonding is a process known as bonding. The bonded frame and chip need to be inspected for defects. Common inspection items include: chip mounting abnormalities (misaligned, damaged, missing, incorrectly attached, etc.) and wire bonding abnormalities (misaligned, extra wires, missing wires, incorrect wires, broken wires, etc.).

[0003] Traditional inspection methods involve manual loading and unloading of chips, and only perform single-sided visual inspection, primarily focusing on the outer surface of the chip. This method has limitations; it cannot inspect the soldering quality between the bonding wires and the chip, resulting in low inspection efficiency. Summary of the Invention

[0004] This invention addresses the problems of incomplete detection and low detection efficiency in existing chip detection methods by providing an automated chip detection device that offers comprehensive detection and high efficiency.

[0005] The technical solution of the present invention is as follows: An automatic chip testing device for testing chips and bonding wires fixed on a frame, the automatic chip testing device comprising a feeding mechanism, a carrier part, and a testing part; wherein:

[0006] The feeding mechanism is configured to clamp and transport the frames to be inspected stored in the material box to the carrier, and to push the qualified frames back to the material box after inspection.

[0007] The load-bearing component is configured to support and secure the frame to be tested;

[0008] The inspection unit is configured to inspect the chips and bonding wires mounted on the frame on the carrier unit.

[0009] The feeding mechanism transports frames to be tested and those that have passed the test, improving loading and unloading efficiency; the testing department performs comprehensive testing on the chips and bonding wires on the frames supported by the carrier, improving testing efficiency.

[0010] Optionally, the feeding mechanism includes a clamping component and a traversing component, the clamping component being mounted on the traversing component; the clamping component is configured to clamp or push the frame, and the traversing component is configured to drive the frame to move between the material box and the carrier.

[0011] By clamping or pushing the frame with the clamping component, and moving the frame between the material box and the support part with the lateral component, the automatic loading and unloading of the frame can be realized, thereby improving the loading and unloading efficiency.

[0012] Optionally, the clamping assembly includes a gripper, a gripper cylinder, and a pressure sensing component. The gripper is mounted on the gripper cylinder, and the pressure sensing component is mounted on the mounting plate of the gripper cylinder. The gripper cylinder drives the gripper to open and close, and the pressure sensing component is used to detect whether there is jamming when the gripper pushes the frame back into the material box.

[0013] The traverse assembly includes a drive motor, a synchronous belt mechanism, and a slide rail assembly. The gripper cylinder is mounted on the synchronous belt mechanism and slidably engages with the slide rail assembly. The drive motor drives the synchronous belt mechanism to rotate and causes the gripping assembly to move along the slide rail assembly.

[0014] The clamping assembly uses grippers and gripper cylinders, while the transverse assembly uses a drive motor and synchronous belt mechanism. The structure is simple, the cost is low, and it is easy to install and debug.

[0015] Optionally, the load-bearing component includes a testing platform, a first translation component, a second translation component, and a clamping component;

[0016] The clamping assembly is mounted on the testing platform and configured to clamp the frame to be tested on the testing platform.

[0017] The detection platform is mounted on the first translation component, and the first translation component is mounted on the second translation component;

[0018] The first translation component is configured to move the detection platform along a first direction, and the second translation component is configured to move the first translation component along a second direction perpendicular to the first direction by a first distance, the first distance being the spacing between two adjacent rows of chips on the frame to be detected on the detection platform.

[0019] By cooperating with the first and second translation components, the position of the inspection platform on the horizontal plane can be adjusted arbitrarily, making it easy for the inspection department to clearly inspect the frame to be inspected; the clamping component can firmly fix the frame to be inspected on the inspection platform.

[0020] Optionally, there are two support units, and the two support units move a second distance in a second direction under the drive of their respective second translation components.

[0021] By setting up two support units, material can be fed in a cyclic manner, improving detection efficiency; the two support units move a second distance in a second direction under the drive of their respective second translation components, which can avoid collisions between the two detection platforms when they move in the first direction.

[0022] Optionally, the inspection unit includes five cameras, four of which are configured to inspect the bonding wires connecting the frame and the chip on the carrier, and one camera to inspect the front of the chip within the frame on the carrier.

[0023] The inspection department uses five cameras to perform comprehensive inspection of the frame to be inspected from five directions, avoiding missed inspections.

[0024] Optionally, the detection unit further includes at least one camera adjustment component for adjusting the camera, the camera adjustment component being configured to adjust the angle and / or position of the camera mounted on the camera adjustment component;

[0025] The camera adjustment assembly includes a pitch motor, a forward / backward motor, and a lift motor. The camera is mounted on the pitch motor, which is mounted on the forward / backward motor, which is mounted on the lift motor. The lift motor is used to adjust the vertical position of the camera, the forward / backward motor is used to adjust the horizontal position of the camera, and the pitch motor is used to adjust the pitch angle of the camera.

[0026] The camera adjustment component allows you to adjust the camera's position, ensuring accurate focus, clear photos, and appropriately sized images.

[0027] Optionally, the automatic chip testing device further includes a loading and unloading section, which includes a loading section and an unloading section installed sequentially from bottom to top along the vertical direction. The loading section is configured to carry and transport a box loaded with a frame to be tested, and the unloading section is configured to carry and transport a box loaded with a frame that has passed the test.

[0028] The feeding section includes a feeding plate, a pusher block and a pusher block cylinder. The pusher block cylinder is installed on the feeding plate, and the pusher block is installed on the pusher block cylinder and located above the feeding plate. The pusher block cylinder drives the pusher block to move and push the material box on the feeding plate to the material box feeding position.

[0029] The unloading section includes a motor and a belt. The motor drives the belt to rotate and receive the material box containing the inspected and qualified frame from the material box unloading position.

[0030] By integrating the loading and unloading sections into a single loading and unloading section, the vertical space can be fully utilized, reducing the overall size of the device. Furthermore, by configuring the loading and unloading sections, the loading and unloading paths can be shortened, thereby improving loading and unloading efficiency.

[0031] Optionally, the loading and unloading section also includes a width adjustment mechanism, which is used to adjust the distance between the two side plates of the loading and unloading section to accommodate loading and unloading of boxes of different sizes.

[0032] The spacing between the side plates can be adjusted by the width adjustment mechanism, so that the loading and unloading sections can accommodate material boxes of different sizes, thereby improving the applicability of the detection device.

[0033] Optionally, the loading and unloading section also includes a pushing mechanism and at least one conveying mechanism. The conveying mechanism is configured to move the material box at the material box loading position from the loading section to the frame loading and unloading position. The pushing mechanism is configured to push the frame to be tested out of the material box at the frame loading and unloading position.

[0034] The handling mechanism is also configured to move the hopper containing the inspected frames located at the frame loading and unloading positions to the unloading section.

[0035] The material box in the loading section is moved to the loading position by the conveying mechanism, or the material box in the loading position is moved back to the unloading section, so as to facilitate the connection with the pushing mechanism; the frame in the material box is pushed out by the pushing mechanism, so that the pushing mechanism can clamp the frame and improve work efficiency.

[0036] Optionally, the conveying mechanism includes a box translating part, a box lifting part, and a box clamping part. The box clamping part is mounted on the box lifting part, and the box lifting part is mounted on the box translating part. The box clamping part is used to clamp the box, the box lifting part is used to drive the box to lift, and the box translating part is used to drive the box to translate.

[0037] The material box is held by the material box clamping part, and the position of the material box in space is adjusted by the material box translation part and the material box lifting part. The structure is simple, the clamping is reliable, and the loading and unloading efficiency can be improved.

[0038] Optionally, the material box clamping part includes a mounting frame, a material box bracket, a material box limiting block, a clamping block, and a clamping block driving component; the material box limiting block is installed in the middle of the side of the mounting frame facing the material box, the material box bracket is installed in the lower part of the side of the mounting frame facing the material box, and the clamping block is installed on the clamping block driving component and located above the material box bracket; the clamping block driving component drives the clamping block to move relative to the material box bracket, thereby clamping or releasing the material box.

[0039] The bottom of the material box is supported by the material box bracket, the top of the material box is clamped by the clamping block driven by the clamping block drive, and the side of the material box is held by the material box limiting block. The material box can be firmly clamped without shaking.

[0040] Optionally, there are two conveying mechanisms, which are arranged side by side and configured to operate in a cycle. While the first conveying mechanism is moving the material box from the frame loading / unloading position to the unloading position, the second conveying mechanism is moving the material box from the loading position to the frame loading / unloading position.

[0041] By using two conveying mechanisms in a cyclical operation, the loading and unloading process can be accelerated, and the loading and unloading efficiency can be improved.

[0042] Optionally, the automatic chip inspection device also includes an NG unloading section, which is configured to push frames that fail inspection to an NG hopper.

[0043] The NG unloading section includes an NG pushing component and an NG conveying mechanism. The NG pushing component pushes the non-conforming frames into the NG material box.

[0044] The NG handling mechanism includes an NG box clamping part and an NG box lifting part. The NG box clamping part is configured to clamp the NG box, and the NG box lifting part drives the NG box clamping part to move up and down.

[0045] By configuring the NG unloading section, non-conforming frames can be collected into the NG material box for convenient centralized processing later. Attached Figure Description

[0046] Figure 1 This is a three-dimensional structural diagram of an optional embodiment of the present invention.

[0047] Figure 2 This is a three-dimensional structural diagram of the frame used for detection in this invention.

[0048] Figure 3 For storage Figure 2 A three-dimensional structural diagram of the material box within the frame shown.

[0049] Figure 4 This is a three-dimensional structural diagram of the loading and unloading section in this invention.

[0050] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure from another perspective.

[0051] Figure 6 for Figure 4 The main view.

[0052] Figure 7 This is a three-dimensional structural diagram of one embodiment of the conveying mechanism in this invention.

[0053] Figure 8 for Figure 7 The left view.

[0054] Figure 9 for Figure 7 A three-dimensional structural diagram of the material box clamping part in the conveying mechanism shown.

[0055] Figure 10 for Figure 9 The left view.

[0056] Figure 11 This is a three-dimensional structural diagram of another embodiment of the conveying mechanism in this invention.

[0057] Figure 12 for Figure 11 The left view.

[0058] Figure 13This is a three-dimensional structural diagram of the feeding mechanism in this invention.

[0059] Figure 14 for Figure 13 The main view.

[0060] Figure 15 This is a three-dimensional structural diagram of the support portion in this invention.

[0061] Figure 16 This is a three-dimensional structural diagram of the detection unit in this invention.

[0062] Figure 17 for Figure 16 A three-dimensional structural diagram of the camera adjustment assembly in the detection unit shown.

[0063] Figure 18 for Figure 17 The main view.

[0064] Figure 19 This is a three-dimensional structural diagram of the NG pusher assembly in this invention.

[0065] Figure 20 for Figure 19 The main view.

[0066] Figures 1 to 20 Including:

[0067] Automatic chip testing device 1;

[0068] 10. Loading / unloading section, 11. Loading section, 111. Loading plate, 112. Push block, 113. Push block cylinder, 12. Unloading section, 121. Motor, 122. Belt, 122. Width adjustment mechanism, 13. Pushing mechanism, 14. Handling mechanism, 15. Material box translation section, 151. Material box lifting section, 152. Material box clamping section, 153. Material box bracket, 161. Material box limiting block, 162. Clamping block, 163. Clamping block drive component, 164. Mounting bracket, 165.

[0069] The feeding mechanism 20, clamping assembly 21, gripper 211, gripper cylinder 212, pressure sensing assembly 213, connecting block 214, transverse movement assembly 22, drive motor 221, synchronous belt mechanism 222, and slide rail assembly 223 are included.

[0070] The load-bearing unit 30, the detection platform 31, the first translation component 32, the second translation component 33, and the clamping component 34;

[0071] Detection unit 40, camera 41, camera adjustment assembly 42, pitch adjustment motor 421, forward and backward motor 422, lifting motor 423;

[0072] NG feeding part 50, NG pushing assembly 51, pushing block 511, pressure sensing assembly 512, connecting block 513, synchronous belt mechanism 514, motor 515, slide rail assembly 516, NG conveying mechanism 52, NG material box clamping part 521, NG material box lifting part 522;

[0073] Frame 100, material box 200, material trough 201, NG material box 300. Detailed Implementation

[0074] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0075] like Figure 1 As shown, the present invention is an automatic chip detection device 1, used to detect chips and bonding wires fixed on a frame 100.

[0076] Figure 2 The diagram shows a perspective view of frame 100. Chips and bonding wires are mounted on frame 100: the chips are attached to frame 100, and the nodes on the chips are connected to the nodes on frame 100 via bonding wires. This invention is specifically used to detect whether chip mounting and bonding wire connection are abnormal.

[0077] The frame 100 is stored in the material box 200. Figure 3 The image shown is a perspective view of the material box 200. The material box 200 is layered, and multiple horizontal material slots 201 arranged vertically are arranged on the two opposite side plates of the material box 200. The two sides of the bonded frame 100 are respectively inserted into the material slots 201 on the same horizontal plane.

[0078] See also Figure 1 The automatic chip testing device 1 mainly includes a feeding mechanism 20, a carrier part 30, and a testing part 40. Optionally, the automatic chip testing device 1 also includes a loading / unloading part 10 and an NG unloading part 50.

[0079] Wherein: the feeding mechanism 20 is configured to clamp and transport the frame 100 to be tested stored in the material box 200 to the bearing part 30, and to push the qualified frame 100 after testing back to the material box 200.

[0080] The load-bearing part 30 is configured to support and fix the frame 100 to be tested;

[0081] The inspection unit 40 is configured to inspect the chip and bonding wires on the frame 100 supported on the support unit 30.

[0082] The present invention improves loading and unloading efficiency by using a feeding mechanism 20 to transport the frames 100 to be tested and those that have passed the test; and improves testing efficiency by using a testing unit 40 to perform comprehensive testing on the chips and bonding wires on the frames 100 supported on the support unit 30.

[0083] To further improve the loading and unloading efficiency of the frame 100, a loading and unloading section 10 can be installed in front of the pushing mechanism 20; to centrally process the unqualified frames 100 after inspection, an NG unloading section 50 can be installed after the inspection section 40.

[0084] The components of the automatic chip detection device 1 of the present invention will be described in detail below.

[0085] like Figures 4-6 As shown, in one optional implementation, the automatic chip testing device 1 may include a loading / unloading section 10. The loading / unloading section 10 includes a loading section 11 and a unloading section 12 installed sequentially from bottom to top along a vertical direction, with loading at the bottom and unloading at the top. The loading section 11 is configured to carry and transport a material box 200 containing a frame 100 to be tested, and the unloading section 12 is configured to carry and transport a material box 200 containing a frame 100 that has passed the test.

[0086] The feeding section 11 includes a feeding plate 111, a pusher block 112, and a pusher block cylinder 113. The pusher block cylinder 113 is mounted on the feeding plate 111, and the pusher block 112 is mounted on the pusher block cylinder 113 and located above the feeding plate 111. Specifically, the feeding plate 111 is suspended above the bottom plate of the feeding section 10 by a bracket. The pusher block cylinder 113 is installed between the feeding plate 111 and the bottom plate. The pusher block 112 extends downward through the feeding plate 111 and is fixed to the movable part of the pusher block cylinder 113. The feeding plate 111 has a slot along the moving direction of the pusher block 112 for the pusher block 112 to pass through. The pusher block cylinder 113 drives the pusher block 112 to move, pushing the material box 200 on the feeding plate 111 to the material box feeding position.

[0087] The unloading section 12 includes a motor 121 and a belt 122, which carries the material box 200. The motor 121 drives the belt 122 to rotate, receiving the material box 200 loaded with the inspected and qualified frame 100 from the material box unloading position.

[0088] By integrating the loading section 11 and the unloading section 12 into a single loading and unloading section 10, the space in the vertical direction can be fully utilized, reducing the overall size of the device; by configuring the loading and unloading section 10, the loading and unloading path can be shortened, and the loading and unloading efficiency can be improved.

[0089] In one embodiment, optionally, the loading / unloading section 10 further includes a width adjustment mechanism 13, which is used to adjust the distance between the two side plates of the loading / unloading section 10 to accommodate loading / unloading of material boxes 200 of different sizes. Figure 6 As shown, the left side plate is mounted on the shaft, and its left and right positions can be adjusted and locked by a locking assembly.

[0090] The side plate spacing can be adjusted by the width adjustment mechanism 13, so that the loading and unloading section 10 can adapt to material boxes 200 of different sizes, thereby improving the applicability of the detection device.

[0091] like Figure 1 As shown, optionally, the loading and unloading section 10 also includes a pushing mechanism 14 and at least one conveying mechanism 15. The conveying mechanism 15 is configured to move the material box 200 at the material box loading position from the loading section 11 to the frame loading and unloading position. The pushing mechanism 14 is configured to push the frame 100 to be tested out of the material box 200 at the frame loading and unloading position. The conveying mechanism 15 is also configured to move the material box 200 containing the tested frame 100 at the frame loading and unloading position to the unloading section 12.

[0092] The material box 200 of the loading section 11 is moved to the loading position by the conveying mechanism 15, or the material box 200 at the loading position is moved back to the unloading section 12, so as to facilitate docking with the pushing mechanism 20; the frame 100 inside the material box 200 is pushed out by the pushing mechanism 14, so as to facilitate the pushing mechanism 20 to clamp the frame 100 and improve work efficiency.

[0093] The feeding mechanism 14 can adopt any structure in the prior art, such as a cylinder, hydraulic cylinder or electric push rod, etc.

[0094] like Figure 7 , Figure 8 As shown, optionally, the conveying mechanism 15 includes a box translating part 151, a box lifting part 152, and a box clamping part 153. The box clamping part 153 is mounted on the box lifting part 152, and the box lifting part 152 is mounted on the box translating part 151. The box clamping part 153 is used to clamp the box 200 and, driven by the box lifting part 152 and the box translating part 151, transports the box 200 to the loading position. The box lifting part 152 is used to drive the box 200 to lift, and the box translating part 151 is used to drive the box 200 to translate. The box lifting part 152 generally adopts a structure of motor combined with lead screw, and the box translating part 151 often adopts a structure of motor combined with slide rail.

[0095] The material box 200 is clamped by the material box clamping part 153, and the position of the material box 200 in space is adjusted by the material box translation part 151 and the material box lifting part 152. The structure is simple, the clamping is reliable, and the loading and unloading efficiency can be improved.

[0096] like Figure 9 , Figure 10 As shown, optionally, the cassette clamping part 153 includes a mounting frame 165, a cassette bracket 161, a cassette limiting block 162, a clamping block 163, and a clamping block driving member 164.

[0097] Mounting bracket 165 is used to mount the material box clamping part 153 onto the movable part of the material box lifting part 152. Material box limiting block 162 is mounted in the middle of the mounting bracket 165 facing the material box 200, material box bracket 161 is mounted on the lower part of the mounting bracket 165 facing the material box 200, and clamping block 163 is mounted on clamping block drive member 164 and located above the material box bracket 161; clamping block drive member 164 is generally a cylinder. Clamping block drive member 164 drives clamping block 163 to move up and down relative to material box bracket 161, thereby clamping or releasing the material box 200.

[0098] The bottom of the material box 200 is supported by the material box bracket 161, the top of the material box 200 is clamped by the clamping block drive 164, and the side of the material box 200 is held firmly by the material box limit block 162. The material box 200 can be firmly clamped without shaking.

[0099] like Figure 1 As shown, optionally, there are two conveying mechanisms 15. Figure 11 , Figure 12 As shown, the two conveying mechanisms 15 have identical structures and are arranged side by side. The two conveying mechanisms 15 achieve cyclic operation through the cooperation between two sets of material box translation parts 151 and material box lifting parts 152. While the first conveying mechanism 15 is moving the inspected material box 200 from the frame loading / unloading position to the unloading position 12, the second conveying mechanism 15 is moving the material box 200 from the loading position 11 to the frame loading / unloading position for inspection, achieving continuous inspection without waiting.

[0100] By using two conveying mechanisms in 15 cycles, the loading and unloading process can be accelerated and the loading and unloading efficiency can be improved.

[0101] like Figure 13 , Figure 14 As shown, in one optional implementation, the feeding mechanism 20 includes a clamping component 21 and a transverse component 22. The clamping component 21 is mounted on the transverse component 22. The clamping component 21 is configured to clamp or push the frame 100, and the transverse component 22 is configured to drive the frame 100 to move between the material box 200 and the support portion 30.

[0102] By clamping or pushing the frame 100 with the clamping component 21, and moving the frame 100 between the material box 200 and the support part 30 with the transverse component 22, the automatic loading and unloading of the frame 100 can be realized, thereby improving the loading and unloading efficiency.

[0103] In this embodiment, optionally, the clamping assembly 21 includes a gripper 211, a gripper cylinder 212, and a pressure sensing assembly 213. The gripper 211 is mounted on the gripper cylinder 212, and the pressure sensing assembly 213 is mounted on the mounting plate of the gripper cylinder 212.

[0104] The gripper cylinder 212 drives the gripper 211 to open and close. When the frame 100 is taken out of the material box 200, the gripper 211 clamps the front end of the frame 100. When the frame 100 is pushed back into the material box 200 from the detection platform 31, the gripper 211 is closed, and the front end of the gripper 211 pushes the front end of the frame 100.

[0105] The pressure sensing component 213 is used to detect whether there is jamming when the gripper 211 pushes the frame 100 back into the material box 200. If jamming occurs when the frame 100 is pushed back into the material box 200, the sensing element of the pressure sensing component 213 moves away from the photoelectric sensor, stops operating, and the machine alarms.

[0106] Optionally, the transverse component 22 includes a drive motor 221, a timing belt mechanism 222, and a slide rail assembly 223. The gripper cylinder 212 is mounted on the timing belt mechanism 222 via a connecting block 214 and slides on the slide rail assembly 223. The drive motor 221 drives the timing belt mechanism 222 to rotate and causes the gripping component 21 to move along the slide rail assembly 223.

[0107] The clamping assembly 21 uses a gripper 211 and a gripper cylinder 212, and the transverse assembly 22 uses a drive motor 221 and a synchronous belt mechanism 222. The structure is simple, the cost is low, and it is easy to install and debug.

[0108] like Figure 15 As shown, optionally, the bearing part 30 includes a detection platform 31, a first translation component 32, a second translation component 33, and a clamping component 34.

[0109] The clamping assembly 34 is mounted on the testing platform 31 and is configured to clamp the frame 100 to be tested on the testing platform 31. The clamping assembly 34 clamps the frame 100 by driving the clamping block through a cylinder or electromagnet.

[0110] The testing platform 31 is mounted on the first translation component 32 via a mounting bracket, and its installation position can be adjusted on the mounting bracket. The spacing of the testing platform 31 is adjustable to accommodate frames 100 of different specifications. The first translation component 32 is mounted on the second translation component 33.

[0111] The first translation component 32 is configured to drive the detection platform 31 to move along the first direction, and the second translation component 33 is used to drive the first translation component 32 to move along the second direction perpendicular to the first direction by a first distance, the first distance being the spacing between two adjacent rows of chips on the frame 100 to be detected on the detection platform 31.

[0112] By cooperating with the first translation component 32 and the second translation component 33, the position of the detection platform 31 on the horizontal plane can be adjusted arbitrarily, so that the detection unit 40 can clearly detect the frame 100 to be detected; the clamping component 34 can firmly fix the frame 100 to be detected on the detection platform 31.

[0113] Optionally, there are two support parts 30, and the two support parts 30 move a second distance in a second direction under the drive of their respective second translation components 33.

[0114] By setting two support units 30, material can be fed in a cyclic manner, thereby improving the detection efficiency; the two support units 30 move a second distance in a second direction under the drive of their respective second translation components 33, which can prevent the two detection platforms 31 from colliding when moving in the first direction.

[0115] like Figure 16 As shown, optionally, the detection unit 40 includes five cameras 41. Four cameras 41 are configured to detect the bonding wires connecting the frame 100 on the carrier 30 and the chip, respectively, and one camera 41 detects the front side of the chip inside the frame 100 on the carrier 30.

[0116] The inspection unit 40 uses five cameras 41, which can perform comprehensive inspection of the frame 100 to be inspected from five directions to avoid missed inspections.

[0117] Optionally, the detection unit 40 further includes at least one camera adjustment assembly 42 for adjusting the camera 41, the camera adjustment assembly 42 being configured to adjust the angle and / or position of the camera 41 mounted on the camera adjustment assembly 42. In this embodiment, in addition to the vertically downward-facing camera 41, the other four cameras are all equipped with camera adjustment assemblies 42.

[0118] like Figure 17 , Figure 18 As shown, in one embodiment, the camera adjustment assembly 42 includes a pitch adjustment motor 421, a forward / backward motor 422, and a lift motor 423. The camera 41 is mounted on the pitch adjustment motor 421, which is mounted on the forward / backward motor 422, which is mounted on the lift motor 423. Position adjustment is achieved through the cooperation of these three motors: the lift motor 423 adjusts the vertical position of the camera 41, the forward / backward motor 422 adjusts the horizontal position of the camera 41, and the pitch motor 421 adjusts the pitch angle of the camera 41.

[0119] The position of the camera 41 can be adjusted by the camera adjustment component 42, so that the camera 41 can focus accurately, take clear pictures, and the image size is appropriate.

[0120] Optionally, the vertically downward camera 41 can be equipped with a lifting motor 423, without the need for a pitch adjustment motor 421 and a forward / backward motor 422; only the lifting of the camera 41 needs to be achieved.

[0121] like Figure 1 As shown, optionally, the chip automatic inspection device 1 also includes an NG unloading unit 50, which is configured to push the unqualified frame 100 to the NG box 300.

[0122] The NG unloading section 50 includes an NG pushing component 51 and an NG conveying mechanism 52. The NG pushing component 51 pushes the defective frame 100 into the NG material box 300.

[0123] like Figure 19 , Figure 20 As shown, optionally, the NG pusher assembly 51 includes a pusher block 511, a pressure sensing assembly 512, a connecting block 513, a timing belt mechanism 514, a motor 515, and a slide rail assembly 516.

[0124] Push block 511 is mounted on synchronous belt mechanism 514 via connecting block 513 and slides on slide rail assembly 516. Motor 515 drives synchronous belt mechanism 514 to rotate and moves push block 511 along slide rail assembly 516. Pressure sensing component 512 is mounted on push block 511. Pressure sensing component 512 is used to detect whether there is jamming when push block 511 pushes frame 100 to NG material box 300. If jamming occurs, the sensing element of pressure sensing component 512 moves away from photoelectric sensor, stops operation, and machine alarm.

[0125] like Figure 1 As shown, the NG conveying mechanism 52 includes an NG box clamping part 521 and an NG box lifting part 522. The NG box clamping part 521 is configured to clamp the NG box 300, and the NG box lifting part 522 drives the NG box clamping part 521 to move up and down.

[0126] By configuring the NG unloading section 50, non-conforming frames 100 can be collected into the NG material box 300 for convenient centralized processing later.

[0127] like Figure 1 As shown, the operation flow of the present invention is as follows:

[0128] 1. The loading and unloading section 10 first transports the material box 200 filled with frame 100 to the predetermined position, and the conveying mechanism 15 removes the material box 200 from the loading and unloading section 10 and moves it to the loading position;

[0129] 2. The pushing mechanism 14 pushes the frame 100 inside the material box 200 out a certain distance, such as 5cm;

[0130] 3. The pushing mechanism 20 clamps the frame 100 and pulls it onto the detection platform 31 of the bearing part 30, and the bearing part 30 fixes the frame 100.

[0131] 4. The support unit 30 moves to below the detection unit 40, and the detection unit 40 detects the chips and bonding wires on the frame 100 one by one;

[0132] 5. Qualified frames 100 are conveyed by the bearing part 30 to the OK unloading position (original loading position) and pushed back into the raw material box 200 by the pushing mechanism 20; NG frames 100 are conveyed by the bearing part 30 to the NG unloading position and pushed into the NG material box 300 by the NG unloading part 50.

[0133] Alternatively, the NG frames 100 are placed in the raw material box 200, recorded, and then manually removed in the later stages.

[0134] The present invention has been described above in sufficient detail and with certain specificities. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of the invention should fall within the protection scope of the invention. The scope of protection claimed by the present invention is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. An automatic chip inspection device for inspecting chips and bonding wires fixed on a frame, characterized in that, The chip automatic detection device comprises a pushing feeding mechanism, a bearing part and a detection part. The pushing feeding mechanism is configured to clamp and carry the frame to be detected stored in the magazine to the bearing part, and push the qualified frame after detection back to the magazine. The bearing part is configured to bear and fix the frame to be detected. The detection part is configured to detect the chip and the wire on the frame borne on the bearing part. The pushing feeding mechanism comprises a clamping assembly and a horizontal moving assembly, the clamping assembly is installed on the horizontal moving assembly; the clamping assembly is configured to clamp or push the frame, and the horizontal moving assembly is configured to move the frame between the magazine and the bearing part. The clamping assembly comprises a clamping jaw and a clamping jaw cylinder, the clamping jaw is installed on the clamping jaw cylinder, and the clamping jaw cylinder drives the clamping jaw to open and close; the clamping jaw clamps the front end of the frame when taking out the frame from the magazine, and the clamping jaw is closed when pushing the frame back to the magazine from the detection part, and the front end of the clamping jaw pushes the front end of the frame to move. The horizontal moving assembly comprises a driving motor, a synchronous belt mechanism and a slide rail assembly, the clamping jaw cylinder is installed on the synchronous belt mechanism and is slidingly fitted on the slide rail assembly, and the driving motor drives the synchronous belt mechanism to rotate and drives the clamping assembly to move along the slide rail assembly.

2. The chip automatic detection device according to claim 1, characterized in that, The clamping assembly further comprises a pressure sensing assembly installed on the mounting plate of the clamping jaw cylinder; the pressure sensing assembly is used to detect whether the frame is stuck when the clamping jaw pushes the frame back to the magazine.

3. The chip automatic detection device according to claim 1, wherein The bearing part comprises a detection platform, a first translation assembly, a second translation assembly and a pressing assembly. The pressing assembly is installed on the detection platform and is configured to press the frame to be detected on the detection platform; The detection platform is installed on the first translation assembly, and the first translation assembly is installed on the second translation assembly; The first translation assembly is configured to drive the detection platform to move along a first direction, and the second translation assembly is used to drive the first translation assembly to move a first distance along a second direction perpendicular to the first direction, and the first distance is the interval between adjacent two rows of chips on the frame to be detected on the detection platform.

4. The chip automatic detection device according to claim 3, characterized in that, The bearing part is two, and the two bearing parts move a second distance in the second direction under the driving of the respective second translation assemblies.

5. The chip automatic detection device according to claim 1, wherein The detection part comprises five cameras, four of which are configured to detect the wires connected between the frame and the chip on the bearing part, and one of which is configured to detect the front surface of the chip in the frame on the bearing part.

6. The chip automatic detection device according to claim 5, wherein The detection part further comprises at least one camera adjusting assembly for adjusting the camera, and the camera adjusting assembly is configured to adjust the angle and / or position of the camera installed on the camera adjusting assembly. The camera adjusting assembly comprises a pitch adjusting motor, a horizontal adjusting motor and a vertical adjusting motor, the camera is mounted on the pitch adjusting motor, the pitch adjusting motor is mounted on the horizontal adjusting motor, and the horizontal adjusting motor is mounted on the vertical adjusting motor; the vertical adjusting motor is used for adjusting the vertical position of the camera, the horizontal adjusting motor is used for adjusting the horizontal position of the camera, and the pitch adjusting motor is used for adjusting the pitch angle of the camera.

7. The chip automatic detection device according to claim 1, wherein The chip automatic detection device further comprises a feeding and discharging part, the feeding and discharging part comprises a feeding part and a discharging part which are sequentially mounted from bottom to top along the vertical direction, the feeding part is configured to carry and transport a magazine loaded with frames to be detected, and the discharging part is configured to carry and transport a magazine loaded with frames detected to be qualified; The feeding part comprises a feeding plate, a push block and a push block cylinder, the push block cylinder is mounted on the feeding plate, the push block is mounted on the push block cylinder and located above the feeding plate, and the push block cylinder drives the push block to move, thereby pushing the magazine on the feeding plate to a magazine feeding position; The discharging part comprises a motor and a belt, the motor drives the belt to rotate, thereby receiving the magazine loaded with frames detected to be qualified from a magazine discharging position.

8. The chip automatic detection device according to claim 7, wherein The feeding and discharging part further comprises a width adjusting mechanism, the width adjusting mechanism is used for adjusting the distance between the two side plates of the feeding and discharging part, so as to adapt to the feeding and discharging of magazines of different sizes.

9. The chip automatic detection device according to claim 7, wherein The feeding and discharging part further comprises a magazine pushing mechanism and at least one carrying mechanism, the carrying mechanism is configured to carry the magazine at the magazine feeding position from the feeding part and move to a frame feeding and discharging position, and the magazine pushing mechanism is configured to push the frame to be detected from the magazine at the frame feeding and discharging position; The carrying mechanism is further configured to carry the magazine loaded with frames detected to be qualified at the frame feeding and discharging position to the discharging part.

10. The chip automatic detection device according to claim 9, wherein The carrying mechanism comprises a magazine translation part, a magazine lifting part and a magazine clamping part, the magazine clamping part is mounted on the magazine lifting part, and the magazine lifting part is mounted on the magazine translation part; the magazine clamping part is used for clamping the magazine, the magazine lifting part is used for driving the magazine to lift, and the magazine translation part is used for driving the magazine to translate.

11. The chip automatic detection device according to claim 10, wherein The magazine clamping part comprises a mounting frame, a magazine bracket, a magazine limiting block, a clamping block and a clamping block driving member; the magazine limiting block is mounted on the middle part of the side of the mounting frame facing the magazine, the magazine bracket is mounted on the lower part of the side of the mounting frame facing the magazine, and the clamping block is mounted on the clamping block driving member and located above the magazine bracket; the clamping block driving member drives the clamping block to move relative to the magazine bracket, thereby clamping or releasing the magazine.

12. The chip automatic detection device according to claim 9, wherein The carrying mechanism is two, the two carrying mechanisms are arranged side by side, The two carrying mechanisms are configured to work in a cycle, in the process that the first carrying mechanism carries the magazine from the frame feeding and discharging position to the discharging part, the second carrying mechanism carries the magazine from the feeding part to the frame feeding and discharging position.

13. The apparatus according to claim 1, wherein The chip automatic detection device further comprises an NG discharging part, the NG discharging part is configured to push the frame detected to be unqualified to an NG magazine; The NG blanking part comprises an NG pushing assembly and an NG carrying mechanism, the NG pushing assembly pushes the unqualified frame into an NG box; The NG carrying mechanism comprises an NG box clamping part and an NG box lifting part, the NG box clamping part is configured to clamp the NG box, and the NG box lifting part drives the NG box clamping part to lift.

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