A side wire entry ultra-fine pitch wire bonding blade structure and a method of using the same

Abstract

The application discloses a kind of side wire entry's super-fine pitch welding wire cleaver structure and its using method, it is related to semiconductor packaging technical field, including workbench, lifting platform, lifting counting mechanism, conversion mechanism, pay-off pipe, cleaver mechanism and smoke suction mechanism, lifting platform is slidably arranged between workbench and mounting bracket, lifting counting mechanism is arranged on mounting bracket, conversion mechanism is arranged on lifting platform, cleaver mechanism is arranged on lifting platform, and smoke suction mechanism is arranged on lifting platform.The application utilizes the setting mode that lifting counting mechanism, conversion mechanism, pay-off pipe, cleaver mechanism and smoke suction mechanism cooperate, after reaching specified number, switching cleaver is switched by conversion mechanism, avoid the quality of bonding to be reduced by abrasion, and the cleaver of switching is cleaned, while smoke suction mechanism can absorb the impurities of cleaning and possible smoke, effectively collect smoke and debris, reduce manual intervention in whole process, and production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of semiconductor packaging technology, and in particular to an ultra-fine pitch bonding wire cutter structure with side entry and its usage method. Background Technology

[0002] Gold wire bonding is a thermo-ultrasonic welding process in which gold wires are fixed to the pads on the substrate using a wedge, and heat and ultrasonic energy are conducted to achieve a tight connection of the gold wires. Among them, wedge welding has become the mainstream bonding method in high-tech fields due to its small solder joints and ability to achieve fine-pitch gold wire bonding.

[0003] With the development of the chip industry, the spacing of gold wires on chips is getting smaller and smaller. Generally, a center-to-center distance of 100μm or less is defined as an ultra-fine pitch arrangement. Side-entry wires are generally used to achieve ultra-fine pitch bonding operations.

[0004] Existing cutting tools are generally connected to ultrasonic generators, and after a certain period of use, the cutting head will be contaminated with foreign matter, which needs to be cleaned in time to prevent the foreign matter from interfering with the sealing effect. However, the existing cutting tools are not convenient for cleaning foreign matter at the tip, and users need to regularly observe the cutting tool and disassemble and replace it, which is quite inconvenient. Summary of the Invention

[0005] The purpose of this invention is to provide a side-entry ultra-fine pitch wire bonding cutter structure and its usage method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a side-entry ultra-fine pitch wire bonding wedge structure, comprising:

[0007] A workbench, the top of which is fixedly connected to a mounting bracket;

[0008] A lifting platform, which is slidably disposed between the worktable and the mounting frame;

[0009] A lifting and counting mechanism, which is mounted on a mounting frame, is used to drive the vertical displacement of the lifting platform;

[0010] A conversion mechanism, which is mounted on a lifting platform;

[0011] A wire feeding tube, which is rotatably mounted on a lifting platform via a bearing;

[0012] A cleaving mechanism, which is mounted on a lifting platform, is used for wire bonding;

[0013] A smoking mechanism, which is mounted on a lifting platform, is used to draw in smoke to clean the chopping knife mechanism.

[0014] Preferably, the lifting and counting mechanism includes:

[0015] The first cylinder is fixedly connected to the top of the mounting bracket, and the output end of the first cylinder is connected to the lifting platform via a transmission.

[0016] The sliding rod has grooves evenly spaced on the outer wall of the mounting frame, and the end of the sliding rod is fixedly connected to the inner wall of the groove.

[0017] The slider is slidably connected to the slide rod, and the slider is fixedly connected to the lifting platform;

[0018] The first counter is fixedly installed on the outer wall of the mounting frame. The first counter works in conjunction with the lifting platform to count the number of times the lifting platform is raised and lowered.

[0019] Preferably, the conversion mechanism includes:

[0020] A fixed frame is fixedly connected to the bottom end of the lifting platform;

[0021] Gear block, the gear block being disposed inside the fixed frame;

[0022] A rotating ring is fixedly sleeved on the outside of the gear block, and the inner wall of the fixed frame is provided with a rotating groove for the rotating ring to rotate.

[0023] A drive counting component is mounted on a lifting platform and is used to drive the gear block to rotate;

[0024] A cleaning component is disposed at the bottom of the fixed frame.

[0025] Preferably, the driving counting component includes:

[0026] The mounting platform is fixedly connected to the inner wall of the lifting platform;

[0027] The second cylinder is fixedly mounted on the top of the mounting platform;

[0028] The drive rod is connected to one end of the output end of the second cylinder and the other end of the drive rod is slidably connected to the lifting platform.

[0029] A rack plate, which is slidably inserted into a drive rod and meshing with a gear block;

[0030] The extrusion plate has an extrusion groove inside the rack plate, and the extrusion plate is located inside the extrusion groove. The extrusion plate is fixedly inserted and connected to the drive rod.

[0031] Preferably, the driving counting component further includes:

[0032] Limiting blocks are fixedly sleeved at equal intervals on the outside of the drive rod;

[0033] The extrusion frame is fixedly connected to the bottom end of the limiting block and is used to cooperate with the cleaning component;

[0034] Limiting plates are fixedly connected at equal intervals to the top of the inner wall of the lifting platform;

[0035] A positioning plate is symmetrically and fixedly connected to the top of the rack plate, and is used to cooperate with the limiting plate to limit the displacement of the rack plate;

[0036] An extrusion table, which is fixedly connected to the top of one of the positioning plates;

[0037] The second counter, which is fixedly installed on the outer wall of the mounting platform, is used to count the number of times the extrusion frame is used.

[0038] Preferably, the cleaning component includes:

[0039] The fixed rod has symmetrical displacement grooves at the bottom end of the fixed frame, and the end of the fixed rod is fixedly connected to the inner wall of the displacement groove.

[0040] An extrusion block, wherein the extrusion block is slidably inserted into and connected to a fixing rod;

[0041] A straw, which is fixedly connected to the bottom end of the extrusion block, has an L-shaped cross-section;

[0042] A first compression spring is sleeved on the outside of the fixed rod. One end of the first compression spring is fixedly connected to the extrusion block, and the other end of the first compression spring is fixedly connected to the inner wall of the displacement groove.

[0043] A micro motor, which is fixedly installed at the bottom end of the inner wall of the straw;

[0044] The cleaning head has its output end connected to the cleaning head via a drive connection.

[0045] Preferably, the chopping mechanism includes:

[0046] An ultrasonic generator, wherein the gear block has symmetrically provided lifting grooves, and the ultrasonic generator is slidably inserted into the inner cavity of the lifting groove;

[0047] The main body of the chopping blade is slidably inserted into the inner cavity of the ultrasonic generator, and the main bodies of the chopping blade are symmetrically arranged.

[0048] A positioning pin, which passes through the ultrasonic generator and is threadedly connected to the main body of the chopper;

[0049] A compression rod is fixedly connected to the outer wall of the ultrasonic generator. A conversion groove is provided on the inner wall of the gear block. One end of the compression rod is slidably inserted into the inner cavity of the rotation groove.

[0050] The ball bearings are symmetrically embedded at the top and bottom of the extrusion rod to fit the conversion groove.

[0051] Preferably, the smoking facility includes:

[0052] A fixed frame is fixedly connected to the top of the lifting platform;

[0053] A smoking box, located inside a fixed frame, is fixedly connected to the top of a lifting platform;

[0054] The fan is fixedly installed inside the smoking box;

[0055] A partition, which is fixedly connected to the bottom end of the inner wall of the smoking box;

[0056] A filter plate, which is fixedly installed on the top of the partition;

[0057] A connecting tube, one end of which is fixedly connected to a smoking box, and the other end of which is fixedly connected to a straw;

[0058] An intermittent cleaning component is disposed inside the cigarette case.

[0059] Preferably, the intermittent cleaning component includes:

[0060] A cleaning plate, located inside the cigarette case, is used to clean the filter plate;

[0061] A connecting rod, one end of which is fixedly connected to the cleaning plate, and the other end of which passes through the smoking box and is slidably connected to the lifting platform;

[0062] A synchronization plate, which is fixedly connected to the bottom end of the connecting rod;

[0063] The extrusion roller is rotatably mounted at the bottom end of the synchronization plate, and the extrusion roller cooperates with the extrusion table.

[0064] The second compression spring has one end fixedly connected to the synchronous plate and the other end fixedly connected to the top of the inner wall of the lifting platform.

[0065] This invention also provides a method for using a side-entry ultra-fine pitch wire bonding wedge structure, including the following specific steps:

[0066] Step 1: Initial preparation. Connect the first cylinder, the second cylinder, the micro motor, and the fan to the power supply through the controller. Set the threshold values ​​of the first counter and the second counter in the controller. Install the metal wire coil to the external winding mechanism. Pass the wire end through the unwinding tube and fix it to the wire inlet of the chopping blade body.

[0067] Step 2: Wire bonding. The controller starts the first cylinder, pushing the lifting platform down along the slide bar, causing the wedge body to contact the pad. The ultrasonic generator is activated, and the bonding of the metal wire to the pad is completed through the wedge body. After the bonding is completed, the first cylinder resets the lifting platform, the first counter records one operation, and the wire release tube rotates synchronously with the movement of the lifting platform to release the metal wire.

[0068] Step 3: Chopping blade switching and cleaning. When the first counter reaches the set threshold, the controller triggers the second cylinder to move. The second cylinder pushes the drive rod, which moves the rack plate and drives the gear block to rotate 180°. The extrusion rod slides along the conversion groove to switch the height position of the two chopping blade bodies. At the same time, the cable tube rotates synchronously to the cable inlet position of the other chopping blade body, and the extrusion frame pushes the suction tube close to the chopping blade body to be cleaned. The micro motor starts, the cleaning head rotates to remove dirt from the blade head, and the blower sucks away the debris through the connecting pipe. The filter plate intercepts impurities.

[0069] Step 4: During the bonding process, the smoking mechanism continues to run, absorbing the generated smoke and flying debris through the suction tube. When the switching mechanism is running, the extrusion table pushes the extrusion roller, causing the cleaning plate to move up and down and scrape off the deposits on the surface of the filter plate.

[0070] Step 5: After each blade switch, the second counter accumulates once. When the threshold is reached, the controller triggers an alarm to prompt the operator to replace the blade.

[0071] The technical effects and advantages of this invention are as follows:

[0072] (1) The present invention utilizes a combination of lifting and counting mechanism, conversion mechanism, wire feeding tube, splitting mechanism and smoking mechanism. The lifting and counting mechanism can not only drive the splitting mechanism to move back and forth in the vertical direction and cooperate with the wire feeding tube to perform wire bonding operation, but also count the number of times it is used. After reaching a specified number of times, the conversion mechanism can switch the wire feeding direction of the splitting knife and the wire feeding tube to avoid wear and dirt adhesion that leads to a decrease in bonding quality, and clean the switched splitting knife. At the same time, the smoking mechanism can absorb the cleaned impurities and the smoke that may be generated during wire bonding, effectively collect smoke and debris, improve the working environment, reduce manual intervention throughout the process, improve production efficiency, and is easy to use.

[0073] (2) The present invention utilizes the combination of conversion mechanism and splitting mechanism, and uses the second cylinder to drive the drive rod to move, so that the extrusion plate can drive the rack plate and the extrusion frame on the limit block to realize multi-stage operation of cleaning component and splitting mechanism, so that one suction tube approaches the splitting blade to be cleaned and the other suction tube moves away from the splitting blade to be used. In this process, the height position of the two splitting blades is changed, reducing non-operation downtime and improving production efficiency;

[0074] (3) The present invention utilizes the combination of the extrusion table and the intermittent cleaning component. When the splitting blade is changed each time, the extrusion table can drive the intermittent cleaning component to achieve reciprocating cleaning of the filter plate. This can maintain the filtration quality of the filter plate for smoke and dust, which not only extends the service life of the filter plate, but also reduces the maintenance cost and downtime caused by clogging, and is easy to use. Attached Figure Description

[0075] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0076] Figure 2 This is a schematic diagram of the overall internal structure of the present invention.

[0077] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle.

[0078] Figure 4 This is a schematic diagram of the internal structure of the side of the lifting platform of the present invention.

[0079] Figure 5 This is a schematic diagram of the internal structure of the side of the fixed frame of the present invention.

[0080] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B.

[0081] Figure 7 This is a schematic diagram of the internal structure of the straw on the side of the present invention.

[0082] Figure 8 This is a schematic diagram of the internal structure of the side of the rack plate of the present invention.

[0083] Figure 9 This is a schematic diagram of the internal structure of the side of the intermittent cleaning component of the present invention.

[0084] Figure 10 This is a flowchart illustrating the method of using the cleaver structure of the present invention.

[0085] In the diagram: 1. Workbench; 2. Mounting frame; 3. Lifting platform; 4. Lifting and counting mechanism; 41. First cylinder; 42. Slide rod; 43. Slider; 44. First counter; 5. Conversion mechanism; 51. Fixed frame; 52. Gear block; 53. Rotating ring; 54. Drive counting assembly; 541. Mounting platform; 542. Second cylinder; 543. Drive rod; 544. Rack plate; 545. Extrusion plate; 546. Limiting block; 547. Extrusion frame; 548. Limiting plate; 549. Positioning plate; 5410. Extrusion platform; 5411. Second counter; 55. Cleaning assembly; 5 51. Fixing rod; 552. Squeezing block; 553. Straw; 554. First compression spring; 555. Micro motor; 556. Cleaning head; 6. Feeding tube; 7. Chopping mechanism; 71. Ultrasonic generator; 72. Chopping body; 73. Positioning pin; 74. Squeezing rod; 75. Ball bearing; 8. Smoking mechanism; 81. Fixing frame; 82. Smoking box; 83. Fan; 84. Partition plate; 85. Filter plate; 86. Connecting pipe; 87. Intermittent cleaning assembly; 871. Cleaning plate; 872. Connecting rod; 873. Synchronization plate; 874. Squeezing roller; 875. Second compression spring. Detailed Implementation

[0086] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0087] This invention provides, for example Figure 1-10The diagram illustrates a side-entry ultra-fine pitch wire bonding cleaver structure, comprising a worktable 1, a lifting platform 3, a lifting and counting mechanism 4, a conversion mechanism 5, a wire feeding tube 6, a cleaver mechanism 7, and a fumigation mechanism 8. A mounting frame 2 is fixedly connected to the top of the worktable 1. The lifting platform 3 is slidably disposed between the worktable 1 and the mounting frame 2. The lifting and counting mechanism 4 is mounted on the mounting frame 2 and is used to drive the vertical displacement of the lifting platform 3. The conversion mechanism 5 is mounted on the lifting platform 3. The wire feeding tube 6 is rotatably mounted on the lifting platform 3 via bearings. The wire feeding tube 6, in conjunction with an external metal wire winding mechanism, can perform unwinding operations on the metal wire during lead bonding. The cleaver mechanism 7 is mounted on the lifting platform 3 for lead bonding. The fumigation mechanism 8 is mounted on the lifting platform 3 and is used to extract smoke and clean the cleaver. The cutting mechanism 7, typically paired with a multi-directional displacement stage on the worktable 1, can position the solder pads and work in conjunction with the cutting mechanism 7 to achieve wire bonding. The lifting and counting mechanism 4 not only drives the cutting mechanism 7 to move back and forth vertically, working in conjunction with the wire feeding tube 6 for wire bonding operations, but also counts the number of uses. After reaching a specified number of uses, the switching mechanism 5 can switch the wire feeding direction of the cutting tool and the wire feeding tube 6 to avoid wear and dirt adhesion that could lead to a decrease in bonding quality, and clean the switched cutting tool. At the same time, the fume extraction mechanism 8 can absorb the impurities cleaned and the fumes that may be generated during wire bonding, effectively collecting smoke and debris, improving the working environment. The entire process reduces manual intervention, improves production efficiency, and is easy to use.

[0088] Specifically, the lifting and counting mechanism 4 includes a first cylinder 41, a slide rod 42, a slider 43, and a first counter 44. The first cylinder 41 is fixedly connected to the top of the mounting frame 2. The output end of the first cylinder 41 is connected to the lifting platform 3 via a transmission connection. The first cylinder 41 is electrically connected to an external power supply through an external controller. The first cylinder 41 can drive the lifting platform 3 to move vertically back and forth along the slide rod 42 via the slider 43. The outer wall of the mounting frame 2 is provided with equally spaced sliding grooves. The end of the slide rod 42 is fixedly connected to the inner wall of the sliding groove. The slider 43 is slidably inserted into the slide rod 42. Block 43 is fixedly connected to the lifting platform 3. The first counter 44 is fixedly installed on the outer wall of the mounting frame 2. The first counter 44 and the lifting platform 3 cooperate with each other to count the number of times the lifting platform 3 is raised and lowered. The first counter 44 is electrically connected to an external power supply through an external controller. When the lifting platform 3 is moved back and forth in the vertical direction by the first cylinder 41, the first counter 44 can be squeezed once, so that the first counter 44 records the number of operations. By setting a threshold on the controller, the automatic switching operation can be realized after the main body of the splitting blade 72 has been used a certain number of times.

[0089] Specifically, the conversion mechanism 5 includes a fixed frame 51, a gear block 52, a rotating ring 53, a drive counting component 54, and a cleaning component 55. The fixed frame 51 is fixedly connected to the bottom end of the lifting platform 3. The gear block 52 is disposed inside the fixed frame 51. The rotating ring 53 is fixedly sleeved on the outside of the gear block 52. The inner wall of the fixed frame 51 is provided with a rotating groove for the rotating ring 53 to rotate. The drive counting component 54 is disposed on the lifting platform 3 and is used to drive the gear block 52 to rotate. The cleaning component 55 is disposed at the bottom end of the fixed frame 51.

[0090] Furthermore, the drive counting assembly 54 includes a mounting platform 541, a second cylinder 542, a drive rod 543, a rack plate 544, a pressing plate 545, a limiting block 546, a pressing frame 547, a limiting plate 548, a positioning plate 549, a pressing platform 5410, and a second counter 5411. The mounting platform 541 is fixedly connected to the inner wall of the lifting platform 3. The second cylinder 542 is fixedly mounted on the top of the mounting platform 541. The output end of the second cylinder 542 is connected to one end of the drive rod 543. The other end of the drive rod 543 is slidably inserted into the lifting platform 3. The rack plate 544 is slidably inserted into the drive rod 543. The rack plate 544 is meshed with the gear block 52. A pressing groove is opened inside the rack plate 544. The pressing plate 545 is located inside the pressing groove. The pressing plate 545 is fixedly inserted into the drive rod 543. Limiting blocks 546 are equidistantly fixedly sleeved on the outside of drive rod 543. Extrusion brackets 547 are fixedly connected to the bottom end of limiting blocks 546 to cooperate with cleaning assembly 55. The second cylinder 542 is electrically connected to an external power supply via an external controller. After the first counter 44 reaches a set threshold, the second cylinder 542 can be activated for a single-stroke movement, i.e., a single extension or retraction. This allows the extrusion plate 545 to drive the rack plate 544 and the extrusion bracket 547 on the limiting block 546 to achieve multi-stage operation of the cleaning assembly 55 and the chopping mechanism 7. This causes one suction tube 553 to approach the chopping body 72 to be cleaned, while the other suction tube 553 moves away from the chopping body 72 to be used. In this process, the height positions of the two chopping bodies 72 are switched, reducing downtime during non-operational periods and improving production efficiency. Limiting plates 548 are equidistantly fixedly connected to the top of the inner wall of the lifting platform 3, and positioning plates 549 are symmetrically fixedly connected to the top of the rack plate 544 to cooperate with the limiting plate 546. Positioning plates 548 cooperate to restrict the displacement of rack plate 544. The contact and limiting of positioning plate 549 and limiting plate 548 fix the position of rack plate 544, preventing rack plate 544 from sliding horizontally on drive rod 543 and maintaining the stability of gear block 52 position. Extrusion table 5410 is fixedly connected to the top of one of the positioning plates 549. The cross-section of extrusion table 5410 is triangular and can drive intermittent cleaning component 87. Second counter 5411 is fixedly installed on the outer wall of mounting platform 541 to count the number of extrusions of extrusion frame 547. Second counter 5411 is electrically connected to external power supply through external controller. When the second cylinder 542 drives the extrusion frame 547 connected to upper limit block 546 of drive rod 543 to move, it can count the number of cycles of splitting blade body 72. After reaching the threshold, it will give feedback to remind the two splitting blade bodies 72 to be replaced to avoid sudden damage and facilitate use.

[0091] Furthermore, the cleaning assembly 55 includes a fixing rod 551, a squeezing block 552, a suction tube 553, a first compression spring 554, a micro motor 555, and a cleaning head 556. The bottom end of the fixing frame 51 has symmetrically formed displacement grooves. The end of the fixing rod 551 is fixedly connected to the inner wall of the displacement groove. The squeezing block 552 is slidably inserted into the fixing rod 551. The suction tube 553 is fixedly connected to the bottom end of the squeezing block 552, and its cross-section is L-shaped. The first compression spring 554 is sleeved on the outside of the fixing rod 551. One end of the first compression spring 554 is fixedly connected to the squeezing block 552, and the other end is fixedly connected to the inner wall of the displacement groove. The first compression spring 554 is always subjected to the squeezing block 552. The pressure block 552 provides a stable elastic force to the straw 553, so that when the squeezing frame 547 stops squeezing the straw 553, the straw 553 can move away from the chopping knife body 72 under the elastic force, making it easy to use. The micro motor 555 is fixedly installed at the bottom of the inner wall of the straw 553. The output end of the micro motor 555 is connected to the cleaning head 556. When the chopping knife body 72 is switched from the state of use to the state of standby, the straw 553 can press the end of the chopping knife body 72 against the inside of the cleaning head 556 under the subsequent squeezing of the squeezing frame 547. At this time, the pneumatic micro motor 555 can drive the bristles on the cleaning head 556 to clean the chopping knife body 72, so as to prevent the blade from being contaminated with foreign objects and interfering with the sealing effect.

[0092] Specifically, the chopping mechanism 7 includes an ultrasonic generator 71, a chopping body 72, a positioning pin 73, a pressing rod 74, and a ball bearing 75. The gear block 52 has symmetrically arranged lifting grooves. The ultrasonic generator 71 is slidably inserted into the inner cavity of the lifting groove, and the chopping body 72 is slidably inserted into the inner cavity of the ultrasonic generator 71. The chopping bodies 72 are symmetrically arranged. The positioning pin 73 passes through the ultrasonic generator 71 and is threadedly inserted into the chopping body 72 to ensure the stability and accuracy of the chopping body 72 during operation, avoiding poor welding due to positional deviation. The pressing rod 74 is fixedly connected to the ultrasonic generator. The outer wall of the device 71 and the inner wall of the gear block 52 are provided with conversion grooves. One end of the extrusion rod 74 is slidably connected to the inner cavity of the rotation groove. The balls 75 are symmetrically embedded at the top and bottom of the extrusion rod 74 to fit the conversion groove. When the rack plate 544 drives the gear block 52 to rotate 180°, the balls 75 on the extrusion rod 74 can be displaced in the conversion groove with varying heights to realize the conversion of the height position of the two splitting blade bodies 72. At the same time, when the gear block 52 rotates, the feeding direction of the feeding tube 6 can be changed, making the whole process highly automated and easy to use.

[0093] Specifically, the smoking mechanism 8 includes a fixed frame 81, a smoking box 82, a fan 83, a partition 84, a filter plate 85, a connecting pipe 86, and an intermittent cleaning assembly 87. The fixed frame 81 is fixedly connected to the top of the lifting platform 3. The smoking box 82 is located inside the fixed frame 81 and is fixedly connected to the top of the lifting platform 3. A sealing plate is fixedly installed on the outer wall of the smoking box 82 by bolts. The sealing plate can periodically clean the smoke, dust, and debris sucked up inside. The fan 83 is fixedly installed inside the smoking box 82, and the partition 84 is fixedly connected to the smoking box. At the bottom of the inner wall of 82, the filter plate 85 is fixedly installed on the top of the partition 84. One end of the connecting pipe 86 is fixedly connected to the smoking box 82, and the other end of the connecting pipe 86 is fixedly connected to the suction tube 553. The fan 83 can generate negative pressure inside the smoking box 82, which can then generate negative pressure inside the suction tube 553 through the connecting pipe 86. This allows the impurities and debris cleaned by the cleaning head 556, as well as the smoke and dust that may be generated during lead bonding, to be sucked up and filtered through the filter plate 85. The intermittent cleaning component 87 is set inside the smoking box 82.

[0094] Furthermore, the intermittent cleaning assembly 87 includes a cleaning plate 871, a connecting rod 872, a synchronization plate 873, a squeezing roller 874, and a second compression spring 875. The cleaning plate 871 is located inside the smoking box 82 and is used to clean the filter plate 85. One end of the connecting rod 872 is fixedly connected to the cleaning plate 871, and the other end of the connecting rod 872 passes through the smoking box 82 and is slidably connected to the lifting platform 3. The synchronization plate 873 is fixedly connected to the bottom end of the connecting rod 872. The squeezing roller 874 is rotatably disposed at the bottom end of the synchronization plate 873 and cooperates with the squeezing platform 5410. One end of the second compression spring 875 is fixedly connected to the synchronization plate 873. Next, the other end of the second compression spring 875 is fixedly connected to the top of the inner wall of the lifting platform 3. The second compression spring 875 always provides a stable downward elastic force to the cleaning plate 871 connected to the multiple connecting rods 872 through the synchronous plate 873. This allows the extrusion roller 874 to drive the cleaning plate 871 to move back and forth in the vertical direction when the extrusion platform 5410 moves horizontally. This allows the filter plate 85 to be cleaned in one reciprocating motion, maintaining the filtration quality of the filter plate 85 in absorbing smoke and dust. This not only extends the service life of the filter plate 85 but also reduces maintenance costs and downtime caused by clogging, making it easy to use.

[0095] How to use this invention:

[0096] Step 1: Initial preparation. Connect the first cylinder 41, the second cylinder 542, the micro motor 555, and the fan 83 to the power supply through the controller. Set the threshold values ​​of the first counter 44 and the second counter 5411 in the controller. Install the metal wire coil to the external winding mechanism. Pass the wire end through the wire release tube 6 and fix it to the wire inlet of the chopping blade body 72.

[0097] Step 2: Wire bonding. The controller starts the first cylinder 41, pushing the lifting platform 3 down along the slide bar 42, causing the wedge body 72 to contact the pad. The ultrasonic generator 71 is activated, and the bonding of the metal wire to the pad is completed through the wedge body 72. After the bonding is completed, the first cylinder 41 resets the lifting platform 3, the first counter 44 records one operation, and the wire release tube 6 rotates synchronously with the movement of the lifting platform 3 to release the metal wire.

[0098] Step 3: Chopping knife switching and cleaning. When the first counter 44 reaches the set threshold, the controller triggers the second cylinder 542 to move. The second cylinder 542 pushes the drive rod 543, which moves the rack plate 544 and drives the gear block 52 to rotate 180°. The extrusion rod 74 slides along the conversion groove to switch the height position of the two chopping knife bodies 72. At the same time, the wire feeding tube 6 rotates synchronously to the wire inlet position of the other chopping knife body 72. The extrusion frame 547 pushes the suction tube 553 close to the chopping knife body 72 to be cleaned. The micro motor 555 starts, the cleaning head 556 rotates to remove dirt from the blade head, and the blower 83 sucks away the debris through the connecting pipe 86. The filter plate 85 intercepts impurities.

[0099] Step 4: During the bonding process, the smoking mechanism 8 continues to run, absorbing the generated smoke and flying debris through the suction tube 553. When the conversion mechanism 5 is running, the extrusion table 5410 pushes the extrusion roller 874, causing the cleaning plate 871 to move up and down, scraping off the deposits on the surface of the filter plate 85.

[0100] Step 5: After each blade switch, the second counter 5411 accumulates once. When the threshold is reached, the controller triggers an alarm to prompt the operator to replace the blade.

[0101] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A side-entry ultra-fine pitch wire bonding wedge structure, characterized in that, include: Workbench (1), with a mounting bracket (2) fixedly connected to the top of the workbench (1); A lifting platform (3) is slidably disposed between the workbench (1) and the mounting frame (2); The lifting counting mechanism (4) is mounted on the mounting frame (2) and is used to drive the vertical displacement of the lifting platform (3); A conversion mechanism (5) is disposed on a lifting platform (3), and the conversion mechanism (5) includes: A fixed frame (51) is fixedly connected to the bottom end of the lifting platform (3); Gear block (52), the gear block (52) is disposed inside the fixed frame (51); Rotating ring (53), the rotating ring (53) is fixedly sleeved on the outside of gear block (52), and the inner wall of the fixed frame (51) is provided with a rotating groove for the rotating ring (53) to rotate; A drive counting component (54) is mounted on the lifting platform (3) and is used to drive the gear block (52) to rotate. The drive counting component (54) includes: A squeezing frame (547) is used in conjunction with a cleaning assembly (55); The second counter (5411) is used to count the number of times the extrusion frame (547) is extruded; A cleaning component (55) is disposed at the bottom end of a fixed frame (51), and the cleaning component (55) includes: A straw (553), the cross-section of which is L-shaped; A micro motor (555) is fixedly installed at the bottom end of the inner wall of the straw (553); The cleaning head (556) is connected to the output end of the micro motor (555) in a drive connection. The suction tube (553) can press the end of the chopping blade against the inside of the cleaning head (556) under the pressure of the extrusion frame (547), and the brush bristles on the cleaning head (556) are driven by the pneumatic micro motor (555) for cleaning. The wire feeding tube (6) is rotatably mounted on the lifting platform (3) via a bearing; A splitting mechanism (7) is mounted on a lifting platform (3) and is used for wire bonding; Smoking mechanism (8), which is set on the lifting platform (3), is used to draw smoke to clean the chopping knife mechanism (7).

2. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 1, characterized in that, The lifting and counting mechanism (4) includes: The first cylinder (41) is fixedly connected to the top of the mounting bracket (2), and the output end of the first cylinder (41) is connected to the lifting platform (3) in a transmission manner. The slide rod (42) has grooves evenly spaced on the outer wall of the mounting bracket (2), and the end of the slide rod (42) is fixedly connected to the inner wall of the groove; The slider (43) is slidably connected to the slide rod (42), and the slider (43) is fixedly connected to the lifting platform (3); The first counter (44) is fixedly installed on the outer wall of the mounting frame (2). The first counter (44) cooperates with the lifting platform (3) to count the number of times the lifting platform (3) is raised and lowered.

3. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 2, characterized in that, The drive counting component (54) also includes: The second cylinder (542) is fixedly mounted on the top of the mounting platform (541); The output end of the second cylinder (542) is connected to one end of the drive rod (543), and the other end of the drive rod (543) is slidably connected to the lifting platform (3). A rack plate (544) is slidably inserted into a drive rod (543), and the rack plate (544) is meshed with a gear block (52); The extrusion plate (545) has an extrusion groove inside the rack plate (544), and the extrusion plate (545) is located inside the extrusion groove. The extrusion plate (545) is fixedly inserted and connected to the drive rod (543).

4. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 3, characterized in that, The drive counting component (54) also includes: A limiting block (546) is fixedly sleeved on the outside of the drive rod (543) at equal intervals, and the extrusion frame (547) is fixedly connected to the bottom end of the limiting block (546). Limiting plate (548), the limiting plate (548) is fixedly connected at equal intervals to the top of the inner wall of the lifting platform (3); Positioning plate (549), which is symmetrically fixedly connected to the top of rack plate (544) and is used to cooperate with limiting plate (548) to limit the displacement of rack plate (544); An extrusion table (5410) is fixedly connected to the top of one of the positioning plates (549).

5. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 1, characterized in that, The cleaning component (55) also includes: The fixed rod (551) has a displacement groove symmetrically provided at the bottom end of the fixed frame (51), and the end of the fixed rod (551) is fixedly connected to the inner wall of the displacement groove. The extrusion block (552) is slidably inserted into the fixing rod (551), and the suction tube (553) is fixedly connected to the bottom end of the extrusion block (552). The first compression spring (554) is sleeved on the outside of the fixed rod (551). One end of the first compression spring (554) is fixedly connected to the extrusion block (552), and the other end of the first compression spring (554) is fixedly connected to the inner wall of the displacement groove.

6. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 3, characterized in that, The chopping mechanism (7) includes: An ultrasonic generator (71) has symmetrically provided lifting grooves on the gear block (52), and the ultrasonic generator (71) is slidably inserted into the inner cavity of the lifting groove. The main body of the chopping blade (72) is slidably inserted into the inner cavity of the ultrasonic generator (71), and the main body of the chopping blade (72) is symmetrically arranged; A positioning pin (73) passes through the ultrasonic generator (71) and is threadedly connected to the chopping body (72); The extrusion rod (74) is fixedly connected to the outer wall of the ultrasonic generator (71). The inner wall of the gear block (52) is provided with a conversion groove. One end of the extrusion rod (74) is slidably inserted into the inner cavity of the rotating groove. Ball bearings (75) are symmetrically embedded at the top and bottom of the extrusion rod (74) for fitting the conversion groove.

7. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 6, characterized in that, The smoking facility (8) includes: A fixed frame (81) is fixedly connected to the top of the lifting platform (3); A smoking box (82) is located inside a fixed frame (81) and is fixedly connected to the top of a lifting platform (3); A fan (83) is fixedly installed inside the smoking box (82); A partition (84) is fixedly connected to the bottom end of the inner wall of the smoking box (82); A filter plate (85) is fixedly installed on the top of a partition plate (84); A connecting tube (86) is fixedly connected at one end to a smoking box (82) and at the other end to a straw (553); Intermittent cleaning component (87) is disposed inside the smoking box (82).

8. The ultra-fine pitch wire bonding wedge structure with side entry as described in claim 7, characterized in that, The intermittent cleaning component (87) includes: A cleaning plate (871) is located inside the smoking box (82) and is used to clean the filter plate (85). A connecting rod (872) is fixedly connected at one end to a cleaning plate (871), and the other end of the connecting rod (872) passes through a smoking box (82) and is slidably inserted into a lifting platform (3); Synchronization plate (873), which is fixedly connected to the bottom end of connecting rod (872); The extrusion roller (874) is rotatably mounted on the bottom end of the synchronization plate (873), and the extrusion roller (874) cooperates with the extrusion table (5410); The second compression spring (875) has one end fixedly connected to the synchronous plate (873) and the other end fixedly connected to the top of the inner wall of the lifting platform (3).

9. A method of using a side-entry ultra-fine pitch wire bonding wedge structure according to any one of claims 1-8, characterized in that, The specific usage steps are as follows: Step 1: Initial preparation. Connect the first cylinder (41), the second cylinder (542), the micro motor (555), and the fan (83) to the power supply through the controller. Set the threshold values ​​of the first counter (44) and the second counter (5411) in the controller. Install the metal wire coil to the external winding mechanism. Pass the wire end through the wire release tube (6) and fix it to the wire inlet of the chopping blade body (72). Step 2: Wire bonding. The controller starts the first cylinder (41), which pushes the lifting platform (3) down along the slide bar (42), causing the cleaver body (72) to contact the pad. The ultrasonic generator (71) is activated, and the bonding of the metal wire to the pad is completed through the cleaver body (72). After the bonding is completed, the first cylinder (41) resets the lifting platform (3), the first counter (44) records one operation, and the wire release tube (6) rotates synchronously with the movement of the lifting platform (3) to release the metal wire. Step 3: Chopping knife switching and cleaning. When the first counter (44) reaches the set threshold, the controller triggers the second cylinder (542) to move. The second cylinder (542) pushes the drive rod (543), which moves the rack plate (544) and drives the gear block (52) to rotate 180°. The extrusion rod (74) slides along the conversion groove to switch the height position of the two chopping knife bodies (72). At the same time, the wire feeding tube (6) rotates synchronously to the wire inlet position of the other chopping knife body (72). The extrusion frame (547) pushes the suction tube (553) close to the chopping knife body (72) to be cleaned. The micro motor (555) starts, the cleaning head (556) rotates to remove dirt from the blade head, and the blower (83) sucks away the debris through the connecting pipe (86). The filter plate (85) intercepts the impurities. Step 4: During the bonding process, the smoking mechanism (8) continues to run, absorbing the generated smoke and flying debris through the suction tube (553). When the conversion mechanism (5) is running, the extrusion table (5410) pushes the extrusion roller (874), which drives the cleaning plate (871) to move up and down, scraping off the deposits on the surface of the filter plate (85). Step 5: After each blade switch, the second counter (5411) accumulates once. When the threshold is reached, the controller triggers an alarm to prompt the operator to change the blade.

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