Preparation method of high-reliability palladium-plated bonding wire

Abstract

The invention discloses a preparation method of a high-reliability palladium-plated bonding wire, and relates to the technical field of bonding wires, the preparation method of the high-reliability palladium-plated bonding wire is realized through preparation equipment of the high-reliability palladium-plated bonding wire, and the preparation equipment of the high-reliability palladium-plated bonding wire comprises a cleaning mechanism, a control mechanism and a control mechanism, and the cleaning mechanism comprises an outer box body and a cleaning box, the bottom of the cleaning box is elastically connected with cleaning cotton, the side walls of the outer box body and the cleaning box are each provided with a circular through hole for a bonding wire to penetrate through, and the opposite side walls of the outer box body are each provided with a strip-shaped air inlet hole. The outer box body is provided with the circular air inlet holes, flames in the outer box body can be extinguished conveniently, fire spreading is avoided, meanwhile, the circular air inlet holes can increase circulation of air in the fixing cylinder, a fan can blow air into a pipeline conveniently, circulation of the air in the outer box body is reduced due to the fact that the lower end opening of the fixing cylinder is closed through the circular plate, and the fire is prevented from spreading upwards.

Description

Technical Field

[0001] The invention relates to the technical field of bonding wires, and more particularly to a method for preparing high-reliability palladium-plated bonding wires. Background Art

[0002] Bonding wire is a kind of fine diameter high tensile strength metal wire, which is an indispensable package inner lead in the manufacturing process of integrated circuits, semiconductor discrete devices and LED light-emitting tubes. Common ones include alloy bonding wire, copper bonding wire, aluminum bonding wire, gold bonding wire, etc.

[0003] The invention patent with patent announcement number: CN114005807B discloses a gold-plated palladium copper-based bonding wire, which is made of the following materials in weight percentage: 90%-93% copper, 0.005-0.006% platinum, 0.001-0.005% cerium, 6%-9% gold, and 0.4%-0.9% palladium. The copper-based bonding wire is made of a master alloy substrate formed by adding platinum and cerium to the base material copper, and the surface of the fine metal wire made of the master alloy substrate is plated with gold and then palladium to form the copper-based bonding wire.

[0004] Although the gold-plated palladium copper-based bonding wire has good bonding properties between the mother alloy substrate and the plating layer, and the plating layer is not easy to fall off; however, during the process of cleaning the gold-plated palladium copper-based bonding wire with alcohol, since the alcohol is easily volatile in the air, the alcohol content in the air near the cleaning box for loading alcohol is relatively high. When sparks or flames appear near the cleaning box for loading alcohol, it is very easy to ignite the alcohol contained in the air, and at the same time ignite the alcohol in the cleaning box, causing a fire. When the alcohol content in the air is too high, it will cause an explosion, resulting in unnecessary losses. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a method for preparing a high-reliability palladium-plated bonding wire.

[0006] To achieve the above object, the present invention provides the following technical solutions: A method for preparing a high-reliability palladium-plated bonding wire, wherein the method for preparing a high-reliability palladium-plated bonding wire is implemented by a high-reliability palladium-plated bonding wire preparation device, and the high-reliability palladium-plated bonding wire preparation device comprises: The cleaning mechanism comprises an outer box body and a cleaning box, the bottom of the cleaning box is elastically connected with cleaning cotton, the side walls of the outer box body and the cleaning box are provided with circular through holes for the bonding wire to pass through, and the opposite side walls of the outer box body are provided with strip-shaped air inlet holes, and the outer side wall of the outer box body is rotatably connected with a winding wheel.

[0007] A fire extinguishing mechanism, the fire extinguishing mechanism includes a loading box for loading dry powder fire extinguishing agent, the loading box is fixedly connected to the inner wall of the outer box body, and a circular outlet is opened on the side wall of the loading box, the circular outlet is covered with a protective film, and a fixed cylinder is fixedly connected to the top of the outer box body, a fan is fixedly connected to the inner wall of the fixed cylinder, and a pipe is fixedly connected to the side wall of the fixed cylinder, the lower end of the pipe passes through the side wall of the outer box body and is connected to the loading box, and the upper port of the pipe is located on the upper side of the fan, and a control mechanism is arranged in the fixed cylinder.

[0008] Preferably, the bottom of the cleaning box is slidably connected to a relatively arranged sliding plate, the side wall of the sliding plate is fixedly connected to a first spring, one end of the first spring is fixedly connected to the side wall of the cleaning box, and the cleaning cotton is fixedly connected to the side wall of the sliding plate.

[0009] Both ends of the cleaning cotton are provided with guide pulleys, and the guide pulleys are respectively rotatably connected to the top and the bottom of the cleaning box and matched with the circular through holes, and the guide pulleys are matched with each other.

[0010] Preferably, the control mechanism includes a limit plate, a second spring is fixedly connected to the lower surface of the limit plate, the lower end of the second spring is fixedly connected to the top of the loading box, a control rope is fixedly connected to the lower surface of the limit plate, one end of the control rope is downwardly wrapped around the lower end surface of the cleaning box and fixedly connected to the end of the limit plate.

[0011] A circular plate is fixedly connected to the upper surface of the limiting plate, and the circular plate is located directly below the fixing cylinder and matches with the fixing cylinder.

[0012] Preferably, the upper end surface of the circular plate is fixedly connected with a connecting rod, the upper end surface of the connecting rod is fixedly connected with a block, the block covers the upper port of the pipe, the upper end surface of the block is fixedly connected with a cover plate, the top of the fixed cylinder is fixedly connected with a circular fixing plate, the circular fixing plate and the cover plate are both provided with circular air outlet holes, and the circular air outlet holes on the circular fixing plate and the cover plate are staggered and cooperate with each other.

[0013] Preferably, at least two circular air inlet holes are opened on the top of the outer box body, and the circular air inlet holes are connected to the fixed cylinder, and an annular cover plate is provided on the inner wall of the fixed cylinder, and the annular cover plate is fixedly connected to the connecting rod, and the annular cover plate covers the ends of the circular air inlet holes.

[0014] Preferably, a fixing plate is fixedly connected to the side wall of the outer box body, the winding wheel is rotatably connected to the fixing plate, and a driving motor is fixedly connected to the fixing plate, and the output shaft of the driving motor passes through the side wall of the fixing plate and is fixedly connected to the rotating shaft of the winding wheel.

[0015] Preferably, a connecting plate that cooperates with each other up and down is fixedly connected to the outer wall of the outer box body away from the winding wheel, and cutting blades are fixedly connected to the opposite side walls of the two connecting plates, and the cutting blades are symmetrically arranged about the circular through hole, and at least two conveying rollers are rotatably connected to the connecting plate, and the conveying rollers are symmetrically arranged about the circular through hole.

[0016] Preferably, a fixing frame is fixedly connected to the bottom of the outer box body, the lower end surface of the fixing frame is fixedly connected to the bottom of the outer box body, the upper end surface of the fixing frame is fixedly connected to the bottom of the cleaning box, and a groove is formed between the outer wall of the fixing frame and the bottom and inner wall of the outer box body, and a water pump is fixedly connected to the bottom of the groove.

[0017] The bottom of the loading box is fixedly connected with a water pipeline, the water pump is connected with the water pipeline through a connecting pipeline, and the bottom of the water pipeline is fixedly connected with at least two nozzles, and the nozzles are located above the strip-shaped air inlet holes.

[0018] Preferably, the method for preparing the high-reliability palladium-plated bonding wire specifically comprises the following steps: S1: Alcohol is injected into the cleaning box, and then the master alloy substrate coated with a photoresist layer is passed through two conveying rollers and a circular through hole into the cleaning box, then passed through a guide pulley, passed between two cleaning cottons, and then passed through the circular through hole and wound and fixed on the winding wheel.

[0019] S2: Start the driving motor, which drives the winding wheel to rotate and wind up the master alloy substrate. When the master alloy substrate passes through the cutting blade, the cutting blade cuts and peels off the photoresist layer on the surface of the master alloy substrate. When the master alloy substrate passes through the cleaning cotton, the friction between the master alloy substrate and the cleaning cotton is used to clean the master alloy substrate.

[0020] S3: Start the fan, which blows the air containing alcohol in the outer box to the outside of the outer box, so as to reduce the alcohol content in the air in the outer box.

[0021] S4: Then inject clean water into the groove and start the water pump. The water pump transports the water in the groove to the water pipe and sprays it out in the form of mist through the nozzle. When the flame enters the outer box through the strip air inlet hole, the water vapor sprayed by the nozzle extinguishes the flame.

[0022] S5: When the flame is difficult to extinguish with water and the flame enters the outer box, the flame contacts the protective film and the control rope, the protective film and the control rope are broken, and the dry powder fire extinguishing agent is sprayed out through the circular outlet to extinguish the flame, and the circular plate cover is closed on the lower end of the fixed cylinder to seal the lower end surface of the fixed cylinder to prevent the circulation of air in the outer box, which is convenient for extinguishing the flame.

[0023] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the output shaft of the driving motor drives the rotating shaft on the winding wheel to rotate, thereby driving the winding wheel to rotate. The winding wheel winds up the mother alloy substrate during the rotation process to achieve the movement of the mother alloy substrate. When the mother alloy substrate passes through the cutting blade, the friction between the blade edge of the horizontally arranged first cutting blade and the mother alloy substrate is achieved, so that the cutting blade cuts the photoresist layer on the surface of the mother alloy substrate. The back of the vertical second cutting blade fits the outer wall of the outer box body, and the back width of the second cutting blade is greater than the width of the blade edge. Therefore, when the photoresist layer on the cut mother alloy substrate passes through the second cutting blade, the side wall of the second cutting blade pushes the photoresist layer to both sides, so that the photoresist layer is separated from the mother alloy substrate, thereby achieving the stripping of the photoresist layer on the mother alloy substrate.

[0024] 2. In the present invention, the two sliding plates are pushed toward each other by the first spring, so that the opposite side walls of the two cleaning cottons are fitted together, thereby increasing the friction between the master alloy substrate and the cleaning cotton during movement, so that the cleaning cotton can clean the photoresist layer and dust attached to the surface of the master alloy substrate, thereby achieving the cleaning of the master alloy base.

[0025] 3. In the present invention, the protective film and the control rope are burned by sparks or flames, and the protective film and the control rope are broken and damaged, the circular outlet is in an open state, and the dry powder fire extinguishing agent in the loading box is sprayed out through the circular outlet, so as to extinguish the flames entering the outer box body and prevent the fire from spreading; after the control rope is broken, the limit plate is pushed upward by the second spring, driving the circular plate, the connecting rod, the stopper, the cover plate, and the annular cover plate to move upward, the circular plate covers the lower end of the fixed cylinder, the cover plate moves up and covers the circular fixed plate, and the circular air outlet on the circular fixed plate is blocked, so as to achieve the top of the fixed cylinder The part is closed. At this time, the block and the annular cover are respectively located on the upper sides of the pipeline and the circular air inlet hole, the port of the pipeline and the circular air inlet hole are in an open state, the fan blows the wind into the loading box through the pipeline, and blows the dry powder fire extinguishing agent in the loading box out through the circular outlet, so that the dry powder fire extinguishing agent floats in the outer box body, which is convenient for extinguishing the flame in the outer box body and avoiding the spread of fire. At the same time, the circular air inlet hole can increase the circulation of air in the fixed cylinder, which is convenient for the fan to blow wind into the pipeline. Since the circular plate closes the lower port of the fixed cylinder, the circulation of air in the outer box body is reduced, thereby avoiding the fire from spreading upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 It is a schematic diagram of the internal structure of the present invention; Figure 4 It is a cross-sectional schematic diagram of the cleaning device in the present invention; Figure 5 It is a cross-sectional schematic diagram of the fire extinguishing mechanism in the present invention; Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0027] 1. Cleaning mechanism; 2. Outer box; 3. Cleaning box; 4. Cleaning cotton; 5. Fire extinguishing mechanism; 6. Loading box; 7. Round outlet; 8. Protective film; 9. Fixed cylinder; 10. Fan; 11. Pipeline; 12. Strip air inlet; 13. Control mechanism; 14. Round through hole; 15. Winding wheel; 16. Guide pulley; 17. Sliding plate; 18. First spring; 19. Limiting plate; 20. Second spring; 21. Control rope; 22, circular plate; 23, connecting rod; 24, block; 25, cover plate; 26, circular fixing plate; 27, circular air outlet; 28, fixing frame; 29, circular air inlet; 30, annular cover plate; 31, groove; 32, water pump; 33, water pipeline; 34, connecting pipeline; 35, nozzle; 36, fixing plate; 37, driving motor; 38, connecting plate; 39, cutting blade; 40, conveying roller. DETAILED DESCRIPTION

[0028] Reference Figures 1 to 6 .

[0029] Example 1 further illustrates the method for preparing the high-reliability palladium-plated bonding wire proposed by the present invention.

[0030] A method for preparing a high-reliability palladium-plated bonding wire. The method for preparing a high-reliability palladium-plated bonding wire is realized by a high-reliability palladium-plated bonding wire preparation device. The high-reliability palladium-plated bonding wire preparation device includes: The cleaning mechanism 1 comprises an outer box body 2 and a cleaning box 3, the bottom of the cleaning box 3 is elastically connected with a cleaning cotton 4, the side walls of the outer box body 2 and the cleaning box 3 are provided with a circular through hole 14 for the bonding wire to pass through, and the opposite side walls of the outer box body 2 are provided with a strip-shaped air inlet hole 12, and the outer side wall of the outer box body 2 is rotatably connected with a winding wheel 15.

[0031] The fire extinguishing mechanism 5 includes a loading box 6 for loading a dry powder fire extinguishing agent, the loading box 6 is fixedly connected to the inner wall of the outer box body 2, and a circular outlet 7 is opened on the side wall of the loading box 6, and the circular outlet 7 is covered with a protective film 8, and a fixed cylinder 9 is fixedly connected to the top of the outer box body 2, a fan 10 is fixedly connected to the inner wall of the fixed cylinder 9, and a pipe 11 is fixedly connected to the side wall of the fixed cylinder 9, the lower end of the pipe 11 passes through the side wall of the outer box body 2 and is connected to the loading box 6, and the upper end of the pipe 11 is fixedly connected to the side wall of the outer box body 2. Located on the upper side of the fan 10, a control mechanism 13 is arranged in the fixed cylinder 9, the loading box 6 is in the shape of a "U" character, and the loading box 6 is sleeved on the outside of the cleaning box 3, and the circular outlet 7 is arranged opposite to the outer wall of the cleaning box 3, so as to facilitate the extinguishing of the flame at the lower end of the outer box body 2 and prevent the flame from entering the upper side of the outer box body 2 through the loading box 6 and the cleaning box 3. The material of the protective film 8 is a plastic film. When the protective film 8 contacts the flame, the protective film 8 melts and the circular outlet 7 opens, so as to facilitate the spraying of the dry powder fire extinguishing agent in the loading box 6.

[0032] The bottom of the cleaning box 3 is slidably connected to a relatively arranged sliding plate 17, and a first spring 18 is fixedly connected to the side wall of the sliding plate 17. One end of the first spring 18 is fixedly connected to the side wall of the cleaning box 3, and the cleaning cotton 4 is fixedly connected to the side wall of the sliding plate 17.

[0033] Both ends of the cleaning cotton 4 are provided with guide pulleys 16, and the multiple guide pulleys 16 are rotatably connected to the top and bottom of the cleaning box 3 and matched with the circular through holes 14, and the multiple guide pulleys 16 are matched with each other.

[0034] The control mechanism 13 includes a limit plate 19, a second spring 20 is fixedly connected to the lower surface of the limit plate 19, the lower end of the second spring 20 is fixedly connected to the top of the loading box 6, a control rope 21 is fixedly connected to the lower surface of the limit plate 19, one end of the control rope 21 is downwardly wrapped around the lower end surface of the cleaning box 3 and fixedly connected to the end of the limit plate 19, the control rope 21 is made of plastic material, when the control rope 21 contacts the flame, the control rope 21 is easy to break quickly.

[0035] A circular plate 22 is fixedly connected to the upper surface of the limiting plate 19. The circular plate 22 is located directly below the fixed cylinder 9 and cooperates with the fixed cylinder 9. The diameter value of the circular plate 22 is consistent with the diameter value of the fixed cylinder 9, so that the circular plate 22 can cover the lower end of the fixed cylinder 9, thereby facilitating the closing of the lower end surface of the fixed cylinder 9.

[0036] A connecting rod 23 is fixedly connected to the upper end surface of the circular plate 22, and a stopper 24 is fixedly connected to the upper end surface of the connecting rod 23. The stopper 24 covers the upper port of the pipe 11, and a cover plate 25 is fixedly connected to the upper end surface of the stopper 24. A circular fixing plate 26 is fixedly connected to the top of the fixed cylinder 9. Circular air outlet holes 27 are provided on the circular fixing plate 26 and the cover plate 25. The circular air outlet holes 27 on the circular fixing plate 26 and the cover plate 25 are staggered and cooperate with each other. An air outlet duct is fixedly connected to the upper end surface of the cover plate 25, which is convenient for discharging the air containing alcohol in the outer box body 2 out of the outer box body 2, thereby reducing the alcohol content in the air in the outer box body 2. At the same time, adsorptive substances such as activated carbon can be placed on the circular fixing plate 26, which is convenient for adsorbing the alcohol in the air discharged from the outer box body 2, thereby reducing the alcohol content in the air discharged from the outer box body 2.

[0037] At least two circular air inlet holes 29 are provided on the top of the outer box body 2, and the circular air inlet holes 29 are connected to the fixed tube 9, and an annular cover plate 30 is provided on the inner wall of the fixed tube 9, and the annular cover plate 30 is fixedly connected to the connecting rod 23, and the annular cover plate 30 covers the end of the circular air inlet hole 29.

[0038] A fixing plate 36 is fixedly connected to the side wall of the outer box body 2, and the winding wheel 15 is rotatably connected to the fixing plate 36. A driving motor 37 is fixedly connected to the fixing plate 36, and the output shaft of the driving motor 37 passes through the side wall of the fixing plate 36 and is fixedly connected to the rotating shaft of the winding wheel 15.

[0039] A connecting plate 38 that cooperates with each other in an upper and lower manner is fixedly connected to the outer side wall of the outer box body 2 away from the winding wheel 15, and cutting blades 39 are fixedly connected to the opposite side walls of the two connecting plates 38. The cutting blades 39 are symmetrically arranged about the circular through hole 14, and at least two conveying rollers 40 are rotatably connected to the connecting plate 38. The conveying rollers 40 are symmetrically arranged about the circular through hole 14. The cutting blades 39 are divided into two groups, and the two groups of cutting blades 39 include a first cutting blade arranged horizontally and a second cutting blade arranged vertically. The cutting edge of the second cutting blade is close to the first cutting blade, and the cutting edges of the two first cutting blades are arranged opposite to each other, which is convenient for cutting the photoresist layer on the surface of the bonding wire and for peeling off the photoresist layer on the surface of the bonding wire.

[0040] The preparation method of high reliability palladium-plated bonding wire specifically comprises the following steps: S1: Alcohol is injected into the cleaning box 3, and then the master alloy substrate coated with a photoresist layer is passed through the two conveying rollers 40 and the circular through hole 14 into the cleaning box 3, and then passed through the guide pulley 16, passed between the two cleaning cottons 4, and then passed through the circular through hole 14 and wound and fixed on the winding wheel 15.

[0041] S2: Start the driving motor 37, the driving motor 37 drives the winding wheel 15 to rotate and wind up the master alloy substrate. When the master alloy substrate passes through the cutting blade 39, the cutting blade 39 cuts and peels off the photoresist layer on the surface of the master alloy substrate. When the master alloy substrate passes through the cleaning cotton 4, the friction between the master alloy substrate and the cleaning cotton 4 is used to clean the master alloy substrate.

[0042] S3: Start the fan 10, which blows the air containing alcohol in the outer box 2 to the outside of the outer box 2, so as to reduce the alcohol content in the air in the outer box 2 and avoid explosion when the air in the outer box 2 comes into contact with sparks and flames due to excessive alcohol content. At the same time, the fan 10 sucks the air at the bottom of the outer box 2 upward and blows it out through the fixed tube 9, thereby preventing alcohol from diffusing outward through the circular through hole 14 to the lower end of the outer box 2, thereby preventing alcohol from diffusing outward through the strip air inlet hole 12 and coming into contact with sparks and flames near the strip air inlet hole 12, causing the fire to spread. At the same time, the fan 10 transports the alcohol in the air in the outer box 2 to the outside, thereby reducing the alcohol content in the air in the outer box 2 and avoiding explosion due to excessive alcohol content in the air in the outer box 2.

[0043] S4: clean water is then injected into the groove 31, and the water pump 32 is started. The water pump 32 transports the water in the groove 31 to the water pipe 33, and sprays it out in a mist form through the nozzle 35. When the flame enters the outer box body 2 through the strip air inlet hole 12, the water vapor sprayed by the nozzle 35 puts out the flame.

[0044] S5: When the flame is difficult to extinguish with water and the flame enters the outer box body 2, the flame contacts the protective film 8 and the control rope 21, and the protective film 8 and the control rope 21 are broken, and the dry powder fire extinguishing agent is sprayed out through the circular outlet 7 to extinguish the flame, and the circular plate 22 covers the lower end of the fixed cylinder 9 to seal the lower end surface of the fixed cylinder 9, thereby preventing the circulation of air in the outer box body 2 and facilitating the extinguishing of the flame.

[0045] Working principle: alcohol is injected into the cleaning box 3, and then the mother alloy substrate coated with the photoresist layer is passed into the cleaning box 3 through two conveying rollers 40 and the circular through hole 14, and then passed through the guide pulley 16, passed between the two cleaning cottons 4, and then passed through the circular through hole 14 and wound and fixed on the winding wheel 15; the drive motor 37 and the wires on the fan 10 are electrically connected to the power supply, and the drive motor 37 is started. The output shaft of the drive motor 37 drives the rotating shaft on the winding wheel 15 to rotate, thereby driving the winding wheel 15 to rotate. The winding wheel 15 winds up the mother alloy substrate during the rotation process to realize the movement of the mother alloy substrate. When the mother alloy substrate passes through the cutting blade 39, the friction between the blade edge of the horizontally arranged first cutting blade and the mother alloy substrate is realized, so that the cutting blade 39 can cut the photoresist layer on the surface of the mother alloy substrate. The cutting is carried out, and the back of the vertical second cutting blade is in contact with the outer wall of the outer box body 2, and the back width of the second cutting blade is greater than the width of the blade edge, so that the photoresist layer on the cut mother alloy substrate is pushed to both sides by the side walls of the second cutting blade when passing through the second cutting blade, so that the photoresist layer is separated from the mother alloy substrate, and the photoresist layer on the mother alloy substrate is stripped; when the mother alloy substrate passes through the cleaning cotton 4, due to the elastic force of the first spring 18, the first spring 18 pushes the two sliding plates 17 toward each other, so that the opposite side walls of the two cleaning cottons 4 are in contact, thereby increasing the friction between the mother alloy substrate and the cleaning cotton 4 during the movement, so that the cleaning cotton 4 cleans the photoresist layer and dust attached to the surface of the mother alloy substrate, thereby achieving the cleaning of the mother alloy substrate.

[0046] When external flames or sparks enter the outer box body 2 through the strip air inlet hole 12, due to the high temperature of the flames and sparks, when the flames and sparks come into contact with the protective film 8 and the control rope 21, the protective film 8 and the control rope 21 will be broken and damaged due to the high temperature. After the protective film 8 is broken, the circular outlet 7 is in an open state, and the dry powder fire extinguishing agent in the loading box 6 is sprayed out through the circular outlet 7, so as to extinguish the flame entering the outer box body 2 and prevent the fire from spreading. After the control rope 21 breaks, due to the elastic force of the second spring 20, the second spring 20 pushes the limit plate 19 upward, driving the circular plate 22, the connecting rod 23, the stopper 24, the cover plate 25, and the annular cover plate 30 to move upward, and the circular plate 22 covers the lower end of the fixed cylinder 9, and the cover plate 25 moves up to cover the circular fixed cylinder 9. On the fixed plate 26, the circular air outlet 27 on the circular fixed plate 26 is blocked to achieve the closure of the top of the fixed cylinder 9. At this time, the block 24 and the annular cover plate 30 are respectively located on the upper sides of the pipe 11 and the circular air inlet 29. The port of the pipe 11 and the circular air inlet 29 are in an open state. The fan 10 blows the wind into the loading box 6 through the pipe 11, and blows the dry powder fire extinguishing agent in the loading box 6 out through the circular outlet 7, so that the dry powder fire extinguishing agent floats in the outer box 2, so that the flames in the outer box 2 can be extinguished to prevent the fire from spreading. At the same time, the circular air inlet 29 can increase the circulation of air in the fixed cylinder 9, so that the fan 10 can blow the wind into the pipe 11. Since the circular plate 22 closes the lower port of the fixed cylinder 9, the circulation of air in the outer box 2 is reduced, thereby preventing the fire from spreading upward.

[0047] The following technical features are added on the basis of the first embodiment: A preparation method for high-reliability palladium-plated bonding wire, wherein a fixing frame 28 is fixedly connected to the bottom of an outer box body 2, a lower end face of the fixing frame 28 is fixedly connected to the bottom of the outer box body 2, an upper end face of the fixing frame 28 is fixedly connected to the bottom of a cleaning box 3, and a groove 31 is formed between the outer wall of the fixing frame 28 and the bottom and inner wall of the outer box body 2, a water pump 32 is fixedly connected to the bottom of the groove 31, and through holes for the control rope 21 to pass through are provided on opposite side walls of the fixing frame 28, so that the two ends of the control rope 21 can pass through the bottom of the cleaning box 3 and be fixedly connected to the two ends of the limit plate 19.

[0048] A water pipe 33 is fixedly connected to the bottom of the loading box 6, and the water pump 32 is connected to the water pipe 33 through a connecting pipe 34, and at least two nozzles 35 are fixedly connected to the bottom of the water pipe 33, and the nozzles 35 are located above the strip air inlet holes 12. Support rods are fixedly connected to the four corners of the bottom of the outer box body 2, and a fixing box is fixedly connected to the bottom of the groove 31. The lower surface of the bottom plate of the fixing box is flush with the lower end surface of the support rod. The water pump 32 is fixedly connected to the upper surface of the bottom plate of the fixing box, so that the water in the groove 31 gathers in the fixing box, thereby facilitating the water pump 32 to transport the water squeezed in the groove 31 to the water pipe 33.

[0049] Working principle: electrically connect the wire on the water pump 32 to the power supply, inject water into the groove 31, start the water pump 32, and the water pump 32 transports the water gathered in the fixed box to the water pipe 33 through the connecting pipe 34 and sprays it out in a mist form through the nozzle 35, thereby preventing sparks or flames from entering the outer box body 2 through the strip air inlet hole 12, and further preventing the flames outside the outer box body 2 from entering the outer box body 2 through the strip air inlet hole 12, thereby avoiding the occurrence of fire. At the same time, the water mist sprayed by the nozzle 35 adheres to the dust in the air entering the outer box body 2 through the strip air inlet hole 12, thereby increasing the weight of the dust, facilitating the sedimentation of the dust in the air, and reducing the dust in the air entering the outer box body 2 through the strip air inlet hole 12, thereby preventing the dust in the air from adhering to the side wall of the circular through hole 14, causing the aperture of the circular through hole 14 to become smaller and blocked.

[0050] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A method for preparing a high-reliability palladium-plated bonding wire, characterized in that: The method for preparing the high-reliability palladium-plated bonding wire is implemented by a high-reliability palladium-plated bonding wire preparation device, and the high-reliability palladium-plated bonding wire preparation device comprises: A cleaning mechanism (1), the cleaning mechanism (1) comprising an outer box (2) and a cleaning box (3), the bottom of the cleaning box (3) being elastically connected to a cleaning cotton (4), the side walls of the outer box (2) and the cleaning box (3) being provided with a circular through hole (14) for the bonding wire to pass through, and the opposite side walls of the outer box (2) being provided with a strip-shaped air inlet hole (12), and the outer side wall of the outer box (2) being rotatably connected to a winding wheel (15); A fire extinguishing mechanism (5), the fire extinguishing mechanism (5) comprising a loading box (6) for loading a dry powder fire extinguishing agent, the loading box (6) being fixedly connected to the inner wall of an outer box body (2), and a circular outlet (7) being provided on the side wall of the loading box (6), the circular outlet (7) being covered with a protective film (8), and a fixed cylinder (9) being fixedly connected to the top of the outer box body (2), a fan (10) being fixedly connected to the inner wall of the fixed cylinder (9), and a pipe (11) being fixedly connected to the side wall of the fixed cylinder (9), the lower end of the pipe (11) passing through the side wall of the outer box body (2) and being connected to the loading box (6), and the upper end of the pipe (11) being located on the upper side of the fan (10), and a control mechanism (13) being provided in the fixed cylinder (9).

2. The method for preparing a high-reliability palladium-plated bonding wire according to claim 1, characterized in that: The bottom of the cleaning box (3) is slidably connected to a sliding plate (17) arranged opposite to it, a first spring (18) is fixedly connected to the side wall of the sliding plate (17), one end of the first spring (18) is fixedly connected to the side wall of the cleaning box (3), and the cleaning cotton (4) is fixedly connected to the side wall of the sliding plate (17); Guide pulleys (16) are provided at both ends of the cleaning cotton (4), and the plurality of guide pulleys (16) are rotatably connected to the top and bottom of the cleaning box (3) and are matched with the circular through holes (14), and the plurality of guide pulleys (16) are matched with each other.

3. The method for preparing a high-reliability palladium-plated bonding wire according to claim 2, characterized in that: The control mechanism (13) comprises a limit plate (19), a second spring (20) is fixedly connected to the lower surface of the limit plate (19), the lower end of the second spring (20) is fixedly connected to the top of the loading box (6), a control rope (21) is fixedly connected to the lower surface of the limit plate (19), one end of the control rope (21) is downwardly wound around the lower end surface of the cleaning box (3) and fixedly connected to the end of the limit plate (19); A circular plate (22) is fixedly connected to the upper surface of the limiting plate (19); the circular plate (22) is located directly below the fixed cylinder (9) and cooperates with the fixed cylinder (9).

4. The method for preparing a high-reliability palladium-plated bonding wire according to claim 3, characterized in that: The upper end surface of the circular plate (22) is fixedly connected to a connecting rod (23), the upper end surface of the connecting rod (23) is fixedly connected to a stopper (24), the stopper (24) covers the upper end of the pipe (11), the upper end surface of the stopper (24) is fixedly connected to a cover plate (25), the top of the fixed cylinder (9) is fixedly connected to a circular fixing plate (26), both the circular fixing plate (26) and the cover plate (25) are provided with circular air outlet holes (27), and the circular air outlet holes (27) on the circular fixing plate (26) and the cover plate (25) are staggered and matched with each other.

5. The method for preparing a high-reliability palladium-plated bonding wire according to claim 4, characterized in that: At least two circular air inlet holes (29) are provided on the top of the outer box body (2), the circular air inlet holes (29) are connected to the fixed cylinder (9), and an annular cover plate (30) is provided on the inner wall of the fixed cylinder (9), the annular cover plate (30) is fixedly connected to the connecting rod (23), and the annular cover plate (30) covers the ends of the circular air inlet holes (29).

6. The method for preparing a high-reliability palladium-plated bonding wire according to claim 5, characterized in that: A fixing plate (36) is fixedly connected to the side wall of the outer box body (2), the winding wheel (15) is rotatably connected to the fixing plate (36), and a driving motor (37) is fixedly connected to the fixing plate (36), the output shaft of the driving motor (37) passes through the side wall of the fixing plate (36) and is fixedly connected to the rotating shaft of the winding wheel (15).

7. The method for preparing a high-reliability palladium-plated bonding wire according to claim 6, characterized in that: An upper and lower connecting plate (38) that cooperate with each other is fixedly connected to the outer side wall of the outer box body (2) away from the winding wheel (15), and cutting blades (39) are fixedly connected to the opposite side walls of the two connecting plates (38), and the cutting blades (39) are symmetrically arranged with respect to the circular through hole (14), and at least two conveying rollers (40) are rotatably connected to the connecting plate (38), and the conveying rollers (40) are symmetrically arranged with respect to the circular through hole (14).

8. The method for preparing a high-reliability palladium-plated bonding wire according to claim 7, characterized in that: A fixing frame (28) is fixedly connected to the bottom of the outer box body (2), the lower end surface of the fixing frame (28) is fixedly connected to the bottom of the outer box body (2), the upper end surface of the fixing frame (28) is fixedly connected to the bottom of the washing box (3), and a groove (31) is formed between the outer wall of the fixing frame (28) and the bottom and inner wall of the outer box body (2), and a water pump (32) is fixedly connected to the bottom of the groove (31); The bottom of the loading box (6) is fixedly connected to a water supply pipe (33), the water pump (32) is connected to the water supply pipe (33) via a connecting pipe (34), and the bottom of the water supply pipe (33) is fixedly connected to at least two nozzles (35), the nozzles (35) are located above the strip-shaped air inlet holes (12).

9. The method for preparing a high-reliability palladium-plated bonding wire according to claim 8, characterized in that: The method for preparing the high-reliability palladium-plated bonding wire specifically comprises the following steps: S1: Alcohol is injected into the cleaning box (3), and then the master alloy substrate coated with the photoresist layer is passed through two conveying rollers (40) and the circular through hole (14) into the cleaning box (3), then passed through the guide pulley (16), passed between two cleaning cottons (4), and then passed through the circular through hole (14) and wound and fixed on the winding wheel (15); S2: starting the driving motor (37), the driving motor (37) drives the winding wheel (15) to rotate and wind up the master alloy substrate, and when the master alloy substrate passes through the cutting blade (39), the cutting blade (39) cuts and peels off the photoresist layer on the surface of the master alloy substrate, and when the master alloy substrate passes through the cleaning cotton (4), the master alloy substrate is cleaned by friction between the master alloy substrate and the cleaning cotton (4); S3: starting the fan (10), the fan (10) blowing the air containing alcohol in the outer box (2) to the outside of the outer box (2), so as to reduce the alcohol content in the air in the outer box (2); S4: clean water is then injected into the groove (31), and the water pump (32) is started. The water pump (32) transports the water in the groove (31) to the water delivery pipe (33), and sprays the water in the form of mist through the nozzle (35). When the flame enters the outer box (2) through the strip-shaped air inlet hole (12), the water vapor sprayed from the nozzle (35) extinguishes the flame. S5: When the flame is difficult to extinguish with water and the flame enters the outer box (2), the flame contacts the protective film (8) and the control rope (21), the protective film (8) and the control rope (21) are broken, and the dry powder fire extinguishing agent is sprayed out through the circular outlet (7) to extinguish the flame, while the circular plate (22) covers the lower end of the fixed cylinder (9) to seal the lower end surface of the fixed cylinder (9), thereby preventing the circulation of air in the outer box (2) and facilitating the extinguishing of the flame.

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