Packaging assembly and method for chip packaging

Abstract

The present invention relates to the field of chip manufacturing technology, and discloses a chip packaging packaging component, including a fixing frame, a fixing plate installed on the top of the fixing frame, and a driving shaft fixedly assembled on the top of the fixing plate. The method for using the chip packaging packaging component can adjust the distance between the driving brackets under the action of a driving motor and a driving gear, so that the distance between two adjacent driving brackets corresponds to the position of the contact pins on the chip, so as to achieve the welding of all the pins on the outer wall of one side of the chip on the welding track at the same time, thereby reducing the use frequency of a single porcelain nozzle clamp, better extending the service life of the porcelain nozzle clamp, and under the action of multiple welding porcelain nozzle clamps, it is possible to complete all the welding on one side of the chip at one time, and it is also possible to control a single porcelain nozzle clamp separately, so that the porcelain nozzle clamp can better match the welding of chips with multiple different spacings, and complete the welding work more efficiently.

Description

Technical Field

[0001] The present invention relates to the technical field of chip manufacturing, and in particular to a packaging component and method for chip packaging. Background Art

[0002] The shell where the semiconductor integrated circuit chip is installed plays the role of placing, fixing, sealing, protecting the chip and enhancing the electrical and thermal performance. It is also a bridge between the internal world of the chip and the external circuit. The contacts on the chip are connected to the pins of the package shell with wires, and these pins are connected to other devices through wires on the printed circuit board. Therefore, packaging plays an important role for CPU and other LSI integrated circuits. Among them, welding the chip is a more important step in the process of chip packaging. Gold wire welding is often used to connect the pins of the chip with the pins of the package base.

[0003] When in use, traditional welding equipment uses ultrasonic gold wire welding, but the equipment only has one porcelain nozzle clamp for wire laying welding. When performing large-scale multi-pin welding, the welding speed and efficiency will be at a disadvantage, and in high-frequency welding work with only one porcelain nozzle clamp, the service life of the porcelain nozzle clamp will be greatly reduced, thereby failing to meet the high-intensity and high-frequency welding requirements of the equipment. When welding, traditional welding equipment needs to use ultrasound to heat the gold wire to melt it and weld it to the outer wall of the chip, but traditional equipment lacks protection and cooling devices between the solder joints and the chip. Once the temperature of the solder joints is too high, it will have a serious impact on the chip. In addition, during the welding process, desoldering will occur between the contact pins and the gold wires, and the two ends of the gold wires are not tightly connected to the pins of the chip or the package base. At this time, traditional equipment cannot properly handle the desoldering contact pins. Summary of the invention

[0004] The present invention provides a packaging component and method for chip packaging, which solves the problems raised by the above background technology.

[0005] The present invention provides the following technical solution: a packaging assembly for chip packaging, comprising a fixing frame, characterized in that: a fixing plate is installed on the top of the fixing frame, a driving shaft is fixedly installed on the top of the fixing plate, a support arm is movably sleeved on the outer wall of the driving shaft, a driven gear ring is installed on the outer wall of the driving shaft, a No. 1 driving motor is fixedly installed in the inner cavity of the driving shaft, a No. 1 driving gear is fixedly installed on the power output shaft of the No. 1 driving motor, and a welding assembly is installed on the inner wall of the fixing frame;

[0006] The welding assembly comprises a welding track, a repair welding track is installed on the outer side of the welding track, a tooth plate is provided on the top of the welding track, a driving bracket is movably sleeved on the outer wall of the welding track, and a repair welding bracket is movably sleeved on the outer wall of the repair welding track;

[0007] The inner cavity of the driving bracket is equipped with an air delivery pipe, and the outer wall of the air delivery pipe is fixedly equipped with an auxiliary pipe;

[0008] An auxiliary rod is fixedly mounted on the inner wall of the auxiliary tube, a driving slider is movably mounted on the outer wall of the auxiliary rod, a driving spring is movably mounted on the outer wall of the auxiliary rod, a blocking rod is movably mounted on the inner cavity of the auxiliary tube, a connecting groove is provided in the inner cavity of the blocking rod, a connecting rope is fixedly mounted on the outer wall of the blocking rod, a No. 2 driving motor is fixedly mounted on the outer wall of the driving bracket, a No. 2 driving gear is fixedly mounted on the power output shaft of the No. 2 driving motor, and a connecting socket is provided on the top of the driving bracket.

[0009] As a preferred technical solution of the present invention: the top of the driving bracket is fixedly equipped with an auxiliary wheel, the bottom of the driving bracket is fixedly equipped with a welding porcelain nozzle clamp, the inner cavity of the welding porcelain nozzle clamp is installed with a welding wire, the outer wall of the driving bracket is fixedly equipped with a fixed cylinder, the inner cavity of the fixed cylinder is provided with a sliding inner groove, the outer wall of the fixed cylinder is provided with an auxiliary movable groove, the inner cavity of the fixed cylinder is movably sleeved with a sliding push rod, and the outer wall of the sliding push rod is fixedly equipped with a piston ring.

[0010] As a preferred technical solution of the present invention: the outer wall of the sliding push rod is fixedly equipped with a protective cover, the outer wall of the fixed cylinder is fixedly equipped with a support plate, the outer wall of the support plate is installed with a tension spring, and the outer wall of the auxiliary tube is fixedly equipped with a connecting elbow.

[0011] As a preferred technical solution of the present invention: the outer wall of the repair welding bracket is fixedly equipped with a No. 3 driving motor, the power output shaft of the No. 3 driving motor is fixedly equipped with a No. 3 driving gear, the bottom of the repair welding bracket is fixedly equipped with a pneumatic cylinder, the inner cavity of the pneumatic cylinder is movably connected with a pneumatic push rod, the top of the pneumatic push rod is fixedly equipped with a piston plate, the outer wall of the pneumatic push rod is fixedly equipped with an auxiliary bottom plate, the top of the auxiliary bottom plate is fixedly equipped with a collecting bin, and the top of the collecting bin is equipped with an exhaust pipe.

[0012] As a preferred technical solution of the present invention: an auxiliary frame is fixedly installed at the bottom of the inner cavity of the collection bin, a No. 4 driving motor is fixedly installed on the outer wall of the auxiliary frame, a clamping wheel is fixedly installed on the power output shaft of the No. 4 driving motor, an adsorption bin is fixedly installed at the bottom of the auxiliary bottom plate, a conical bottom cylinder is fixedly installed at the bottom of the inner cavity of the collection bin, a pull plate is fixedly installed on the outer wall of the pneumatic cylinder, a return spring is fixedly installed on the outer wall of the pull plate, a repair welding clamp is installed on the outer wall of the repair welding clamp, a cooling cover is installed on the outer wall of the repair welding clamp, the outer wall of the No. 1 driving gear is meshed with the outer wall of the driven gear ring, and the outer walls of the No. 2 driving gear and the No. 3 driving gear are respectively The inner walls of the toothed plates at the top of the welding track and the repair welding track are meshed with each other, and an air supply pipe is installed on the top of the connecting jack and the pneumatic cylinder. The exhaust pipe is a corrugated hose, and an exhaust device is installed on the end of the exhaust pipe away from the collecting bin. The end of the outer wall of the connecting elbow close to the outer wall of the protective cover is a corrugated hose. The equipment installed on the outer wall of the repair welding bracket away from the No. 3 driving motor is communicated with the equipment on the outer wall of the driving bracket. The two ends of the driving spring are respectively connected to the outer wall of the driving slider and the inner wall of the auxiliary pipe. The inner wall diameter of the connecting elbow and the air pipe is smaller than the inner wall diameter of the connecting groove. The connecting rope is an elastic rope, and the maximum stretching length of the connecting rope is connected to the height to which the protective cover is lowered.

[0013] A method for using a chip packaging assembly comprises the following steps:

[0014] S1: First, observe the number of contact pins, and judge the number and spacing of solder joints according to the number of contact pins. At this time, the distance between two adjacent drive brackets can be adjusted according to the arrangement spacing of the solder joints, or the welding operation between a single drive bracket can be controlled by the device body. A single drive bracket can perform a separate welding work. A single drive bracket is used to achieve precise welding of solder joints, so that the spacing between two adjacent drive brackets corresponds to the spacing between solder joints. When adjusting the distance between two adjacent drive brackets, the No. 2 drive motor is started, and the No. 2 drive gear is rotated under the drive of the No. 2 drive motor, so that the No. 2 drive gear is meshed with the welding track to make the drive bracket move along the outer wall of the welding track, thereby adjusting the distance between the drive brackets, so that the welding porcelain nozzle clamp at the bottom of the drive bracket corresponds to the position of the solder joint;

[0015] S2: At this time, the contact pins can be welded through the welding assembly, and gas is supplied to the inner cavity of the fixed cylinder through the connecting jack. The sliding push rod and the piston ring can move inward along the inner wall of the fixed cylinder under the action of the gas. Then, during the movement of the sliding push rod, the protective cover can move downward along the outer wall of the fixed cylinder, so that the outer wall of the protective cover can completely cover the chip during the continuous downward movement of the protective cover. During the descent of the protective cover, the outer wall of the protective cover will pull the connecting rope, and under the action of the connecting rope, the blocking rod will move in the inner cavity of the auxiliary tube. When the connecting groove on the outer wall of the blocking rod moves to the inner cavity of the gas supply pipe and the connecting elbow, the dry ice gas in the gas supply pipe will enter the inner cavity of the connecting elbow from the gas supply pipe, and enter the inner cavity of the protective cover along the connecting elbow, thereby reducing the temperature in the inner cavity of the protective cover. In this process, the welding porcelain nozzle clamp will use welding wire to weld the welding point, and the equipment can complete all the welding on one side of the square chip at one time, so that a square chip only needs four weldings to be completed;

[0016] S3: If the contact pins of one side of the chip are desoldered, the No. 1 driving gear is driven to rotate by the No. 1 driving motor, so that the No. 1 driving gear drives the driven gear ring and the driving shaft to rotate, so that the fixing frame is rotated horizontally as a whole, so that the repair soldering bracket rotates and moves to the top of the chip desoldering side;

[0017] S4: By supplying air to the inner cavity of the pneumatic cylinder, after the air is fully supplied in the inner cavity of the pneumatic cylinder, the pneumatic push rod and the pneumatic cylinder will be pushed to move, so that the pneumatic push rod moves downward along the inner wall of the pneumatic cylinder, so that the adsorption chamber at the bottom of the pneumatic cylinder moves to the top of the desoldering contact point, and then through the exhaust pipe and the exhaust device installed on the outer wall of the exhaust pipe, the air in the inner cavity of the adsorption chamber will flow upward under the action of the exhaust device, and under the action of wind force, the desoldering gold wire will enter the inner cavity of the adsorption chamber , and the outer wall of the gold wire passes through the inner cavity of the conical bottom cylinder and contacts the outer wall of the clamping wheel. At this time, the No. 4 driving motor is started, so that the No. 4 driving motors on both sides drive the clamping wheels to rotate, and the clamping wheels on both sides rotate in opposite directions. At this time, the gold wire can be pulled upward under the action of the clamping wheel to break the gold wire, and under the continuous action of the clamping wheel, the gold wire enters the inner cavity of the collection bin, and under the action of the conical bottom cylinder installed in the inner cavity of the collection bin, the gold wire cannot fall from the inner cavity of the collection bin;

[0018] S5: Through the repair soldering clamps set on the outer wall of the repair soldering bracket, the desoldered contact pins are repair soldered again using the same steps and tools as the driving bracket welding, and the soldering points are quickly cooled down under the action of the cooling hood, so as to complete the welding process in the chip packaging process better and faster.

[0019] The present invention has the following beneficial effects:

[0020] 1. The method for using the chip packaging assembly comprises a driving bracket arranged on the outer wall of a welding track, and a driving motor and a driving gear arranged on the outer wall of the driving bracket. Under the action of the driving motor and the driving gear, the distance between the driving brackets can be adjusted, so that the distance between two adjacent driving brackets corresponds to the position of the contact pins on the chip, so that multiple driving brackets on the welding track can weld all the pins on the outer wall of one side of the chip at the same time, thereby reducing the use frequency of a single porcelain nozzle clamp and better extending the service life of the porcelain nozzle clamp. Under the action of multiple welding porcelain nozzle clamps, all welding on one side of the chip can be completed at one time, and a single porcelain nozzle clamp can be controlled separately, so that the porcelain nozzle clamp can better match the welding of chips with various different spacings and complete the welding work more efficiently.

[0021] 2. The chip packaging assembly uses a protective cover arranged on the outer wall of the welding porcelain nozzle clamp and a connecting elbow and an air supply pipe installed on the top of the protective cover to pneumatically drive the protective cover to move downward. The welding work is carried out after the protective cover moves downward. After the protective cover is completely lowered, the connecting elbow and the connecting pipe can be connected only when the connecting rope is pulled, so that dry ice gas can be introduced into the inner cavity of the protective cover, thereby achieving the effect of quickly cooling the welding point. After the welding point is cooled, the air supply to the inner cavity of the fixed cylinder is stopped. At this time, the protective cover will quickly return to its original state under the action of the tension spring, and the sealing rod will also be reset under the action of the driving spring to complete a welding work, thereby avoiding damage to the chip around the welding point due to excessive temperature during welding.

[0022] 3. The chip packaging packaging component has a repair welding track arranged on the outer wall of the fixing frame and a repair welding bracket arranged on the outer wall of the repair welding track. After welding on one side of the chip is completed, if desoldering occurs on one side, the fixing frame can be rotated 180 degrees under the action of the No. 1 driving gear and the No. 1 driving motor. At this time, the repair welding bracket will move to the top of the desoldering position. At this time, air can be supplied to the inner cavity of the pneumatic cylinder to move the pneumatic push rod in the inner cavity of the pneumatic cylinder, so that the adsorption bin is moved to the top of the desoldering point. At this time, the air is exhausted outwards through the exhaust device on the outer wall of the exhaust pipe. At this time, the air in the adsorption bin will circulate upward. At this time, the gold wire with desoldering at one end will move upward along the wind force, and then be pulled upward under the action of the clamping wheel to achieve the removal of the gold wire. At this time, welding can be performed again through the welding device on the repair welding bracket, and the repair welding bracket can move along the repair welding track under the action of the No. 3 driving motor and the No. 3 driving gear, so that all the solder joints on one side of the chip can be covered, thereby achieving better repair welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0025] Figure 3 It is a schematic diagram of the cross-sectional structure of the support arm of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the driving bracket of the present invention;

[0027] Figure 5 This is a schematic diagram of the protective cover structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the cross-sectional structure of the auxiliary pipe of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the repair welding bracket of the present invention;

[0030] Figure 8 This is a schematic diagram of the repair welding clamp structure of the present invention;

[0031] Fig. 9 This is a schematic diagram of the adsorption bin structure of the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the pneumatic cylinder of the present invention;

[0033] Fig.11 This is a schematic diagram of the collection bin structure of the present invention.

[0034] In the figure: 1, fixed frame; 2, fixed plate; 3, support arm; 4, driving shaft; 5, driven gear ring; 6, No. 1 driving gear; 7, No. 1 driving motor; 8, welding assembly;

[0035] 81. Welding track; 82. Repairing welding track; 83. Tooth plate; 84. Driving bracket;

[0036] 841, auxiliary wheel; 842, welding line; 843, welding nozzle clamp; 844, fixed cylinder; 845, sliding inner groove; 846, auxiliary moving groove; 847, sliding push rod; 848, piston ring; 849, protective cover;

[0037] 8410, support plate; 8411, tension spring; 8412, gas pipe; 8413, connecting elbow; 8414, auxiliary pipe; 8415, auxiliary rod; 8416, driving slider; 8417, driving spring; 8418, blocking rod; 8419, connecting groove; 8420, connecting rope; 8421, No. 2 driving motor; 8422, No. 2 driving gear; 8423, connecting jack;

[0038] 85. Repair welding of bracket;

[0039] 851. Drive motor No. 3; 852. Drive gear No. 3; 853. Pneumatic cylinder; 854. Pneumatic push rod; 855. Piston plate; 856. Auxiliary bottom plate; 857. Collecting bin; 858. Exhaust pipe; 859. Auxiliary frame; 8510. Drive motor No. 4; 8511. Clamping wheel; 8512. Adsorption bin; 8513. Conical bottom cylinder; 8514. Pull plate; 8515. Return spring; 8516. Repair welding clamp; 8517. Cooling hood. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-11 A packaging component for chip packaging includes a fixing frame 1, a fixing plate 2 is installed on the top of the fixing frame 1, a driving shaft 4 is fixedly installed on the top of the fixing plate 2, a support arm 3 is movably sleeved on the outer wall of the driving shaft 4, a driven gear ring 5 is installed on the outer wall of the driving shaft 4, a No. 1 driving motor 7 is fixedly installed in the inner cavity of the driving shaft 4, a No. 1 driving gear 6 is fixedly installed on the power output shaft of the No. 1 driving motor 7, and a welding component 8 is installed on the inner wall of the fixing frame 1.

[0042] In the above structure, through the support arm 3 rotatably connected on the outer wall of the driving shaft 4, and the driven gear ring 5 and the No. 1 driving gear 6 and the No. 1 driving motor 7 installed in the inner cavity of the support arm 3, when the equipment is working, the outer wall of the support arm 3 is connected to the equipment, and at this time, by starting the No. 1 driving motor 7, the No. 1 driving gear 6 can drive the driven gear ring 5 to rotate under the action of the No. 1 driving motor 7, so that the fixed frame 1 and the fixed plate 2 are deflected at an angle as a whole under the action of the driven gear ring 5, thereby realizing the left and right flipping of the fixed frame 1.

[0043] In a preferred embodiment: the welding assembly 8 includes a welding track 81, a repair welding track 82 is installed on the outer side of the welding track 81, a tooth plate 83 is opened on the top of the welding track 81, a driving bracket 84 is movably connected to the outer wall of the welding track 81, and a repair welding bracket 85 is movably connected to the outer wall of the repair welding track 82.

[0044] In the above structure, by installing the welding track 81 and the repair welding track 82 on both sides of the outer wall of the fixed frame 1, and the repair welding bracket 85 opened on the top of the welding track 81 and the repair welding track 82, when it is necessary to adjust the position of the driving bracket 84 and the repair welding bracket 85, it is only necessary to drive the driving bracket 84 and the repair welding bracket 85 respectively under the action of the No. 2 driving motor 8421 and the No. 3 driving motor 851, so as to adjust the position of the driving bracket 84 and the repair welding bracket 85.

[0045] In a preferred embodiment: the top of the driving bracket 84 is fixedly equipped with an auxiliary wheel 841, the bottom of the driving bracket 84 is fixedly equipped with a welding porcelain nozzle clamp 843, the inner cavity of the welding porcelain nozzle clamp 843 is installed with a welding line 842, the outer wall of the driving bracket 84 is fixedly equipped with a fixed cylinder 844, the inner cavity of the fixed cylinder 844 is provided with a sliding inner groove 845, the outer wall of the fixed cylinder 844 is provided with an auxiliary movable groove 846, the inner cavity of the fixed cylinder 844 is movably sleeved with a sliding push rod 847, and the outer wall of the sliding push rod 847 is fixedly equipped with a piston ring 848.

[0046] In the above structure, by setting a fixed cylinder 844 at the bottom of the driving bracket 84, and setting a sliding push rod 847 and a piston ring 848 in the inner cavity of the fixed cylinder 844, an air pipe is inserted into the inner cavity of the connecting jack 8423, and the movement of the sliding push rod 847 is driven by supplying air to the inner cavity of the fixed cylinder 844, so that the sliding push rod 847 can move downward under the action of pneumatic force, so that the protective cover 849 can move downward under the action of the sliding push rod 847, thereby realizing the sealing of the bottom welding point of the welding porcelain nozzle clamp 843, so that the welding point can be covered in the inner cavity of the protective cover 849 on both sides during the welding process.

[0047] In a preferred embodiment: the outer wall of the sliding push rod 847 is fixedly equipped with a protective cover 849, the outer wall of the fixed cylinder 844 is fixedly equipped with a support plate 8410, the outer wall of the support plate 8410 is installed with a tension spring 8411, the inner cavity of the driving bracket 84 is installed with an air pipe 8412, the outer wall of the air pipe 8412 is fixedly equipped with an auxiliary pipe 8414, and the outer wall of the auxiliary pipe 8414 is fixedly equipped with a connecting elbow 8413.

[0048] In the above structure, through the tension spring 8411 set on the outer wall of the support plate 8410, when the sliding push rod 847 and the piston ring 848 move downward along the inner cavity of the sliding inner groove 845 under the action of pneumatic pressure, since the two ends of the tension spring 8411 are respectively connected to the support plate 8410 and the top of the protective cover 849, the tension spring 8411 can be stretched at this time. Once the welding porcelain nozzle clamp 843 completes the welding of a welding point, the air supply to the inner cavity of the fixed cylinder 844 is stopped. At this time, the sliding push rod 847 and the protective cover 849 will be reset under the action of the tension spring 8411, so that the protective cover 849 moves upward to the outer wall of the welding porcelain nozzle clamp 843.

[0049] In a preferred embodiment: the inner wall of the auxiliary tube 8414 is fixedly equipped with an auxiliary rod 8415, the outer wall of the auxiliary rod 8415 is movably connected with a driving slider 8416, the outer wall of the auxiliary rod 8415 is movably connected with a driving spring 8417, the inner cavity of the auxiliary tube 8414 is movably connected with a blocking rod 8418, the inner cavity of the blocking rod 8418 is provided with a connecting groove 8419, the outer wall of the blocking rod 8418 is fixedly equipped with a connecting rope 8420, the outer wall of the driving bracket 84 is fixedly equipped with a No. 2 driving motor 8421, the power output shaft of the No. 2 driving motor 8421 is fixedly equipped with a No. 2 driving gear 8422, and the top of the driving bracket 84 is provided with a connecting socket 8423.

[0050] In the above structure, through the air pipe 8412 set in the inner cavity of the driving bracket 84, and the auxiliary pipe 8414 set on the outer wall of the air pipe 8412, since the two ends of the connecting rope 8420 are respectively connected to the outer walls of the protective cover 849 and the blocking rod 8418, once the protective cover 849 moves downward along the outer wall of the welding porcelain nozzle clamp 843 under the action of pneumatics, the connecting rope 8420 on the top of the protective cover 849 will pull the blocking rod 8418 outward, and when the connecting groove 8419 on the outer wall of the blocking rod 8418 is aligned with the inner cavity of the connecting bend 8413 and the air pipe 8412, the dry ice gas in the inner cavity of the air pipe 8412 will pass through the blocking rod 8418 and enter the connecting bend 8413, and enter the inner cavity of the protective cover 849 through the connecting bend 8413, thereby realizing rapid cooling of the welding point.

[0051] In a preferred embodiment: the outer wall of the repair welding bracket 85 is fixedly equipped with a No. 3 driving motor 851, the power output shaft of the No. 3 driving motor 851 is fixedly equipped with a No. 3 driving gear 852, the bottom of the repair welding bracket 85 is fixedly equipped with a pneumatic cylinder 853, the inner cavity of the pneumatic cylinder 853 is movably connected with a pneumatic push rod 854, the top of the pneumatic push rod 854 is fixedly equipped with a piston plate 855, the outer wall of the pneumatic push rod 854 is fixedly equipped with an auxiliary bottom plate 856, the top of the auxiliary bottom plate 856 is fixedly equipped with a collection bin 857, and the top of the collection bin 857 is equipped with an exhaust pipe 858.

[0052] In the above structure, by providing air into the inner cavity of the pneumatic cylinder 853 provided on the outer wall of the repair welding bracket 85, the pneumatic push rod 854 is pushed downward by the action of pneumatic force. In the process of the downward movement of the pneumatic push rod 854, the auxiliary base plate 856 is driven to move downward. At this time, the collection bin 857 and the adsorption bin 8512 will also move with the movement of the pneumatic push rod 854. At this time, the adsorption bin 8512 will cover the gold wire in the inner cavity. At this time, air is drawn upward through the exhaust pipe 858, so that the air in the inner cavity of the adsorption bin 8512 flows upward. At this time, due to the small mass of the gold wire, it will move upward under the action of wind force, so that the end of the gold wire that is desoldered contacts the outer wall of the clamping wheel 8511.

[0053] In a preferred embodiment: the bottom of the inner cavity of the collecting bin 857 is fixedly equipped with an auxiliary frame 859, the outer wall of the auxiliary frame 859 is fixedly equipped with a No. 4 driving motor 8510, the power output shaft of the No. 4 driving motor 8510 is fixedly equipped with a clamping wheel 8511, the bottom of the auxiliary bottom plate 856 is fixedly equipped with an adsorption bin 8512, the bottom of the inner cavity of the collecting bin 857 is fixedly equipped with a conical bottom cylinder 8513, the outer wall of the pneumatic cylinder 853 is fixedly equipped with a pull plate 8514, the outer wall of the pull plate 8514 is fixedly equipped with a return spring 8515, the outer wall of the repair welding bracket 85 is installed with a repair welding clamp 8516, and the outer wall of the repair welding clamp 8516 is installed with a cooling hood 8517.

[0054] In the above structure, through the clamping wheel 8511 set in the inner cavity of the collecting bin 857, when the gold wire enters the inner cavity of the adsorption bin 8512 under the action of wind, the air is continuously drawn upward at this time, so that the desoldering end of the gold wire passes through the inner cavity of the conical bottom cylinder 8513, and the outer wall of the gold wire contacts the outer wall of the clamping wheel 8511. At this time, the clamping wheel 8511 rotates under the action of the No. 4 driving motor 8510, so that the rotation directions of the clamping wheels 8511 on both sides are opposite. At this time, the gold wire can be pulled upward under the action of the clamping wheels 8511 on both sides, so that the gold wire is broken. At this time, the gold wire will fall into the inner cavity of the collecting bin 857. Since the outer wall of the conical bottom cylinder 8513 is conical, the gold wire cannot easily fall from the inner cavity of the collecting bin 857, thereby realizing the removal and collection of the desoldering gold wire.

[0055] In a preferred embodiment: the outer wall of the No. 1 driving gear 6 is meshed with the outer wall of the driven gear ring 5, the outer walls of the No. 2 driving gear 8422 and the No. 3 driving gear 852 are respectively meshed with the inner walls of the toothed plate 83 at the top of the welding track 81 and the repair welding track 82, the connecting jack 8423 and the top of the pneumatic cylinder 853 are both equipped with an air supply pipe, an exhaust pipe 858 corrugated hose, and an exhaust device is installed at the end of the exhaust pipe 858 away from the collecting bin 857, the end of the outer wall of the connecting elbow 8413 close to the outer wall of the protective cover 849 is a corrugated hose, and the equipment installed on the outer wall of the repair welding bracket 85 away from the No. 3 driving motor 851 is communicated with the equipment on the outer wall of the driving bracket 84.

[0056] In the above structure, the tooth plate 83 is opened at the top of the welding track 81 and the repair welding track 82, so that the driving bracket 84 and the repair welding bracket 85 arranged on the outer wall of the welding track 81 and the repair welding track 82 can move forward and backward along the outer wall of the welding track 81 and the repair welding track 82 under the action of the No. 2 driving gear 8422 and the No. 3 driving gear 852 respectively, and the No. 1 driving motor 7 and the No. 1 driving gear 6 arranged in the inner cavity of the driving shaft 4 can respectively realize the driving action of the driven gear ring 5 and the driving shaft 4 under the action of the No. 1 driving motor 7 and the No. 1 driving gear 6, so that the fixing frame 1 can rotate with the driving shaft 4 as the rotating axis, and the No. 1 driving motor 7 and the No. 1 driving gear 6 are connected to the connecting jack 8423 and the pneumatic cylinder. The air supply pipe set at the top of 853 supplies air to the inner cavities of the fixed cylinder 844 and the pneumatic cylinder 853 respectively, thereby driving the sliding push rod 847 and the piston ring 848 in the inner cavity of the fixed cylinder 844, so that the protective cover 849 can move downward along the outer wall of the welding porcelain nozzle clamp 843, thereby realizing the sealing of the welding point, and by supplying air to the inner cavity of the pneumatic cylinder 853, the pneumatic push rod 854 is driven, so that the pneumatic push rod 854 drives the auxiliary base plate 856, the adsorption bin 8512 and the collection bin 857 to move downward, so that the desoldering gold wire enters the inner cavity of the adsorption bin 8512, thereby completing the removal and collection of the desoldering gold wire.

[0057] In a preferred embodiment: the two ends of the driving spring 8417 are respectively connected to the outer wall of the driving slider 8416 and the inner wall of the auxiliary tube 8414, the inner wall diameter of the connecting bend 8413 and the air pipe 8412 is smaller than the inner wall diameter of the connecting groove 8419, the connecting rope 8420 is an elastic rope, and the maximum stretching length of the connecting rope 8420 is connected to the height to which the protective cover 849 is lowered.

[0058] In the above structure, by means of the blocking rod 8418 arranged in the inner cavity of the auxiliary tube 8414, and the driving slider 8416 and the driving spring 8417 arranged on the outer wall of the blocking rod 8418, the blocking rod 8418 can enter the deepest part of the inner cavity of the auxiliary tube 8414 under the action of the driving spring 8417. Once the protective cover 849 moves downward under the action of the sliding push rod 847 and the piston ring 848, since the outer wall of the connecting rope 8420 is connected to the top of the protective cover 849, the blocking rod 8418 will be pulled to move under the action of the connecting rope 8420, so that the connecting groove 8419 in the inner cavity of the blocking rod 8418 connects the inner cavity of the gas pipe 8412 and the connecting bend 8413, so that dry ice gas is released into the inner cavity of the protective cover 849 under the action of the gas pipe 8412 and the connecting bend 8413, thereby reducing the temperature in the inner cavity of the protective cover 849 and achieving rapid cooling of the welding point.

[0059] A method for using a chip packaging assembly comprises the following steps:

[0060] S1: First, observe the number of contact pins, and judge the number and spacing of solder joints according to the number of contact pins. At this time, the distance between two adjacent drive brackets 84 can be adjusted according to the arrangement spacing of the solder joints, or the welding operation between a single drive bracket 84 can be controlled by the device body. A single drive bracket 84 can perform a separate welding work. A single drive bracket 84 is used to achieve precise welding of solder joints, so that the spacing between two adjacent drive brackets 84 corresponds to the spacing of solder joints. When adjusting the distance between two adjacent drive brackets 84, the No. 2 drive motor 8421 is started, and the No. 2 drive gear 8422 is rotated under the drive of the No. 2 drive motor 8421, so that the No. 2 drive gear 8422 is meshed with the welding track 81, so that the drive bracket 84 moves along the outer wall of the welding track 81, thereby adjusting the distance between the drive brackets 84, so that the welding porcelain nozzle clamp 843 at the bottom of the drive bracket 84 corresponds to the position of the solder joint;

[0061] S2: At this time, the contact pins can be welded through the welding assembly 8, and gas is supplied to the inner cavity of the fixed cylinder 844 through the connecting jack 8423. The sliding push rod 847 and the piston ring 848 can move inward along the inner wall of the fixed cylinder 844 under the action of the gas. Then, during the movement of the sliding push rod 847, the protective cover 849 can move downward along the outer wall of the fixed cylinder 844, so that during the continuous downward movement of the protective cover 849, the outer wall of the protective cover 849 can completely cover the chip. During the descent of the protective cover 849, the outer wall of the protective cover 849 will pull the connecting rope 8420, and under the action of the connecting rope 8420, the blocking rod 8418 moves in the inner cavity of the auxiliary tube 8414. When the connecting groove 8419 on the outer wall of the blocking rod 8418 moves into the inner cavity of the gas pipe 8412 and the connecting elbow 8413, the dry ice gas in the gas pipe 8412 will enter the inner cavity of the connecting elbow 8413 from the gas pipe 8412, and enter the inner cavity of the protective cover 849 along the connecting elbow 8413, thereby reducing the temperature in the inner cavity of the protective cover 849. In this process, the welding porcelain nozzle clamp 843 will use the welding wire 842 to weld the welding point, and the equipment can complete all the welding on one side of the square chip at one time, so that a square chip can be completed in four weldings.

[0062] S3: If the chip contact pins on one side are desoldered, the first drive motor 7 drives the first drive gear 6 to rotate, so that the first drive gear 6 drives the driven gear ring 5 and the drive shaft 4 to rotate, so that the fixing frame 1 rotates horizontally as a whole, so that the repair welding bracket 85 rotates and moves to the top of the chip desoldering side;

[0063] S4: By supplying air to the inner cavity of the pneumatic cylinder 853, after the inner cavity of the pneumatic cylinder 853 is fully supplied with air, the pneumatic push rod 854 and the pneumatic cylinder 853 are pushed to move, so that the pneumatic push rod 854 moves downward along the inner wall of the pneumatic cylinder 853, so that the adsorption chamber 8512 at the bottom of the pneumatic cylinder 853 moves to the top of the desoldering contact point, and then through the exhaust pipe 858 and the exhaust device installed on the outer wall of the exhaust pipe 858, the air in the inner cavity of the adsorption chamber 8512 is caused to flow upward under the action of the exhaust device, and under the action of the wind force, the desoldering gold wire enters the inner cavity of the adsorption chamber 8512, and makes After the outer wall of the gold wire passes through the inner cavity of the conical bottom cylinder 8513 and contacts the outer wall of the clamping wheel 8511, the No. 4 driving motor 8510 is started at this time, so that the No. 4 driving motors 8510 on both sides drive the clamping wheel 8511 to rotate, and the clamping wheels 8511 on both sides rotate in opposite directions. At this time, the gold wire can be pulled upward under the action of the clamping wheel 8511 to break the gold wire, and under the continuous action of the clamping wheel 8511, the gold wire enters the inner cavity of the collection bin 857, and under the action of the conical bottom cylinder 8513 installed in the inner cavity of the collection bin 857, the gold wire cannot fall from the inner cavity of the collection bin 857;

[0064] S5: Through the repair soldering clamp 8516 set on the outer wall of the repair soldering bracket 85, the desoldered contact pins are repaired again using the same steps and tools as the driving bracket 84, and the soldering points are quickly cooled down under the action of the cooling cover 8517, so as to complete the welding process in the chip packaging process better and faster.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chip packaging assembly, comprising a fixing frame (1), characterized in that: A fixing plate (2) is installed on the top of the fixing frame (1), a driving shaft (4) is fixedly mounted on the top of the fixing plate (2), a support arm (3) is movably sleeved on the outer wall of the driving shaft (4), a driven gear ring (5) is installed on the outer wall of the driving shaft (4), a No. 1 driving motor (7) is fixedly mounted on the inner cavity of the driving shaft (4), a No. 1 driving gear (6) is fixedly mounted on the power output shaft of the No. 1 driving motor (7), and a welding assembly (8) is installed on the inner wall of the fixing frame (1); The welding assembly (8) comprises a welding track (81), a repair welding track (82) is installed on the outer side of the welding track (81), a tooth plate (83) is provided on the top of the welding track (81), a driving bracket (84) is movably sleeved on the outer wall of the welding track (81), and a repair welding bracket (85) is movably sleeved on the outer wall of the repair welding track (82); An air delivery pipe (8412) is installed in the inner cavity of the driving bracket (84), and an auxiliary pipe (8414) is fixedly mounted on the outer wall of the air delivery pipe (8412); The inner wall of the auxiliary tube (8414) is fixedly mounted with an auxiliary rod (8415), the outer wall of the auxiliary rod (8415) is movably sleeved with a driving slider (8416), the outer wall of the auxiliary rod (8415) is movably sleeved with a driving spring (8417), the inner cavity of the auxiliary tube (8414) is movably sleeved with a blocking rod (8418), the inner cavity of the blocking rod (8418) is provided with a connecting groove (8419), the outer wall of the blocking rod (8418) is fixedly mounted with a connecting rope (8420), the outer wall of the driving bracket (84) is fixedly mounted with a No. 2 driving motor (8421), the power output shaft of the No. 2 driving motor (8421) is fixedly mounted with a No. 2 driving gear (8422), and the top of the driving bracket (84) is provided with a connecting socket (8423); The top of the driving bracket (84) is fixedly equipped with an auxiliary wheel (841), the bottom of the driving bracket (84) is fixedly equipped with a welding porcelain nozzle clamp (843), the inner cavity of the welding porcelain nozzle clamp (843) is installed with a welding line (842), the outer wall of the driving bracket (84) is fixedly equipped with a fixing cylinder (844), the inner cavity of the fixing cylinder (844) is provided with a sliding inner groove (845), the outer wall of the fixing cylinder (844) is provided with an auxiliary moving groove (846), the inner cavity of the fixing cylinder (844) is movably sleeved with a sliding push rod (847), and the outer wall of the sliding push rod (847) is fixedly equipped with a piston ring (848); The outer wall of the sliding push rod (847) is fixedly equipped with a protective cover (849), the outer wall of the fixed cylinder (844) is fixedly equipped with a support plate (8410), the outer wall of the support plate (8410) is installed with a tension spring (8411), and the outer wall of the auxiliary tube (8414) is fixedly equipped with a connecting elbow (8413).

2. The chip packaging assembly according to claim 1, characterized in that: The outer wall of the repair welding bracket (85) is fixedly equipped with a No. 3 driving motor (851), the power output shaft of the No. 3 driving motor (851) is fixedly equipped with a No. 3 driving gear (852), the bottom of the repair welding bracket (85) is fixedly equipped with a pneumatic cylinder (853), the inner cavity of the pneumatic cylinder (853) is movably sleeved with a pneumatic push rod (854), the top of the pneumatic push rod (854) is fixedly equipped with a piston plate (855), the outer wall of the pneumatic push rod (854) is fixedly equipped with an auxiliary bottom plate (856), the top of the auxiliary bottom plate (856) is fixedly equipped with a collection bin (857), and the top of the collection bin (857) is equipped with an exhaust pipe (858).

3. The chip packaging assembly according to claim 2, characterized in that: The bottom of the inner cavity of the collection bin (857) is fixedly equipped with an auxiliary frame (859), the outer wall of the auxiliary frame (859) is fixedly equipped with a fourth drive motor (8510), the power output shaft of the fourth drive motor (8510) is fixedly equipped with a clamping wheel (8511), the bottom of the auxiliary bottom plate (856) is fixedly equipped with an adsorption bin (8512), the bottom of the inner cavity of the collection bin (857) is fixedly equipped with a conical bottom cylinder (8513), and the pneumatic cylinder (853) The outer wall of the welding support (85) is fixedly equipped with a pull plate (8514), the outer wall of the pull plate (8514) is fixedly equipped with a return spring (8515), the outer wall of the welding support (85) is installed with a welding clamp (8516), the outer wall of the welding clamp (8516) is installed with a cooling cover (8517), the outer wall of the first driving gear (6) is meshed with the outer wall of the driven gear ring (5), and the outer walls of the second driving gear (8422) and the third driving gear (852) are respectively meshed with the welding track ( The inner walls of the toothed plate (83) at the top of the welding rail (81) and the welding rail (82) are meshed with each other, the connecting socket (8423) and the top of the pneumatic cylinder (853) are both equipped with air supply pipes, the exhaust pipe (858) is a corrugated hose, and an exhaust device is installed at one end of the exhaust pipe (858) away from the collecting bin (857), the outer wall of the connecting elbow (8413) is a corrugated hose at one end close to the outer wall of the protective cover (849), and the welding bracket (85) is away from the third drive motor (851). The device installed on the outer wall of the end is connected to the device on the outer wall of the driving bracket (84), the two ends of the driving spring (8417) are respectively connected to the outer wall of the driving slider (8416) and the inner wall of the auxiliary pipe (8414), the inner wall diameters of the connecting elbow (8413) and the air delivery pipe (8412) are smaller than the inner wall diameter of the connecting groove (8419), and the connecting rope (8420) is an elastic rope, and the maximum stretching length of the connecting rope (8420) is connected to the height of the protective cover (849) being lowered.

4. The method for using a chip packaging assembly according to claim 3, characterized in that: The following steps are involved: S1: First, the number of contact pins is observed, and the number and spacing of the welding points are determined according to the number of contact pins. At this time, the distance between two adjacent driving brackets (84) can be adjusted according to the arrangement spacing of the welding points, or the welding operation between a single driving bracket (84) can be controlled by the device body. A single driving bracket (84) can perform a separate welding operation. The driving bracket (84) is used alone to achieve precise welding of the welding points, so that the spacing between the two adjacent driving brackets (84) corresponds to the spacing between the welding points. When adjusting the distance between the two adjacent driving brackets (84), the second driving motor (8421) is started, and the second driving gear (8422) is driven by the second driving motor (8421) to rotate, so that the second driving gear (8422) is meshed with the welding track (81) to make the driving bracket (84) move along the outer wall of the welding track (81), thereby achieving the adjustment of the distance between the driving brackets (84), so that the welding porcelain nozzle clamp (843) at the bottom of the driving bracket (84) corresponds to the position of the welding point; S2: At this time, the contact pins can be welded through the welding assembly (8), and gas is supplied to the inner cavity of the fixed cylinder (844) through the connecting jack (8423). Under the action of the gas, the sliding push rod (847) and the piston ring (848) can move inward along the inner wall of the fixed cylinder (844), and then the protective cover (849) can move downward along the outer wall of the fixed cylinder (844) during the movement of the sliding push rod (847). During the continuous downward movement of the protective cover (849), the outer wall of the protective cover (849) can completely cover the chip. During the descent of the protective cover (849), the outer wall of the protective cover (849) will pull the connecting rope (8420), and under the action of the connecting rope (8420), the sealing The rod (8418) moves in the inner cavity of the auxiliary tube (8414). When the connecting groove (8419) on the outer wall of the blocking rod (8418) moves into the inner cavities of the gas pipe (8412) and the connecting elbow (8413), the dry ice gas in the gas pipe (8412) enters the inner cavity of the connecting elbow (8413) from the gas pipe (8412) and enters the inner cavity of the protective cover (849) along the connecting elbow (8413), thereby reducing the temperature in the inner cavity of the protective cover (849). During this process, the welding porcelain nozzle clamp (843) uses the welding wire (842) to weld the welding point, and the device can complete all the welding on one side of the square chip at one time, so that a square chip can be completely completed with only four weldings. S3: If the contact pins of one side of the chip are desoldered, the first drive motor (7) drives the first drive gear (6) to rotate, so that the first drive gear (6) drives the driven gear ring (5) and the drive shaft (4) to rotate, thereby causing the fixing frame (1) to rotate horizontally as a whole, so that the repair soldering bracket (85) rotates and moves to the top of the chip desoldering side; S4: By supplying air to the inner cavity of the pneumatic cylinder (853), after the inner cavity of the pneumatic cylinder (853) is fully supplied with air, the pneumatic push rod (854) and the pneumatic cylinder (853) are pushed to move, so that the pneumatic push rod (854) moves downward along the inner wall of the pneumatic cylinder (853), thereby causing the adsorption chamber (8512) at the bottom of the pneumatic cylinder (853) to move to the top of the desoldering contact point, and then through the exhaust pipe (858) and the exhaust device installed on the outer wall of the exhaust pipe (858), the air in the inner cavity of the adsorption chamber (8512) is caused to flow upward under the action of the exhaust device, and under the action of the wind force, the desoldering gold wire enters the inner cavity of the adsorption chamber (8512) and causes the desoldering gold wire to enter the inner cavity of the adsorption chamber (8512) and cause the desoldering gold wire to enter the inner cavity of the adsorption chamber (8512). After the outer wall of the gold wire passes through the inner cavity of the conical bottom cylinder (8513), it contacts the outer wall of the clamping wheel (8511). At this time, the No. 4 driving motor (8510) is started, so that the No. 4 driving motors (8510) on both sides drive the clamping wheel (8511) to rotate, and the clamping wheels (8511) on both sides rotate in opposite directions. At this time, the gold wire can be pulled upward under the action of the clamping wheel (8511), so that the gold wire breaks, and under the continuous action of the clamping wheel (8511), the gold wire enters the inner cavity of the collection bin (857), and under the action of the conical bottom cylinder (8513) installed in the inner cavity of the collection bin (857), the gold wire cannot fall from the inner cavity of the collection bin (857); S5: The desoldered contact pins are re-soldered by using a repair soldering clip (8516) provided on the outer wall of the repair soldering bracket (85) and the same steps and tools as those for welding the driving bracket (84), and the soldering points are quickly cooled down under the action of the cooling hood (8517), thereby completing the welding process in the chip packaging process better and faster.

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