Heating and annealing device for bonding wire

Abstract

The utility model provides a heating and annealing device for a bonding wire, which is suitable for the technical field of bonding wire processing, and adopts the scheme that the heating and annealing device for the bonding wire comprises a processing table, a heater main body, a cooler main body, a first assembly shell and a second assembly shell, a heater body and a cooler body are fixedly connected to the upper surface of the machining table at equal intervals, the cooler body is located on one side of the heater body, a first assembling shell and a second assembling shell are symmetrically arranged above the machining table, and the first assembling shell and the second assembling shell are located on the side, away from the cooler body, of the heater body. The driving mechanism and the cleaning mechanism are installed, when the heater main body and the cooler main body are used for heating annealing machining, anti-oxidation treatment is conducted on the bonding wire, and after machining is completed, an oxidation film on the surface of the bonding wire is cleaned; the device is also suitable for the field of bonding wire processing.

Description

Technical Field

[0001] The utility model relates to the technical field of bonding wire processing, in particular to a heating annealing device for bonding wires. Background Art

[0002] Bonding wire is a fine metal wire lead used to connect the input / output bonding points of the chip circuit with the contact points between the lead frame to achieve electrical functions during the assembly process of semiconductor devices and integrated circuits. It is one of the indispensable basic materials in the overall IC packaging material market and has excellent electrical, thermal conductivity, mechanical properties and extremely high chemical stability.

[0003] In the existing bonding wire processing process, nitrogen is used to achieve the anti-oxidation effect during heating and annealing. However, when using electric heaters and electric coolers, it is not convenient to use nitrogen to achieve the anti-oxidation effect, resulting in the bonding wire being unable to perform normal heating and annealing processing, and even damaging the bonding wire.

[0004] Therefore, it is necessary to provide a new heating annealing device for bonding wires to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a heating annealing device for bonding wires.

[0006] The heating annealing device of the bonding wire provided by the utility model comprises: a processing table, a heater body, a cooler body, a first assembly shell and a second assembly shell, the upper surface of the processing table is equidistantly fixedly connected with the heater body and the cooler body, and the cooler body is located on one side of the heater body, the first assembly shell and the second assembly shell are symmetrically arranged above the processing table, and the first assembly shell and the second assembly shell are located on the side of the heater body away from the cooler body; a driving mechanism and a cleaning mechanism, the inner wall of the processing table is fixedly installed with the driving mechanism, and the driving mechanism is located below the first assembly shell and the second assembly shell, and the driving mechanism is started by , the first assembly shell and the second assembly shell are merged, a cleaning mechanism is provided on the side of the cooler body away from the heater body, and the bottom of the cleaning mechanism is fixedly installed on the upper surface of the processing table, the first assembly shell and the second assembly shell are merged by starting the driving mechanism, and an antioxidant is poured into the first assembly shell and the second assembly shell, and the bonding wire that needs to be heated and annealed passes through the first assembly shell and the second assembly shell, and an anti-oxidation film is formed on the surface of the bonding wire. After being heated by the heater body and cooled by the cooler body, the bonding wire will not be oxidized, and the anti-oxidation film on the surface of the bonding wire after heating and annealing can be conveniently cleaned by the cleaning mechanism.

[0007] Preferably, the driving mechanism includes a driving mounting shell, a first motor, a bidirectional screw, a first transmission block and a second transmission block, the inner wall of the processing table is fixedly connected to the driving mounting shell, the inner wall of the driving mounting shell is fixedly installed with the first motor, the output shaft of the first motor is fixedly connected to the bidirectional screw, and the bidirectional screw rotates on the inner wall of the driving mounting shell, the inner wall of the driving mounting shell is symmetrically and slidingly connected with the first transmission block and the second transmission block, the bottom of the second assembly shell is fixedly connected to the top of the first transmission block, and the bottom of the first assembly shell is fixedly connected to the bottom of the second transmission block, the threaded surface of the bidirectional screw is meshed with the inner wall of the circular hole of the first transmission block and the second transmission block, the first motor on the inner wall of the driving mounting shell is started, the output shaft of the first motor drives the bidirectional screw to rotate on the inner wall of the driving mounting shell, the hollow threaded surface of the bidirectional screw contacts the inner wall of the circular hole of the first transmission block and the second transmission block, driving the first transmission block and the second transmission block to approach each other, merging the first assembly shell and the second assembly shell to facilitate the addition of antioxidants.

[0008] Preferably, the cleaning mechanism includes a cleaning mounting shell, a second motor, a first cleaning roller and a second cleaning roller. A cleaning mounting shell is provided on the side of the cooler body away from the heater body, and the bottom of the cleaning mounting shell is fixedly connected to the upper surface of the processing table. The second motor is fixedly installed on the inner wall of the cleaning mounting shell. The first cleaning roller and the second cleaning roller are symmetrically rotatably connected to the inner wall of the cleaning mounting shell, and the first cleaning roller and the second cleaning roller are located above the second motor. The bonding wire after heating and annealing enters the interior of the cleaning mounting shell, and the second motor on the inner wall of the cleaning mounting shell is started to drive the first cleaning roller and the second cleaning roller to rotate, so as to clean the anti-oxidation film on the surface of the bonding wire.

[0009] Preferably, the cleaning mechanism also includes a first transmission gear, a second transmission gear and a transmission belt, the first cleaning roller is fixedly connected to the first transmission gear at the bottom, and the second cleaning roller is fixedly connected to the second transmission gear at the bottom, the second motor output shaft is fixedly connected to the bottom of the first transmission gear, the inner wall of the cleaning mounting shell is provided with a transmission belt, and the surface teeth of the first transmission gear and the second transmission gear are meshed and connected with the inner wall teeth of the transmission belt, the second motor output shaft drives the first transmission gear to rotate, the surface teeth of the first transmission gear contact the inner wall teeth of the transmission belt, driving the surface teeth of the second transmission gear to contact the inner wall teeth of the transmission belt, driving the first cleaning roller and the second cleaning roller to rotate.

[0010] Preferably, guide tubes are symmetrically fixedly connected to the inner walls on both sides of the first assembly shell, and the bonding wire is placed in the guide tubes to guide the bonding wire, which facilitates the bonding wire to pass through the first assembly shell and forms an oxide film on the surface of the bonding wire, thereby improving the practicality of the first assembly shell.

[0011] Preferably, the inner wall of the first assembly shell is fixedly connected to an extrusion shell, the inner wall of the extrusion shell is slidably connected to an extrusion block, the top inner wall of the first assembly shell is rotatably connected to a one-way screw, and the threaded surface of the one-way screw is meshed with the inner wall of the circular hole of the extrusion block. When the antioxidant inside the first assembly shell and the second assembly shell continues to decrease, the one-way screw is rotated, and the threaded surface of the one-way screw contacts the inner wall of the circular hole of the extrusion block to move the extrusion block out of the extrusion shell, and the extruded bonding wire of the extrusion shell moves downward, which facilitates the bonding wire to fully contact the antioxidant.

[0012] Preferably, the processing table is made of stainless steel, which has high physical strength and stable chemical properties. When the processing table is heated and annealed, it is prevented from being squeezed or collided, and the surface of the processing table will not be easily worn or dented, thereby extending the service life of the processing table.

[0013] Compared with the related art, the heating and annealing device for bonding wire provided by the utility model has the following beneficial effects:

[0014] The utility model provides a heating annealing device for bonding wires:

[0015] 1. By installing a driving mechanism and a cleaning mechanism, the bonding wire is subjected to an anti-oxidation treatment when the heater body and the cooler body are used for heating and annealing processing. After the processing is completed, the oxide film on the surface of the bonding wire is cleaned.

[0016] 2. An extrusion shell is fixedly connected to the inner wall of the first assembly shell, and an extrusion block is slidably connected to the inner wall of the extrusion shell. A one-way screw is rotatably connected to the inner wall of the top of the first assembly shell, and the threaded surface of the one-way screw is meshed with the inner wall of the circular hole of the extrusion block. When the antioxidant inside the first assembly shell and the second assembly shell continues to decrease, the one-way screw is rotated, and the threaded surface of the one-way screw contacts the inner wall of the circular hole of the extrusion block to move the extrusion block out of the extrusion shell, and the extruded bonding wire of the extrusion shell moves downward, so that the bonding wire can fully contact the antioxidant. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The overall structural diagram provided by the utility model;

[0018] Figure 2 A schematic diagram of the split structure provided by the utility model;

[0019] Figure 3 A schematic diagram of the driving mechanism structure provided by the utility model;

[0020] Figure 4 This is a schematic diagram of the first assembly shell structure provided by the utility model;

[0021] Figure 5 This is a schematic diagram of the cleaning mechanism structure provided by the utility model.

[0022] Numbers in the figure: 1, processing table; 2, heater body; 3, cooler body; 4, first assembly shell; 5, second assembly shell; 6, driving mechanism; 61, driving mounting shell; 62, first motor; 63, bidirectional screw; 64, first transmission block; 65, second transmission block; 7, cleaning mechanism; 71, cleaning mounting shell; 72, second motor; 73, first cleaning roller; 74, second cleaning roller; 75, first transmission gear; 76, second transmission gear; 77, transmission belt; 8, guide tube; 9, extrusion shell; 10, extrusion block; 11, unidirectional screw. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The heating annealing device for bonding wire comprises: a processing table 1, a heater body 2, a cooler body 3, a first assembly shell 4 and a second assembly shell 5, the upper surface of the processing table 1 is equidistantly fixedly connected with the heater body 2 and the cooler body 3, and the cooler body 3 is located on one side of the heater body 2, the first assembly shell 4 and the second assembly shell 5 are symmetrically arranged above the processing table 1, and the first assembly shell 4 and the second assembly shell 5 are located on the side of the heater body 2 away from the cooler body 3; a driving mechanism 6 and a cleaning mechanism 7, the inner wall of the processing table 1 is fixedly installed with the driving mechanism 6, and the driving mechanism 6 is located below the first assembly shell 4 and the second assembly shell 5, and the driving mechanism 6 is started The first assembly shell 4 and the second assembly shell 5 are combined, and a cleaning mechanism 7 is provided on the side of the cooler body 3 away from the heater body 2, and the bottom of the cleaning mechanism 7 is fixedly installed on the upper surface of the processing table 1. By starting the driving mechanism 6, the first assembly shell 4 and the second assembly shell 5 are combined, and an antioxidant is poured into the first assembly shell 4 and the second assembly shell 5. The bonding wire that needs to be heated and annealed passes through the first assembly shell 4 and the second assembly shell 5, and an anti-oxidation film is formed on the surface of the bonding wire. After being heated by the heater body 2 and cooled by the cooler body 3, the bonding wire will not be oxidized. The cleaning mechanism 7 can conveniently clean the anti-oxidation film on the surface of the bonding wire after heating and annealing.

[0025] Embodiment 1:

[0026] In the specific implementation process, Figure 2 and Figure 3As shown, the driving mechanism 6 includes a driving mounting shell 61, a first motor 62, a bidirectional screw 63, a first transmission block 64 and a second transmission block 65. The inner wall of the processing table 1 is fixedly connected with the driving mounting shell 61, and the inner wall of the driving mounting shell 61 is fixedly installed with the first motor 62. The output shaft of the first motor 62 is fixedly connected with the bidirectional screw 63, and the bidirectional screw 63 rotates on the inner wall of the driving mounting shell 61. The inner wall of the driving mounting shell 61 is symmetrically slidably connected with the first transmission block 64 and the second transmission block 65. The bottom of the second assembly shell 5 is fixedly connected to the top of the first transmission block 64. The bottom of the first assembly shell 4 is fixedly connected with the bottom of the second transmission block 65, the threaded surface of the bidirectional screw rod 63 is meshed with the inner wall of the circular hole of the first transmission block 64 and the second transmission block 65, the first motor 62 on the inner wall of the driving mounting shell 61 is started, and the output shaft of the first motor 62 drives the bidirectional screw rod 63 to rotate on the inner wall of the driving mounting shell 61, and the hollow threaded surface of the bidirectional screw rod 63 contacts the inner wall of the circular hole of the first transmission block 64 and the second transmission block 65, driving the first transmission block 64 and the second transmission block 65 to approach each other, and the first assembly shell 4 and the second assembly shell 5 are merged to facilitate the antioxidant.

[0027] refer to Figure 1 and Figure 5 As shown, the cleaning mechanism 7 includes a cleaning mounting shell 71, a second motor 72, a first cleaning roller 73 and a second cleaning roller 74. The cleaning mounting shell 71 is provided on the side of the cooler body 3 away from the heater body 2, and the bottom of the cleaning mounting shell 71 is fixedly connected to the upper surface of the processing table 1, and the second motor 72 is fixedly installed on the inner wall of the cleaning mounting shell 71. The first cleaning roller 73 and the second cleaning roller 74 are symmetrically rotatably connected to the inner wall of the cleaning mounting shell 71, and the first cleaning roller 73 and the second cleaning roller 74 are located above the second motor 72. The bonding wire after heating and annealing enters the interior of the cleaning mounting shell 71, and the second motor 72 on the inner wall of the cleaning mounting shell 71 is started to drive the first cleaning roller 73 and the second cleaning roller 74 to rotate, so as to clean the anti-oxidation film on the surface of the bonding wire.

[0028] refer to Figure 5As shown, the cleaning mechanism 7 also includes a first transmission gear 75, a second transmission gear 76 and a transmission belt 77. The first cleaning roller 73 is fixedly connected to the bottom with the first transmission gear 75, and the second cleaning roller 74 is fixedly connected to the bottom with the second transmission gear 76. The output shaft of the second motor 72 is fixedly connected to the bottom of the first transmission gear 75. The inner wall of the cleaning mounting shell 71 is provided with a transmission belt 77, and the surface teeth of the first transmission gear 75 and the second transmission gear 76 are meshed and connected with the inner wall teeth of the transmission belt 77. The output shaft of the second motor 72 drives the first transmission gear 75 to rotate, and the surface teeth of the first transmission gear 75 contact the inner wall teeth of the transmission belt 77, driving the surface teeth of the second transmission gear 76 to contact the inner wall teeth of the transmission belt 77, driving the first cleaning roller 73 and the second cleaning roller 74 to rotate.

[0029] refer to Figure 2 and Figure 3 As shown, the inner walls on both sides of the first assembly shell 4 are symmetrically fixedly connected with guide tubes 8. The bonding wire is placed inside the guide tubes 8 to guide the bonding wire, which makes it convenient to pass the bonding wire through the first assembly shell 4 and to form an oxide film on the surface of the bonding wire, thereby improving the practicality of the first assembly shell 4.

[0030] refer to Figure 4 As shown, the inner wall of the first assembly shell 4 is fixedly connected to an extrusion shell 9, and the inner wall of the extrusion shell 9 is slidably connected to an extrusion block 10. The top inner wall of the first assembly shell 4 is rotatably connected to a one-way screw 11, and the threaded surface of the one-way screw 11 is meshed with the inner wall of the circular hole of the extrusion block 10. When the antioxidant inside the first assembly shell 4 and the second assembly shell 5 continues to decrease, the one-way screw 11 is rotated, and the threaded surface of the one-way screw 11 contacts the inner wall of the circular hole of the extrusion block 10, so that the extrusion block 10 is moved out of the extrusion shell 9, and the extrusion shell 9 extrudes the bonding wire downward, so that the bonding wire can fully contact the antioxidant.

[0031] Embodiment 2:

[0032] refer to Figure 1 and Figure 2 As shown, the processing table 1 is made of stainless steel material. Stainless steel material has high physical strength and stable chemical properties. When the processing table 1 is heated and annealed, it is prevented from being squeezed or collided, and the surface of the processing table 1 will not be easily worn or dented, thereby extending the service life of the processing table 1.

[0033] Working principle: When the heating and annealing device for bonding wire of the utility model is used, the first assembly shell 4 and the second assembly shell 5 are merged by starting the driving mechanism 6, and the first motor 62 of the inner wall of the driving installation shell 61 is started. The output shaft of the first motor 62 drives the bidirectional screw rod 63 to rotate on the inner wall of the driving installation shell 61. The hollow thread surface of the bidirectional screw rod 63 contacts the inner wall of the circular hole of the first transmission block 64 and the second transmission block 65, driving the first transmission block 64 and the second transmission block 65 to approach each other, merging the first assembly shell 4 and the second assembly shell 5, and conveniently pouring the antioxidant into the first assembly shell 4 and the second assembly shell 5. The bonding wire that needs to be heated and annealed passes through the first assembly shell 4 and the second assembly shell 5. An anti-oxidation film is formed on the surface. After being heated by the heater main body 2 and cooled by the cooler main body 3, the bonding wire will not be oxidized. The cleaning mechanism 7 can conveniently clean the anti-oxidation film on the surface of the bonding wire after heating and annealing. The bonding wire after heating and annealing enters the interior of the cleaning installation shell 71, and the second motor 72 on the inner wall of the cleaning installation shell 71 is started to drive the first cleaning roller 73 and the second cleaning roller 74 to rotate, so as to clean the anti-oxidation film on the surface of the bonding wire. The output shaft of the second motor 72 drives the first transmission gear 75 to rotate, and the surface teeth of the first transmission gear 75 contact the inner wall teeth of the transmission belt 77, driving the surface teeth of the second transmission gear 76 to contact the inner wall teeth of the transmission belt 77, driving the first cleaning roller 73 and the second cleaning roller 74 to rotate.

[0034] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heating annealing device for bonding wire, characterized in that: include: A processing table (1), a heater body (2), a cooler body (3), a first assembly shell (4) and a second assembly shell (5), wherein the upper surface of the processing table (1) is equidistantly fixedly connected with the heater body (2) and the cooler body (3), and the cooler body (3) is located on one side of the heater body (2); the first assembly shell (4) and the second assembly shell (5) are symmetrically arranged above the processing table (1), and the first assembly shell (4) and the second assembly shell (5) are located on a side of the heater body (2) away from the cooler body (3); A driving mechanism (6) and a cleaning mechanism (7), wherein the driving mechanism (6) is fixedly mounted on the inner wall of the processing table (1), and the driving mechanism (6) is located below the first assembly shell (4) and the second assembly shell (5); the first assembly shell (4) and the second assembly shell (5) are merged by starting the driving mechanism (6); a cleaning mechanism (7) is arranged on a side of the cooler body (3) away from the heater body (2), and the bottom of the cleaning mechanism (7) is fixedly mounted on the upper surface of the processing table (1).

2. The heating annealing device for bonding wire according to claim 1, characterized in that: The driving mechanism (6) comprises a driving mounting shell (61), a first motor (62), a bidirectional screw rod (63), a first transmission block (64) and a second transmission block (65); the inner wall of the processing table (1) is fixedly connected to the driving mounting shell (61); the inner wall of the driving mounting shell (61) is fixedly mounted with the first motor (62); the output shaft of the first motor (62) is fixedly connected to the bidirectional screw rod (63); the bidirectional screw rod (63) rotates on the inner wall of the driving mounting shell (61); the inner wall of the driving mounting shell (61) is symmetrically slidably connected to the first transmission block (64) and the second transmission block (65); the bottom of the second assembly shell (5) is fixedly connected to the top of the first transmission block (64); the bottom of the first assembly shell (4) is fixedly connected to the bottom of the second transmission block (65); the threaded surface of the bidirectional screw rod (63) is meshedly connected to the inner walls of the circular holes of the first transmission block (64) and the second transmission block (65).

3. The heating annealing device for bonding wire according to claim 1, characterized in that: The cleaning mechanism (7) comprises a cleaning installation shell (71), a second motor (72), a first cleaning roller (73) and a second cleaning roller (74); a cleaning installation shell (71) is provided on a side of the cooler body (3) away from the heater body (2); the bottom of the cleaning installation shell (71) is fixedly connected to the upper surface of the processing table (1); the second motor (72) is fixedly installed on the inner wall of the cleaning installation shell (71); the first cleaning roller (73) and the second cleaning roller (74) are symmetrically rotatably connected to the inner wall of the cleaning installation shell (71); and the first cleaning roller (73) and the second cleaning roller (74) are located above the second motor (72).

4. The heating annealing device for bonding wire according to claim 3, characterized in that: The cleaning mechanism (7) further comprises a first transmission gear (75), a second transmission gear (76) and a transmission belt (77); the first cleaning roller (73) is fixedly connected to the bottom of the first transmission gear (75); the second cleaning roller (74) is fixedly connected to the bottom of the second transmission gear (76); the output shaft of the second motor (72) is fixedly connected to the bottom of the first transmission gear (75); the inner wall of the cleaning mounting shell (71) is provided with a transmission belt (77); and the surface teeth of the first transmission gear (75) and the second transmission gear (76) are meshedly connected with the inner wall teeth of the transmission belt (77).

5. The heating annealing device for bonding wire according to claim 1, characterized in that: Guide tubes (8) are symmetrically and fixedly connected to the inner walls on both sides of the first assembly shell (4).

6. The heating annealing device for bonding wire according to claim 1, characterized in that: The inner wall of the first assembly shell (4) is fixedly connected to an extrusion shell (9), the inner wall of the extrusion shell (9) is slidably connected to an extrusion block (10), the top inner wall of the first assembly shell (4) is rotatably connected to a one-way screw rod (11), and the threaded surface of the one-way screw rod (11) is meshingly connected to the inner wall of the circular hole of the extrusion block (10).

7. The heating annealing device for bonding wire according to claim 1, characterized in that: The processing table (1) is made of stainless steel.

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