Roller assembly and winding type thin film flip chip packaging device

Abstract

The embodiment of the utility model provides a roller assembly and a tape-winding type chip-on-film packaging device, the roller assembly is used for being fixed on the tape-winding type chip-on-film packaging device, and the roller assembly comprises a support, a first roller and a second roller; the support comprises a first rolling shaft and a second rolling shaft, and the first rolling shaft is lower than the second rolling wheel; the first roller is inserted into the first rolling shaft, the second roller is inserted into the second rolling shaft, and the first roller has a preset weight; when the protective belt is rolled by a product, the protective belt sequentially bypasses the top of the second roller and the bottom of the first roller to enter the product collecting reel, and the first roller stabilizes the tension of the protective belt through the preset weight of the first roller. The tension fluctuation when the motor just rotates is reduced, looseness and dislocation caused by pulling of the protective belt are avoided, the problem of poor editing of a product in coiling of a reel is solved, the problem of plastic foreign matter generated by friction of the protective belt is reduced, and the problem of low efficiency caused by foreign matter in a Final Test electrical test is reduced.

Description

TECHNICAL FIELD

[0001] The embodiment of the present disclosure belongs to the technical field of thin film chip on film packaging, and particularly relates to a roller assembly and a thin film chip on film packaging device. BACKGROUND

[0002] In the existing thin film chip on film packaging device, a material receiving reel rotates counterclockwise to wind up products and a protective tape during production. The protective tape prevents quality abnormalities caused by the mutual contact (friction) of the wound products. During the operation, the electromagnetic clutch device of the machine allows the protective tape to rotate clockwise, so that the protective tape generates a tightening tension (tension).

[0003] Due to the characteristics of the thin film chip on film packaging, the outer diameter of the wound products on the material receiving reel increases, and the protective tape on the material releasing reel becomes less (the outer diameter becomes smaller). When the outer diameter of the products is greater than that of the protective tape, the tension (tension) of the protective tape driven by the rotation of the material receiving reel becomes more unstable, resulting in poor winding of the products (poor editing). The appearance of the wound abnormal products and the protective tape is loose, and the products and the protective tape are misaligned. Because of the misalignment of the protective tape, the bumps are in contact with the product lines, which is easy to rub off plastic foreign matter, resulting in low electrical test efficiency (repeated test due to foreign matter problem).

[0004] In view of the above problems, it is necessary to provide a roller assembly and a thin film chip on film packaging device which are reasonable in design and can effectively improve the above problems. CONTENT OF THE INVENTION

[0005] The embodiment of the present disclosure aims to at least solve one of the technical problems existing in the prior art, and provides a roller assembly and a thin film chip on film packaging device.

[0006] One aspect of the embodiment of the present disclosure provides a roller assembly for fixing to a thin film chip on film packaging device, the roller assembly comprising a bracket, a first roller and a second roller;

[0007] for fixing to a thin film chip on film packaging device, the roller assembly comprising a bracket, a first roller and a second roller;

[0008] The bracket comprises a first roller shaft and a second roller shaft, and the height of the first roller shaft is lower than that of the second roller;

[0009] The first roller is inserted into the first roller shaft, and the second roller is inserted into the second roller shaft, wherein the first roller has a preset weight; wherein,

[0010] In the process of winding the product and the protection tape, the protection tape passes over the top of the second roller and the bottom of the first roller in sequence and enters the product winding reel, and the first roller stabilizes the tension of the protection tape by the preset weight.

[0011] Optionally, the preset weight of the first roller ranges from 150g to 350g.

[0012] Optionally, the weight of the first roller ranges from 250g to 350g.

[0013] Optionally, the first roller comprises two first roller bodies and a first connecting shaft connecting the two first roller bodies.

[0014] The first roller body is provided with a first stepped structure on the side facing the first connecting shaft.

[0015] Optionally, the first stepped structure comprises a plurality of steps, and the diameters of the plurality of steps decrease from the first roller body to the first connecting shaft.

[0016] Optionally, the second roller is in a cylindrical shape.

[0017] Optionally, the second roller comprises two second roller bodies and a second connecting shaft connecting the two second roller bodies.

[0018] The second roller body is provided with a second stepped structure on the side facing the second connecting shaft.

[0019] Another aspect of the embodiments of the present disclosure provides a tape-wound film flip chip packaging device, which comprises a protection tape unwinding reel, a product winding reel and the roller set assembly described above.

[0020] The protection tape unwinding reel is located below the product winding reel, and the roller set assembly is arranged between the protection tape unwinding reel and the product winding reel.

[0021] The product winding reel is used for winding the product and the protection tape.

[0022] In the process of winding the product and the protection tape, the protection tape passes over the top of the second roller and the bottom of the first roller in sequence and enters the product winding reel, and the first roller stabilizes the tension of the protection tape by the preset weight.

[0023] Optionally, the metal clamping plate is further included.

[0024] The metal clamping plate is arranged on the product winding reel to increase the weight of the product winding reel.

[0025] Optionally, the outer diameter of the metal clamping plate ranges from 450mm to 500mm.

[0026] The roller assembly and the tape-wound film flip chip packaging device of the embodiments of the present disclosure, the roller assembly comprises a bracket, a first roller and a second roller; the bracket comprises a first roller shaft and a second roller shaft, the height of the first roller shaft is lower than the height of the second roller; the first roller is inserted into the first roller shaft, and the second roller is inserted into the second roller shaft, and the first roller has a preset weight. When the product is wound with the protection tape, the protection tape passes over the top of the second roller and the bottom of the first roller in sequence and enters the product material winding reel, the first roller stabilizes the tension of the protection tape through its preset weight, reduces the tension fluctuation when the motor is just rotated, avoids the loosening and misplacement caused by pulling the protection tape, overcomes the editing problem of the product winding on the reel, reduces the plastic foreign matter problem caused by the friction of the protection tape, and reduces the problem of low efficiency caused by foreign matter in the Final Test electrical test. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic diagram of a roller assembly in an embodiment of the present disclosure;

[0028] Figure 2 FIG. 2 is a structural schematic diagram of a first roller in an embodiment of the present disclosure;

[0029] Figure 3 FIG. 3 is a structural schematic diagram of a second roller in an embodiment of the present disclosure;

[0030] Figure 4 FIG. 4 is a structural schematic diagram of a second roller in another embodiment of the present disclosure;

[0031] Figure 5 FIG. 5 is a structural schematic diagram of a tape-wound film flip chip packaging device in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] In order for those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below in combination with the drawings and specific embodiments.

[0033] As shown in FIG. 1, an aspect of the embodiments of the present disclosure provides a roller assembly 100 for being fixed to a tape-wound film flip chip packaging device 200, the roller assembly 100 comprises a bracket 110, a first roller 120 and a second roller 130. Figure 1

[0034] The bracket 110 comprises a first roller shaft 111 and a second roller shaft 112, the height of the first roller shaft 111 is lower than the height of the second roller shaft 112.

[0035] The first roller 120 is inserted into the first roller shaft 111, and the second roller 130 is inserted into the second roller shaft 112, wherein the first roller 120 has a preset weight. ​

[0036] When the product is being wound with the protection tape, the protection tape passes over the top of the second roller 130 and the bottom of the first roller 120 in sequence and enters the product winding reel, and the first roller 120 stabilizes the tension of the protection tape by its preset weight.

[0037] Specifically, when the winding motor starts to rotate at a constant speed from a stop, the product makes the linear speed of the protection tape increase (the instantaneous tension of the protection tape increases) due to the increase of the outer diameter; when the winding motor stops, the tension of the protection tape returns to the tension value set by the electromagnetic clutch. The tension value of the protection tape set by the electromagnetic clutch is adjusted to a value that can match the preset weight of the first roller 120, and the position at which the protection tape can pull the first roller 120 with the preset weight to the lowermost point is the recommended tension value of the electromagnetic clutch. When the protection tape is being wound, the instantaneous tension of the protection tape can pull the first roller 120 with the preset weight to rise, so as to buffer the tension of the protection tape.

[0038] The roller assembly of the embodiment of the present disclosure can stabilize the tension of the protection tape by setting the preset weight of the first roller, reduce the tension fluctuation when the motor starts to rotate, avoid the protection tape from being pulled to cause the slack and misalignment, overcome the editing problem of the product being wound on the reel, reduce the plastic foreign matter problem caused by the friction of the protection tape, and reduce the efficiency problem of the Final Test caused by the foreign matter.

[0039] For example, the preset weight of the first roller 120 needs to match the tension parameter of the electromagnetic clutch. If the preset weight of the first roller 120 is too light, the effect is not good, and if the preset weight is too heavy, the product appearance will have indentations. In the embodiment, the preset weight of the first roller 120 ranges from 150 g to 350 g. Further, the preset weight of the first roller 120 ranges from 250 g to 350 g. Preferably, in the embodiment, the preset weight of the first roller 120 is 250 g, which can effectively overcome the product winding problem and the plastic foreign matter problem caused by friction.

[0040] For example, as shown in Figure 2 The first roller 120 includes two first roller bodies 121 and a first connecting shaft 122 connecting the two first roller bodies 121. The side of the first roller body 121 facing the first connecting shaft 122 is provided with a first stepped structure 123.

[0041] In the embodiment, the first roller is provided with the first stepped structure, which can limit the position of the protection tape being wound and prevent the left-right deviation of the movement, thereby reducing the editing problem.

[0042] For example, as shown in Figure 2As shown, the first stepped structure 123 includes multiple steps, the diameter of which decreases from the first wheel body 121 toward the first connecting shaft 122, in order to better limit the position of the protective belt winding.

[0043] For example, such as Figure 3 As shown, in one embodiment, the second roller 130 is cylindrical.

[0044] For example, such as Figure 4 As shown, in another embodiment, the second roller 130 includes a second wheel body 131 and a second connecting shaft 132 connecting the two second wheel bodies 131. The second wheel body 131 has a second stepped structure 133 on the side facing the second connecting shaft 132. That is, the structure of the second roller 130 is similar to that of the first roller 120, but the weight of the second roller 130 is not limited.

[0045] It should be noted that this embodiment does not specifically limit the structure of the second roller 130. The second roller 130 may have the same structure as the first roller 120 or may have a different structure, and can be selected according to actual needs.

[0046] like Figure 5 As shown, another aspect of this disclosure provides a tape-and-roll thin-film flip-chip packaging device 200, including a protective tape unwinding reel 210, a product take-up reel 220, and the roller assembly 100 described above.

[0047] The protective tape unwinding reel 210 is located below the product take-up reel 220, and the roller assembly 110 is disposed between the protective tape unwinding reel 210 and the product take-up reel 220.

[0048] Product take-up reel 220 is used to take up product A and protective tape B.

[0049] When product A is winding up protective tape B, protective tape B passes over the top of the second roller 130 and the bottom of the first roller 120 in sequence and enters the product take-up reel 220. The first roller 120 stabilizes the tension of protective tape B by its own preset weight.

[0050] It should be noted that the specific structural features of the roller assembly 100 have been described in detail above, and will not be repeated here.

[0051] The roll-to-roll thin-film flip-chip packaging apparatus of this disclosure adopts the roller assembly described above. It is a low-cost improvement solution that utilizes existing space without significantly modifying the machine, effectively overcoming the problems of poor product winding and friction plastic foreign matter, thereby improving the efficiency of electrical testing.

[0052] For example, such as Figure 5As shown, the roll tape film CCL packaging device 200 further comprises a metal clamp plate 230 arranged on the product take-up reel 220 to increase the weight of the product take-up reel 220.

[0053] In this embodiment, the product take-up reel 220 is made of ABS plastic, which is a soft material. The use of the metal clamp plate 230 can effectively prevent the product take-up reel 220 from expanding and deforming, thereby reducing the take-up editing failure.

[0054] For example, the outer diameter of the metal clamp plate 230 ranges from 450 mm to 500 mm. Preferably, in this embodiment, the metal clamp plate 230 is circular, and the outer diameter of the metal clamp plate 230 is 450 mm, which can better prevent the product take-up reel 220 from expanding and deforming, thereby reducing the take-up editing failure.

[0055] In this embodiment, taking the FT (Final Test) test efficiency UPD (daily output) as an example, the roll tape film CCL packaging device of the present embodiment has an improvement of 2 Kea to 3 Kea.

[0056] It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present embodiment, but the present embodiment is not limited thereto. Various modifications and improvements can be made by those skilled in the art without departing from the spirit and essence of the present embodiment, and these modifications and improvements are also considered within the protection scope of the present embodiment.

Claims

1. A roller assembly, characterized by The application discloses a roller assembly for fixing a tape-shaped thin film chip on film packaging device, which comprises a support, a first roller and a second roller. The support comprises a first roller shaft and a second roller shaft, and the height of the first roller shaft is lower than that of the second roller shaft. The first roller is inserted into the first roller shaft, and the second roller is inserted into the second roller shaft. The first roller has a preset weight.

2. The roller assembly of claim 1, wherein, When the product is wound with the protective tape, the protective tape passes over the top of the second roller and the bottom of the first roller in sequence and enters a product material winding reel.

3. The roller assembly of claim 2, wherein, The preset weight of the first roller ranges from 150 g to 350 g.

4. The roller assembly of any one of claims 1 to 3, wherein, The preset weight of the first roller ranges from 250 g to 350 g. The first roller comprises two first roller bodies and a first connecting shaft connecting the two first roller bodies.

5. The roller assembly of claim 4, wherein, The first roller body is provided with a first stepped structure on the side facing the first connecting shaft.

6. The roller assembly of any one of claims 1 to 3, wherein, The first stepped structure comprises a plurality of steps, and the diameters of the steps decrease from the first roller body to the first connecting shaft.

7. The roller assembly of any one of claims 1 to 3, wherein, The second roller is in a cylindrical shape. The second roller comprises two second roller bodies and a second connecting shaft connecting the two second roller bodies.

8. A tape automated thin film flip chip package, comprising: The second roller body is provided with a second stepped structure on the side facing the second connecting shaft. The roller assembly comprises a protective tape material feeding reel, a product material winding reel and the roller assembly according to any one of claims 1 to 6. The protective tape material feeding reel is located below the product material winding reel, and the roller assembly is arranged between the protective tape material feeding reel and the product material winding reel. The product material winding reel is used for winding the product and the protective tape.

9. The tape film CCO package device of claim 8, wherein, When the product is wound with the protective tape, the protective tape passes over the top of the second roller and the bottom of the first roller in sequence and enters the product material winding reel, and the first roller stabilizes the tension of the protective tape through the preset weight thereof. The metal clamping plate is arranged on the product material winding reel to increase the weight of the product material winding reel.

10. The tape film CCO package device of claim 9, wherein, The outer diameter of the metal clamping plate ranges from 450 mm to 500 mm.

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