Conductive roller for electroplating crystal silicon wafer circuit

Abstract

The utility model discloses a crystal silicon wafer circuit electroplating conductive roller, which relates to the technical field of electroplating and comprises a mandrel, graphite fiber cotton sleeved outside the mandrel and graphite fiber fixing rings arranged at two ends of the graphite fiber cotton and sleeved on the mandrel. The graphite fiber cotton is fixed to the mandrel through graphite fiber fixing rings at the two ends, inner teeth are arranged at the two ends of the mandrel, each graphite fiber fixing ring comprises a fixing ring body, and a fixing hole is formed in one side of each fixing ring body. A circle of graphite fiber cotton is sleeved outside the core shaft, and the graphite fiber as a novel reinforcing material not only has a series of excellent performances such as corrosion resistance, low expansion coefficient and high specific modulus, but also can effectively ensure the high conductivity of the electroplating conductive roller and improve the practicability of the device; the graphite fiber cotton of the device is fixed through the graphite fiber fixing ring, the fixing structure and technology are simple, cost is low, and application and popularization are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of electroplating technology, specifically a conductive roller for electroplating silicon wafer circuits. Background Technology

[0002] Electroplating is a common traditional process in circuit board manufacturing, MEMS fabrication, and IC manufacturing. It is typically used to create metal interconnect structures, enabling electrical connections between components and between layers of multilayer wiring circuits. Electroplating technology involves low processing temperatures, making it suitable not only for the fabrication of traditional battery electrodes but also for the fabrication of electrodes for heterojunction cells, N-type bifacial cells, PERC cells, and IBC cells.

[0003] Chinese Patent Publication No. CN209798145U discloses a detachable cathode conductive roller assembly for electroplating. This device drives a second transmission assembly to rotate via a drive assembly, thereby rotating the conductive roller. The conductive roller is connected to the negative terminal of a rectifier via a rotating conductor, ensuring current flow while the conductive roller rotates. The conductive roller is connected to a first transmission assembly at one end and to a second transmission assembly at the other end, facilitating easy disassembly and installation. Research on existing technologies and the aforementioned patent reveals that the conductivity of existing electroplating conductive rollers needs improvement. Therefore, this utility model proposes a conductive roller for electroplating silicon wafer circuits. Utility Model Content

[0004] Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a conductive roller for electroplating silicon wafer circuits.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a conductive roller for electroplating silicon wafer circuits, comprising a mandrel, graphite fiber cotton sleeved on the outside of the mandrel, and graphite fiber fixing rings disposed at both ends of the graphite fiber cotton and sleeved on the mandrel. The graphite fiber cotton is fixed to the mandrel by the graphite fiber fixing rings at both ends. Both ends of the mandrel are provided with internal threads, and a ring of graphite fiber cotton is sleeved on the outside of the mandrel. Since graphite fiber, as a novel reinforcing material, not only has a series of excellent properties such as corrosion resistance, low expansion coefficient and high specific modulus, it can also effectively ensure the high conductivity of the electroplating conductive roller, improve the practicality of the device, and the graphite fiber cotton of the device is fixed by the graphite fiber fixing rings, which not only has a simple fixing structure and process, but also has low cost, making it easy to promote and use.

[0008] Preferably, the graphite fiber fixing ring includes a fixing ring body, and a fixing hole is provided on one side of the fixing ring body, with a limit screw connected to the internal thread of the fixing hole.

[0009] Preferably, the fixing hole is a stepped hole, which includes a large hole and a small hole, and the small hole is threaded inside.

[0010] Preferably, the method further includes transmission components disposed at both ends of the mandrel, the transmission components including transmission wheels sleeved at both ends of the mandrel, the transmission wheels and the mandrel being keyed together.

[0011] Preferably, the transmission component further includes a fixing stud threaded into the internal thread, and the transmission component further includes a conductive post, which is fixedly installed at both ends of the mandrel by the fixing stud.

[0012] Preferably, one end of the conductive post is connected to a rotating conductor.

[0013] Beneficial effects:

[0014] Compared with existing technologies, this conductive roller for electroplating silicon wafers has the following advantages:

[0015] The mandrel of this invention is surrounded by a ring of graphite fiber cotton. As a novel reinforcing material, graphite fiber not only has a series of excellent properties such as corrosion resistance, low expansion coefficient and high specific modulus, but also effectively ensures the high conductivity of the electroplating conductive roller, improving the practicality of the device. Furthermore, the graphite fiber cotton of this device is fixed by a graphite fiber fixing ring, which not only has a simple fixing structure and process, but also has low cost, making it easy to promote and use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention, which connects a rotating conductor via a transmission component.

[0019] Figure 3 This is a schematic diagram of the installation structure of the limiting screw of this utility model;

[0020] Figure 4 This is a schematic diagram of the fixing hole of this utility model.

[0021] In the picture:

[0022] 1. Mandrel; 2. Graphite fiber cotton; 3. Graphite fiber retaining ring; 301. Retaining ring body; 302. Retaining hole; 3021. Large hole; 3022. Small hole; 3023. Thread; 303. Limiting screw; 4. Internal thread; 5. Transmission component; 501. Transmission wheel; 502. Retaining stud; 503. Conductive post; 6. Rotary conductor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 As shown, this utility model provides a technical solution: a conductive roller for electroplating silicon wafer circuits, including a mandrel 1, graphite fiber cotton 2 sleeved on the outside of the mandrel 1, and graphite fiber fixing rings 3 set at both ends of the graphite fiber cotton 2 and sleeved on the mandrel 1. The graphite fiber cotton 2 is fixed to the mandrel 1 by the graphite fiber fixing rings 3 at both ends. Both ends of the mandrel 1 are provided with internal teeth 4. A ring of graphite fiber cotton 2 is sleeved on the outside of the mandrel 1. Since graphite fiber is a new type of reinforcing material, it not only has a series of excellent properties such as corrosion resistance, low expansion coefficient and high specific modulus, but also effectively ensures the high conductivity of the electroplating conductive roller, improving the practicality of the device. Moreover, the graphite fiber cotton 2 of this device is fixed by the graphite fiber fixing rings 3, which not only has a simple fixing structure and process, but also has low cost, which is conducive to its widespread use.

[0025] Please refer to the following carefully. Figure 3 and Figure 4 The graphite fiber fixing ring 3 includes a fixing ring body 301. A fixing hole 302 is provided on one side of the fixing ring body 301. A limit screw 303 is connected to the internal thread of the fixing hole 302. The fixing hole 302 is a stepped hole, which includes a large hole 3021 and a small hole 3022. A thread 3023 is provided inside the small hole 3022.

[0026] Please refer to the following carefully. Figure 2 It also includes transmission components 5 disposed at both ends of the mandrel 1. The transmission components 5 include transmission wheels 501 sleeved at both ends of the mandrel 1. The transmission wheels 501 and the mandrel 1 are keyed together. The transmission components 5 also include fixing studs 502 threaded into the internal threads 4. The transmission components 5 also include conductive posts 503. The conductive posts 503 are fixedly installed at both ends of the mandrel 1 by fixing studs 502. One end of the conductive posts 503 is connected to a rotating conductor 6.

[0027] Working principle: A ring of graphite fiber cotton 2 is sleeved on the outside of the mandrel 1. As a new type of reinforcing material, graphite fiber not only has a series of excellent properties such as corrosion resistance, low expansion coefficient and high specific modulus, but also effectively ensures the high conductivity of the electroplating conductive roller. In addition, the graphite fiber cotton 2 of this device is fixed by graphite fiber fixing ring 3. The fixing structure and process are simple and the cost is low, which is conducive to its widespread use.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A conductive drum for electroplating a conductive line on a crystalline silicon wafer, characterized in that: The graphite fiber fixed ring (3) includes a fixed ring body (301), one side of the fixed ring body (301) is provided with a fixed hole (302), the inside of the fixed hole (302) is in threaded connection with a limiting screw (303).

2. A conductive drum for electroplating a conductive path on a crystalline silicon wafer as defined in claim 1, wherein: The fixed hole (302) is a stepped hole, and the stepped hole includes a large hole (3021) and a small hole (3022), and the inside of the small hole (3022) is provided with a thread (3023).

3. A conductive drum for electroplating a conductive path on a crystalline silicon wafer as defined in claim 2, wherein: Further comprising a transmission member (5) arranged at both ends of the mandrel (1), the transmission member (5) includes a transmission wheel (501) sleeved at both ends of the mandrel (1), and the transmission wheel (501) and the mandrel (1) are in key connection.

4. A conductive drum for electroplating a conductive path on a crystalline silicon wafer as defined in claim 1, wherein: The transmission member (5) further includes a fixed stud (502) in threaded connection in the internal tooth (4), and the transmission member (5) further includes a conductive column (503), and the conductive column (503) is fixedly installed at both ends of the mandrel (1) through the fixed stud (502).

5. A conductive drum for electroplating a conductive path on a crystalline silicon wafer as defined in claim 4, wherein: One end of the conductive column (503) is connected with a rotary conductor (6).

6. A conductive drum for electroplating a conductive path on a crystalline silicon wafer as defined in claim 5, wherein: ​

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