Flower basket for silicon wafer cleaning and texturing
By setting bumps and holes on the inner wall of the slot of the silicon wafer flower basket, and adding flexible rubber strips to the support rod and limit rod, the misalignment and basket printing problems caused by the thin and easy deformation of the silicon wafer is solved, and efficient velvet making of the silicon wafer and the improvement of product quality are achieved.
Patent Information
- Application Number
- CN202421714002.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In the existing silicon wafer velvet making process, the silicon wafer is thin and easy to deform, resulting in point contact with the flower basket easily misalignment when inserted into the silicon wafer, causing debris; while surface contact causes the silicon wafer to adsorb on the flower basket slot, resulting in flower basket marks.
A flower basket for cleaning and velvet made of silicon wafers is designed, adopting a slot structure, with bumps and holes in the inner wall of the slot to reduce the contact area between the slot and the slot and increase liquid flowability; at the same time, flexible rubber strips are added to the support rod and limit rod, including rubber strips containing fluorosilicone rubber, to reduce the generation of debris of the silicon wafer.
It effectively avoids the problem of flower basket prints and fragments during the velvet making process of silicon wafers, and improves the quality of velvet making of silicon wafers and the market competitiveness of products.
Smart Images
Figure CN222927442U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a silicon wafer texturing process, in particular to a basket for cleaning and texturing silicon wafers. Background Art
[0002] Silicon wafers are getting thinner and more deformed and bent. In the existing point-contact basket, due to the bending of the silicon wafers, misalignment is likely to occur during the card point alignment, resulting in fragmentation. To solve the misalignment problem, it is changed to surface contact, but the surface contact will cause the silicon wafers to adsorb on the smooth surface of the basket slot, and there will be basket marks during texturing. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is: to provide a basket for cleaning and texturing silicon wafers in order to overcome the deficiencies existing in the prior art.
[0004] The technical solution adopted by the utility model to solve its technical problem is: a basket for cleaning and texturing silicon wafers, including a basket body, wherein the basket body has a number of uniformly distributed slots, the silicon wafers are placed in the slots, and convex points and holes for reducing the contact area between the silicon wafers and the inner wall of the slots are arranged on the inner wall of the slots;
[0005] At least two support rods are arranged in the basket body below the slots, the silicon wafers are placed on the support rods, and at least one limiting rod is arranged in the basket body above the slots, and the limiting rod is arranged at the upper end of the silicon wafers.
[0006] Further, the convex points are circular convex points.
[0007] Further, the holes are round holes.
[0008] Further, flexible rubber strips are arranged on the contact surfaces between the support rods and the silicon wafers, and flexible rubber strips are also arranged on the contact surfaces between the limiting rods and the silicon wafers.
[0009] Further, the flexible rubber strips are rubber strips containing fluorosilicone rubber.
[0010] The beneficial effects of the utility model are: the basket for cleaning and texturing silicon wafers of the utility model has the characteristics of simple structure, no basket marks during texturing, and the silicon wafers are not easily broken;
[0011] In order to solve the problem of basket marks during silicon wafer texturing, the present application adds patterns such as convex points and holes on the smooth surface of the existing slots, so that the liquid has good flow with the silicon wafers, thereby solving the basket marks.
[0012] In addition, the thinner the silicon wafers are, the easier they are to break. During the texturing process, the limiting parts of the basket and the silicon wafers will also have contact and impact, which is also one of the sources of fragmentation. Therefore, flexible rubber strips containing fluorosilicone rubber are added to the support rods below the basket and the limiting rods above. It has elasticity and can reduce fragmentation. Description of the Drawings
[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0014] Figure 1 is the exploded view of the present invention.
[0015] Figure 2 is Figure 1 the structural schematic diagram of the card slot plate in
[0016] Figure 3 is the cross-sectional view of the present invention.
[0017] Figure 4 is the structural schematic diagram after the silicon wafer is placed on the present invention.
[0018] In the figure: 1. Side plate, 2. Card slot, 3. Convex point, 4. Hole, 5. Support rod, 6. Limit rod, 7. Flexible rubber strip, 8. Connecting rod, 9. End head. Specific embodiments
[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0020] Figures 1 to 4 A flower basket for cleaning and texturing silicon wafers as shown includes a basket body. The basket body includes two side plates 1 and six connecting rods 8 with card slot plates. Six first mounting holes are provided on the side plates 1, and both ends of the connecting rods 8 are inserted into the first mounting holes. The card slot plate is U-shaped, and the adjacent side edges of the two card slot plates form a card slot 2. Four second mounting holes are provided on the side plates 1, and four support rods 5 are installed through the second mounting holes. Silicon wafers are placed on the support rods 5. At least two limit rods 6 are provided on the upper part of the side plates 1. The limit rods 6 are arranged in the grooves on the upper part of the side plates 1. The limit rods 6 are arranged at the upper ends of the silicon wafers. The limit rods 6 are installed or removed to realize the taking and placing of the silicon wafers. The end parts of the limit rods 6 have end heads 9 that cooperate with the side plates 1 for limiting; in the figure, it is a double row. Two support rods 5 at the bottom of the single-row lower flower basket 1 and one limit rod 6 at the top of the flower basket 1 form a triangular limiting structure.
[0021] The silicon wafer is placed in the card slot 2, which solves the problem of the existing point-contact flower basket. Since the silicon wafer is thin and easily deformed, when inserting the silicon wafer into the flower basket, point contact easily causes misalignment and chips. On the inner wall of the card slot 2, that is, on the side of the card slot plate, bumps 3 for reducing the contact area between the silicon wafer and the inner wall of the card slot and holes 4 for liquid circulation are processed. Preferably, the bumps 3 are circular bumps and the holes 4 are round holes. Such a design can allow the edge liquid to come into good contact with the silicon wafer, solving the problem that when in surface contact before, the silicon wafer is adsorbed on the flower basket, resulting in the appearance of flower basket marks. The existence of flower basket marks will destroy the uniformity of the silicon wafer surface, affect its appearance quality, and may further affect the market competitiveness of the final product. Since an ideal velvet structure cannot be effectively formed in the flower basket mark area, the light absorption rate in this area is reduced, thereby reducing the overall performance of the battery. The existence of flower basket marks requires additional processing steps to remove, increasing the production cost and process complexity. Therefore, preventing the appearance of flower basket marks can greatly improve the product quality.
[0022] In order to further reduce the chips during the texturing process of the silicon wafer, a flexible rubber strip 7 is sleeved on the contact surface between the support rod 5 and the silicon wafer, and a flexible rubber strip 7 is also sleeved on the contact surface between the limit rod 6 and the silicon wafer. The flexible rubber strip 7 is segmented, and it is not excluded that the flexible rubber strip 7 is integral. Preferably, the flexible rubber strip is a rubber strip containing fluorosilicone rubber.
[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A flower basket for cleaning and velveting silicon wafers, comprising a basket, characterized in that: The basket is provided with a plurality of evenly distributed slots, in which the silicon wafers are placed, and the inner walls of the slots are provided with protrusions and holes for reducing the contact area between the silicon wafers and the inner walls of the slots; At least two support rods are arranged in the basket at the lower part of the slot, and the silicon wafer is placed on the support rods. At least one limit rod is arranged in the basket at the upper part of the slot, and the limit rod is arranged at the upper end of the silicon wafer.
2. A flower basket for cleaning and texturing silicon wafers according to claim 1, characterized in that: The convex points are circular convex points.
3. A flower basket for cleaning and texturing silicon wafers according to claim 1, characterized in that: The hole is a round hole.
4. A flower basket for cleaning and texturing silicon wafers according to claim 1, characterized in that: A flexible rubber strip is arranged on the contact surface between the support rod and the silicon wafer, and a flexible rubber strip is also arranged on the contact surface between the limit rod and the silicon wafer.
5. A flower basket for cleaning and texturing silicon wafers according to claim 4, characterized in that: The flexible rubber strip is a rubber strip containing fluorosilicone rubber.