CN210732123U - Surface grinding device for plasma CVD wafer heater - Google Patents
Surface grinding device for plasma CVD wafer heater Download PDFInfo
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- CN210732123U CN210732123U CN201921655188.8U CN201921655188U CN210732123U CN 210732123 U CN210732123 U CN 210732123U CN 201921655188 U CN201921655188 U CN 201921655188U CN 210732123 U CN210732123 U CN 210732123U
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Abstract
The utility model discloses a surface grinding device for a plasma CVD wafer heater, which is characterized in that a mounting bracket, a rotating device, a heater supporting disc and a grinding disc are sequentially arranged from bottom to top, and a wafer heater is arranged between the heater supporting disc and the grinding disc; the bottom of the grinding disc main body is provided with a grinding block and an adjusting support cylinder, the grinding disc main body is fixedly connected with the grinding block through an adjusting bolt, and the upper end of the adjusting bolt is provided with a digital display depth measurement indicator; the mounting flat plate is provided with a mounting main body, a step hole is formed in the mounting main body, the lower part of a fixed seat provided with a rotating motor is matched and fixed with the step hole, and the upper end of the connecting disc is provided with a supporting disc body; the grinding device has the advantages of simple structure, good stability, convenient operation, and quick and efficient grinding; the labor intensity of workers is greatly reduced, the grinding amount at one time is reduced, the grinding times of the wafer heater are increased, the service life of the wafer heater is prolonged, and the cost is saved.
Description
Technical Field
The utility model relates to a plasma CVD wafer heater's field especially relates to a plasma CVD is surface grinding device for wafer heater.
Background
One common process is plasma chemical vapor deposition (PECVD), which is generally used to deposit thin films on semiconductor wafer substrates, with the gases reacting to form a layer of material on the wafer heater surface; the plasma CVD wafer heater is a key device for processing a semiconductor chip, plays a role in bearing and adsorbing a wafer and providing heating, and as the use times are increased, the wafer is contacted with the surface of the plasma CVD wafer heater in the process, the aluminum material on the heating surface of the wafer in a high-temperature state is continuously abraded by the wafer, so that the surface flatness and the size of an adsorption area of the wafer heater are reduced, the adsorption force is reduced, the process cannot be normally finished, and the process result is reduced.
Therefore, the surface of the plasma CVD wafer heater needs to be repaired, so that the flatness of the surface and the size of an adsorption area are ensured, and the normal operation of the process is ensured; in the prior art, a numerical control machine tool or manual repair is adopted for repairing, but the material removal amount is large, and the once removal amount of the numerical control machine tool is 0.12mm, so that the wafer heater has the advantages of less grinding times and high use cost; in addition, the surface of the wafer heater has more grooves and is made of too soft materials, so that the surface flatness is not well controlled, and the service life of the heater and the process stability are greatly reduced.
Disclosure of Invention
The utility model aims at providing a plasma CVD is surface grinding device for wafer heater, simple structure, convenient operation, the coping is effectual, and is efficient, has solved above technical problem.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: a surface grinding device for a plasma CVD wafer heater is characterized in that: the wafer heater is arranged between the heater supporting disc and the grinding disc; the grinding disc comprises a grinding disc main body, a grinding block and an adjusting support cylinder are arranged at the bottom of the grinding disc main body, the grinding disc main body is fixedly connected with the grinding block through an adjusting bolt, and a digital display depth measurement indicator is arranged at the upper end of the adjusting bolt; the mounting bracket comprises a mounting support column, a mounting flat plate is arranged at the upper end of the mounting support column, a height adjusting block is arranged at the lower end of the mounting support column, a mounting main body is arranged on the mounting flat plate, a step hole is formed in the mounting main body, the lower part of a fixed seat provided with a rotating motor is matched and fixed with the step hole, a connecting disc is arranged on the upper surface of the rotating motor, a supporting disc body is arranged at the upper end of the connecting disc, and a circular ring is fixed at the upper end of the supporting disc; the adjusting support cylinder is connected with the circular ring.
Preferably: the height adjusting block is in threaded connection with the mounting support column.
Preferably: the adjusting support cylinder and the grinding disc main body are in threaded connection, and the adjusting support cylinder and the circular ring are in threaded connection.
Preferably: the supporting disc body is made of aluminum alloy.
Preferably: the material of the circular ring is PTFE.
Preferably: the length of the grinding block is equal to the radius of the grinding surface of the wafer heater.
The utility model has the advantages that; a surface grinding device for a plasma CVD wafer heater is characterized in that compared with the traditional structure: the device is provided with a wafer heater supporting disc with locking and positioning functions, a rotating device connected with the wafer heater supporting disc, a grinding disc with horizontal adjusting and measuring functions and an installation support with horizontal adjusting function; the length of the grinding block is equal to the radius of the wafer heater, and the grinding is uniform; the utility model has simple structure, good stability, convenient operation, fast and high-efficient grinding; the labor intensity of workers is greatly reduced, the grinding amount at one time is greatly reduced, the grinding times of the wafer heater are increased, the service life of the wafer heater is prolonged, and the cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the support disc of the upper heater of the present invention;
FIG. 3 is a schematic structural view of a middle rotating device according to the present invention;
FIG. 4 is a schematic view of the structure of the polishing disc of the present invention;
FIG. 5 is a schematic view of the mounting bracket of the present invention;
FIG. 6 is a schematic view of a wafer heater according to the present invention;
in the figure: 1. a heater support disk; 1-1, supporting the disc body; 1-2, a circular ring; 1-3. screws; 2. a rotating device; 2-1, fixing the base; 2-2. rotating the electrical machine; 2-3, connecting the disc; 3. a grinding disk; 3-1, grinding disc main body; 3-2, digitally displaying the depth measurement indicator; 4. mounting a bracket; 5. a wafer heater.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
in the drawings: a surface grinding device for a plasma CVD wafer heater is characterized in that: the wafer grinding device is sequentially provided with a mounting bracket 4, a rotating device 2, a heater supporting disc 1 and a grinding disc 3 from bottom to top, and a wafer heater 5 is arranged between the heater supporting disc 1 and the grinding disc 3; the grinding disc 3 comprises a grinding disc main body 3-1, a grinding block 3-5 and an adjusting support cylinder 3-4 are arranged at the bottom of the grinding disc main body 3-1, the grinding disc main body 3-1 is fixedly connected with the grinding block 3-5 through an adjusting bolt 3-3, and a digital display depth measurement indicator 3-2 is arranged at the upper end of the adjusting bolt 3-3; the mounting support 4 comprises a mounting support column 4-3, a mounting flat plate 4-2 is arranged at the upper end of the mounting support column 4-3, a height adjusting block 4-4 is arranged at the lower end of the mounting support column 4-3, a mounting main body 4-1 is arranged on the mounting flat plate 4-2, a stepped hole is formed in the mounting main body 4-1, the lower part of a fixed seat 2-1 provided with a rotating motor 2-2 is matched and fixed with the stepped hole, a connecting disc 2-3 is arranged on the upper surface of the rotating motor 2-2, a supporting disc body 1-1 is arranged at the upper end of the connecting disc 2-3, and a circular ring 1-2 is fixed at the upper end of the supporting disc body 1-1 through a screw; the adjusting support cylinder 3-4 is connected with the circular ring 1-2.
The height adjusting block 4-4 is in threaded connection with the mounting support column 4-3; the adjusting support cylinder 3-4 and the grinding disc main body 3-1, and the adjusting support cylinder 3-4 and the circular ring 1-2 are in threaded connection; the supporting disc body 1-1 is made of aluminum alloy; the material of the circular ring 1-2 is PTFE; the length of the grinding blocks 3-5 is equal to the radius of the grinding surface of the wafer heater 5.
The utility model discloses a concrete implementation: firstly, repairing a non-working surface area without a groove of a wafer heater by using a numerical control lathe, then placing the wafer heater in a heater supporting disc, fixing a circular ring on the supporting disc by using screws, adjusting the position of a grinding block by using an adjusting bolt to enable the grinding block to be in contact with the wafer heater, and simultaneously observing whether data displayed by three digital display depth measurement indicating tables are consistent or not until the data of the three digital display depth measurement indicating tables are adjusted to be consistent, wherein the flatness of the grinding block meets the requirement at the moment; then starting a rotating motor, driving a heater supporting disc to rotate by the rotating motor, and starting grinding; after grinding for 20-30 minutes, judging whether the grinding is in place or not by observing the color of the grinding surface, wherein the surface is dark before grinding, and the surface is light after grinding, so that the grinding progress can be easily observed; when the grinding is preliminarily judged to be in place by naked eyes, a digital display depth measurement indicator is further used for selecting a plurality of points on the wafer heater to measure through the measuring holes in the grinding main body disc, the display data are the same, and the grinding is in place. And displaying different data, namely that the grinding does not meet the requirement, adjusting the bolt at the moment, enabling the grinding block to be in contact with the wafer heater again, continuing to grind, setting the secondary grinding time to be 10-20 minutes, stopping grinding, and measuring again until the measured data are the same.
The surface grinding device is convenient to operate, greatly reduces the labor intensity of workers, greatly reduces the grinding amount at one time, greatly prolongs the grinding times of the wafer heater, prolongs the service life of the wafer heater and saves the cost. The grinding device is used for controlling the grinding amount, the grinding amount of the working surface of the plasma CVD wafer heater is reduced to the minimum, the grinding amount is less than 0.02mm, and the grinding amount can be measured after grinding.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (6)
1. A surface grinding device for a plasma CVD wafer heater is characterized in that: the wafer grinding machine is characterized in that the mounting bracket (4), the rotating device (2), the heater supporting disc (1) and the grinding disc (3) are sequentially arranged from bottom to top, and the wafer heater (5) is arranged between the heater supporting disc (1) and the grinding disc (3); the grinding disc (3) comprises a grinding disc main body (3-1), a grinding block (3-5) and an adjusting support cylinder (3-4) are arranged at the bottom of the grinding disc main body (3-1), the grinding disc main body (3-1) is fixedly connected with the grinding block (3-5) through an adjusting bolt (3-3), and a digital display depth measurement indicator (3-2) is arranged at the upper end of the adjusting bolt (3-3); the mounting support (4) comprises a mounting support column (4-3), a mounting flat plate (4-2) is arranged at the upper end of the mounting support column (4-3), a height adjusting block (4-4) is arranged at the lower end of the mounting support column (4-3), a mounting main body (4-1) is arranged on the mounting flat plate (4-2), a stepped hole is formed in the mounting main body (4-1), the lower part of a fixing seat (2-1) provided with a rotating motor (2-2) is matched and fixed with the stepped hole, a connecting disc (2-3) is arranged on the upper surface of the rotating motor (2-2), a support disc body (1-1) is arranged at the upper end of the connecting disc (2-3), and a circular ring (1-2) is fixed at the upper end of the support disc body (1-1) through a screw (1; the adjusting support cylinder (3-4) is connected with the circular ring (1-2).
2. A surface dressing apparatus for a plasma CVD wafer heater according to claim 1, wherein: the height adjusting blocks (4-4) are in threaded connection with the mounting support columns (4-3).
3. A surface dressing apparatus for a plasma CVD wafer heater according to claim 1, wherein: the adjusting support cylinder (3-4) and the grinding disc main body (3-1) and the adjusting support cylinder (3-4) and the circular ring (1-2) are in threaded connection.
4. A surface dressing apparatus for a plasma CVD wafer heater according to claim 1, wherein: the supporting disc body (1-1) is made of aluminum alloy.
5. A surface dressing apparatus for a plasma CVD wafer heater according to claim 1, wherein: the material of the circular ring (1-2) is PTFE.
6. A surface dressing apparatus for a plasma CVD wafer heater according to claim 1, wherein: the length of the grinding blocks (3-5) is equal to the radius of the grinding surface of the wafer heater (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655188.8U CN210732123U (en) | 2019-09-30 | 2019-09-30 | Surface grinding device for plasma CVD wafer heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921655188.8U CN210732123U (en) | 2019-09-30 | 2019-09-30 | Surface grinding device for plasma CVD wafer heater |
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| Publication Number | Publication Date |
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| CN210732123U true CN210732123U (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921655188.8U Active CN210732123U (en) | 2019-09-30 | 2019-09-30 | Surface grinding device for plasma CVD wafer heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576387A (en) * | 2019-09-30 | 2019-12-17 | 靖江先锋半导体科技有限公司 | surface grinding device for plasma CVD wafer heater |
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2019
- 2019-09-30 CN CN201921655188.8U patent/CN210732123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576387A (en) * | 2019-09-30 | 2019-12-17 | 靖江先锋半导体科技有限公司 | surface grinding device for plasma CVD wafer heater |
| CN110576387B (en) * | 2019-09-30 | 2024-03-12 | 江苏先锋精密科技股份有限公司 | Surface grinding device for plasma CVD wafer heater |
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Address after: 214500 No. 195, Xingang Avenue, Jingjiang Economic Development Zone, Taizhou City, Jiangsu Province Patentee after: Jiangsu Xianfeng Precision Technology Co.,Ltd. Address before: 214500 No.8 Deyu Road, Chengnan Park, Jingjiang City, Taizhou City, Jiangsu Province Patentee before: JINGJIANG XIANFENG SEMICONDUCTOR TECHNOLOGY CO.,LTD. |
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