KR20080090025A - Method for adjusting temperature of substrate and substrate supporting member, substrate processing apparatus including the substrate supporting member - Google Patents
Method for adjusting temperature of substrate and substrate supporting member, substrate processing apparatus including the substrate supporting member Download PDFInfo
- Publication number
- KR20080090025A KR20080090025A KR1020070032963A KR20070032963A KR20080090025A KR 20080090025 A KR20080090025 A KR 20080090025A KR 1020070032963 A KR1020070032963 A KR 1020070032963A KR 20070032963 A KR20070032963 A KR 20070032963A KR 20080090025 A KR20080090025 A KR 20080090025A
- Authority
- KR
- South Korea
- Prior art keywords
- substrate
- heat transfer
- support plate
- transfer member
- wafer
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67103—Apparatus for thermal treatment mainly by conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6831—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using electrostatic chucks
- H01L21/6833—Details of electrostatic chucks
Abstract
Description
1A and 1B are cross-sectional views of a wafer showing a gap formed between metal lines.
2 is a schematic view showing a semiconductor manufacturing apparatus including a substrate processing apparatus according to the present invention.
3 is a diagram schematically illustrating the substrate processing apparatus of FIG. 2.
4 is a view showing the support plate of FIG.
5A and 5B are views illustrating how the temperature of the heat transfer member of FIG. 4 is adjusted using thermoelectric elements.
6A and 6B are views illustrating an operating state of the support member of FIG. 3.
7 is a flowchart illustrating a substrate processing method according to the present invention.
8 is a view illustrating a state in which the substrate processing apparatus of FIG. 3 operates.
<Description of Symbols for Main Parts of Drawings>
1: semiconductor manufacturing equipment 10: substrate processing apparatus (process chamber)
100: process chamber 200: support member
220: support plate 300: temperature control unit
310: heat transfer member 320: thermoelectric element
350: top plate 360: bottom plate
380: first power source 420: chucking electrode
440: second power supply 500: plasma generating member
600: gas supply member
The present invention relates to a method and a substrate support member for controlling the temperature of the substrate, and a substrate processing apparatus including the same, and more particularly, to a method and a substrate support member for controlling the temperature of the substrate using a thermoelectric element, and including the same It relates to a substrate processing apparatus.
The semiconductor device has many layers on a silicon substrate, and these layers are deposited on the substrate through a deposition process. This deposition process has several important issues, which are important in evaluating the deposited films and selecting the deposition method.
One of the issues with deposition is filling space. This includes gap filling between the metal lines with an insulating film including an oxide film. The gap is provided to physically and electrically insulate the metal lines.
1A and 1B are cross-sectional views of a wafer showing a gap formed between metal lines a. 1A and 1B show an incomplete gap filling process. The gap between the metal lines a is filled with the insulating film b. At this time, while the insulating film b is filled in the gap, an overhang h grows in the form of breadloafing in the upper portion of the gap, and the growth rate of the overhang h is an insulating film filled in the gap. It is faster than the growth rate of b). As a result, the overhangs h meet with each other to close the top of the gap to form voids in the gap, preventing the insulating film b from being deposited in the gap. The formed voids result in high contact resistance and high sheet resistance, and also cause breakage. In addition, the voids may contain a treatment liquid or water, causing stability problems.
The High-Density Plasma Chemical Vapor Deposition (HDPCVD) method uses a deposition / etching / deposition method that deposits a film in a gap using plasma, etches overhang grown during deposition of the film, and then deposits the film again. To prevent the formation of voids. That is, the partially filled gap is reshaped to open the gap, and a film is deposited in the gap before voids are formed in the gap. This method can deposit a film without voids in a gap having a large Aspect Ratio (AR).
Such a plasma chemical vapor deposition apparatus has a chamber in which a deposition process is performed. The wafer is loaded inside the chamber, and a process gas is supplied to the top of the wafer. When the electromagnetic field is formed in the chamber while the process gas is supplied, plasma is generated from the process gas by the electromagnetic field. Outside the chamber is provided a coil to which a high frequency power is connected, and when a high frequency power is applied, the coil creates an electromagnetic field in the chamber.
On the other hand, the wafer is loaded on the upper surface of the support plate, and the wafer is fixed on the support plate by a separate clamping device (for example, a mechanical chuck using a mechanical structure, a vacuum chuck using a vacuum, or an electrostatic chuck). . In addition, the wafer is cooled by a separate cooling device (for example, helium gas injected on the back side of the wafer). However, in the case of installing such a clamping device and a cooling device, respectively, the structure of the support plate becomes very complicated, and it is also difficult to control each of them. In addition, manufacturing costs and footprint increase as the components increase. In addition, when the wafer is cooled using helium gas, it is difficult to precisely control the temperature of the wafer.
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a method and a substrate support member for adjusting the temperature of a substrate having a simple configuration, and a substrate processing apparatus including the same.
Another object of the present invention is to provide a method for controlling the temperature of a substrate that can simultaneously clamp and cool, a substrate support member, and a substrate processing apparatus including the same.
Still another object of the present invention is to provide a method of controlling a temperature of a substrate capable of precisely controlling the temperature of the substrate, a substrate support member, and a substrate processing apparatus including the same.
Still other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.
According to the present invention, the substrate support member is a support plate on which the substrate is placed on an upper surface, a heat transfer member installed on the support plate and controlling the temperature of the substrate placed on the support plate, and connected to the heat transfer member from the outside. Chucking chucking the plurality of thermoelectric elements for adjusting the temperature of the heat transfer member by the first power source applied, and the substrate placed on the support plate by a second power source installed on the support plate and applied from the outside An electrode.
The heat transfer member may include a plurality of first heat transfer members disposed generally side by side, and second heat transfer members connecting the first heat transfer members adjacent to each other.
The chucking electrode may include a circular electrode disposed to be spaced apart from the center of the support plate, and a plurality of rod electrodes extending from the circular electrode toward the inside of the circular electrode, wherein the first heat transfer member and the rod electrode are alternately disposed. Can be arranged.
The heat transfer member may have a zigzag shape.
According to the present invention, a substrate processing apparatus includes a processing chamber providing an internal space in which a process is performed on a substrate, a substrate supporting member installed inside the processing chamber and supporting the substrate, and a gas supply member supplying a source gas into the processing chamber. And a plasma generating member for generating plasma from the source gas, wherein the substrate supporting member includes a support plate on which a substrate is placed on an upper surface thereof, a support plate on which the substrate is placed, and a temperature of the substrate placed on the support plate. A heat transfer member for controlling, a plurality of heat generators connected to the heat transfer member to adjust the temperature of the heat transfer member by a first power source applied from the outside, and a second power source installed on the support plate and applied from the outside; A chucking electrode for chucking the substrate placed on the support plate by It is.
Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to FIGS. 2 to 8. Embodiment of the present invention may be modified in various forms, the scope of the present invention should not be construed as limited to the embodiments described below. This embodiment is provided to explain in detail the present invention to those skilled in the art. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a more clear description.
Hereinafter, the wafer W will be described as an example of the substrate, but the present invention is not limited thereto. In addition, hereinafter, a
2 is a diagram schematically showing a
Referring to FIG. 2, the
The wafer W is subjected to a predetermined process in the
The
The
3 is a front view schematically showing a
As shown in FIG. 3, the
In the present embodiment, the process performed using the
A
The wafer W is placed side by side with the
One end of the
A sealing
The
Next, a
On the
A plurality of
A
The cleaning gas flows inside the
The
4 is a view illustrating the
The
The chucking
5A and 5B illustrate a state in which the temperature of the
A plurality of
The
As shown in FIGS. 5A and 5B, the
As seen above, the
The
Hereinafter, a method of operating the temperature control unit 300 according to the present invention will be described with reference to FIGS. 5A to 5B.
As shown in FIG. 5A, a current is applied from the
When the current flows, when viewed based on the
Therefore, the
As shown in FIG. 5B, a current is applied from the
When a current flows, the current flows from the N-
Therefore, the
On the other hand, when a current is applied from the
As described above, the wafer W may be cooled or heated in accordance with the direction of the current applied from the
7 is a flowchart illustrating a substrate processing method according to the present invention, and FIG. 8 is a view illustrating a state in which the
First, the wafer W is loaded onto the
Next, plasma is generated in the processing chamber 100 (S20). Specific methods for generating plasma are as follows. First, the source gas is supplied to the upper portion of the wafer W using the
Next, a film is deposited in the gap of the wafer W using the generated plasma (S30). The resulting plasma is supplied onto the wafer W, and a film is deposited in the gap of the wafer W. Thereafter, as described above, etching is performed to remove the overhang grown on the gap, and when the etching is completed, the deposition process is repeated in the same manner. Through this method, the gap of the wafer W is filled.
Although the present invention has been described in detail with reference to preferred embodiments, other forms of embodiments are possible. Therefore, the spirit and scope of the claims set forth below are not limited to the preferred embodiments.
According to the present invention, the wafer can be cooled or heated in accordance with the direction of the current applied from the power supply. In addition, the temperature of the wafer can be precisely controlled. In addition, the configuration of the support plate can be simplified. In addition, the footprint of the entire apparatus can be reduced.
Claims (8)
Priority Applications (1)
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KR1020070032963A KR20080090025A (en) | 2007-04-03 | 2007-04-03 | Method for adjusting temperature of substrate and substrate supporting member, substrate processing apparatus including the substrate supporting member |
Applications Claiming Priority (1)
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KR1020070032963A KR20080090025A (en) | 2007-04-03 | 2007-04-03 | Method for adjusting temperature of substrate and substrate supporting member, substrate processing apparatus including the substrate supporting member |
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KR20080090025A true KR20080090025A (en) | 2008-10-08 |
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KR1020070032963A KR20080090025A (en) | 2007-04-03 | 2007-04-03 | Method for adjusting temperature of substrate and substrate supporting member, substrate processing apparatus including the substrate supporting member |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190002112A (en) * | 2017-06-29 | 2019-01-08 | 주식회사 케이씨텍 | Apparatus and Method for processing substrate |
-
2007
- 2007-04-03 KR KR1020070032963A patent/KR20080090025A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190002112A (en) * | 2017-06-29 | 2019-01-08 | 주식회사 케이씨텍 | Apparatus and Method for processing substrate |
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