KR20120025643A - A gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing thereof - Google Patents
A gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing thereof Download PDFInfo
- Publication number
- KR20120025643A KR20120025643A KR1020100087146A KR20100087146A KR20120025643A KR 20120025643 A KR20120025643 A KR 20120025643A KR 1020100087146 A KR1020100087146 A KR 1020100087146A KR 20100087146 A KR20100087146 A KR 20100087146A KR 20120025643 A KR20120025643 A KR 20120025643A
- Authority
- KR
- South Korea
- Prior art keywords
- plate
- tube
- gas
- supply unit
- hole
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45572—Cooled nozzles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45574—Nozzles for more than one gas
Abstract
Description
The present invention relates to a gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing the same, and more particularly to a gas supply unit of a chemical vapor deposition apparatus for depositing a thin film using at least one or more process gas and a manufacturing method thereof. .
Chemical vapor deposition means a process of forming a thin film on a substrate by using a chemical reaction of a process gas. Therefore, the chemical vapor deposition apparatus supplies at least one highly reactive process gas to the chamber, and uses the light, heat, plasma, microwave, X-ray, or electric field to process the process gas. Activating to form a thin film of good quality on the substrate.
Such a chemical vapor deposition apparatus includes a gas supply unit for supplying a process gas into the process chamber. The gas supply unit supplies heterogeneous process gases using a plurality of injection holes formed in the upper portion of the process chamber. Then, the deposition occurs on the substrate while the reaction occurs between different process gases inside the process chamber. In this case, in order to prevent the reaction from occurring before the plurality of process gases are supplied into the process chamber, the gas supply unit is configured to allow each process gas to proceed along a separate flow path.
However, in the related art, since each process gas is supplied to the process space along a separate flow path, it is difficult to uniformly supply each process gas onto the wafer. Thus, a problem arises in that the thin film is unevenly deposited on the wafer.
The present invention is to form a uniform pattern on the bottom surface of the gas supply unit, each injection port to which different process gases are supplied to overcome the above-mentioned problems, each process gas can be uniformly supplied to the process space To provide a gas supply unit of a chemical vapor deposition apparatus.
Furthermore, the present invention is to provide a method for manufacturing a gas supply unit of the chemical vapor deposition apparatus that can minimize the brazing process while maintaining the airtight of each process gas flow path when manufacturing the gas supply unit as described above.
The object of the present invention described above is a first plate in which a plurality of injection holes are formed, a second plate provided on an upper side of the first plate, and a first end of which both ends are brazed to the first plate and the second plate, respectively. A second tube braze-bonded to the tube, the first plate, and the second plate, the second tube extending upward and a plurality of through-holes through which the second tube penetrates, and is installed on the upper side of the second plate. And a sealing member installed on an upper surface of the third plate and maintaining the airtightness between the through hole and the second tube, wherein an upper end of the first tube is disposed between the second plate and the third plate. A chemical gas is provided to communicate with the first gas chamber is formed, the upper end of the second tube is in communication with the second gas chamber formed on the upper side of the third plate. It is achieved by the gas supply unit of the deposition apparatus.
Here, the sealing member may be made of an O-ring made of an elastic material. At this time, it is preferably configured to further include a cover plate seated on the upper side of the third plate, for pressing the sealing member.
In addition, an upper surface of the third plate may include a seating portion on which the sealing member is seated along the circumference of the through hole. Here, the seating portion preferably forms an inclined surface inclined downward in the through-hole direction.
Meanwhile, an object of the present invention described above is to form a cooling chamber by brazing a first tube and a second tube to penetrate between the first plate and the second plate, and the second tube in the through hole inside the third plate. Seating the third plate on the upper side of the second plate to insert an upper end of the second plate to form a first gas chamber, and a sealing member on the upper side of the third plate to maintain the airtightness between the through hole and the second tube. And installing a cover member on the upper side of the third plate to pressurize the sealing member, and installing a fourth plate on the upper side of the cover member to form a second gas chamber. The first tube forms a supply flow path of gas accommodated in the first gas chamber, and the second tube supplies a supply flow of gas contained in the second gas chamber. It can also be achieved by a method for producing a gas supply unit of a chemical vapor deposition apparatus installed to form a furnace.
Here, it is preferable that the sealing member uses an O-ring made of an elastic material.
Meanwhile, the manufacturing method may further include manufacturing the third plate, and manufacturing the third plate may include forming the through hole in a shape corresponding to the arrangement of the second tube in the third plate. And forming a recess along the circumference of the through hole.
On the other hand, prior to seating the third plate on the upper side of the second plate, it is preferable to further proceed to remove the foreign matter remaining on the upper side of the second plate.
According to the present invention, each process gas can be uniformly supplied to the process space, thereby improving wafer deposition quality.
In addition, since the brazing process can be minimized when manufacturing the gas supply unit, not only the process can be simplified, but also maintenance and repair can be easily performed.
1 is a cross-sectional view showing a cross section of a chemical vapor deposition apparatus according to a preferred embodiment of the present invention,
2 is a cross-sectional view showing a cross section of the gas supply unit of FIG.
3 is an enlarged cross-sectional view of an upper surface of the third plate of FIG. 2;
Figure 4 is a flow chart showing the procedure for manufacturing a gas supply unit of the chemical vapor deposition apparatus of FIG.
FIG. 5 is a cross-sectional view schematically showing the process contents performed in each step of FIG. 4.
Hereinafter, with reference to the drawings, it will be described in detail with respect to the gas supply unit of the chemical vapor deposition apparatus according to a preferred embodiment of the present invention.
In the present embodiment, a description will be given of a chemical vapor deposition apparatus (MOCVD) using a process gas containing an organometallic compound. However, the present invention is not limited thereto. In addition, the present invention may be applied to various chemical vapor deposition apparatuses which perform a deposition process by reacting a plurality of process gases.
1 is a cross-sectional view showing a cross section of a chemical vapor deposition apparatus according to a preferred embodiment of the present invention.
As shown in FIG. 1, the chemical vapor deposition apparatus includes a
First, the
On the other hand, the
The
The lower side of the
Meanwhile, the
As described above, in the present embodiment, the MOCVD process for thin film deposition using the organometallic compound is described using MOCVD. The first process gas G1 includes a Group 5 compound, and the second process gas ( G2) may comprise a Group 3 compound. Specifically, the first process gas G1 may use a gas including an ammonia (NH 3 ) source, and the second process gas G2 may use a gas including a trimethylgallium (TMGa) source. However, the present invention is not limited thereto, and various types of gases may be used according to a process design. In addition, the
As shown in FIG. 1, the
At this time, the
2 is a cross-sectional view showing a cross section of the gas supply unit of FIG. Hereinafter, referring to FIG. 2, the
As shown in FIG. 2, the
At this time, the
Here, the
As such, the gas supply unit including the first and
Specifically, the
The
The
On the other hand, the
On the other hand, each gas chamber is preferably provided with an independent flow path to supply each process gas to the bottom surface of the
As shown in FIG. 2, the plurality of
The plurality of
In this case, the lower end opening of the
Here, a plurality of first through
On the other hand, the
On the other hand, the first, second and third plates are processed to maintain airtightness while the first tube or the second tube is installed through. Therefore, a phenomenon in which the process gas or the cooling fluid of the
To this end, the
The upper side of the
If the
On the contrary, the third through
FIG. 3 is an enlarged cross-sectional view of the upper surface of the third plate of FIG. 2. As shown in FIG. 3, in this embodiment, an O-ring may be used as an example of the sealing
The
In this embodiment, more preferably, a
As shown in FIG. 3, the
However, the cover member of the present embodiment is configured as a plate structure, but this is only an example, it is also possible to configure a small module for pressing each sealing member individually.
In addition, although the lower surface of the lid member is configured in a planar shape in FIG. 3, the pressing portion of the sealing member may be modified so as to form a separate protrusion so as to effectively press the sealing member.
Furthermore, in the present embodiment, the sealing member is configured to press the sealing member by using the weight of the cover member, but the cover member may be coupled using a separate fastening member so that the sealing member may be fastened in a pressurized state.
Hereinafter, the manufacturing method of the above-described embodiment will be described in detail with reference to FIGS. 4 and 5.
FIG. 4 is a flowchart illustrating a procedure of manufacturing a gas supply unit of the chemical vapor deposition apparatus of FIG. 2, and FIG. 5 is a cross-sectional view schematically showing the process performed in each step of FIG. 4.
First, the first plate and the second plate are processed (S10). In this case, a plurality of first through
When the
In this case, as shown in FIG. 4, the
The brazing process is performed by injecting filler metal into the first through
When the brazing process is completed, a process of flattening the bottom surface of the
At this time, foreign matters such as metal dust generated during the planarization may flow into the
As described above, since the gas supply unit according to the present embodiment may selectively remove the
On the other hand, separate from the
Here, the forming of the third through
And, the mounting
In this manufacturing example, the processing of the third through
In addition, in the above description after the step of processing and cleaning the
On the other hand, after brazing the
Alignment of the
When the position of the
When the
When the sealing
At this time, the installed
Meanwhile, when the
As such, in the case of the present embodiment, the brazing process is minimized, and thus it is possible to easily manufacture. In addition, it is possible to dismantle the fourth plate, the third plate, and the like to perform maintenance and cleaning operations of the first gas chamber and the second gas chamber.
Claims (9)
A second plate installed above the first plate;
A first tube having both ends brazed to the first plate and the second plate, respectively;
A second tube brazing bonded to the first plate and the second plate, respectively, and extending upward;
A third plate having a plurality of through-holes through which the second tube passes, and installed on an upper side of the second plate; And,
A sealing member installed on an upper surface of the third plate to maintain an airtightness between the through hole and the second tube;
An upper end of the first tube communicates with a first gas chamber formed between the second plate and the third plate, and an upper end of the second tube communicates with a second gas chamber formed above the third plate. Gas supply unit of the chemical vapor deposition apparatus installed to.
The sealing member is made of an elastic material, gas supply unit of the chemical vapor deposition apparatus, characterized in that consisting of O-ring (O-ring).
The gas supply unit of the chemical vapor deposition apparatus seated on the upper side of the third plate, further comprising a cover plate for pressing the sealing member.
The gas supply unit of the chemical vapor deposition apparatus, characterized in that the upper surface of the third plate is formed with a seating portion for mounting the sealing member along the circumference of the through hole.
The seating unit gas supply unit of the chemical vapor deposition apparatus, characterized in that for forming a slope inclined downward toward the through-hole direction.
Forming a first gas chamber by seating the third plate on the upper side of the second plate such that an upper end of the second tube is inserted into a through hole inside the third plate;
Installing a sealing member on the upper side of the third plate to maintain the airtightness between the through hole and the second tube;
Pressing the sealing member by installing a cover member on an upper side of the third plate; And,
And installing a fourth plate above the cover member to form a second gas chamber.
The first tube is a gas supply of the chemical vapor deposition apparatus is installed to form a supply flow path of the gas contained in the first gas chamber, the second tube is formed to form a supply flow path of the gas accommodated in the second gas chamber. Unit manufacturing method.
The sealing member is a gas supply unit manufacturing method of a chemical vapor deposition apparatus, characterized in that using the O-ring (O-ring) made of an elastic material.
Further comprising the step of manufacturing the third plate, the step of manufacturing the third plate
Forming the through hole in the third plate in a shape corresponding to the arrangement of the second tube; and
Method of manufacturing a gas supply unit of a chemical vapor deposition apparatus comprising the step of processing the mounting portion along the circumference of the through hole.
And prior to seating the third plate on the upper side of the second plate, removing foreign substances remaining on the upper side of the second plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020100087146A KR20120025643A (en) | 2010-09-06 | 2010-09-06 | A gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020100087146A KR20120025643A (en) | 2010-09-06 | 2010-09-06 | A gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing thereof |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020120054690A Division KR101255644B1 (en) | 2012-05-23 | 2012-05-23 | A gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing thereof |
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Publication Number | Publication Date |
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KR20120025643A true KR20120025643A (en) | 2012-03-16 |
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KR1020100087146A KR20120025643A (en) | 2010-09-06 | 2010-09-06 | A gas supply unit of a chemical vapor deposition apparatus and a method for manufacturing thereof |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106601580A (en) * | 2015-10-19 | 2017-04-26 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Air inlet mechanism and reaction cavity |
KR20180043005A (en) * | 2016-10-19 | 2018-04-27 | 주식회사 케이씨텍 | Nozzle for spraying co2 |
CN112292480A (en) * | 2018-04-12 | 2021-01-29 | Beneq有限公司 | Nozzle head and apparatus |
-
2010
- 2010-09-06 KR KR1020100087146A patent/KR20120025643A/en active Application Filing
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106601580A (en) * | 2015-10-19 | 2017-04-26 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Air inlet mechanism and reaction cavity |
KR20180043005A (en) * | 2016-10-19 | 2018-04-27 | 주식회사 케이씨텍 | Nozzle for spraying co2 |
CN112292480A (en) * | 2018-04-12 | 2021-01-29 | Beneq有限公司 | Nozzle head and apparatus |
CN112292480B (en) * | 2018-04-12 | 2023-03-10 | Beneq有限公司 | Nozzle head and apparatus |
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