CN101145498A - Gas injection device - Google Patents
Gas injection device Download PDFInfo
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- CN101145498A CN101145498A CNA2006101129763A CN200610112976A CN101145498A CN 101145498 A CN101145498 A CN 101145498A CN A2006101129763 A CNA2006101129763 A CN A2006101129763A CN 200610112976 A CN200610112976 A CN 200610112976A CN 101145498 A CN101145498 A CN 101145498A
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Abstract
The invention discloses a gas injection device used to supply working gases to a reaction chamber, which comprises a nozzle equipped on a medium window of the reaction chamber. The nozzle comprises an inner tube and an outer tube, which are sheathed together, wherein the outer tube is fixed on the medium window, the inner tube can rotate inside the outer tube, the inner tube is provided with a bottom inner gas outlet on the bottom wall and a side inner gas outlet on the side wall, the outer tube is provided with a bottom outer gas outlet on the bottom wall and a side outer gas outlet on the side wall. By regulating the angle of the inner tube with respect to the outer tube, the degrees of the coincidence between the bottom inner gas outlet and the bottom outer gas outlet and between the side inner gas outlet and the side outer gas outlet are changed, thereby realizing the one-way gas supply, two-zone gas injection and the control of flow ratio of the two-zone inlet gases. The invention has simple structure and low cost, is particularly suitable for the use in gas supply system for the process equipment of semiconductor silicon wafers and also suitable for the gas supply in other places.
Description
Technical field
The present invention relates to a kind of gas distributed system, relate in particular to a kind of feeder of semi-conductor silicon chip process equipment.
Background technology
In the semiconductor wafer course of processing, process gas injects reaction chamber and diffusion by gas injection apparatus, produces plasma and come etching to be positioned at the wafer surface of chamber interior under the high-frequency electric field effect.
As shown in Figure 1, in semiconductor fabrication processes, spray into process gas to reaction chamber 1 by the nozzle 3 that is located on the reaction chamber 1 top medium forms 2.
In reaction chamber inside,, will cause etch rate and uniformity on the wafer surface of chamber interior that bigger variation is arranged if distribution of gas is inhomogeneous.Along with technological progress, the volume of reaction chamber also increases accordingly at present, and this makes even distribution of gas in the reaction chamber become difficult more, and therefore design can obtain the gas injection apparatus of uniform gas distribution, seems very important.
At present, in the process gas injected system that adopts in the semiconductor etching device, process gas distributes in order to obtain comparatively uniformly in reaction chamber, and the gas injection apparatus of various structures is arranged:
As shown in Figure 2, be a kind of nozzle 3 of the prior art, this nozzle is single district intake method, the bottom is that a plurality of apertures spray to different directions, simple in structure, can satisfy technological requirement under eight inches, along with the size increase of wafer, single district nozzle can not satisfy the requirement of technology, needs to adopt two-region and above nozzle to meet the demands;
As shown in Figure 3, be another kind of nozzle 3 structures of prior art, this nozzle is regulated the ratio of the jet amount of the inside and outside gas outlet of nozzle by one tunnel air inlet passing ratio valve or two mass flow controllers, the two-region air inlet can be realized, and the ratio of two-region gas can be regulated.This nozzle air current uniformity is better, can satisfy the requirement of 12 inches wafer engraving technology.But because this structure needs adding proportion valve or mass flow controller, complex structure, expense height.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, cost is low, and can realize two-region air inlet and adjustable gas injection apparatus.
The objective of the invention is to be achieved through the following technical solutions:
Gas injection apparatus of the present invention is used for supplying process gas to reaction chamber, comprises nozzle, nozzle is located on the medium forms of reaction chamber, and described nozzle is provided with gas passage, also comprises core and outer tube, described core is provided with interior gas vent, and described outer tube is provided with outer gas vent; Process gas arrives reaction chamber by gas passage, interior gas vent, outer gas vent successively;
Described core and outer tube flexibly connect, flow and direction that the relative position scalable process gas of adjustment core and outer tube enters reaction chamber.
Described core is interior pipe, and described interior pipe is provided with gas passage and interior gas vent;
Described outer tube and interior pipe flexibly connect, flow and direction that the relative position scalable process gas of adjustment outer tube and interior pipe enters reaction chamber.
Described outer tube and interior pipe box are connected together, and outer tube is fixed on the medium forms, and interior pipe can change in the outer tube inward turning, the anglec of rotation of pipe in regulating, the relative position of gas vent and outer gas vent in can changing.
The diapire of pipe is provided with gas vent in the bottom in described, and the sidewall of described interior pipe is provided with gas vent in the sidepiece;
The diapire of described outer tube is provided with the outer gas vent in bottom, and the sidewall of described outer tube is provided with the outer gas vent of sidepiece;
In the described bottom outside gas vent and the bottom gas vent can overlap fully or staggered;
The interior gas vent of described sidepiece can overlap fully with the outer gas vent of sidepiece or be staggered; And,
When gas vent outside gas vent in the bottom and the bottom overlapped fully or be staggered, gas vent interlocked fully with the outer gas vent of sidepiece or overlaps in the sidepiece.
In the described bottom outside gas vent and the bottom in gas vent and the sidepiece gas vent and sidepiece outward the quantity of gas vent have a plurality of respectively.
In the described bottom outside gas vent and the bottom in gas vent and the sidepiece gas vent and sidepiece outward the quantity of gas vent be respectively 3～8.
The parallel axes of the direction of gas vent and nozzle outside gas vent and the bottom in the described bottom.
The angle of the axis of the direction of the outer gas vent of gas vent and sidepiece and nozzle is 30 °～90 ° in the described sidepiece.
Be provided with sealing ring between pipe and the outer tube in described.
Be provided with fastener between described outer tube and the medium forms; Also be provided with sealing ring between described outer tube and the medium forms.
As seen from the above technical solution provided by the invention, gas injection apparatus of the present invention, owing to comprise core and outer tube, outer tube and core flexibly connect, flow and direction that the relative position scalable process gas of adjustment outer tube and core enters reaction chamber, simple in structure, easy to adjust.
Owing to be provided with gas vent in the bottom as the diapire of the interior pipe of core, the sidewall of interior pipe is provided with gas vent in the sidepiece again; The diapire of outer tube is provided with the outer gas vent in bottom, and the sidewall of outer tube is provided with the outer gas vent of sidepiece; By the different angles of pipe in outer tube in regulating, change the registration of gas vent outside interior gas vent in bottom and the bottom, and the registration of interior gas vent of sidepiece and the outer gas vent of sidepiece, realize single channel air feed, two-region air inlet, and scalable two-region charge flow rate ratio.
The present invention is simple in structure, cost is low, is particularly useful for also being applicable to the air feed of other occasion in the air supply system of semi-conductor silicon chip process equipment.
Description of drawings
Fig. 1 is the structural representation of reaction chamber in the prior art;
Fig. 2 is the structure of nozzle schematic diagram of the gas injection apparatus of prior art one;
Fig. 3 is the structural representation of the gas injection apparatus of prior art two;
Fig. 4 is the structure diagram of gas injection apparatus specific embodiment of the present invention;
Fig. 5 is the distribution schematic diagram of the interior gas vent of interior pipe;
Fig. 6 is the distribution schematic diagram of the outer gas vent of outer tube;
Fig. 7 a1 be in the bottom outside gas vent and the bottom gas vent staggered fully, and the distribution schematic diagram of gas vent when gas vent overlaps fully outward with sidepiece in the sidepiece;
Fig. 7 a2 is under Fig. 7 a1 state, gas ejection state reference map;
Fig. 7 b1 be in the bottom outside gas vent and the bottom gas vent partially overlap and the distribution schematic diagram of gas vent when gas vent partially overlaps with sidepiece in the sidepiece outward;
Figure 76 2 is under Fig. 7 b1 state, gas ejection state reference map;
Fig. 7 c1 be in the bottom outside gas vent and the bottom gas vent overlap and the distribution schematic diagram when gas vent interlocks fully with the outer gas vent of sidepiece in the sidepiece fully;
Fig. 7 c2 is under Fig. 7 c1 state, gas ejection state reference map.
Embodiment
The preferable embodiment of gas injection apparatus of the present invention comprises nozzle as shown in Figure 4, and nozzle is located on the medium forms 2 of reaction chamber, is used for to reaction chamber for process gas.Described reaction chamber can be the reaction chamber of inductance coupled plasma device, also can be the reaction chamber of other semiconductor processing equipment, or other cavity.
Described nozzle is provided with gas passage, also comprises core and outer tube 5, and described core is provided with interior gas vent, and described outer tube 5 is provided with outer gas vent; Process gas arrives reaction chamber by gas passage, interior gas vent, outer gas vent successively;
Described core and outer tube 5 flexibly connect flow and direction that the relative position scalable process gas of adjustment core and outer tube 5 enters reaction chamber.
Described core can be different shapes such as bulk, column, and preferably tubulose is interior pipe 4.Pipe 4 is provided with gas passage 8 and interior gas vent in described, and described outer tube 5 is provided with outer gas vent; Process gas arrives reaction chamber by gas passage 8, interior gas vent, outer gas vent successively.
Described outer tube 5 flexibly connects flow and direction that the relative position scalable process gas of adjustment outer tube 5 and interior pipe 4 enters reaction chamber with interior pipe 4.
The mode that flexibly connects has varied, and preferably outer tube 5 and interior pipe 4 connect together, and outer tube 5 is fixed on the medium forms 2, and interior pipe 4 can rotate in outer tube 5, the anglec of rotation of pipe 4 in regulating, the relative position of gas vent and outer gas vent in can changing.When outer tube 5 connects together with interior pipe 4, also can adopt the mode of sliding vertically, or other manner.
As shown in Figure 5, the diapire of interior pipe 4 is provided with gas vent 9 in 4 bottoms, and the sidewall of interior pipe 4 is provided with gas vent 10 in 4 sidepieces.
As shown in Figure 6, the diapire of outer tube 5 is provided with gas vent 11 outside 4 bottoms, and the sidewall of outer tube 5 is provided with the outer gas vent 12 of 4 sidepieces.
Equally, gas vent 10 is corresponding with the position of the outer gas vent 12 of sidepiece in the sidepiece, can overlap fully; And between the adjacent gas vent certain spacing is arranged, the ratio of spacing is greater than the diameter of gas vent, so that gas vent 10 can rotate to staggered fully state with the outer gas vent 12 of sidepiece in the sidepiece.
In addition, the position of gas vent 10 in the sidepiece in the bottom on the diapire of interior pipe 4 on gas vent 9 and the sidewall, projection on the diapire circumferential plane, in the bottom in gas vent 9 and the corresponding sidepiece gas vent 10 be arranged on the same radial direction:
The outer gas vent 12 of sidepiece outside the bottom on the diapire of outer tube 5 on gas vent 11 and the sidewall is interlaced arrangement then.
Like this, when gas vent 11 overlapped fully outside gas vent in the bottom 9 and the bottom, gas vent 10 was staggered fully with the outer gas vent 12 of sidepiece in the sidepiece; When gas vent 11 outside gas vent in the bottom 9 and the bottom was staggered fully, gas vent 10 overlapped fully with the outer gas vent 12 of sidepiece in the sidepiece.
Shown in Fig. 7 a1, Fig. 7 a2, Fig. 7 b1, Figure 76 2, Fig. 7 c1, Fig. 7 c2, when gas vent 11 outside gas vent in the bottom 9 and the bottom was staggered fully, gas vent 10 overlapped fully with the outer gas vent 12 of sidepiece in the sidepiece.At this moment, the bottom gas vent complete closed of nozzle, the sidepiece gas vent reaches maximum, and gas is all sprayed by the sidepiece of nozzle.
Gas vent 11 overlaps fully outside gas vent 9 and the bottom in the bottom, when gas vent 10 interlocks fully with the outer gas vent 12 of sidepiece in the sidepiece, the sidepiece gas vent complete closed of nozzle, the bottom gas vent reaches maximum, and gas is all sprayed by the bottom of nozzle.
In the described bottom in gas vent 9 and outer gas vent 11 in bottom and the sidepiece gas vent 10 and sidepiece outward the quantity of gas vent 12 can have a plurality ofly as required respectively, be good generally with 3～8.
In the bottom of nozzle the direction of gas vent 9 and the outer gas vent 11 in bottom generally and the parallel axes of nozzle get final product, be mainly the middle part air feed of reaction chamber.Also can become certain included angle as required, in the described bottom outside gas vent 9 and the bottom diameter of gas vent 11 be generally 1mm～5mm, as required, also can adopt other size.
Be provided with sealing ring 6 between pipe 4 and the outer tube 5 in described, still keep good sealing in the process with pipe 4 in guaranteeing and outer tube 5 rotations.
Be provided with fastener 7 between described outer tube 5 and the medium forms 2, and be provided with sealing ring 6 between described outer tube 5 and the medium forms 2, fixedly secure on medium forms 2 to guarantee nozzle, and guarantee good sealing.
The present invention is by the different angles of pipe in outer tube in regulating, change the registration of gas vent outside interior gas vent in bottom and the bottom, and the registration of interior gas vent of sidepiece and the outer gas vent of sidepiece, realize single channel air feed, two-region air inlet, and scalable two-region charge flow rate ratio.
Simple in structure, cost is low, be particularly useful for also being applicable to the air feed of other occasion in the air supply system of semi-conductor silicon chip process equipment.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (10)
1. gas injection apparatus, be used for to reaction chamber for process gas, comprise nozzle, nozzle is located on the medium forms of reaction chamber, it is characterized in that described nozzle is provided with gas passage, also comprise core and outer tube, described core is provided with interior gas vent, and described outer tube is provided with outer gas vent; Process gas arrives reaction chamber by gas passage, interior gas vent, outer gas vent successively;
Described core and outer tube flexibly connect, flow and direction that the relative position scalable process gas of adjustment core and outer tube enters reaction chamber.
2. gas injection apparatus according to claim 1 is characterized in that, described core is interior pipe, and described interior pipe is provided with gas passage and interior gas vent;
Described outer tube and interior pipe flexibly connect, flow and direction that the relative position scalable process gas of adjustment outer tube and interior pipe enters reaction chamber.
3. gas injection apparatus according to claim 2 is characterized in that, described outer tube and interior pipe box are connected together, outer tube is fixed on the medium forms, interior pipe can change in the outer tube inward turning, the anglec of rotation of pipe in regulating, the relative position of gas vent and outer gas vent in can changing.
4. gas injection apparatus according to claim 3 is characterized in that, the diapire of described interior pipe is provided with gas vent in the bottom, and the sidewall of described interior pipe is provided with gas vent in the sidepiece;
The diapire of described outer tube is provided with the outer gas vent in bottom, and the sidewall of described outer tube is provided with the outer gas vent of sidepiece;
In the described bottom outside gas vent and the bottom gas vent can overlap fully or staggered;
The interior gas vent of described sidepiece can overlap fully with the outer gas vent of sidepiece or be staggered; And,
When gas vent outside gas vent in the bottom and the bottom overlapped fully or be staggered, gas vent interlocked fully with the outer gas vent of sidepiece or overlaps in the sidepiece.
5. gas injection apparatus according to claim 4 is characterized in that, in the described bottom outside gas vent and the bottom in gas vent and the sidepiece gas vent and sidepiece outward the quantity of gas vent have a plurality of respectively.
6. gas injection apparatus according to claim 5 is characterized in that, in the described bottom outside gas vent and the bottom in gas vent and the sidepiece gas vent and sidepiece outward the quantity of gas vent be respectively 3～8.
7. gas injection apparatus according to claim 4 is characterized in that, the parallel axes of the direction of gas vent and nozzle outside gas vent and the bottom in the described bottom.
8. gas injection apparatus according to claim 4 is characterized in that, the angle of the axis of the direction of the outer gas vent of gas vent and sidepiece and nozzle is 30 °～90 ° in the described sidepiece.
9. gas injection apparatus according to claim 3 is characterized in that, is provided with sealing ring between described interior pipe and the outer tube.
10. gas injection apparatus according to claim 3 is characterized in that, is provided with fastener between described outer tube and the medium forms; Also be provided with sealing ring between described outer tube and the medium forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101129763A CN100521074C (en) | 2006-09-13 | 2006-09-13 | Gas injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101129763A CN100521074C (en) | 2006-09-13 | 2006-09-13 | Gas injection device |
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| Publication Number | Publication Date |
|---|---|
| CN101145498A true CN101145498A (en) | 2008-03-19 |
| CN100521074C CN100521074C (en) | 2009-07-29 |
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|---|---|---|---|
| CNB2006101129763A Active CN100521074C (en) | 2006-09-13 | 2006-09-13 | Gas injection device |
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| CN (1) | CN100521074C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226662A (en) * | 2011-06-02 | 2011-10-26 | 江苏宝得换热设备有限公司 | Heat exchanger with adjustable flow |
| CN106711066A (en) * | 2016-12-27 | 2017-05-24 | 武汉华星光电技术有限公司 | Dry etching reaction device and gas nozzle for dry etching reaction |
| CN107598781A (en) * | 2017-09-04 | 2018-01-19 | 盐城市丰特铸造机械有限公司 | A kind of adjustment structure and adjusting method of shot-blasting machine orienting cover window size |
| CN107993914A (en) * | 2016-10-26 | 2018-05-04 | 中微半导体设备(上海)有限公司 | Gas flow adjusting means and its adjusting method |
| CN109837527A (en) * | 2017-11-24 | 2019-06-04 | 北京北方华创微电子装备有限公司 | A kind of admission gear |
| CN111142586A (en) * | 2020-01-03 | 2020-05-12 | 湖南农业大学 | Control system of fog planting device |
| CN112342529A (en) * | 2020-09-24 | 2021-02-09 | 杭州盾源聚芯半导体科技有限公司 | Injection pipe with connector |
| CN114121582A (en) * | 2020-08-27 | 2022-03-01 | 中微半导体设备(上海)股份有限公司 | Plasma processing apparatus and method of operating the same |
-
2006
- 2006-09-13 CN CNB2006101129763A patent/CN100521074C/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226662A (en) * | 2011-06-02 | 2011-10-26 | 江苏宝得换热设备有限公司 | Heat exchanger with adjustable flow |
| CN102226662B (en) * | 2011-06-02 | 2016-01-13 | 江苏宝得换热设备有限公司 | The heat exchanger that flow is adjustable |
| CN107993914A (en) * | 2016-10-26 | 2018-05-04 | 中微半导体设备(上海)有限公司 | Gas flow adjusting means and its adjusting method |
| CN107993914B (en) * | 2016-10-26 | 2019-09-06 | 中微半导体设备(上海)股份有限公司 | Gas flow adjusting means and its adjusting method |
| CN106711066A (en) * | 2016-12-27 | 2017-05-24 | 武汉华星光电技术有限公司 | Dry etching reaction device and gas nozzle for dry etching reaction |
| CN107598781A (en) * | 2017-09-04 | 2018-01-19 | 盐城市丰特铸造机械有限公司 | A kind of adjustment structure and adjusting method of shot-blasting machine orienting cover window size |
| CN109837527A (en) * | 2017-11-24 | 2019-06-04 | 北京北方华创微电子装备有限公司 | A kind of admission gear |
| CN111142586A (en) * | 2020-01-03 | 2020-05-12 | 湖南农业大学 | Control system of fog planting device |
| CN114121582A (en) * | 2020-08-27 | 2022-03-01 | 中微半导体设备(上海)股份有限公司 | Plasma processing apparatus and method of operating the same |
| CN114121582B (en) * | 2020-08-27 | 2023-10-31 | 中微半导体设备(上海)股份有限公司 | Plasma processing apparatus and method of operating the same |
| CN112342529A (en) * | 2020-09-24 | 2021-02-09 | 杭州盾源聚芯半导体科技有限公司 | Injection pipe with connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100521074C (en) | 2009-07-29 |
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Address after: 100176 Beijing economic and Technological Development Zone, Wenchang Road, No. 8, No. Patentee after: Beijing North China microelectronics equipment Co Ltd Address before: 100016, building 2, block M5, No. 1 East Jiuxianqiao Road, Beijing, Chaoyang District Patentee before: Beifang Microelectronic Base Equipment Proces Research Center Co., Ltd., Beijing |