JPH04145619A - Vapor growth device - Google Patents

Vapor growth device

Info

Publication number
JPH04145619A
JPH04145619A JP26982790A JP26982790A JPH04145619A JP H04145619 A JPH04145619 A JP H04145619A JP 26982790 A JP26982790 A JP 26982790A JP 26982790 A JP26982790 A JP 26982790A JP H04145619 A JPH04145619 A JP H04145619A
Authority
JP
Japan
Prior art keywords
valve
raw material
vacuum
gas supply
piping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP26982790A
Other languages
Japanese (ja)
Inventor
Hiroya Kubota
久保田 博也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP26982790A priority Critical patent/JPH04145619A/en
Publication of JPH04145619A publication Critical patent/JPH04145619A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent contamination of a piping by making an evacuation switching valve adjacent to a raw gas supply valve, by piping for the evacuation switching valve and by evacuating a piping alone between a stopping valve and the raw gas supply valve. CONSTITUTION:When a raw material containing container 1 is exchanged, a stopping valve 2 is closed, an evacuation switching valve 5 is opened and other valves such as an inject valve 8 and a vent valve 9 are closed. Remaining raw gas in a raw gas supply piping 3, especially between a raw gas supply valve 4 and the stopping valve 2 is removed by a vacuum pump 12 and air which entered when the container 1 is removed is eliminated. Returning from a vacuum state to a normal pressure is carried out by closing an evacuation switching valve 5 and by opening a purge valve 14 to supply inert gas. Contamination of a piping used during vapor growth is prevented in this way, thereby enabling good vapor growth.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、気相成長装置、特に、化合物半導体などの結
晶薄膜を基板上に成長する気相成長装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vapor phase growth apparatus, and particularly to a vapor phase growth apparatus for growing a crystalline thin film of compound semiconductor or the like on a substrate.

〔従来の技術〕[Conventional technology]

第3図は従来の気相成長装置の一例を示す系統図である
FIG. 3 is a system diagram showing an example of a conventional vapor phase growth apparatus.

第3図に示す気相成長装置は、気相成長用の各種原料収
納容器1と、原料収納容器1に一対のストップバルブ2
を介して接続した原料ガス供給配管3と、原料ガス供給
配管3にインジェクトバルブ8を介して接続され原料ガ
スを反応室10内に供給するインジェクト配管16と、
反応室10に接続された排気配管11と、原料ガス供給
配管3にベントバルブ9を介して接続され原料ガスを反
応室10内に供給せずそのまま排気するベント配管17
と、キャリアガスを流量制御するマスフローコントロー
ラ13と−のストップバルブ2の間の原料ガス供給配管
3と他のストップバルブ2とインジェクトバルブ8およ
びベントバルブ9の間の原料ガス供給配管3に設けられ
た一対の原料ガス供給バルブ4と、一対の原料ガス供給
バルブ4の間に設けられたバイパスバルブとを備えてい
る。
The vapor phase growth apparatus shown in FIG.
an injection pipe 16 connected to the raw material gas supply pipe 3 via an injection valve 8 and supplying the raw material gas into the reaction chamber 10;
An exhaust pipe 11 connected to the reaction chamber 10 and a vent pipe 17 that is connected to the raw material gas supply pipe 3 via a vent valve 9 and exhausts the raw material gas without supplying it to the reaction chamber 10.
and the mass flow controller 13 that controls the flow rate of the carrier gas, and the source gas supply piping 3 between the stop valve 2 and the other stop valve 2, the injection valve 8, and the vent valve 9. A pair of raw material gas supply valves 4 and a bypass valve provided between the pair of raw material gas supply valves 4 are provided.

キャリアガスをマスフローコントローラ13により流量
制御して原料収納容器1に供給し、液体あるいは個体状
態の原料はバブリングにより気化し原料ガス供給配管3
に供給され、インジェクト配管16を経て反応室10内
に供給され反応室10内の基板上に化合物半導体などの
結晶薄膜の成長を行う。
The flow rate of the carrier gas is controlled by the mass flow controller 13 and it is supplied to the raw material storage container 1, and the raw material in a liquid or solid state is vaporized by bubbling, and the raw material gas supply pipe 3
is supplied into the reaction chamber 10 through the injection pipe 16, and a crystal thin film of compound semiconductor or the like is grown on the substrate in the reaction chamber 10.

原料収納容器1は原料ガス供給バルブ4とストップバル
ブ2との間で図示しな、い継手によって接続されており
、交換の時はこの継手より取外して行う。この交換の前
後では原料ガス供給配管3は大気開放状態となるなめ、
原料ガス供給配管3内より原料ガスを除去しておくこと
が必要である。
The raw material storage container 1 is connected between the raw material gas supply valve 4 and the stop valve 2 by a joint (not shown), and is removed from this joint when replacing the container. Before and after this exchange, the raw material gas supply pipe 3 is open to the atmosphere.
It is necessary to remove the source gas from inside the source gas supply pipe 3.

このため、ストップバルブ2を確実に閉め原料ガス供給
バルブ4とバイパスバルブ6を開けて、ベント配管17
を経て真空ポンプ12により真空引きする方法がとられ
ている。
For this reason, be sure to close the stop valve 2, open the raw material gas supply valve 4 and the bypass valve 6, and then open the vent pipe 17.
A method of evacuation using a vacuum pump 12 is used.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来の気相成長装置は、原料収納容器1の交換
時の原料ガス供給配管3の真空引きを気相成長時に使用
する配管を経て行っているため、配管内を空気等で汚染
してしまうという欠点があった。
In the conventional vapor phase growth apparatus described above, when replacing the raw material storage container 1, the source gas supply pipe 3 is evacuated through the pipe used during vapor phase growth, so the inside of the pipe may be contaminated with air, etc. There was a drawback that it could be stored away.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の気相成長装置は、ストップバルブおよび継手を
介して接続される原料収納容器より原料ガス供給配管及
びインジェクトメイン配管を経て反応室内に原料ガスを
供給し、反応室内の基板上に結晶成長を行う気相成長装
置において、前記原料収納容器に対応する原料ガス供給
バルブに隣接して接続された真空引き専用切り換えバル
ブと、前記真空引き専用切り換えバルブに相対する位置
に接続されたパージ専用バルブと、前記真空引き専用切
り換えバルブに接続する真空引き専用配管と、前記パー
ジ専用バルブに接続するパージ専用配管と、前記真空引
き専用配管の末端に接続された真空ポンプとを含んで構
成される。
The vapor phase growth apparatus of the present invention supplies raw material gas into a reaction chamber from a raw material storage container connected via a stop valve and a joint through a raw material gas supply pipe and an injection main pipe, and deposits crystals on a substrate in the reaction chamber. In a vapor phase growth apparatus that performs growth, a vacuum-only switching valve connected adjacent to a source gas supply valve corresponding to the raw material storage container, and a purge-only switching valve connected at a position opposite to the vacuum-only switching valve. It is configured to include a valve, a vacuum-only piping connected to the vacuum-only switching valve, a purge-only piping connected to the purge-only valve, and a vacuum pump connected to the end of the vacuum-only piping. .

本発明の気相成長装置は、ストップバルブおよび継手を
介して接続される原料収納容器より原料ガス供給配管及
びインジェクトメイン配管を経て反応室内に原料ガスを
供給し、反応室内の基板上に結晶成長を行う気相成長装
置において、前記原料収納容器に対応する前記原料ガス
供給配管に隣接して接続された原料供給バルブに相対す
る位置に設置された真空引き専用切り換えバルブと、前
記真空引き専用切り換えバルブに接続する真空引き専用
配管と、前記真空引き専用配管の末端に接続された真空
ポンプとを含んで構成される。
The vapor phase growth apparatus of the present invention supplies raw material gas into a reaction chamber from a raw material storage container connected via a stop valve and a joint through a raw material gas supply pipe and an injection main pipe, and deposits crystals on a substrate in the reaction chamber. In a vapor phase growth apparatus that performs growth, a vacuum-only switching valve installed at a position opposite to a raw material supply valve connected adjacent to the raw material gas supply pipe corresponding to the raw material storage container; It is configured to include a dedicated vacuum piping connected to the switching valve, and a vacuum pump connected to the end of the vacuum dedicated piping.

〔実施例〕〔Example〕

次に、本発明の実施例について、図面を参照して詳細に
説明する。
Next, embodiments of the present invention will be described in detail with reference to the drawings.

第1図は本発明の一実施例を示す系統図である。FIG. 1 is a system diagram showing one embodiment of the present invention.

原料ガス供給バルブ4とストップバルブ2との間で原料
ガス供給バルブ4に隣接して真空引き専用切り換えバル
ブ5が設けられ、真空引き専用切り換えバルブ5に相対
する位置にパージ専用バルブ14が接続されている。
A switching valve 5 exclusively for evacuation is provided between the source gas supply valve 4 and the stop valve 2 and adjacent to the source gas supply valve 4, and a purge only valve 14 is connected at a position opposite to the switching valve 5 only for evacuation. ing.

原料収納容器1には例えばV族有機金属原料等が収納さ
れ、ストップバルブ2を介して原料ガス供給配管3と接
続されている。原料ガス供給バルブ4の間にはバイパス
バルブ6が隣接して接続されている。
The raw material storage container 1 stores, for example, a group V organic metal raw material, and is connected to a raw material gas supply pipe 3 via a stop valve 2 . A bypass valve 6 is connected adjacently between the source gas supply valves 4 .

原料ガス供給装置3にはインジェクトバルブ8とベント
バルブ9を経てインジェクト配管16とベント配管17
が接続されており、インジェクト配管16は反応室10
に接続されベント配管17は直接排気配管11に接続さ
れ、排気配管11には真空ポンプ12が接続されている
。真空引き専用切り換えバルブ5には真空引き専用配管
7が接続されており、真空引き専用配管7末端は真空ポ
ンプ12に接続されている。パージ専用バルブ14には
パージ専用配管15が接続されAr(アルゴン)などの
不活性ガスが供給される。
The raw material gas supply device 3 is connected to an inject pipe 16 and a vent pipe 17 via an inject valve 8 and a vent valve 9.
is connected, and the injection pipe 16 is connected to the reaction chamber 10.
The vent pipe 17 is directly connected to the exhaust pipe 11, and the vacuum pump 12 is connected to the exhaust pipe 11. A vacuum-only switching valve 5 is connected to a vacuum-only pipe 7, and the end of the vacuum-only pipe 7 is connected to a vacuum pump 12. A purge-only pipe 15 is connected to the purge-only valve 14, and an inert gas such as Ar (argon) is supplied thereto.

原料収納容器1の交換を行う際は、ストップバルブ2を
確実に閉め、真空引き専用切り換えバルブ5を開け、イ
ンジェクトバルブ8やベントパル19等地のバルブは閉
める。真空ポンプ12により原料ガス供給配管3内、特
に原料ガス供給バルブ4とストップバルブ2の間は真空
引きされ残留原料ガスを除去し、また、原料収納容器1
を取り外した際に侵入した空気を除去する。真空状態か
ら常圧への復帰は、真空引き専用切り換えバルブ5を閉
めパージ専用バルブ14を開けて不活性ガスを供給して
行う。
When replacing the raw material storage container 1, the stop valve 2 is securely closed, the vacuum switching valve 5 is opened, and the valves such as the inject valve 8 and vent pal 19 are closed. The inside of the raw material gas supply pipe 3, especially between the raw material gas supply valve 4 and the stop valve 2, is evacuated by the vacuum pump 12 to remove residual raw material gas, and the raw material storage container 1
Remove the air that entered when the was removed. Returning from a vacuum state to normal pressure is performed by closing the vacuum switching valve 5, opening the purge valve 14, and supplying inert gas.

第2図は本発明の他の実施例を示す系統図である。FIG. 2 is a system diagram showing another embodiment of the present invention.

原料収納容器1には例えばV族有機金属原料等が収納さ
れ、ストップバルブ2を介して原料ガス供給配管3と接
続されている。原料ガス供給配管3には原料ガス供給バ
ルブ4が接続されており、原料ガス供給バルブ4に相対
する位置には真空引き専用切り換えバルブ5が原料ガス
供給配管3に隣接して接続されている。真空引き専用切
り換えバルブ5には真空引き専用配管7が接続されてお
り、真空引き専用配管7末端は真空ポンプ12に接続さ
れている。真空引き専用切り換えバルブ5の間にはバイ
パスバルブ6が隣接して接続されている。原料ガス供給
配管3にはインジェクトバルブ8とベントバルブ9を経
てインジェクト配管16とベント配管17が接続されて
おり、インジェクト配管16は反応室10に接続されベ
ント配管17は直接排気配管11に接続され、排気配管
11には真空ポンプ12が接続されている。
The raw material storage container 1 stores, for example, a group V organic metal raw material, and is connected to a raw material gas supply pipe 3 via a stop valve 2 . A raw material gas supply valve 4 is connected to the raw material gas supply pipe 3 , and a switching valve 5 exclusively for evacuation is connected adjacent to the raw material gas supply pipe 3 at a position opposite to the raw material gas supply valve 4 . A vacuum-only switching valve 5 is connected to a vacuum-only pipe 7, and the end of the vacuum-only pipe 7 is connected to a vacuum pump 12. A bypass valve 6 is connected adjacently between the vacuum switching valves 5. An inject pipe 16 and a vent pipe 17 are connected to the raw material gas supply pipe 3 via an inject valve 8 and a vent valve 9. The inject pipe 16 is connected to the reaction chamber 10, and the vent pipe 17 is directly connected to the exhaust pipe 11. A vacuum pump 12 is connected to the exhaust pipe 11.

原料収納容器1の交換を行う際は、ストップバルブ2を
確実に閉め原料ガス供給バルブ4と真空引き専用切り換
えバルブ5を開け、インジェクトバルブ8やベントパル
19等地のバルブは閉める。真空ポンプ12により原料
ガス供給配管3内は真空引きされ残留原料ガスを除去し
、また、原料収納容器1を取り外した際に侵入した空気
を除去する。
When replacing the raw material storage container 1, the stop valve 2 is securely closed, the raw material gas supply valve 4 and the vacuum switching valve 5 are opened, and the valves such as the injection valve 8 and vent pal 19 are closed. The inside of the raw material gas supply pipe 3 is evacuated by the vacuum pump 12 to remove residual raw material gas, and also to remove air that entered when the raw material storage container 1 was removed.

〔発明の効果〕〔Effect of the invention〕

本発明の気相成長装置は、原料ガス供給バルブに真空引
き専用切り換えバルブを隣接し、真空引き専用切り換え
バルブに真空引き専用配管を接続することにより、スト
ップバルブと原料ガス供給バルブの間の原料ガス供給配
管のみを真空引きすることにより、気相成長時に使用す
る配管を汚染することを防ぐことができるという効果が
ある。
In the vapor phase growth apparatus of the present invention, a switching valve exclusively for vacuuming is adjacent to the source gas supply valve, and a piping exclusively for vacuuming is connected to the switching valve exclusively for vacuuming, so that the source gas can be connected between the stop valve and the source gas supply valve. By evacuating only the gas supply piping, there is an effect that contamination of the piping used during vapor phase growth can be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す系統図、第2図は本発
明の他の実施例を示す系統図、第3図は従来の気相成長
装置の系統図である。 1・・・原料収納容器、2・・・ストップバルブ、3・
・・原料ガス供給配管、4・・・原料ガス供給バルブ、
5・・・真空引き専用切換バルブ、6・・・バイパスバ
ルブ、7・・・真空引き専用配管、8・・・インジェク
トバルブ、9・・・ベントバルブ、10・・・反応室、
11・・・排気配管、12・・・真空ポンプ、13・・
・マスフローコントローラ、14・・・パージ専用バル
ブ、15・・・パージ専用配管、16・・・インジェク
ト配管、17・・・ベント配管。
FIG. 1 is a system diagram showing one embodiment of the present invention, FIG. 2 is a system diagram showing another embodiment of the invention, and FIG. 3 is a system diagram of a conventional vapor phase growth apparatus. 1... Raw material storage container, 2... Stop valve, 3...
... Raw material gas supply piping, 4... Raw material gas supply valve,
5... Vacuum exclusive switching valve, 6... Bypass valve, 7... Vacuum exclusive piping, 8... Inject valve, 9... Vent valve, 10... Reaction chamber,
11... Exhaust piping, 12... Vacuum pump, 13...
-Mass flow controller, 14... Valve for purge, 15... Piping for purge, 16... Inject piping, 17... Vent piping.

Claims (1)

【特許請求の範囲】 1、ストップバルブおよび継手を介して接続される原料
収納容器より原料ガス供給配管及びインジェクトメイン
配管を経て反応室内に原料ガスを供給し、反応室内の基
板上に結晶成長を行う気相成長装置において、前記原料
収納容器に対応する原料ガス供給バルブに隣接して接続
された真空引き専用切り換えバルブと、前記真空引き専
用切り換えバルブに相対する位置に接続されたパージ専
用バルブと、前記真空引き専用切り換えバルブに接続す
る真空引き専用配管と、前記パージ専用バルブに接続す
るパージ専用配管と、前記真空引き専用配管の末端に接
続された真空ポンプとを含むことを特徴とする気相成長
装置。 2、ストップバルブおよび継手を介して接続される原料
収納容器より原料ガス供給配管及びインジェクトメイン
配管を経て反応室内に原料ガスを供給し、反応室内の基
板上に結晶成長を行う気相成長装置において、前記原料
収納容器に対応する前記原料ガス供給配管に隣接して接
続された原料供給バルブに相対する位置に設置された真
空引き専用切り換えバルブと、前記真空引き専用切り換
えバルブに接続する真空引き専用配管と、前記真空引き
専用配管の末端に接続された真空ポンプとを含むことを
特徴とする気相成長装置。
[Claims] 1. A raw material gas is supplied into a reaction chamber from a raw material storage container connected via a stop valve and a joint through a raw material gas supply pipe and an injection main pipe, and crystal growth is performed on a substrate in the reaction chamber. In a vapor phase growth apparatus that performs the above, the vacuum switching valve is connected adjacent to the raw material gas supply valve corresponding to the raw material storage container, and the purge switching valve is connected to a position opposite to the vacuum switching valve. and a vacuum-only piping connected to the vacuum-only switching valve, a purge-only piping connected to the purge-only valve, and a vacuum pump connected to an end of the vacuum-only piping. Vapor phase growth equipment. 2. A vapor phase growth apparatus that supplies raw material gas into a reaction chamber from a raw material storage container connected via a stop valve and a joint through a raw material gas supply pipe and an injection main pipe, and grows crystals on a substrate in the reaction chamber. , a vacuum-only switching valve installed at a position opposite to a raw material supply valve connected adjacent to the raw material gas supply pipe corresponding to the raw material storage container; and a vacuum-only switching valve connected to the vacuum-only switching valve. A vapor phase growth apparatus comprising a dedicated pipe and a vacuum pump connected to an end of the vacuum pipe.
JP26982790A 1990-10-08 1990-10-08 Vapor growth device Pending JPH04145619A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26982790A JPH04145619A (en) 1990-10-08 1990-10-08 Vapor growth device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26982790A JPH04145619A (en) 1990-10-08 1990-10-08 Vapor growth device

Publications (1)

Publication Number Publication Date
JPH04145619A true JPH04145619A (en) 1992-05-19

Family

ID=17477732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26982790A Pending JPH04145619A (en) 1990-10-08 1990-10-08 Vapor growth device

Country Status (1)

Country Link
JP (1) JPH04145619A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004207713A (en) * 2002-12-13 2004-07-22 Tokyo Electron Ltd Treatment equipment and treatment method
JP2005051205A (en) * 2003-06-11 2005-02-24 Asm Internatl Nv Gas supply system, valve assembly and method for forming reactant pulse by operating valve assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004207713A (en) * 2002-12-13 2004-07-22 Tokyo Electron Ltd Treatment equipment and treatment method
JP2005051205A (en) * 2003-06-11 2005-02-24 Asm Internatl Nv Gas supply system, valve assembly and method for forming reactant pulse by operating valve assembly

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