JPH07326590A - Vertical cvd device and its boat - Google Patents

Vertical cvd device and its boat

Info

Publication number
JPH07326590A
JPH07326590A JP15033595A JP15033595A JPH07326590A JP H07326590 A JPH07326590 A JP H07326590A JP 15033595 A JP15033595 A JP 15033595A JP 15033595 A JP15033595 A JP 15033595A JP H07326590 A JPH07326590 A JP H07326590A
Authority
JP
Japan
Prior art keywords
boat
reaction tube
wafers
main body
boat body
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.)
Granted
Application number
JP15033595A
Other languages
Japanese (ja)
Other versions
JP3060401B2 (en
Inventor
Mikio Koizumi
幹夫 小泉
Hironobu Miya
博信 宮
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.)
Kokusai Electric Corp
Original Assignee
Kokusai Electric 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 Kokusai Electric Corp filed Critical Kokusai Electric Corp
Priority to JP15033595A priority Critical patent/JP3060401B2/en
Publication of JPH07326590A publication Critical patent/JPH07326590A/en
Application granted granted Critical
Publication of JP3060401B2 publication Critical patent/JP3060401B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Formation Of Insulating Films (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

PURPOSE:To insert and unload a boat body without bringing it into contact with a boat cover part supported by a reaction tube and to prevent generation of particle by supporting a boat cover part by a reaction tube upper part in a position inside a reaction tube which is not in contact with a boat body to be carried in and out. CONSTITUTION:When a CVD film is produced in a number of wafers 8 by holding a number of wafers 8 by a number of wafer holding grooves 9 of a boat body 3, the boat body 3 is raised and inserted into an inner tube 5 and a CVD film is produced in a number of wafers 8. After production, the boat body 3 is lowered and unloaded from an inside of the inner tube 5 and a number of wafers 8 wherein a CVD film is produced are taken out. When the boat body 3 is inserted and unloaded, the boat body 3 is inserted and unloaded without coming into contact with the boat cover part 4 supported by the inner tube 5 and the wafer 8 can be removed from the boat body 3 as it is.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はLTO(低温酸化膜),
HTO(高温酸化膜),P−Doped Poly Si膜 (リン・
ドープトポリシリコン膜) 等のCVD膜を生成する縦形
CVD装置及びそのボートに関する。
The present invention relates to an LTO (low temperature oxide film),
HTO (high temperature oxide film), P-Doped Poly Si film (phosphorus
The present invention relates to a vertical CVD apparatus for producing a CVD film such as a doped polysilicon film) and its boat.

【0002】[0002]

【従来技術とその課題】図2は横型CVD装置において
用いられる従来の2分割型の石英製ボートの一例を示し
たものである。この従来ボートはボート本体部1とボー
トカバー部2に分かれているが、多数枚のウェーハ8を
ボート本体部1のウェーハ保持溝9に脱着する度毎にカ
バー部2を取付け,取外すことが必要である。このため
本体部1とカバー部2の接触によるパーティクルの発生
を抑えることができず、更に、カバー部2の取付け,取
外しの自動化が困難である等の課題があった。なお、こ
のようなカバー付きボートを用いる時は、カバーなしボ
ートを用いる場合に生じる生成膜の不均一を改善できる
ものである。
2. Description of the Related Art FIG. 2 shows an example of a conventional two-piece quartz boat used in a horizontal CVD apparatus. Although this conventional boat is divided into a boat body 1 and a boat cover 2, it is necessary to attach and detach the cover 2 every time a large number of wafers 8 are attached to and detached from the wafer holding groove 9 of the boat body 1. Is. For this reason, the generation of particles due to the contact between the main body 1 and the cover 2 cannot be suppressed, and further there is a problem that it is difficult to automate the mounting and removal of the cover 2. In addition, when such a boat with a cover is used, it is possible to improve the nonuniformity of the formed film that occurs when using the boat without a cover.

【0003】[0003]

【課題を解決するための手段】本発明は上記の課題を解
決するためになされたもので、ウェーハ8を載置するボ
ート本体3を反応管5内に搬入してウェーハ8にCVD
膜を生成し、CVD膜生成後、前記ボート本体3を搬出
する構造の縦形CVD装置において、前記搬入,出され
るボート本体3と接触しない反応管5内の位置で、かつ
反応管5上部にボートカバー部4を支持せしめてなるこ
とを特徴とする縦形CVD装置である。また、ウェーハ
8にCVD膜を生成する縦形CVD装置において、反応
室内の反応管5のボート本体3と接触しない位置で、か
つ反応管5上部に支持されるボートカバー部4と、前記
反応管5内に挿入,取出されるボート本体3とを有し、
ボート本体3がボートカバー部4と接触しないことを特
徴とする縦形CVDボートである。
The present invention has been made in order to solve the above-mentioned problems, and the boat body 3 on which the wafer 8 is placed is carried into the reaction tube 5 and the wafer 8 is subjected to CVD.
In a vertical CVD apparatus having a structure in which a film is formed and the boat main body 3 is carried out after the CVD film is formed, the boat is located above the reaction tube 5 at a position where the boat main body 3 is not brought into contact with the boat main body 3. The vertical CVD apparatus is characterized in that the cover portion 4 is supported. Further, in a vertical CVD apparatus for producing a CVD film on a wafer 8, a boat cover portion 4 supported on the reaction tube 5 at a position not contacting the boat body 3 of the reaction tube 5 in the reaction chamber, and the reaction tube 5 It has a boat main body 3 that is inserted into and taken out of,
The vertical CVD boat is characterized in that the boat body 3 does not come into contact with the boat cover portion 4.

【0004】[0004]

【作用】このような構成とすることによりボート本体3
の多数のウェーハ保持溝9に多数枚のウェーハ8を保持
し(図1参照)、多数枚のウェーハ8にCVD膜を生成
する際にこのボート本体3を上昇させて反応管5内に挿
入し、従来と同様に多数枚のウェーハ8にCVD膜を生
成する。生成終了後、反応管5内よりボート本体3を下
降させて取り出し、CVD膜の生成された多数枚のウェ
ーハ8が取り出されることになる。ボート本体3の挿
入,取出しに際して、ボート本体3は反応管5に支持さ
れているボートカバー部4と別に接触することなく挿
入,取出されると共にボート本体3からウェーハ8を脱
着する際、ボートカバー部4の取付け,取外しを行うも
のと異なり、そのままウェーハを脱着できるので、パー
ティクルの発生が抑制される。又、ボートカバー部4
は、反応管5に支持されているので、その取付け,取外
しを自動化することができ、また、ボートカバー部4と
ボート本体3の分離や結合作業も必要としない。
[Operation] With such a configuration, the boat body 3
Holding a large number of wafers 8 in a large number of wafer holding grooves 9 (see FIG. 1), and when producing a CVD film on the large number of wafers 8, the boat body 3 is raised and inserted into the reaction tube 5. A CVD film is formed on a large number of wafers 8 as in the conventional case. After the production is completed, the boat body 3 is lowered from the reaction tube 5 and taken out, and a large number of wafers 8 on which the CVD film is produced are taken out. When the boat main body 3 is inserted and removed, the boat main body 3 is inserted and taken out without coming into contact with the boat cover part 4 supported by the reaction tube 5, and when the wafer 8 is detached from the boat main body 3, the boat cover 3 is inserted. Unlike the case where the part 4 is attached and detached, the wafer can be attached and detached as it is, so that the generation of particles is suppressed. Also, the boat cover part 4
Since it is supported by the reaction tube 5, its attachment and detachment can be automated, and there is no need to separate or join the boat cover part 4 and the boat body 3.

【0005】[0005]

【実施例】以下図面によって本発明の実施例を説明す
る。図1は本発明縦形CVD装置の一実施例の構成を示
す説明用斜視図で、5は反応室内に下方より挿入されて
固定されるインナーチューブである。このインナーチュ
ーブ5の上端には複数個、例えば2個の位置決めピン6
がこの場合、対向する位置に受けられている。4はボー
トカバー部で、その上端には環状の上方フランジ部4a
が設けられ、その下端には弧状の下方フランジ部4bが
設けられている。ボートカバー部4の上方フランジ部4
aにはインナーチューブ5の上端に設けられた2個の位
置決めピン6に対向して位置決めスリット7が設けられ
ている。このボートカバー部4はその位置決めスリット
7をインナーチューブ5の位置決めピン6に嵌装するよ
うにインナーチューブ5の上方より挿入され、位置決め
されて支持される。このボートカバー部4を支持したイ
ンナーチューブ5は反応室内に下方より挿入されて固定
される。3はボートカバー部4とで本発明縦形CVDボ
ートを構成するボート本体で、その内側には多数枚のウ
ェーハ8を保持するウェーハ保持溝9が設けられ、また
その下端には下板3bが設けられている。このボート本
体3はインナーチューブ5内に下方より挿入され、また
これより下方から取り出されるが、挿入時にボート本体
3の上端3a,下板3b及び側方端3cがそれぞれボー
トカバー部4の上方フランジ4a,下方フランジ部4b
及び側方端4cに接触しないような構成となっている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory perspective view showing the configuration of an embodiment of the vertical CVD apparatus of the present invention, and 5 is an inner tube which is inserted into the reaction chamber from below and fixed. A plurality of, for example, two positioning pins 6 are provided on the upper end of the inner tube 5.
In this case, they are received at opposite positions. Reference numeral 4 is a boat cover portion, and an annular upper flange portion 4a is provided at the upper end
Is provided, and an arc-shaped lower flange portion 4b is provided at the lower end thereof. Upper flange portion 4 of the boat cover portion 4
Positioning slits 7 are provided at a so as to face the two positioning pins 6 provided at the upper end of the inner tube 5. The boat cover 4 is inserted from above the inner tube 5 so that the positioning slit 7 is fitted to the positioning pin 6 of the inner tube 5, and is positioned and supported. The inner tube 5 supporting the boat cover 4 is inserted into the reaction chamber from below and fixed. Reference numeral 3 denotes a boat main body which constitutes the vertical CVD boat of the present invention together with the boat cover portion 4, inside which a wafer holding groove 9 for holding a large number of wafers 8 is provided, and at the lower end thereof a lower plate 3b is provided. Has been. The boat main body 3 is inserted into the inner tube 5 from below and taken out from below, but the upper end 3a, the lower plate 3b and the side ends 3c of the boat main body 3 are respectively inserted into the upper flange of the boat cover portion 4 at the time of insertion. 4a, lower flange portion 4b
And the side end 4c is not contacted.

【0006】本実施例はこのように構成されているの
で、ボート本体3の多数のウェーハ保持溝9に多数枚の
ウェーハ8を保持し(図1参照)、多数枚のウェーハ8
にCVD膜を生成する際にこのボート本体3を上昇させ
てインナーチューブ5内に挿入し、従来と同様に多数枚
のウェーハ8にCVD膜を生成する。生成終了後、イン
ナーチューブ5内よりボート本体3を下降させて取出
し、CVD膜の生成された多数枚のウェーハ8が取り出
されることになる。ボート本体3の挿入,取出しに際し
ては、ボート本体3はインナーチューブ5に支持されて
いるボートカバー部4と別に接触することなく挿入,取
出されると共に、ボート本体3からウェーハ8を脱着す
る際、ボートカバー部4の取付け,取外しを行うものと
異なり、そのまま、ウェーハを脱着できるので、パーテ
ィクルの発生が抑制されることになる。ボートカバー部
4はインナーチューブ5に位置決めスリット7と位置決
めピン6の嵌装により支持されているので、ボートカバ
ー部4を昇降させるだけでインナーチューブ5から取外
し,取付けができ、ボートカバー部4の取付け,取外し
の自動化が容易に実現でき、また、ボートカバー部4と
ボート本体3の分離や結合作業も必要としないことにな
る。
Since this embodiment is constructed in this way, a large number of wafers 8 are held in the large number of wafer holding grooves 9 of the boat body 3 (see FIG. 1), and a large number of wafers 8 are held.
When the CVD film is to be formed, the boat body 3 is raised and inserted into the inner tube 5, and the CVD film is formed on a large number of wafers 8 as in the conventional case. After the production is completed, the boat body 3 is lowered from the inner tube 5 and taken out, and a large number of wafers 8 on which the CVD film has been produced are taken out. When the boat main body 3 is inserted and removed, the boat main body 3 is inserted and taken out without coming into contact with the boat cover portion 4 supported by the inner tube 5, and when the wafer 8 is detached from the boat main body 3. Unlike the case where the boat cover 4 is attached and detached, the wafer can be attached and detached as it is, so that the generation of particles is suppressed. Since the boat cover portion 4 is supported by the inner tube 5 by fitting the positioning slits 7 and the positioning pins 6, the boat cover portion 4 can be detached from the inner tube 5 and attached only by moving the boat cover portion 4 up and down. The mounting and removal can be easily automated, and the boat cover part 4 and the boat body 3 need not be separated or joined.

【0007】[0007]

【発明の効果】上述のように本発明によれば、搬入,出
(挿入,取出)されるボート本体3と接触しない反応管
5内の位置で、かつ反応管5上部にボートカバー部4を
支持する構成としたので、ボート本体3を、反応管5に
支持されているボートカバー部4と別に接触することな
く挿入,取出すことができると共に、ボート本体3にボ
ートカバー部4の取付け,取外しを行うものと異なり、
そのままウェーハを脱着できるので、パーティクルの発
生を抑制することができる。又、反応管5にボートカバ
ー部4を支持しているので、ボートカバー部4の取付
け,取外し作業の自動化も可能となり、また、ボートカ
バー部4とボート本体3の分離や結合作業も必要としな
い。
As described above, according to the present invention, the boat cover part 4 is provided at a position in the reaction tube 5 where it does not come into contact with the boat body 3 that is carried in and out (inserted, taken out) and above the reaction tube 5. Since it is configured to be supported, the boat body 3 can be inserted and removed without contacting the boat cover portion 4 supported by the reaction tube 5 separately, and the boat cover portion 4 can be attached to and removed from the boat body 3. Unlike what you do
Since the wafer can be attached and detached as it is, the generation of particles can be suppressed. Further, since the boat cover portion 4 is supported by the reaction tube 5, it is possible to automate the work of attaching and detaching the boat cover portion 4, and the work of separating and joining the boat cover portion 4 and the boat body 3 is required. do not do.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明縦形CVD装置の1実施例の構成を示す
説明用斜視図である。
FIG. 1 is an explanatory perspective view showing the configuration of an embodiment of a vertical CVD apparatus of the present invention.

【図2】従来ボートの一例の構成を示す説明用斜視図で
ある。
FIG. 2 is an explanatory perspective view showing the configuration of an example of a conventional boat.

【符号の説明】[Explanation of symbols]

3 ボート本体 3a 上端 3b 下板 3c 側方端 4 ボートカバー部 4a 上方フランジ部 4b 下方フランジ部 4c 側方端 5 インナーチューブ 6 位置決めピン 7 位置決めスリット 8 ウェーハ 9 ウェーハ保持溝 3 Boat body 3a Upper end 3b Lower plate 3c Side end 4 Boat cover part 4a Upper flange part 4b Lower flange part 4c Side end 5 Inner tube 6 Positioning pin 7 Positioning slit 8 Wafer 9 Wafer holding groove

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 ウェーハを載置するボート本体を反応管
内に搬入してウェーハにCVD膜を生成し、CVD膜生
成後、前記ボート本体を搬出する構造の縦形CVD装置
において、前記搬入,出されるボート本体と接触しない
反応管内の位置で、かつ反応管上部にボートカバー部を
支持せしめてなることを特徴とする縦形CVD装置。
1. A vertical CVD apparatus having a structure in which a boat main body on which a wafer is placed is carried into a reaction tube to form a CVD film on the wafer, and after the CVD film is formed, the boat main body is unloaded. A vertical CVD apparatus, characterized in that a boat cover is supported at a position in the reaction tube that does not come into contact with the boat body and above the reaction tube.
【請求項2】 ウェーハにCVD膜を生成する縦形CV
D装置において、反応室内の反応管のボート本体と接触
しない位置で、かつ反応管上部に支持されるボートカバ
ー部と、前記反応管内に挿入,取出されるボート本体と
を有し、ボート本体がボートカバー部と接触しないこと
を特徴とする縦形CVDボート。
2. A vertical CV for producing a CVD film on a wafer.
In the apparatus D, the boat main body has a boat cover part supported in the reaction tube upper part and a position not contacting the boat main body of the reaction tube in the reaction chamber, and a boat main body inserted into and taken out from the reaction tube. A vertical CVD boat that does not come into contact with the boat cover.
JP15033595A 1995-06-16 1995-06-16 Vertical CVD apparatus, boat therefor, and wafer processing method for vertical CVD apparatus Expired - Lifetime JP3060401B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15033595A JP3060401B2 (en) 1995-06-16 1995-06-16 Vertical CVD apparatus, boat therefor, and wafer processing method for vertical CVD apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15033595A JP3060401B2 (en) 1995-06-16 1995-06-16 Vertical CVD apparatus, boat therefor, and wafer processing method for vertical CVD apparatus

Publications (2)

Publication Number Publication Date
JPH07326590A true JPH07326590A (en) 1995-12-12
JP3060401B2 JP3060401B2 (en) 2000-07-10

Family

ID=15494762

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15033595A Expired - Lifetime JP3060401B2 (en) 1995-06-16 1995-06-16 Vertical CVD apparatus, boat therefor, and wafer processing method for vertical CVD apparatus

Country Status (1)

Country Link
JP (1) JP3060401B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423525A (en) * 1987-07-20 1989-01-26 Toyoko Kagaku Kk Vertical-type low-pressure vapor growth equipment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423525A (en) * 1987-07-20 1989-01-26 Toyoko Kagaku Kk Vertical-type low-pressure vapor growth equipment

Also Published As

Publication number Publication date
JP3060401B2 (en) 2000-07-10

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