JPH01244613A - Boat used for manufacture of semiconductor device - Google Patents

Boat used for manufacture of semiconductor device

Info

Publication number
JPH01244613A
JPH01244613A JP7260988A JP7260988A JPH01244613A JP H01244613 A JPH01244613 A JP H01244613A JP 7260988 A JP7260988 A JP 7260988A JP 7260988 A JP7260988 A JP 7260988A JP H01244613 A JPH01244613 A JP H01244613A
Authority
JP
Japan
Prior art keywords
boat
gas
conical cover
supplied
processing
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
JP7260988A
Other languages
Japanese (ja)
Inventor
Tatsunori Kaneoka
竜範 金岡
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7260988A priority Critical patent/JPH01244613A/en
Publication of JPH01244613A publication Critical patent/JPH01244613A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enable all the wafers being treated to be supplied with a uniform quantity of treating gas, by providing a conical cover whose apex is directed to the side from which the treating gas is supplied. CONSTITUTION:A boat 3 has a conical cover 4 whose axis is coincident with that of a tube 1. The boat 3 is inserted into the tube 1 such that the apex of the conical cover 4 is directed to the side from which treating gas is supplied. While required treatments such as diffusion, CVD or the like are performed, the treating gas is allowed to flow at a fixed flow rate around wafers to be treated 2 without any turbulence in flow. Accordingly, all the wafers can be supplied with a uniform quantity of gas.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は半導体装置製造に用いるボートに関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a boat used for manufacturing semiconductor devices.

〔従来のff術〕[Conventional ff technique]

第2図Ii、従来の半導体処理用のボートを示しており
、(11は拡散炉、CVD炉等のチューブ、(21は処
理ウェハ、(41はボートである。
FIG. 2Ii shows a conventional boat for semiconductor processing, (11 is a tube of a diffusion furnace, CVD furnace, etc., (21 is a processing wafer, and (41 is a boat).

次に、従来技術について説明する。チューブ山内に処理
ウェハを入れて、チューブIII内に処理用ガスを流す
と、ガスの供給口に最も近いあ理ウェハにガスの流れが
衝突し、それ以外のウェハに供給される処理用ガスの酸
と大きな差があった。そこで、従来のボート+61でに
処理用ガスの供給側に例えば、石英の板(61などを取
υ付け、供給側の処理ウェハにガスの流れが直接衝突し
ないようにして、ウェハごとに供給されるガスの歌が不
均一になることを防いでいる。
Next, conventional technology will be explained. When a processing wafer is placed in the tube stack and processing gas is flowed into tube III, the gas flow collides with the gap wafer closest to the gas supply port, causing the processing gas supplied to other wafers to There was a big difference with acid. Therefore, for example, a quartz plate (61, etc.) is attached to the processing gas supply side of the conventional boat +61 to prevent the gas flow from directly colliding with the processing wafers on the supply side. This prevents the gas song from becoming uneven.

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

従来のボートに以上のように構成されているので、第8
図のように、石英板により、チューブIll内の処理用
ガスの流れが石英板のすぐ後のウェハに流れ、ウェハご
とのガスの供給竜が異なり1例えば、CVD処理を行っ
た場合、ウェハ上に形成された膜の厚さが、供給側から
岨れるに従い、薄くなるという問題があった。
Since the conventional boat is configured as described above, the 8th
As shown in the figure, due to the quartz plate, the flow of processing gas in the tube Ill flows to the wafer immediately after the quartz plate, and the gas supply mechanism for each wafer is different1.For example, when performing CVD processing, There has been a problem in that the thickness of the film formed on the film becomes thinner from the supply side.

この発明は上記のような問題点を解消するためになされ
たもので、処理ウェハごとの処理用ガス供給耽の不−均
化を防止できるボートを得ることを目的としている。
The present invention has been made to solve the above-mentioned problems, and aims to provide a boat that can prevent uneven supply of processing gas for each processing wafer.

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

この発明に係るボートは、円錐形のカバーを備えること
により、カバーを通過した処理用ガスの流れを一定にす
ることにより、ウェハごとに供給される処理用ガスの亀
の不均一化を防ぐものである。
The boat according to the present invention is equipped with a conical cover to ensure a constant flow of processing gas passing through the cover, thereby preventing unevenness in the processing gas supplied to each wafer. It is.

〔作用〕[Effect]

この発明におけるボートは1円錐形のカバーを用いるこ
とにより、ボート上のすべての処理ウェハに均等にガス
を供給できる。
By using a single conical cover, the boat according to the present invention can supply gas evenly to all processing wafers on the boat.

〔実施例〕〔Example〕

以下、この発明の一実施例を図について説明する。第1
図において、…は拡散炉、CVD炉等のチューブ、12
;は処理ウェハ、131本発明の円繊形のカバー141
を備えたボートである。
An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, ... is a tube of a diffusion furnace, CVD furnace, etc., 12
; is a processed wafer, 131 a circular-shaped cover 141 of the present invention;
It is a boat equipped with

この発明では、ボート(31はチューブ…の中心軸と一
致する中心軸の円錐形のカバーを有している。このボー
) 1ull i処理用ガスの供給される側に円錐形の
カバー(41の頂点が向かうようにチューブ+II内に
挿入する。拡散、CVD処理等倉行っている間、処理用
のガスは第1図のように円錐形のカバーにより、処理ウ
ェハ(2)のまわりを、流れを乱すことなく、一定の流
酸で流れる。
In this invention, the boat (31 has a conical cover whose central axis coincides with the central axis of the tube). Insert the wafer into Tube + II with the apex facing upward.During diffusion, CVD processing, etc., the processing gas flows around the processing wafer (2) through a conical cover as shown in Figure 1. Flows with constant flowing acid without disturbing the flow.

従って、ウェハごとのガス供給量の不均一化を防ぐ仁と
ができる。
Therefore, it is possible to prevent non-uniformity in the amount of gas supplied to each wafer.

なお、上記実施例では、円錐形カバーとボートが一体化
したものを示したが、これらrO離可能にしてもよい。
In the above embodiment, the conical cover and the boat are integrated, but they may be separated.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明によれば、半導体処理用ボート
に円錐形カバー倉有したので、処理用ガスのウェハごと
の供給量の不均一化を防止できる効果がある。
As described above, according to the present invention, since the semiconductor processing boat is provided with a conical cover, it is possible to prevent uneven supply of processing gas from one wafer to another.

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

第1図はこの発明の一実施例による半導体処理用ボート
の概略図、第2図は従来のボートの概略図である。■は
拡散炉、CVD炉等のチューブ、+211d処理ウエハ
、131本発明によるボート、141は円錐形カバー1
,61従米のボート、 +61石英板である。 なお1図中、同一符号は同一、又は相当部分を示す。
FIG. 1 is a schematic diagram of a semiconductor processing boat according to an embodiment of the present invention, and FIG. 2 is a schematic diagram of a conventional boat. ■ is a tube of a diffusion furnace, CVD furnace, etc., +211d processed wafer, 131 is a boat according to the present invention, 141 is a conical cover 1
, 61 yen boat, +61 quartz plate. In addition, in FIG. 1, the same reference numerals indicate the same or equivalent parts.

Claims (1)

【特許請求の範囲】[Claims]  半導体装置製造に使用する拡散炉、CVD炉等のチュ
ーブの中心軸が一致し、頂点が処理用ガスの供給側に向
いた円錐形のカバーを備えた半導体装置製造に用いるポ
ート。
A port used in the manufacture of semiconductor devices, such as a diffusion furnace or CVD furnace, which is equipped with a conical cover whose central axes coincide with each other and whose apex faces the processing gas supply side.
JP7260988A 1988-03-25 1988-03-25 Boat used for manufacture of semiconductor device Pending JPH01244613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7260988A JPH01244613A (en) 1988-03-25 1988-03-25 Boat used for manufacture of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7260988A JPH01244613A (en) 1988-03-25 1988-03-25 Boat used for manufacture of semiconductor device

Publications (1)

Publication Number Publication Date
JPH01244613A true JPH01244613A (en) 1989-09-29

Family

ID=13494305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7260988A Pending JPH01244613A (en) 1988-03-25 1988-03-25 Boat used for manufacture of semiconductor device

Country Status (1)

Country Link
JP (1) JPH01244613A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07130670A (en) * 1993-11-05 1995-05-19 Nec Corp Heat treatment boat for semiconductor wafer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07130670A (en) * 1993-11-05 1995-05-19 Nec Corp Heat treatment boat for semiconductor wafer

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