JPS6233763A - Composite target for sputtering - Google Patents

Composite target for sputtering

Info

Publication number
JPS6233763A
JPS6233763A JP17203785A JP17203785A JPS6233763A JP S6233763 A JPS6233763 A JP S6233763A JP 17203785 A JP17203785 A JP 17203785A JP 17203785 A JP17203785 A JP 17203785A JP S6233763 A JPS6233763 A JP S6233763A
Authority
JP
Japan
Prior art keywords
sputtering
target
composite target
alloy
substrate
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
JP17203785A
Other languages
Japanese (ja)
Inventor
Toshiro Abe
安部 俊郎
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP17203785A priority Critical patent/JPS6233763A/en
Publication of JPS6233763A publication Critical patent/JPS6233763A/en
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34Sputtering
    • C23C14/3407Cathode assembly for sputtering apparatus, e.g. Target

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)
  • Electrodes Of Semiconductors (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)

Abstract

PURPOSE:To form a thin alloy film on a substrate at a low cost easily and stably by using a composite target for sputtering obtd. by combining partial targets made of different film forming substances. CONSTITUTION:Partial targets 1, 2, 3 made of the constituents of a thin alloy film to be formed on a substrate are made circular and discoid and combined to obtain a discoid composite target for sputtering. When this target is used, an expensive alloy target is made unnecessary and even a thin film of an alloy of substances which are not metallurgically alloyed can easily be formed on a substrate by sputtering.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明はスパッタリング用複合ターゲット、特に、基板
上に複数の成膜物質による合金薄膜を付着形成させる際
に使用されるのに適するスパッタリング用複合ターゲッ
トに関する。
Detailed Description of the Invention (Industrial Application Field) The present invention relates to a sputtering composite target, particularly a sputtering composite target suitable for use in depositing an alloy thin film made of a plurality of film-forming substances on a substrate. Regarding the target.

(従来の技術) 従来、スパッタリングによって合金薄膜を基板上に付着
形成させるのには、基板上に成膜させるべき合金のター
ゲットが用いられており、また、冶金学的に合金を形成
しない物質による合金をスパッタリングによって基板上
に付着形成させようとする場合には、ターゲット上に他
の物質のチップを載置した状態でスパッタリングを行な
うようにしていた。
(Prior art) Conventionally, in order to deposit and form an alloy thin film on a substrate by sputtering, a target of the alloy to be deposited on the substrate has been used. When an alloy is to be deposited on a substrate by sputtering, sputtering is performed with a chip of another material placed on the target.

(発明が解決しようとする問題点) ところが、前記した従来技術における前者の場合には、
ターゲットとして高価な合金ターゲットが必要とされる
という欠点があり、また、前記した従来技術における後
者の場合には、安定性のよい成膜を行なうことができな
いという欠点があった。
(Problem to be solved by the invention) However, in the former case of the prior art described above,
There is a drawback that an expensive alloy target is required as a target, and in the latter case in the prior art described above, there is a drawback that stable film formation cannot be performed.

(問題点を解決するための手段) 本発明は、それぞれ異なる成膜物質による部分ターゲッ
トで構成されてなるスパッタリング用複合ターゲットを
提供するものである。
(Means for Solving the Problems) The present invention provides a composite target for sputtering that is composed of partial targets made of different film-forming substances.

(実施例) 以下、添付図面を参照しながら本発明のスパッタリング
用複合ターゲットの具体的な内容について詳細に説明す
る。
(Example) Hereinafter, specific contents of the composite target for sputtering of the present invention will be described in detail with reference to the accompanying drawings.

第1図は本発明のスパッタリング用複合ターゲットの一
実施例の平面図、第2図は第1図中のA−A線位置にお
けるスパッタリング用複合ターゲットの縦断側面図であ
る。
FIG. 1 is a plan view of an embodiment of the composite target for sputtering of the present invention, and FIG. 2 is a longitudinal sectional side view of the composite target for sputtering taken along the line A-A in FIG.

この第1図及び第2図に示されている実施例のスパッタ
リング用複合ターゲットにおいて、1゜2.3はそれぞ
れ基板上に付着形成させるべき合金薄膜の構成4分物質
で作られている部分ターゲットである0図示の実施例に
おいてスパッタリング用複合ターゲットは、それの全体
形状が円形であり、また、部分ターゲット1,2はそれ
ぞれ円環状となされており、さらに1部分ターゲット3
が円板状のものとして実施されているが1本発明・の実
施に当っては全体の形状が任意であってもよく、また、
分割される個々の部分も任意であってもよいのである。
In the composite target for sputtering of the embodiment shown in FIGS. 1 and 2, 1°2.3 is a partial target made of the constituent materials of the alloy thin film to be deposited on the substrate, respectively. 0 In the illustrated embodiment, the composite target for sputtering has a circular overall shape, and partial targets 1 and 2 each have an annular shape, and one partial target 3.
Although it is implemented as a disk-shaped object, the overall shape may be arbitrary when implementing the present invention, and
The individual parts to be divided may also be arbitrary.

そして、前記の部分ターゲットは、それぞれの構成物質
のスパッタリングレートを考慮して、それぞれの大きさ
が決定されることが望ましいことはいうまでもない。
It goes without saying that the size of each of the partial targets is desirably determined in consideration of the sputtering rate of each constituent material.

また1本発明のスパッタリング用複合ターゲットが、マ
グネトロンスパッタリング用のターゲラ 、トとして用
いられる場合には、二ロージ履ンエリアに含まれる部分
ターゲットの構成物質としてはスパッタリングレートの
低いもの、あるいは、基板上に付着形成させるべき合金
の組成比の大きなものなどが選定される。
In addition, when the composite target for sputtering of the present invention is used as a target for magnetron sputtering, the constituent material of the partial target contained in the two-layer wear area should be a material with a low sputtering rate or a material on the substrate. An alloy having a large composition ratio to be deposited is selected.

すなわち、ターゲットの近傍しこ形成させた磁界中にプ
ラズマを封じ込め、アルゴンガスのイオン化が良好に行
なわれるようにして、高いスパッタリングレートが得ら
れるようにしたマグネトロンスパッタリングにおいては
、前記のようにプラズマが封じ込められる領域中に、タ
ーゲットが激しく侵蝕される部分、すなわち、二ローシ
ョンエリアが生じるからである。
In other words, in magnetron sputtering, in which a high sputtering rate is obtained by confining the plasma in a magnetic field formed near the target and ionizing the argon gas well, the plasma is This is because in the area to be contained, there will be a portion where the target is severely eroded, ie, a two-lotion area.

本発明のスパッタリング用複合ターゲットは。The composite target for sputtering of the present invention is:

それぞれの部分ターゲット1〜3の間が、密着状態にな
されても、あるいは、各部分ターゲット1゜2.3間に
間隙が設けられていてもよい。
The partial targets 1 to 3 may be in close contact with each other, or a gap may be provided between the partial targets 1.degree.2.3.

(効果 ) 以上の説明から明らかなように、本発明のスパッタリン
グ用複合ターゲットは、それぞれ異なる成膜物質による
部分ターゲットで構成されてなるものであるから、本発
明のスパッタリング用複合ターゲットによれば、高価な
合金ターゲットを用いる必要がなく、また、冶金学的に
合金を形成しない物質による合金の薄膜も、スパッタリ
ングによって容易に、かつ、安定に基板上に付着形成さ
せることができるのであり1本発明によれば既述した従
来の問題点は良好に解決されるのである。
(Effects) As is clear from the above description, the composite target for sputtering of the present invention is composed of partial targets made of different film-forming substances, so the composite target for sputtering of the present invention has the following effects: There is no need to use an expensive alloy target, and a thin film of an alloy made of a substance that does not form an alloy metallurgically can be easily and stably deposited on a substrate by sputtering. According to the above-mentioned conventional problems, they can be satisfactorily solved.

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

第1図は本発明のスパッタリング用複合ターゲットの一
実施例の平面図、第2図は第1図中のA−A線位置の縦
断面図である。
FIG. 1 is a plan view of an embodiment of a composite target for sputtering of the present invention, and FIG. 2 is a longitudinal sectional view taken along line A--A in FIG. 1.

Claims (1)

【特許請求の範囲】[Claims] それぞれ異なる成膜物質による部分ターゲットで構成さ
れてなるスパッタリング用複合ターゲット
A composite target for sputtering consisting of partial targets each made of a different film-forming material.
JP17203785A 1985-08-05 1985-08-05 Composite target for sputtering Pending JPS6233763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17203785A JPS6233763A (en) 1985-08-05 1985-08-05 Composite target for sputtering

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17203785A JPS6233763A (en) 1985-08-05 1985-08-05 Composite target for sputtering

Publications (1)

Publication Number Publication Date
JPS6233763A true JPS6233763A (en) 1987-02-13

Family

ID=15934356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17203785A Pending JPS6233763A (en) 1985-08-05 1985-08-05 Composite target for sputtering

Country Status (1)

Country Link
JP (1) JPS6233763A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512245B2 (en) 1993-01-14 2003-01-28 Hitachi, Ltd. Semiconductor integrated circuit device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512245B2 (en) 1993-01-14 2003-01-28 Hitachi, Ltd. Semiconductor integrated circuit device

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