EP1438443A1 - Procede et appareil de pulverisation cathodique de couches epitaxiales a grande vitesse de depot - Google Patents

Procede et appareil de pulverisation cathodique de couches epitaxiales a grande vitesse de depot

Info

Publication number
EP1438443A1
EP1438443A1 EP02799663A EP02799663A EP1438443A1 EP 1438443 A1 EP1438443 A1 EP 1438443A1 EP 02799663 A EP02799663 A EP 02799663A EP 02799663 A EP02799663 A EP 02799663A EP 1438443 A1 EP1438443 A1 EP 1438443A1
Authority
EP
European Patent Office
Prior art keywords
target
magnetron
sputtering
film
shaped
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.)
Withdrawn
Application number
EP02799663A
Other languages
German (de)
English (en)
Inventor
Roman Chistyakov
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of EP1438443A1 publication Critical patent/EP1438443A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • H01J37/34—Gas-filled discharge tubes operating with cathodic sputtering
    • H01J37/3402—Gas-filled discharge tubes operating with cathodic sputtering using supplementary magnetic fields
    • H01J37/3405—Magnetron sputtering
    • H01J37/3408—Planar magnetron sputtering
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23C—COATING 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
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering
    • C23C14/352—Sputtering by application of a magnetic field, e.g. magnetron sputtering using more than one target
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00—Single-crystal growth by condensing evaporated or sublimed materials
    • C30B23/02—Epitaxial-layer growth

Definitions

  • This invention relates to the sputter deposition of epilayers using a plurality of magnetrons having different shapes.
  • Radio frequency ( "RF” ) magnetron sputtering techniques are widely used for the sputtering of thin films.
  • RF radio frequency
  • AC alternating current
  • One embodiment of this invention is an apparatus for film deposition having first and second magnetron targets within a sputtering chamber, wherein the second target is shaped as a ring, or a method for film deposition employing such apparatus.
  • a further embodiment of this invention is an apparatus for film deposition having first and second magnetron targets within a sputtering chamber, wherein the second target has an aperture that provides exterior and interior surfaces from which target material may be sputtered, or a method for film deposition employing such apparatus.
  • Another embodiment of this invention is, in a method of depositing a film by sputtering from a plurality of magnetron targets in a sputtering chamber, the step of periodically shifting the negative potential to a magnetron target that is shaped as a ring.
  • Yet another embodiment of this invention is, in a method of depositing a film by sputtering from a plurality of magnetron targets in a sputtering chamber, the step of periodically shifting the negative potential to a magnetron target that has an aperture that provides exterior and interior surfaces from which target material may be sputtered.
  • a method and apparatus for the epitaxial sputter deposition of a film on a substrate, particularly thick epilayers, at a high deposition rate. It is preferred to deposit the epitaxial films by using an AC magnetron sputtering technique .
  • a sputter epitaxy chamber for sputtering target materials contains a plurality of magnetron sputtering targets as sources of sputter material .
  • the targets may have different shapes, such as a planar shape and a ring shape.
  • the preferred nature of ring-shaped magnetron is such that it possesses an aperture that provides exterior and interior surfaces from which target material may be sputtered.
  • the ring-shaped magnetron need not be a perfect circle. It may formed in any shape that is suitable for the sputtering chamber, such as an essentially perfect circle, imperfectly circular, eliptical or polygonal, so long as the aperture is present. There is no limitation on the variety of dimensional sizes the ring-shaped magnetron may take along all three axes provided that it functions as intended for use as a magnetron.
  • An AC power supply is connected to first and second magnetron targets in a sputtering chamber, one of the magnetron targets being the ring-shaped magnetron.
  • the ring-shaped magnetron may be disposed between another magnetron target, such as a planar, rectangular magnetron possessing no aperture, and the substrate.
  • the ring-shaped magnetron may be constructed from the same material as another target or from just one or only some of the materials from which another target may be prepared.
  • first and second targets one of which is the ring-shaped magnetron, act periodically as the cathode and the anode . Sputtering from the magnetron target and ring-target together forms a film on the substrate.
  • a sputter epitaxy chamber for sputtering nonconductive materials includes two magnetron sputtering sources, at least one shaped as a ring and a substrate.
  • two magnetron sputtering sources instead of having two planar, rectangular magnetron sputtering sources and connecting an AC power supply between them, we propose in this invention to have a plurality of magnetron sputtering sources, one of which is shaped as a ring.
  • This magnetron is constructed from the same material as the other, or from one of the elements that make up the other target if it is a compound of multiple elements.
  • both targets act periodically as a cathode and an anode .
  • the use of AC power causes the negative potential to periodically shift from one magnetron to another.
  • a sputter epitaxy chamber including a first magnetron sputtering source 2, a ring-shaped magnetron sputtering source 4, and a substrate 6.
  • An AC power supply 8 is connected to the two magnetrons.
  • the ring-shaped magnetron is disposed between the first target and the substrate.
  • the ring-shaped magnetron is constructed from the same material as the first magnetron, or from just one of or some of the elements that make up the first target if the first target is a compound of multiple elements.
  • the first target and the ring-shaped target act periodically as the cathode and the anode .
  • the presence of the ring-shaped target helps to reduce contamination of the sputtered epitaxial film when the first magnetron target has positive voltage. Sputtering from both magnetron targets forms a film on the substrate.
  • the ring-shaped magnetron target may have a cooling arrangement, such as a water jacket, since the deposition of thick films requires longer periods of sputtering.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

La présente invention concerne la pulvérisation cathodique de couches épitaxiales, par mise en oeuvre d'une pluralité de magnétrons (2, 4) présentant différentes formes, telles qu'une forme plane (2) et une forme annulaire (4).
EP02799663A 2001-09-27 2002-09-27 Procede et appareil de pulverisation cathodique de couches epitaxiales a grande vitesse de depot Withdrawn EP1438443A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32533101P 2001-09-27 2001-09-27
US325331P 2001-09-27
PCT/US2002/030866 WO2003027351A1 (fr) 2001-09-27 2002-09-27 Procede et appareil de pulverisation cathodique de couches epitaxiales a grande vitesse de depot

Publications (1)

Publication Number Publication Date
EP1438443A1 true EP1438443A1 (fr) 2004-07-21

Family

ID=23267441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02799663A Withdrawn EP1438443A1 (fr) 2001-09-27 2002-09-27 Procede et appareil de pulverisation cathodique de couches epitaxiales a grande vitesse de depot

Country Status (4)

Country Link
EP (1) EP1438443A1 (fr)
JP (1) JP2005504171A (fr)
KR (1) KR20040044995A (fr)
WO (1) WO2003027351A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63243270A (ja) * 1987-03-30 1988-10-11 Sumitomo Light Metal Ind Ltd スパツタリングによる多層薄膜の形成法
JP2849771B2 (ja) * 1990-07-30 1999-01-27 日本電信電話株式会社 スパッタ型イオン源
JPH0816266B2 (ja) * 1990-10-31 1996-02-21 インターナショナル・ビジネス・マシーンズ・コーポレーション 高アスペクト比の穴に材料を付着させる装置
US5415757A (en) * 1991-11-26 1995-05-16 Leybold Aktiengesellschaft Apparatus for coating a substrate with electrically nonconductive coatings
US6368469B1 (en) * 1996-05-09 2002-04-09 Applied Materials, Inc. Coils for generating a plasma and for sputtering
JPH10219442A (ja) * 1996-12-05 1998-08-18 Tokyo Electron Ltd スパッタ装置
US6375810B2 (en) * 1997-08-07 2002-04-23 Applied Materials, Inc. Plasma vapor deposition with coil sputtering
JPH11269643A (ja) * 1998-03-20 1999-10-05 Toshiba Corp 成膜装置およびそれを用いた成膜方法
JPH11310874A (ja) * 1998-04-27 1999-11-09 Canon Inc 対向マグネトロン複合スパッタ装置および薄膜形成方法
US6231725B1 (en) * 1998-08-04 2001-05-15 Applied Materials, Inc. Apparatus for sputtering material onto a workpiece with the aid of a plasma
GB2346155B (en) * 1999-01-06 2003-06-25 Trikon Holdings Ltd Sputtering apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03027351A1 *

Also Published As

Publication number Publication date
KR20040044995A (ko) 2004-05-31
WO2003027351A1 (fr) 2003-04-03
JP2005504171A (ja) 2005-02-10

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