Specified Anode Particulars Patents (Class 204/298.14)
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Patent number: 11851750Abstract: An apparatus for performing a sputtering process on a substrate is provided. The apparatus includes a processing chamber having a substrate support on which the substrate is placed, a target for emitting target particles to be adhered to the substrate by plasma formed in the processing chamber, a magnet, provided on a rear surface of the target, for adjusting a state of the plasma on the surface of the target, and a magnet moving mechanism for repeatedly moving the magnet between a position on one side and a position on the other side set across a center portion on the rear surface of the target. The apparatus further includes a collimator having two regulating plates for limiting an incident angle of the target particles to the substrate, and an arrangement position adjustment mechanism adjusting positions of the two regulating plates according to the movement of the magnet.Type: GrantFiled: July 23, 2021Date of Patent: December 26, 2023Assignee: Tokyo Electron LimitedInventors: Masato Shinada, Einstein Noel Abarra, Hiroyuki Toshima, Shota Ishibashi
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Patent number: 11692807Abstract: A rotation angle sensing device is suggested, said device including: a magnetic field source that is mechanically coupled to a rotatable shaft; at least one conductive target that is mechanically coupled to the rotatable shaft; a magnetic angle sensor that is configured to detect the magnetic field of the magnetic field source; and at least one coil that is configured to excite an eddy current in the at least one conductive target and to receive a signal induced by the eddy current. Also, a corresponding method is provided.Type: GrantFiled: July 14, 2020Date of Patent: July 4, 2023Assignee: Infineon Technologies AGInventor: Udo Ausserlechner
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Patent number: 11621152Abstract: Methods and apparatus for processing a substrate using improved shield configurations are provided herein. For example, a process kit for use in a physical vapor deposition chamber comprises a shield comprising an inner wall comprising an upper portion having a first wavy fin configuration and a bottom portion having a second wavy fin configuration different from the first wavy fin configuration such that a surface area of the shield is about 1400 in2 to about 1410 in2.Type: GrantFiled: April 6, 2022Date of Patent: April 4, 2023Assignee: APPLIED MATERIALS, INC.Inventors: Soundarrajan Jembulingam, Jian Janson Chen, Jeonghoon Oh
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Patent number: 10615011Abstract: The present disclosure concerns sputter targets and sputtering methods. In particular, sputter targets and methods of sputtering using conventional sputter targets as well as sputter targets described herein, for highly uniform sputter deposition, are described.Type: GrantFiled: July 31, 2017Date of Patent: April 7, 2020Assignee: VIEW, INC.Inventors: Ronald M. Parker, Robert T. Rozbicki
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Patent number: 9957601Abstract: Apparatus for physical vapor deposition are provided herein. In some embodiments, a shield for use in a physical vapor deposition chamber, comprises an annular one-piece body having an inner volume, a top opening and a bottom opening, wherein a bottom of the annular one-piece body includes an inner upwardly extending u-shaped portion, an annular groove formed in an inner wall of the one-piece body, and a plurality of gas distribution vents disposed along the annular feature and formed through the one-piece body, wherein the plurality of gas distribution vents are spaced apart from each other to distribute gases into the inner volume in a desired pattern.Type: GrantFiled: March 15, 2013Date of Patent: May 1, 2018Assignee: APPLIED MATERIALS, INC.Inventors: Muhammad Rasheed, Kirankumar Savandaiah, Alan A. Ritchie, Isaac Porras, Keith A. Miller
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Patent number: 9508532Abstract: A magnetron plasma apparatus boosted by hollow cathode plasma includes at least one electrically connected pair of a first hollow cathode plate and a second hollow cathode plate placed opposite to each other at a separation distance of at least 0.1 mm and having an opening following an outer edge of a sputter erosion zone on a magnetron target so that a magnetron magnetic field forms a perpendicular magnetic component inside a hollow cathode slit between plates and, wherein the plates and are connected to a first electric power generator together with the magnetron target to generate a magnetically enhanced hollow cathode plasma in at least one of a first working gas distributed in the hollow cathode slit and a second working gas admitted outside the slit in contact with a magnetron plasma generated in at least one of the first working gas and the second working gas.Type: GrantFiled: March 12, 2014Date of Patent: November 29, 2016Assignee: BB PLASMA DESIGN ABInventors: Ladislav Bardos, Hana Barankova
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Patent number: 9087679Abstract: Embodiments of the invention generally relate to a grounding kit for a semiconductor processing chamber, and a semiconductor processing chamber having a grounding kit. More specifically, embodiments described herein relate to a grounding kit which creates an asymmetric grounding path selected to significantly reduce the asymmetries caused by an off center RF power delivery.Type: GrantFiled: February 3, 2012Date of Patent: July 21, 2015Assignee: APPLIED MATERIALS, INC.Inventors: Muhammad M. Rasheed, Rongjun Wang, Thanh X. Nguyen, Alan A. Ritchie
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Patent number: 9028660Abstract: A magnetron sputtering apparatus (100) comprising: a magnetic array arranged to create a magnetic field (103) in the vicinity of a tubular target (2) which target at least partially surrounds the magnetic array and acts as a cathode (2a); an anode (2b); the magnetic array being arranged to create an asymmetric plasma distribution with respect to the normal angle of incidence to a substrate (3); and means (1b) for enhancing the magnetic field to produce a relatively low impedance path for electrons flowing from the cathode (2a) to the anode (2b).Type: GrantFiled: August 14, 2008Date of Patent: May 12, 2015Assignee: Gencoa LtdInventor: Victor Bellido-Gonzalez
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Publication number: 20150122643Abstract: The present disclosure relates to a supporting member for a magnetron sputtering anode bar and a magnetron sputtering device including the supporting member. The supporting member comprises a supporting bar and a sputtering shield which can be fixedly connected with the supporting bar. A first end portion of the supporting bar is configured as a supporting end in cooperation with the anode bar, and a second end portion is configured as a mounting end which can be fixedly connected with a mounting hole of the sputtering shield so as to prevent the supporting bar from falling off the mounting hole. The cross section of the mounting end is smaller relative to that of the main body portion of the supporting bar. The supporting bar of the supporting member according to the present disclosure can be fixedly connected with the sputtering shield without accidental detachment.Type: ApplicationFiled: January 24, 2014Publication date: May 7, 2015Inventor: Jinping Xie
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Patent number: 8980071Abstract: Apparatuses for deposition of one or more layers. In one aspect, an apparatus for deposition of one or more layers includes an anode; a cathode; a vacuum chamber including the anode and the cathode; a sensor configured to detect an electric potential between a section of the at least one anode and a section of the chamber. Furthermore, methods to monitor a device for deposition of one or more layers are also described.Type: GrantFiled: August 27, 2010Date of Patent: March 17, 2015Assignee: Applied Materials, Inc.Inventors: Guido Mahnke, Bernhard Stock, Markus Hanika, Ferdinand Füller
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Patent number: 8940140Abstract: A device and method for coating an inside surface of a vessel is provided. In one embodiment, a coating device comprises a power supply and a diode in electrical communication with the power supply, wherein electrodes comprising the diode reside completely within the vessel. The method comprises reversibly sealing electrodes in a vessel, sputtering elemental metal or metal compound on the surface while maintaining the surface in a controlled atmosphere.Type: GrantFiled: September 5, 2007Date of Patent: January 27, 2015Assignee: Uchicago Argonne, LLCInventors: Dean R. Walters, Grantley O. Este
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Patent number: 8911602Abstract: A plasma source includes a hexagonal hollow cathode, the cathode including six targets and six magnets to generate and maintain a high density plasma; and an anode located beneath the cathode. A second hexagonal hollow cathode can be positioned concentric to the hexagonal hollow cahode.Type: GrantFiled: April 22, 2013Date of Patent: December 16, 2014Inventor: Makoto Nagashima
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Patent number: 8691063Abstract: The invention is an apparatus and method for depositing a coating onto a substrate. The apparatus includes a vacuum chamber with an inlet for supplying a precursor gas to the chamber. The chamber includes a carrier for locating the substrate in the chamber, a first anode having an aperture in which plasma can be formed, and a magnetic field source. The substrate, when located in the carrier, constitutes a first cathode. When a substantially linear magnetic field between the anode and the cathode is formed, the direction of the magnetic field is substantially orthogonal to the surface to be coated and plasma production and deposition takes place substantially within the linear magnetic field.Type: GrantFiled: February 15, 2008Date of Patent: April 8, 2014Assignee: Diamond Hard Surfaces Ltd.Inventor: Sergey Aleksandrov
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Patent number: 8574410Abstract: A high power impulse magnetron sputtering apparatus and method using a vacuum chamber with a magnetron target and a substrate positioned in the vacuum chamber. A field coil being positioned between the magnetron target and substrate, and a pulsed power supply and/or a coil bias power supply connected to the field coil. The pulsed power supply connected to the field coil, and the pulsed power supply outputting power pulse widths of greater that 100 ?s.Type: GrantFiled: February 17, 2009Date of Patent: November 5, 2013Assignee: The Regents of the University of CaliforniaInventor: Andre Anders
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Patent number: 8557093Abstract: A system for substrate deposition. The system includes a wafer pallet and an anode. The wafer pallet has a bottom and a top. The top of the wafer pallet is configured to hold a substrate wafer. The anode has a substantially fixed position relative to the wafer pallet and is configured to move with the wafer pallet through the deposition chamber. The anode is electrically isolated from the substrate wafer.Type: GrantFiled: March 22, 2007Date of Patent: October 15, 2013Assignee: SunPower CorporationInventors: Peter Cousins, Hsin-Chiao Luan, Thomas Pass, John Ferrer, Rex Gallardo, Stephen F. Meyer
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Patent number: 8512530Abstract: A sputtering apparatus includes a process chamber having first and second regions, a metal target inside the process chamber, a target transfer unit inside the process chamber, the target transfer unit being configured to move the metal target between the first and second regions, a substrate holder in the second region of the process chamber, and a magnetic assembly in the first region of the process chamber, the magnetic assembly being interposed between the target transfer unit and a wall of the process chamber.Type: GrantFiled: October 27, 2010Date of Patent: August 20, 2013Assignee: Samsung Display Co., Ltd.Inventors: Heung-Yeol Na, Jong-Won Hong, Seok-Rak Chang, Ki-Yong Lee
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Patent number: 8500973Abstract: A sputtering anode is disclosed wherein the anode is in the form of a container or vessel; and, wherein the conducting surface communicating with a cathode is the inside surface of the container or vessel. The anode can be mounted outside of a coating chamber having its opening communicating with the chamber or alternatively may be mounted within the chamber. The anode may be an inlet port for receiving inert gas for use in forming the plasma and for pressurizing the anode.Type: GrantFiled: March 11, 2009Date of Patent: August 6, 2013Assignee: JDS Uniphase CorporationInventors: Georg J. Ockenfuss, Richard I. Seddon
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Patent number: 8480865Abstract: The present invention relates to a magnetron sputtering device including a large ring cathode having a defined inner radius. The position of the ring cathode is offset in relation to a center point of a planetary drive system. An anode or reactive gas source may be located within the inner radius of the ring cathode. Lower defect rates are obtained through the lower power density at the cathode which suppresses arcing, while runoff is minimized by the cathode to planet geometry without the use of a mask.Type: GrantFiled: April 14, 2011Date of Patent: July 9, 2013Assignee: JDS Uniphase CorporationInventor: Georg J. Ockenfuss
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Patent number: 8470141Abstract: A magnetron sputtering electrode for use within a magnetron sputtering device that includes a cathode body, a target receiving area defined adjacent the cathode body, a plurality of magnets received within a magnet receiving chamber and an anode shield surrounding the cathode body. At least a portion of a coolant passageway is defined by the anode shield, whereby the coolant passageway is adapted to receive coolant to circulate therethrough thereby cooling the anode shield.Type: GrantFiled: April 26, 2006Date of Patent: June 25, 2013Assignee: Angstrom Sciences, Inc.Inventor: Mark A. Bernick
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Publication number: 20130153408Abstract: In order to produce zirconia-based layers on a deposition substrate, wherein reactive spark deposition using pulsed spark current and/or the application of a magnetic field that is perpendicular to the spark target are employed, a mixed target comprising elemental zircon and at least one stabilizer is used, or a zirconium target comprising elemental zirconium is used, wherein in addition to oxygen, nitrogen is used as the reactive gas. As an alternative, combined with the use of the mixed target, nitrogen can also be used as the reactive gas in addition to oxygen.Type: ApplicationFiled: September 24, 2010Publication date: June 20, 2013Applicant: OERLIKON TRADING AG, TRUEBBACHInventors: Jürgen Ramm, Beno Widrig
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Patent number: 8453487Abstract: A method of making metal target blank using circular groove pressing includes pressing a metal or metal alloy target blank in a first circular grooved pressing die set into a first concentric corrugated shape while maintaining an original diameter of the target blank to create concentric rings of shear deformation in the target blank. Forces are then applied to the concentric corrugated target blank sufficient to substantially flatten the target blank with a flat die set while maintaining the original diameter of the target blank to restore the target blank to a substantially flat condition. The target blank is pressed in a second circular grooved die set into a second concentric corrugated shape while maintaining the original diameter of the target blank, wherein the second die set has a groove pattern offset from a groove pattern of the first die set so as to create concentric rings of shear deformation in areas of the target blank which were not previously deformed.Type: GrantFiled: October 9, 2009Date of Patent: June 4, 2013Assignee: Tosoh SMD, Inc.Inventors: Eugene Y. Ivanov, Erich Theado, David B. Smathers
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Patent number: 8377269Abstract: There is provided an inexpensive sputtering apparatus in which self-sputtering can be stably performed by accelerating the ionization of the atoms scattered from a target. The sputtering apparatus has: a target which is disposed inside a vacuum chamber so as to lie opposite to the substrate W to be processed; a magnet assembly which forms a magnetic field in front of the sputtering surface of the target; and a DC power supply which charges the target with a negative DC potential. A first coil is disposed in a central portion of a rear surface of the sputtering surface of the target. The first coil is electrically connected between the first power supply and the output to the target. When a negative potential is charged to the target by the sputtering power supply, the electric power is charged to the first coil, whereby a magnetic field is generated in front of the sputtering surface.Type: GrantFiled: June 4, 2009Date of Patent: February 19, 2013Assignee: Ulvac, Inc.Inventors: Naoki Morimoto, Tomoyasu Kondo, Hideto Nagashima, Daisuke Mori, Akifumi Sano
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Patent number: 8268142Abstract: Apparatus for sputtering comprises a vacuum chamber, at least one first electrode having a first surface arranged in the vacuum chamber, a counter electrode having a surface arranged in the vacuum chamber and a RF generator. The RF generator is configured to apply a RF electric field across the at least one first electrode and the counter electrode so as to ignite a plasma between the first electrode and the counter electrode. The counter electrode comprises at least two cavities in communication with the vacuum chamber. the cavities each have dimensions such that a plasma can be formed in the cavity.Type: GrantFiled: December 22, 2009Date of Patent: September 18, 2012Assignee: OC Oerlikon Balzers AGInventors: Jürgen Weichart, Heinz Felzer
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Patent number: 8221594Abstract: The present invention is to provide a magnetron sputtering technique for forming a film having an even film thickness distribution for a long period of time. A magnetron sputtering apparatus of the present invention includes a vacuum chamber, a cathode part provided in the vacuum chamber, the cathode part holding a target on the front side thereof and having a backing plate to hold a plurality of magnets on the backside thereof, and a direct-current power source that supplies direct-current power to the cathode part. A plurality of control electrodes, which independently controls potentials, is provided in a discharge space on the side of the target with respect to the backing plate.Type: GrantFiled: September 16, 2010Date of Patent: July 17, 2012Assignee: Ulvac, Inc.Inventors: Yasuhiko Akamatsu, Kyuzo Nakamura, Motoshi Kobayashi, Junya Kiyota, Tomiyuki Yukawa, Masaki Takei, Yuuichi Oishi, Makoto Arai, Satoru Ishibashi
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Patent number: 8192597Abstract: A coating apparatus (100) for batch coating of substrates is presented. In the batch coater layers of a stack can be deposited by means of physical vapor deposition, by means of chemical vapor deposition or by a mixture of both processes. When compared to previous apparatus, the mixed mode process is particularly stable. This is achieved by using a rotatable magnetron (112) rather than the prior-art planar magnetrons. The apparatus is further equipped with a rotatable shutter that allows for concurrent or alternating process steps.Type: GrantFiled: March 14, 2007Date of Patent: June 5, 2012Assignee: NV Bekaert SAInventors: Erik Dekempeneer, Wilmert De Bosscher, Pascal Verheyen
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Patent number: 8182662Abstract: A rotary cathode for a magnetron sputtering apparatus is disclosed. The rotary cathode comprises a rotatable target cylinder, and a non-rotatable interior structure in the target cylinder. The interior structure has an outer surface and an inner passageway. An outer passageway is defined between an inner surface of the target cylinder and the outer surface of the interior structure. An end cap is affixed at a distal end of the target cylinder. A rotating aperture is adjacent to an inner surface of the target cylinder at the distal end thereof, with the rotating aperture configured to direct a fluid toward the inner surface at the distal end. A fluid pathway is at least partially defined by the end cap, with the pathway providing fluid communication between the outer passageway and the inner passageway through the rotating aperture.Type: GrantFiled: March 27, 2009Date of Patent: May 22, 2012Assignee: Sputtering Components, Inc.Inventor: Daniel Theodore Crowley
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Patent number: 8163144Abstract: The present invention relates to a magnetron sputtering device and technique for depositing materials onto a substrate at a high production rate in which the deposited films have predictive thickness distribution and in which the apparatus can operate continuously and repeatedly for very long periods. The present invention has realized increased production by reducing cycle time. Increased coating rates are achieved by coupling a planetary drive system with a large cathode. The cathode diameter is greater than the diameter of a planet and less than twice the diameter of the planet. Lower defect rates are obtained through the lower power density at the cathode which suppresses arcing, while runoff is minimized by the cathode to planet geometry without the use of a mask.Type: GrantFiled: August 17, 2005Date of Patent: April 24, 2012Inventors: Markus K. Tilsch, Richard I. Seddon, Georg J. Ockenfuss, Jeremy Hayes, Robert E. Klinger
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Patent number: 8133362Abstract: A physical vapor deposition apparatus includes a vacuum chamber having side walls, a cathode inside the vacuum chamber, wherein the cathode is configured to include a sputtering target, a radio frequency power supply configured to apply power to the cathode, an anode inside and electrically connected to the side walls of the vacuum chamber, a chuck inside and electrically isolated from the side walls of the vacuum chamber, the chuck configured to support a substrate, a clamp configured to hold the substrate to the chuck, wherein the clamp is electrically conductive, and a plurality of conductive electrodes attached to the clamp, each electrode configured to compress when contacted by the substrate.Type: GrantFiled: February 26, 2010Date of Patent: March 13, 2012Assignee: FUJIFILM CorporationInventors: Jeffrey Birkmeyer, Youming Li, Steve Deming, Mats G. Ottosson
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Patent number: 8083911Abstract: This invention relates to an apparatus (1) for treating, e.g. coating, a substrate (35, 39) in a vacuum chamber (2). In this vacuum chamber (2) there are arranged n cathodes (7-10) and n+1 anodes (28-32), each of said anodes adjacent to a cathode (7-10). Each of the n cathodes (7-10) and n of the assigned anodes (29-32) are connected to a power supply (11-14). One of the anodes (28) not being assigned to a cathode (7-10) is connected to an electrical line (63) which is connecting each of the anodes (28-32). A pull-down resistor (34) is connected to said line (63) at its one end and to ground (33) at its other end.Type: GrantFiled: February 14, 2008Date of Patent: December 27, 2011Assignee: Applied Materials, Inc.Inventors: Markus Hanika, Tobias Stolley
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Patent number: 8066857Abstract: A physical vapor deposition apparatus includes a vacuum chamber with side walls, a cathode, a radio frequency power supply, a substrate support, a shield, and an anode. The cathode is inside the vacuum chamber, and the cathode includes a sputtering target. The radio frequency power supply is configured to apply power to the cathode. The substrate support is inside and electrically isolated from the side walls of the vacuum chamber. The shield is inside and electrically connected to the side walls of the vacuum chamber. The anode is inside and electrically connected to the side walls of the vacuum chamber. The anode includes an annular body and an annular flange projecting inwardly from the annular body, and the annular flange is positioned to define a volume below the target for the generation of plasma.Type: GrantFiled: December 12, 2008Date of Patent: November 29, 2011Assignee: FUJIFILM CorporationInventors: Youming Li, Jeffrey Birkmeyer
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Patent number: 8043487Abstract: A physical vapor deposition apparatus includes a vacuum chamber with side walls, a cathode, a radio frequency power supply, a substrate support, and anode, and a shield. The cathode is inside the vacuum chamber and includes a sputtering target. The radio frequency power supply is configured to apply power to the cathode. The substrate support is inside and electrically isolated from the side walls of the vacuum chamber. The anode is inside and electrically connected to the side walls of the vacuum chamber. The shield is inside and electrically connected to the side walls of the vacuum chamber and includes an annular body and a plurality of concentric annular projections extending from the annular body.Type: GrantFiled: December 12, 2008Date of Patent: October 25, 2011Assignee: FUJIFILM CorporationInventors: Youming Li, Jeffrey Birkmeyer
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Patent number: 8038858Abstract: An apparatus for deposition of plasma reaction films includes a substrate for the deposition of either thin or thick films. The substrate also allows for a film deposition which adheres to the substrate, and also films which may be removed after deposition. The cathode may be fabricated from individual wires, or it may be fabricated from a single conductor. A macro-particle filter which preferentially traps larger particles may be introduced between a porous cathode and the deposition surface. The macro-particle filter may also carry electrical current as is useful for generating a magnetic field such that a Lorentz force acts preferentially on ionized particles, allowing them to pass through the filter while trapping macroparticles that are not influenced by the magnetic field.Type: GrantFiled: November 7, 2005Date of Patent: October 18, 2011Assignee: Alameda Applied Sciences CorpInventors: Brian L. Bures, Jason D. Wright, Michael Y. Au, Andrew N. Gerhan, Mahadevan Krishnan
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Patent number: 8038850Abstract: A sputter deposition apparatus and method, and a substrate holder for use with a sputter deposition apparatus is disclosed. According to one embodiment of the invention, a sputter deposition apparatus is provided, including at least one sputter target, a first plasma, a substrate holder, and a further plasma. In one embodiment, the further plasma is an ECWR plasma. According to an additional embodiment of the invention, an anode is provided between the further plasma, and the substrate holder. According to a further embodiment, the substrate holder includes a dielectric layer with varying thickness.Type: GrantFiled: June 23, 2006Date of Patent: October 18, 2011Assignee: Qimonda AGInventor: Klaus Ufert
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Patent number: 7951276Abstract: Described herein is an apparatus and a method for producing atom clusters based on a gas discharge within a hollow cathode. The hollow cathode includes one or more walls. The one or more walls define a sputtering chamber within the hollow cathode and include a material to be sputtered. A hollow anode is positioned at an end of the sputtering chamber, and atom clusters are formed when a gas discharge is generated between the hollow anode and the hollow cathode.Type: GrantFiled: June 7, 2007Date of Patent: May 31, 2011Assignee: The Board of Trustees of the University of IllinoisInventors: Todor I. Donchev, Ivan G. Petrov
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Publication number: 20110120862Abstract: The present disclosure relates to an anode rod for a sputtering system comprising a target, a lateral surface area of the anode rod is at least 2 times greater than the lateral surface area of the a circular cylinder having the same volume. Further, the present disclosure relates to a sputtering system comprising at least one anode rod, wherein the anode rod having a lateral surface area that is at least 2 times greater than the lateral surface area of the a circular cylinder having the same volume, and at least one sputtering cathode assembly comprising a backing device selected of the group consisting of a backing plate for a planar target, and a target backing tube for a rotatable cylindrical target.Type: ApplicationFiled: November 30, 2009Publication date: May 26, 2011Applicant: APPLIED MATERIALS, INC.Inventors: Wolfgang BUSCHBECK, Marcus BENDER, Ralph LINDENBERG, Wolfgang KLEIN, Thomas BERGER
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Patent number: 7932678Abstract: A magnetic mirror plasma source includes a gap separating a substrate from a cathode. A mirror magnetic field extends between the substrate and the cathode through the gap. The magnetic field lines at a proximal surface of the substrate are at least two times as strong as those field lines entering the cathode. An anode is disposed such that a closed loop electron Hall current containment region is formed within the magnetic field.Type: GrantFiled: September 13, 2004Date of Patent: April 26, 2011Assignee: General Plasma, Inc.Inventor: John Madocks
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Patent number: 7922880Abstract: Local plasma density, e.g., the plasma density in the vicinity of the substrate, is increased by providing an ion extractor configured to transfer ions and electrons from a first region of magnetically confined plasma (typically a region of higher density plasma) to a second region of plasma (typically a region of lower density plasma). The second region of plasma is preferably also magnetically shaped or confined and resides between the first region of plasma and the substrate. A positively biased conductive member positioned proximate the second region of plasma serves as an ion extractor. A positive bias of about 50-300 V is applied to the ion extractor causing electrons and subsequently ions to be transferred from the first region of plasma to the vicinity of the substrate, thereby forming higher density plasma. Provided methods and apparatus are used for deposition and resputtering.Type: GrantFiled: May 24, 2007Date of Patent: April 12, 2011Assignee: Novellus Systems, Inc.Inventors: Anshu A. Pradhan, Douglas B. Hayden, Ronald L. Kinder, Alexander Dulkin
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Patent number: 7879209Abstract: A magnetron sputtering cathode for use in a vacuum deposition process is disclosed wherein the cathode is coated on its sides with an electrically insulating material such as alumina to prevent arcing, and wherein the first end surface of the cathode supports a material to be sputtered. The bottom of the cathode may also be coated with an electrically insulating coating or may be resting upon an insulating platform.Type: GrantFiled: July 8, 2005Date of Patent: February 1, 2011Assignee: JDS Uniphase CorporationInventors: Markus K. Tilsch, Georg J. Ockenfuss, Richard I. Seddon, Robert E. Hahn
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Patent number: 7850828Abstract: The apparatus and method involve using a gas manifold for introducing gas into a deposition chamber. Certain embodiments involve using a binary manifold for uniform distribution of the gas with good response time. During sputtering operations, provision of an anode using the gas manifold enables such anode to be entirely protected from sputtered dielectric material during the deposition process. As such, conduction paths are initially established and maintained between electrons within the chamber and the anode. This results in improved maintenance of stable plasma and consistent coating in the deposition chamber. The conduction paths are enhanced in comparison to conventional systems due to increased collisions between the electrons and gas flowing out of the manifold outlets. Also, ionization of the gas flowing from the manifold outlets is enhanced, resulting in enhanced deposition output from the system.Type: GrantFiled: September 15, 2006Date of Patent: December 14, 2010Assignee: Cardinal CG CompanyInventor: John German
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Publication number: 20100276283Abstract: The apparatus includes a coating chamber, two or more cathodes which are arranged peripherally within the coating chamber, substrate carriers for holding the substrate, vacuum pumps and voltage sources wherein an individual anode is arranged centrally between the cathodes in the coating chamber and the substrate is positioned between the anode and the cathode. In each case a gas discharge with a plasma is ignited between the individual anode and the cathodes. The substrates are held fixed in position or are rotated about one or more axes and in the process subjected to the plasma.Type: ApplicationFiled: December 3, 2007Publication date: November 4, 2010Inventors: Wolf-Dieter Muenz, Stefan Kunkel
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Publication number: 20100243428Abstract: A rotary cathode for a magnetron sputtering apparatus is disclosed. The rotary cathode comprises a rotatable target cylinder, and a non-rotatable interior structure in the target cylinder. The interior structure has an outer surface and an inner passageway. An outer passageway is defined between an inner surface of the target cylinder and the outer surface of the interior structure. An end cap is affixed at a distal end of the target cylinder. A rotating aperture is adjacent to an inner surface of the target cylinder at the distal end thereof, with the rotating aperture configured to direct a fluid toward the inner surface at the distal end. A fluid pathway is at least partially defined by the end cap, with the pathway providing fluid communication between the outer passageway and the inner passageway through the rotating aperture.Type: ApplicationFiled: March 27, 2009Publication date: September 30, 2010Applicant: SPUTTERING COMPONENTS, INC.Inventor: Daniel Theodore Crowley
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Publication number: 20100181192Abstract: The invention relates to an anode for the formation of plasma by means of the development of electric arc discharges starting from a target connected as cathode for coating of substrates with target material in a vacuum. It is an object of the invention to propose a possibility by means of which the coating rate at least can be increased without substantially increasing the effort related to plant engineering required for this. The anode according to the invention for the plasma formation by means of the development of electric arc discharges starting from a target connected as cathode is then disposed in a known manner in a distance to the target. At the same time, anode bars are present initially disposed in parallel to the surface of the targets on the anode. In addition, strip-shaped elements being separated from each other by gaps are formed on the anode. Then, the strip-shaped elements start from the anode bars and face in the direction of a substrate to be coated on the surface.Type: ApplicationFiled: April 21, 2008Publication date: July 22, 2010Inventor: Carl-Friedrich Meyer
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Patent number: 7744731Abstract: A sputtering deposit apparatus capable of depositing a thin film having uniform sheet resistance value is provided. The sputtering deposit apparatus is arranged with at least two magnetron sputtering units within a film deposit chamber. On the upstream side in the substrate transfer direction 43 of the target shield 55 provided on the magnetron sputtering unit disposed on the most upstream side in the substrate transfer direction, of at least the two magnetron sputtering units, there is disposed the first cathode shield 62 which is electrically insulated.Type: GrantFiled: December 17, 2008Date of Patent: June 29, 2010Assignee: Canon Anelva CorporationInventor: Masao Sasaki
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Patent number: 7678239Abstract: A magnetron sputtering source includes a plurality of electrodes and a switching circuit. The switching circuit sequentially connects each of the plurality of electrodes to a ground reference, making it anodic, while connecting the remaining of the plurality of electrodes as cathodes. A method of operating the magnetron sputtering source includes steps of: providing a plurality of target arrangements; causing each of the plurality of target arrangements to act as a cathode; and sequentially causing each of the plurality of cathodes to temporarily act as an anode.Type: GrantFiled: July 23, 2004Date of Patent: March 16, 2010Assignee: Oerlikon Solar IP AG, TrubbachInventors: Walter Haag, Pius Gruenenfelder
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Patent number: 7678240Abstract: Magnetron source has a target configuration with a sputter surface, a magnet configuration generating above the sputter surface a magnetic field which forms, in top view onto the sputter surface, at least one magnet field loop. Viewed in a cross-sectional direction upon the target configuration, a tunnel-shaped arc magnet field is formed and further an electrode configuration is provided which generates, when supplied by a positive electric potential with respect to an electric potential applied to the target configuration, an electric field which crosses at an angle the magnetic field and wherein the electrode configuration comprises a distinct electrode arrangement in a limited segment area of the electrode configuration, which is substantially shorter than the overall length of the magnet field loop.Type: GrantFiled: March 21, 2008Date of Patent: March 16, 2010Assignee: OC Oerlikon Balzers AGInventor: Siegfried Krassnitzer
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Patent number: 7644745Abstract: A target assembly including a plurality of target tiles bonded to a backing plate by adhesive, for example of indium or conductive polymer, filled into recesses in the backing plate formed beneath each of the target tiles. A sole peripheral recess formed as a rectangular close band may be formed inside the tile periphery. Additional recesses may be formed inside the peripheral recess, preferably symmetrically arranged about perpendicular bisectors of rectangular tiles. The depth and width of the recesses may be varied to control the amount of stress and the stress direction.Type: GrantFiled: June 6, 2005Date of Patent: January 12, 2010Assignee: Applied Materials, Inc.Inventors: Hien-Minh Huu Le, Akihiro Hosokawa
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Publication number: 20090250341Abstract: A sputtering anode is disclosed wherein the anode is in the form of a container or vessel; and, wherein the conducting surface communicating with a cathode is the inside surface of the container or vessel. The anode can be mounted outside of a coating chamber having its opening communicating with the chamber or alternatively may be mounted within the chamber. The anode may be an inlet port for receiving inert gas for use in forming the plasma and for pressurizing the anode.Type: ApplicationFiled: March 11, 2009Publication date: October 8, 2009Inventors: Georg J. Ockenfuss, Markus K. Tilsch, Richard I. Seddon, Robert E. Hahn
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Publication number: 20090159432Abstract: A discharge electrode, a thin-film deposition apparatus, and a solar cell fabrication method, which suppress the generation of a film thickness distribution and a film quality distribution, are provided. The discharge electrode includes two lateral structures 20 that are substantially parallel to each other and extend in an X direction; and a plurality of longitudinal structures 21a that are provided between the two lateral structures, are substantially parallel to each other, and extend in a Y direction substantially orthogonal to the X direction. The longitudinal structures 21a each include an electrode main body 35 whose one end 35a is connected to one of the lateral structures 20 and whose the other end 35b is connected to the other lateral structure 20; a gas pipe 41 disposed in a gas-pipe accommodating space 36; and a porous body 40. An opening 38 opens to a substrate 8 and is covered with the porous body 40. A gas diffusion path 37 connects the gas-pipe accommodating space 36 and the opening 38.Type: ApplicationFiled: August 22, 2007Publication date: June 25, 2009Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shingo Kawano, Eiichiro Ohtsubo, Naoyuki Miyazono, Keisuke Kawamura, Yoshiaki Takeuchi
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Publication number: 20090159440Abstract: A plasma processing apparatus comprises a processing chamber in which a plurality of substrates are stacked and accommodated; a pair of electrodes extending in the stacking direction of the plurality of substrates, which are disposed at one side of the plurality of substrates in said processing chamber, and to which high frequency electricity is applied.; and a gas supply member which supplies processing gas into a space between the pair of electrodes.Type: ApplicationFiled: February 20, 2009Publication date: June 25, 2009Applicant: HITACHI KOKUSAI ELECTRIC INC.Inventors: Kazuyuki TOYODA, Yasuhiro INOKUCHI, Motonari TAKEBAYASHI, Tadashi KONTANI, Nobuo ISHIMARU
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Patent number: 7550055Abstract: Embodiments of the present invention generally relate to sputtering targets used in semiconductor manufacturing. In particular, the invention relates to bonding the sputtering target to a backing plate that supports the sputtering target in a deposition chamber. In one embodiment, a method of bonding at least one sputtering target tile to a backing plate comprises providing an elastomeric adhesive layer between the at least one sputtering target tile and the backing plate, and providing at least one metal mesh within the elastomeric adhesive layer, wherein at least a portion of the at least one metal mesh contacts both the at least one sputtering target tile and the backing plate, and the at least a portion of the at least one metal mesh is made of metal wire with diameter greater than 0.5 mm.Type: GrantFiled: September 12, 2005Date of Patent: June 23, 2009Assignee: Applied Materials, Inc.Inventors: Hienminh H. Le, Akihiro Hosokawa