Plural Diverse Treatment Stations, Zones, Or Coating Material Source Within Single Chamber Patents (Class 204/298.26)
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Patent number: 6309516Abstract: A method and apparatus for sputter deposition of metal alloys with improved compositional uniformity is provided, wherein a first, narrow width target is provided with a sputtering surface comprised of a metal alloy including metal elements having different angular distributions of sputtered atoms, and a wider width substrate having a deposition surface is moved past the sputtering surface, whereby the deposition surface traverses all arrival angles of the sputtered atoms thereby compensating for the different angular distributions of the sputtered atoms. The inventive methodology finds particular utility in the manufacture of magnetic and magneto-optical (MO) recording media.Type: GrantFiled: February 1, 2000Date of Patent: October 30, 2001Assignee: Seagate Technology LLCInventor: Paul Stephen McLeod
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Patent number: 6290826Abstract: A sputtering apparatus includes a vacuum housing, a substrate holder disposed in the vacuum housing for holding a substrate thereon, and a composite sputtering cathode assembly disposed in the vacuum housing. The composite sputtering cathode assembly has a plurality of targets and a plurality of shields each disposed between adjacent ones of the targets. The targets are disposed in confronting relation to the substrate held on the substrate holder. Those sputtering particles expelled from the targets which are directed obliquely to the substrate hit the shields and do not reach the substrate. Only those sputtering particles which are directed substantially perpendicularly to the substrate are applied to the substrate. The distribution of film thicknesses on the substrate is made uniform when the substrate and the targets rotate relatively to each other.Type: GrantFiled: October 20, 1997Date of Patent: September 18, 2001Assignee: Nihon Shinku Gijutsu Kabushiki KaishaInventors: Hisaharu Obinata, Morohisa Tamura, Yasushi Higuchi, Takashi Komatsu
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Patent number: 6287430Abstract: The present invention is drawn to an apparatus for forming a thin film. The apparatus includes a vacuum chamber; a vacuum apparatus connected to the vacuum chamber; a holder placed in the vacuum chamber, which holder holds a substrate and is rotated by means of a rotating mechanism; a plasma CVD apparatus; and a sputtering apparatus, wherein the plasma CVD apparatus and the sputtering apparatus are placed in a single vacuum chamber and a thin film having an medium refractive index is formed on the substrate held by the holder, by means of the plasma CVD apparatus and the sputtering apparatus. The method making use of such an apparatus is also disclosed.Type: GrantFiled: December 21, 1999Date of Patent: September 11, 2001Assignee: Shincron Co., Ltd.Inventors: Shigeharu Matsumoto, Kazuo Kikuchi, Yizhou Song, Takeshi Sakurai, Shinichiro Saisho
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Publication number: 20010017261Abstract: The invention relates to the deposition of material onto surfaces of a substrate, typically respective concave and convex surfaces and provides a system whereby the substrates are held in a mutually sealed relationship by a carrier during the deposition of material onto respective surfaces thereby preventing or minimising the problem of lack of adhesion of the material on the surfacesType: ApplicationFiled: February 16, 2001Publication date: August 30, 2001Inventors: John Michael Walls, Alaric Graham Spencer, Norman Henry White, Alan Robert Waugh
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Patent number: 6277250Abstract: A cathode arrangement for physical vapor deposition onto substrates with high aspect ratio features for achieving high flat-field uniformity. The cathode arrangement includes two cathodes, a planar cathode and a conical cathode, where the conical cathode is truncated to provide an orifice in which the planar cathode is oriented. The angular distributions of sputtered atoms from the two cathodes complement one another to provide more uniform deposition.Type: GrantFiled: October 19, 2000Date of Patent: August 21, 2001Assignee: Tokyo Electron LimitedInventors: Derrek A. Russell, Mirko Vukovic
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Publication number: 20010013470Abstract: A mirrortron sputtering apparatus for sputtering on a substrate includes a vacuum chamber for placing therein a pair of targets spaced apart from each other with inner surfaces thereof facing each other and outer surfaces thereof positioned opposite to the inner surfaces, and magnets respectively disposed closer to the outer surfaces of the targets for forming a magnetic field between said pair of targets. The magnetic field has a magnetic field distribution with a peripheral region having a high magnetic flux density and a center region having a low magnetic flux density. In this arrangement, the substrate is set alongside a space between the pair of targets as facing said magnetic field.Type: ApplicationFiled: February 8, 2001Publication date: August 16, 2001Inventors: Toyoaki Hirata, Masahiko Naoe
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Patent number: 6273955Abstract: A film forming apparatus for forming a plurality of films on a substrate through a continuous process, comprising a plurality of vacuum chambers in communication to each other via connection, at least vacuum chamber having internally a treatment detachable from the vacuum chamber for fulfilling a predetermined treatment on the substrate.Type: GrantFiled: August 28, 1996Date of Patent: August 14, 2001Assignee: Canon Kabushiki KaishaInventors: Takehito Yoshino, Hiroshi Echizen, Masahiro Kanai, Hirokazu Otoshi, Atsushi Yasuno, Kohei Yoshida, Koichiro Moriyama, Masatoshi Tanaka
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Patent number: 6274014Abstract: A method for forming a thin film of a metal compound is disclosed. Within a vacuum chamber, a metallic ultra-thin film of a metal or an incompletely-reacted metal is deposited on a substrate. The metallic ultra-thin film is brought in contact with the electrically neutral activated species of a reactive gas so as to convert the metallic ultra-thin film to an ultra-thin film of a metal compound through the reaction of the metallic ultra-thin film with the activated species of the reactive gas. The above-described steps are sequentially repeated so as to deposit on the substrate the ultra-thin film of the metal compound in layers until a thin film of the metal compound having a desired thickness is formed on the substrate.Type: GrantFiled: March 2, 2000Date of Patent: August 14, 2001Assignee: Shincron Co., Ltd.Inventors: Shigeharu Matsumoto, Kazuo Kikuchi
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Publication number: 20010011634Abstract: This invention provides a process for coating super fine ion particles of multiple elements on the surface of a micro router substrate, characteristics of which is that the coating step is operated under low temperatures and vacuums. First, raw micro routers are cleaned by electron beams under atmospheric pressures and room temperatures, then the raw micro routers are transferred into a vacuum environment, and increase the temperature of the environment. Next, the surface of the micro router is cleaned by ions, then proceed with the coating process. An arc source is used to bombard cations from a target, while a filtration net is used to get filtrate of small cation particles. Then, an ion assistant device is operated to further fine the filtrated particles, therefore only super fine ion particles are coated on the surface of the micro router substrates.Type: ApplicationFiled: December 28, 2000Publication date: August 9, 2001Inventors: Chung-Lin Chou, Chen-Chun Hsu
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Patent number: 6270633Abstract: The present invention relates to an artificial latticed multi-layer film deposition apparatus for depositing on a substrate a gigantic magneto-resistive effect film (GMR film) having an artificial lattice structure formed of magnetic metal films and non-magnetic metal films alternately laminated one over the other and its object is to provide the artificial latticed multi-layer film deposition apparatus to enable easy and secure deposition of an artificial latticed multi-layer film having GMR characteristics.Type: GrantFiled: October 28, 1999Date of Patent: August 7, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuhiro Onaka, Sumio Maekawa, Shigeru Yamamoto, Masafumi Okamoto
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Publication number: 20010009221Abstract: There may be used a film-forming apparatus having a substrate 4 that is rotatable around the center of one rotating axis 10 in the vertical direction situated in an inner cylinder 12, and a plurality (four in FIG. 2) of target units each comprising the pair of targets 2A, 2B (2B is under 2A serially arranged in the vertical direction inside an outer cylinder 13 opposite the surface 4a of the substrate 4, which are arranged in parallel in the circumferential direction of the inner wall of the outer cylinder 13. By employing a method whereby voltage is applied while alternately reversing the polarity to each of the targets 2A, 2B, it is possible to form a coating on the surface of a substrate by glow discharge sputtering, to accomplish destaticizing while the sputtering can be carried out using a small in-line or bell jar apparatus with small space.Type: ApplicationFiled: January 18, 2001Publication date: July 26, 2001Inventors: Toshiaki Anzaki, Kenji Mori
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Patent number: 6251232Abstract: A substrate holder 90 where a thin film has accumulated on the surface of the holding claws 91 is transferred in a state where no substrate 9 is being held into a film removal chamber 70 which is established branching off in such a way that the vacuum is connected from the square transfer path 80 along which a plurality of vacuum chambers including the film deposition chambers 51, 52, 53, 54 and 50 is established. A high frequency power supply 73 is connected via the movable electrode 74 to the holder body 92 and a high frequency electric field is established within the film removal chamber 70. A plasma is formed by generating a high frequency discharge in the gas which is being delivered by means of the gas delivery system 72 and the accumulated film on the surface of the holding claws 91 is removed in a vacuum by sputter etching due to ion impacts.Type: GrantFiled: February 22, 2000Date of Patent: June 26, 2001Assignee: Anelva CorporationInventors: Yoshiki Aruga, Koji Maeda
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Patent number: 6241824Abstract: In an apparatus for the coating of substrates in a vacuum with rotatable substrate carriers (15,16,20) and with a loading and an unloading station (8 or 9), two vacuum chambers (3,4) are provided with several coating stations (6,7 or 10 to 14), directly next to one another, wherein a rotatable transport arm (15 or 16) is accommodated in each of the two chambers (3, 4), and the transport planes of the two transport arms (15,16) are aligned with one another. In the separation area of the two chambers (3,4), an air lock is provided with a corresponding transfer apparatus (5) with two transport arms (15,16), whose rotary plate (20) is provided with substrate storage unit (21,22) and projects about halfway into one chamber (3) and halfway into the other chamber (4), wherein one chamber (3) has both the loading as well as the unloading station (8 or 9).Type: GrantFiled: August 4, 1999Date of Patent: June 5, 2001Assignee: Leybold Systems GmbHInventors: Günter Bräuer, Hermann Kloberdanz, Hans-Georg Lotz, Jochen Schneider, Alfons Zöller, Harro Hagedorn, Michael König, Jürgen Meinel, Götz Teschner
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Publication number: 20010002002Abstract: Deposition apparatus incorporating either a single or multiple filtered cathodic arc (FCA) source for depositing coatings such as tetrahedral amorphous carbon (TAC); metal oxides; compounds and alloys of such materials onto various types of substrates, such as metals semiconductors, plastics ceramics and glasses. Substrates are moved through the plasma beam(s) of the FCA source(s) and beam scanning increases deposition area. Macroparticles are filtered by a double bend filter duct.Type: ApplicationFiled: November 21, 1997Publication date: May 31, 2001Applicant: FILPLAS VACUUM TECHNOLOGY PTE, LTD.Inventors: DAVID IAN FLYNN, MICHAEL FULTON, XU SHI, HONG SIANG TAN, BENG KANG TAY
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Patent number: 6238526Abstract: The invention provides a sputtering system which consists of an ion beam and a target of a sputterable material. A distinguishing feature of the system of the invention is that the sputtering target forms a guide channel for an ion beam and sputtered particles, so that a portion of the ions collides with the walls of the target inside a closed volume of the target and forms neutral sputterable particles impinging the object. The other part of the ions goes directly to the object and participates in an ion-assisted overcoating. Thus, the special form of the target improves efficiency of sputtering, prevents scattering and the loss of the sputterable material. The system can be realized in various embodiments. One of the embodiments provides a multiple-cell system in which each cell has an individual ion-emitting slit formed by the end of a cathode rod of one cathode plate and the opening in the second cathode plate.Type: GrantFiled: February 14, 1999Date of Patent: May 29, 2001Assignee: Advanced Ion Technology, Inc.Inventors: Yuri Maishev, James Ritter, Leonid Velikov, Alexander Shkolnik
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Patent number: 6238527Abstract: A film forming apparatus for forming a minute thin film at a high depositing rate, which comprises a substrate holding means for holding a substrate, a target holding means for holding a target, a gas supply means for supplying a sputtering gas for sputtering the target into a reaction chamber, and an electric power supply means for supplying an electric power for causing an electric discharge between the target and the substrate, wherein a partition member having a plurality of openings provided between the target and the substrate, and wherein means for supplying a reaction gas and a microwave are provided in a space between the partition member and the substrate.Type: GrantFiled: September 30, 1998Date of Patent: May 29, 2001Assignee: Canon Kabushiki KaishaInventors: Kazuho Sone, Nobumasa Suzuki
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Patent number: 6235170Abstract: A hollow cathode magnetron for sputtering target material from the inner surface of a target onto an off-spaced substrate. The magnetron is in the shape of a truncated cone, also known as a conical frustum. The target cone is backed by a conical cathode maintained at a predetermined voltage for attracting gas ions into the inner surface of the target cone to sputter material therefrom. The inner surface of the cone is bounded at its inner and outer edges by magnetic pole pieces orthogonal to and extending inwardly and outwardly of the cone surface. The magnetic path is completed by a conical magnet surrounding the target and conical electrode and magnetically connected to the pole pieces to form a magnetic cage. Lines of magnetic flux extending above the target surface between the pole pieces are substantially parallel with the target surface, providing uniform erosion over the entire surface.Type: GrantFiled: January 19, 2000Date of Patent: May 22, 2001Inventor: David A. Glocker
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Patent number: 6231732Abstract: A cylindrical carriage sputtering system for disk, wafer, and flat panel substrates (20) comprising a cylindrical shaped vacuum sealed passageway formed by two concentric inner (11) and outer hollow cylinders (12), along with a top and a bottom sealing flange (13, 14). A central hollow cylinder (15), disposed between the inner (11) and outer cylinder (12), includes substrate-carrying openings and serves as a cylindrical carriage which substantially fills the sealed passageway and is rotatable in predetermined steps. Novel substrate processing devices (16) for deposition, heating, and cooling are attached around the circumference of the inner and outer cylindrical walls. Vacuum pumps are located between substrate processing devices (16). The openings in the cylindrical carriage are each fitted with thermally isolated substrate holders (19) for supporting a multiplicity of substrates (20).Type: GrantFiled: September 2, 1999Date of Patent: May 15, 2001Assignee: SciVacInventors: Dennis R. Hollars, Robert B. Zubeck
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Patent number: 6228234Abstract: The invention provides an apparatus for sputtering, with which it is easy to control gas flow rate in a short time, and relates to an apparatus for sputtering in which reactive gas is supplied to a gas distributor having a plurality of gas nozzles provided in a vacuum chamber, the reactive gas is jetted from the gas nozzles, and a gauge port type connector for detaching the gas distributor is provided in the vacuum chamber. The gas nozzles comprise screws, each screw has a hole for jetting reactive gas and is directed in the outside direction of the chamber. Therefore, it is possible to change the gas flow rate easily in a short time.Type: GrantFiled: December 29, 1998Date of Patent: May 8, 2001Assignee: Sony CorporationInventors: Yoshihiro Oshima, Masayasu Kakinuma
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Patent number: 6224725Abstract: An improved unbalanced magnetron sputtering (UMS) apparatus in accordance with the invention having a conventional target and arrangement of magnets wherein a central portion of the target is backed by a first magnetic pole and the peripheral portion of the target is backed by a second magnetic pole, the poles carrying unequal numbers of lines of magnetic flux. One of the poles has a greater number of flux lines entering or leaving than does the other pole. The field lines extending from the higher flux pole which do not close in the lower flux pole extend into space in a range of directions and generally toward a substrate to be sputter coated. Adjacent the target and electrically isolated therefrom and overlying the higher flux pole is an independently-controllable auxiliary electrode, preferably a cathode, formed of a non-ferromagnetic material and having a surface facing in the same general direction as the sputterable surface of the target.Type: GrantFiled: February 2, 2000Date of Patent: May 1, 2001Assignee: Isoflux, Inc.Inventor: David A. Glocker
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Patent number: 6217951Abstract: An impurity solid including boron as impurity and a solid sample to which boron is introduced are held in a vacuum chamber. Ar gas is introduced into the vacuum chamber to generate plasma composed of the Ar gas. A voltage allowing the impurity solid to serve as a cathode for the plasma is applied to the impurity solid and the impurity solid is sputtered by ions in the plasma, thereby mixing boron included in the impurity solid into the plasma composed of Ar gas. A voltage allowing the solid sample to serve as a cathode for the plasma is applied to the solid sample, and boron mixed into the plasma is introduced to the surface portion of the solid sample.Type: GrantFiled: October 21, 1996Date of Patent: April 17, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Bunji Mizuno, Hiroaki Nakaoka, Michihiko Takase, Ichiro Nakayama
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Patent number: 6217714Abstract: In a sputtering apparatus, in a vacuum chamber having a gas supply and a gas discharge functions, a substrate is set to a supporting part therefor and a target is disposed at an electrode connected with a power source within a plane opposite to the substrate, so as to form a film while holding the substrate in a fixed state to the target. The electrode is divided into three or more electrode parts, the target is divided and disposed on the three or more electrode parts within the plane, and a magnet is arranged for each divided target at a position where a line of magnetic force on a surface of the each target is generated by each magnet.Type: GrantFiled: June 28, 1996Date of Patent: April 17, 2001Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Munekazu Nishihara, Teiichi Kimura, Isamu Aokura
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Patent number: 6217730Abstract: A sputtering device enabling a small incident angle. A plurality of shield plates provided with holes at the same positions as targets are arranged in a vacuum chamber. Sputtering particles ejected diagonally from the targets 51-59 become attached to the shield plates 21-23 and only particles ejected vertically reach the surface of a substrate 12. As a result, it is possible to uniformly form a thin film inside microscopic holes of high aspect ratio. If sputtering gas is introduced close to the targets 51-59, reactant gas is introduced close to the substrate 12 and evacuation carried out close to the substrate 12, reactant gas does not reach the targets 51-59 side. Consequently, it is possible to prevent deterioration of the surfaces of the targets 51-59.Type: GrantFiled: April 13, 2000Date of Patent: April 17, 2001Assignee: Nihon Shinku Gijutsu Kabushiki KaishaInventors: Kuniaki Nakajima, Tomoyasu Kondo, Tsuyoshi Sahoda, Yasushi Higuchi, Takashi Komatsu
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Patent number: 6197165Abstract: Ionized physical vapor deposition (IPVD) is provided by a method of apparatus for sputtering coating material from a compound sputtering source formed of an annular ring-shaped target with a circular target at its center, increasing deposition rate and coating uniformity. Each target is separately energized to facilitate control of the distribution of material sputtered into the chamber and the uniformity of the deposited film. The sputtered material from the targets is ionized in a processing space between the target and a substrate by generating a dense plasma in the space with energy coupled from a coil located outside of the vacuum chamber behind an annular dielectric window in the chamber wall in the central opening of the annular target and surrounding the circular target. A Faraday type shield physically shields the window to prevent coating material from coating the window, while allowing the inductive coupling of energy from the coil into the processing space.Type: GrantFiled: March 3, 1999Date of Patent: March 6, 2001Assignee: Tokyo Electron LimitedInventors: John S. Drewery, Thomas J. Licata
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Patent number: 6183831Abstract: Disclosed is a system for transporting disks in vacuum to a vacuum station whereat a lubricant film is applied uniformly to the surfaces of the disks by evaporation. Thickness uniformity is achieved by directing the evaporate through a multi-hole aperture plate. Described is equipment for manufacture, the process of manufacture and the novel disks created.Type: GrantFiled: August 20, 1998Date of Patent: February 6, 2001Assignee: Intevac, Inc.Inventors: John L. Hughes, Benjamin M. DeKoven, Richard E. Lavine
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Patent number: 6183615Abstract: A wafer processing system includes a plurality of evacuable housings connected in series to form a processing line, with a plurality isolation valves to separately isolate the housings. A track extends through the connected housings. At least one wafer carrier is moveable on the track, through the housings and along the processing line. The wafer carrier holds wafers in vertical orientation and also includes a plurality of magnets aligned along its bottom. Outside the housings, a plurality of magnetic drive units are aligned parallel with the track, with one drive unit per housing. Each drive unit includes a motor driven conveyor with a plurality of magnets mounted thereon which imposes magnetic fields inside the housing to magnetically couple with the magnets mounted on the carrier. When the motor driven conveyor moves the imposed magnetic fields, the magnetic coupling causes the wafer carrier to move.Type: GrantFiled: February 17, 1995Date of Patent: February 6, 2001Assignee: Tokyo Electron LimitedInventors: Tugrul Yasar, Rodney Lee Robison, Daniel Deyo, Marian Zielinski
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Patent number: 6176982Abstract: A method of applying a coating to a metallic article (10) comprises placing the metallic article within a hollow cathode (38) in a vacuum chamber (30), evacuating the vacuum chamber (30), applying a negative voltage to the hollow cathode (38) to produce a plasma and such that the material of the hollow cathode (38) is sputtered onto the metallic article (10) to produce a coating (22). A positive voltage (V1) is applied to the metallic article (10) to attract electrons from the plasma to heat the coating (22) and so inter-diffuse the elements of the metallic article (10) and the protective coating (22) and a negative voltage (V2) is applied to the metallic article (10) to attract ions from the plasma to bombard the coating (22) to minimize defects in the coating (22).Type: GrantFiled: September 29, 1999Date of Patent: January 23, 2001Assignee: Rolls-Royce, PLC.Inventor: David S Rickerby
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Patent number: 6171454Abstract: Described is a method for coating surfaces using a facility having sputtering electrodes, which has at least two electrodes that are spaced apart from one another and arranged inside a process chamber, and an inlet for a process gas. The two sputtering electrodes are acted upon by a bipolarly pulsed voltage in such a way that they are alternately operated as cathodes and as anodes. In addition, the frequency of the voltage is set between 1 kHz and 1 MHz. Furthermore, and that the operating parameters are selected in such a way that in operation, the electrodes are at least partially covered by a coating material.Type: GrantFiled: September 16, 1999Date of Patent: January 9, 2001Assignee: Robert Bosch GmbHInventors: Thomas Weber, Johannes Voigt, Susanne Lucas
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Patent number: 6171458Abstract: A spectral selective absorbing surface on solar collector elements has a very high solar absorbing ability, in the range of 96% to 97% and a low thermal emittance, in the order of 10%, and can be produced with high capacity in industrial scale. A reactive gas in an amount of 1 to 50 cm 3/min kW, preferably 10 cm 3/min kW, distributed in the coating zone provides that the metal layer deposed onto the receiving material partly oxidizes during the deposition, whereby a layer is obtained that comprises a grain mixture of metallic material and metal oxide, whereby 40% to 80%, preferably about 50%, of metallic material is embedded into the metal oxide closest to the receiving material. The metallic material is successively decreased to about zero at the surface of the layer by increasing the addition of oxygen at the end of the coating zone.Type: GrantFiled: March 10, 1999Date of Patent: January 9, 2001Assignee: Sunstrip ABInventor: Göran Hultmark
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Patent number: 6168698Abstract: Power supply lines (41, 42) connect poles of an alternating current power source (43) to respective cathodes (58, 59) in compartments (32, 39), included among a plurality of adjacent compartments (32-39′), which together form a vacuum chamber (31) and which are connected to each other by a passageway (60). The two compartments (32, 39) with the cathodes (58, 59) are separated from each other by intermediate compartments (32′-38′), at least some of which are equipped with additional sputter cathodes (61-66).Type: GrantFiled: October 22, 1996Date of Patent: January 2, 2001Assignee: Balzers und Leybold Deutschland Holding AGInventors: Joachim Szczyrbowski, Götz Teschner, Anton Zmelty
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Patent number: H1933Abstract: System and method for high vacuum sputtering combining magnetron sputtering and pulsed laser plasma deposition are described wherein simultaneous or sequential magnetron sputtering and pulsed laser deposition operations in a single ultra-high vacuum system provides high deposition rates with precise control of film morphology, stoichiometry, microstructure, composition gradient, and uniformity, in the deposition of high performance coatings of various metal, ceramic and diamond-like carbon materials.Type: GrantFiled: April 8, 1996Date of Patent: January 2, 2001Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Jeffrey S. Zabinski, Andrey A. Voevodin, Michael S. Donley