Measuring Or Testing (e.g., Of Operating Parameters, Property Of Article, Etc.) Patents (Class 204/192.13)
  • Publication number: 20130313107
    Abstract: When a magnetron is scanned about the back of a target in a selected complex path having radial components, the erosion profile has a form depending upon the selection of paths. A radial erosion rate profile for a given magnetron is measured. Periodically during scanning, an erosion profile is calculated from the measured erosion rate profile, the time the magnetron spends at different radii, and the target power. The calculated erosion profile may be used to indicate when erosion has become excessive at any location prompting target replacement or to adjust the height of the magnetron above the target for repeated scans. In another aspect of the invention, the magnetron height is dynamically adjusted during a scan to compensate for erosion. The compensation may be based on the calculated erosion profile or on feedback control of the present value of the target voltage for a constant-power target supply.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 28, 2013
    Applicant: Applied Materials, Inc.
    Inventors: Keith A. Miller, Daniel C. Lubben
  • Patent number: 8585873
    Abstract: A method of sputtering with sputtering apparatus is for depositing a layer upon a substrate. The apparatus includes a sputter target with a face exposed to the substrate and a magnetron providing a magnetic field that moves relative to the target face. The speed of movement of the field is controlled such that the uniformity of the deposition on the substrate is enhanced. A particular method includes monitoring uniformity verses speed, selecting the speed that gives the preferred uniformity and controlling the field to the selected speed. The selected speed may vary over the life of the target, with increased speeds becoming desirable as the target thins.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: November 19, 2013
    Assignee: Aviza Technology Limited
    Inventors: Mark Ashley Ford, Rajkumar Jakkaraju
  • Patent number: 8524099
    Abstract: Methods for processing events occurring in a process chamber are provided. In one method, an operation includes carrying gas and receiving an optical signal from the process chamber to an analysis tool that operates in response to the optical signal having a signal-to-noise ratio (SNR) for process analysis. And, dividing the carried gas and optical signal into a plurality of separate gas and optical signals between the process chamber and the analysis tool. The dividing is configured through separate apertures so that the apertures collectively maintain the SNR of the optical signal received at the tool. Methods provide a septum in a second bore dividing the second bore into apertures configured to reduce etching of and deposition on the optical access window and to maintain the desired SNR at the diagnostic end point.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: September 3, 2013
    Assignee: Lam Research Corporation
    Inventors: Jeff A. Bogart, Leonard Sharpless, Harmeet Singh
  • Patent number: 8518220
    Abstract: When a magnetron is scanned about the back of a target in a selected complex path having radial components, the erosion profile has a form depending upon the selection of paths. A radial erosion rate profile for a given magnetron is measured. Periodically during scanning, an erosion profile is calculated from the measured erosion rate profile, the time the magnetron spends at different radii, and the target power. The calculated erosion profile may be used to indicate when erosion has become excessive at any location prompting target replacement or to adjust the height of the magnetron above the target for repeated scans. In another aspect of the invention, the magnetron height is dynamically adjusted during a scan to compensate for erosion. The compensation may be based on the calculated erosion profile or on feedback control of the present value of the target voltage for a constant-power target supply.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 27, 2013
    Assignee: Applied Materials, Inc.
    Inventors: Keith A. Miller, Daniel C. Lubben
  • Patent number: 8500962
    Abstract: A method for substrate processing includes producing a magnetic field by a magnetron across the full width of a sputtering surface of a target in a first direction. The magnetron can produce two erosion grooves separated by a distance S on the sputtering surface. The method includes moving the magnetron continuously at a first speed by the distance S in a first segment along a linear travel path. The linear travel path is along a second direction perpendicular to the first direction. The method includes continuously sputtering a material off the sputtering surface and depositing the material on the substrate during the first segment, and moving the magnetron by the distance S in a second segment along the linear travel path at a second speed higher than the first speed without sputtering the material off the sputtering surface or sputtering materials off at significant lower rate.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: August 6, 2013
    Assignee: Ascentool Inc
    Inventors: George X. Guo, Kai-an Wang
  • Patent number: 8500966
    Abstract: A nanolayered coated cutting tool that includes a substrate that has a surface with a coating on the surface thereof. The coating comprises a plurality of coating sets of alternating nanolayers of titanium nitride and titanium aluminum nitride wherein each coating set has a thickness up to about 100 nanometers. The coating includes a bonding region and an outer region. The bonding region comprises a plurality of the coating sets wherein the thickness of each coating set increases as the set moves away from the surface of the substrate. The outer region comprises a plurality of the coating sets wherein the thickness of each coating set is about equal.
    Type: Grant
    Filed: April 4, 2005
    Date of Patent: August 6, 2013
    Assignee: Kennametal Inc.
    Inventors: Ronald M. Penich, Parag L. Hegde, Aharon Inspektor
  • Publication number: 20130168233
    Abstract: Apparatus and methods for the heteroepitaxial growth of multilayered structures using an integrated magnetron sputtering and PLD with continuous, in situ, real-time RHEED imaging are provided. The apparatus for carrying out the methods are equipped with a magnetron sputtering system, a PLD system and a RHEED system associated with a single vacuum chamber.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 4, 2013
    Inventors: Chang-Beom Eom, Chad M. Folkman
  • Patent number: 8470142
    Abstract: A sputtering apparatus for depositing a target material on a substrate includes a chamber, a target in the chamber to provide the target material, a carrier to carry the substrate in the chamber to face the target, and a plurality of masks arranged along sides of the carrier and being movable back and forth with respect to the carrier.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: June 25, 2013
    Assignees: LG Display Co., Ltd., AVACO Co., Ltd., LG Electronics, Inc.
    Inventors: Sung Eun Kim, Tae Hyun Lim, Hwan Kyu Yoo, Kwang Jong Yoo, Yang Sik Moon, Byeong Cheol An
  • Patent number: 8460522
    Abstract: A plurality of targets are disposed in parallel with, and at a given distance to, one another. In case a predetermined thin film is formed by sputtering, the occurrence of non-uniformity in the film thickness distribution and the film quality distribution can be restricted. During the time when electric power is charged to a plurality of targets (31a to 31h) which are disposed inside a sputtering chamber (11a) so as to lie opposite to the process substrate (S), and are disposed at a predetermined distance from, and in parallel with, one another, thereby forming a predetermined thin film by sputtering, each of the targets is reciprocated at a constant speed in parallel with the process substrate. Also, magnet assemblies that form tunnel-shaped magnetic flux (M) in front of each target are reciprocated at a constant speed in parallel with each of the targets.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: June 11, 2013
    Assignee: ULVAC, Inc.
    Inventors: Yuichi Oishi, Takashi Komatsu, Junya Kiyota, Makoto Arai
  • Publication number: 20130143063
    Abstract: The device housing includes a substrate having a bonding layer, a hard layer, and a color layer formed thereon, and in that order. The bonding layer is made of metal. The hard layer substantially consists of elemental Cr and elemental C. The color layer substantially consists of elemental Cr, elemental O, and elemental N. The atomic ratio of the elemental Cr, elemental O, and elemental N within the color layer is about (0.8-1.0):(1.2-1.5):(0.3-0.5). The color layer provides a bright blue color for the device housing. A method for making the device housing is also described.
    Type: Application
    Filed: May 18, 2012
    Publication date: June 6, 2013
    Applicants: FIH (HONG KONG) LIMITED, SHENZHEN FUTAIHONG PRECISION INDUSTRY CO., LTD.
    Inventors: DA-HUA CAO, XU LIU
  • Patent number: 8435389
    Abstract: An apparatus for generating sputtering of a target to produce a coating on a substrate with a current density on a cathode of a magnetron between 0.1 and 10 A/cm2 is provided. The apparatus comprises a power supply that is operably connected to the magnetron and at least one capacitor is operably connected to the power supply. A first switch is also provided. The first switch operably connects the power supply to the magnetron to charge the magnetron and the first switch is configured to charge the magnetron according to a first pulse. An electrical bias device is operably connected to the substrate and configured to apply a substrate bias.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: May 7, 2013
    Assignee: OC Oerlikon Balzers AG
    Inventors: Stanislav Kadlec, Jürgen Weichart
  • Publication number: 20130105298
    Abstract: A sputtering apparatus according to one embodiment of the present invention includes a substrate holder, a cathode unit arranged at a position diagonally opposite to the substrate holder, a position sensor for detecting a rotational position of the substrate, and a holder rotation controller for adjusting a rotation speed of the substrate according to the detected rotational position. The holder rotation controller controls the rotation speed so that the rotation speed of the substrate when the cathode unit is located on a side in a first direction as an extending direction of a process target surface of the relief structure is lower than the rotation speed of the substrate when the cathode unit is located on a side in a second direction which is perpendicular to the first direction along the rotation of the substrate.
    Type: Application
    Filed: December 11, 2012
    Publication date: May 2, 2013
    Applicant: CANON ANELVA CORPORATION
    Inventor: Canon Anelva Corporation
  • Patent number: 8419911
    Abstract: A deposition apparatus includes a processing chamber internally having a reduced-pressure space for deposition process to be carried out therein, a base material holding member for holding a base material to be subjected to the deposition process, a target support member for supporting a target thereon, and a power supply unit for applying electric power to the target support member to generate a plasma in the reduced-pressure space. In the deposition apparatus, deposition process is carried out by using the target, which has a recess portion in its surface and in which a powder target formed of a powder material is placed in an inner surface of the recess portion. Thus, the in-plane uniformity of deposition rate is improved and a stable film deposition is fulfilled.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: April 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Hideki Yamashita, Takafumi Okuma, Hiroshi Hayata, Hitoshi Yamanishi, Tadashi Kimura, Hirokazu Nakaue
  • Patent number: 8395078
    Abstract: A system and method for managing power delivered to a processing chamber is described. In one embodiment current is drawn away from the plasma processing chamber while initiating an application of power to the plasma processing chamber during an initial period of time, the amount of current being drawn away decreasing during the initial period of time so as to increase the amount of power applied to the plasma processing chamber during the initial period of time.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: March 12, 2013
    Assignee: Advanced Energy Industries, Inc
    Inventor: Milan Ilic
  • Patent number: 8357266
    Abstract: A method and system for conditioning a vapor deposition target is described. In one illustrative embodiment, a vapor deposition system is operated in which a vapor deposition target is used, the occurrence of electrical arcs in the vapor deposition system is detected, and the vapor deposition target is conditioned by adjusting an output current of a power supply that powers the vapor deposition system and adjusting an interval during which energy is delivered to each arc to deliver substantially the same energy to each arc. In some embodiments, the energy delivered to each arc is approximately equal to the maximum energy that the vapor deposition target can withstand without being damaged. The described method and system significantly reduces the time required to remove impurities from a target and does not require the venting of the vacuum chamber or the removal of the target from the chamber.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: January 22, 2013
    Assignee: Advanced Energy Industries, Inc.
    Inventors: Milan Ilic, Robert B. Huff, George W. McDonough
  • Publication number: 20120279851
    Abstract: A method of magnetron sputtering, comprises rotating a magnet of a magnetron with an angular frequency ?, and, during sputtering of material from a source of the magnetron onto a substrate, periodically modulating a power level applied to the source with at least a component comprising a frequency f which is a harmonic of the angular frequency ? of rotation of the magnet other than the first harmonic.
    Type: Application
    Filed: July 18, 2012
    Publication date: November 8, 2012
    Applicant: OC OERLIKON BALZERS AG
    Inventors: Stanislav Kadlec, Frantisek Balon, Juergen Weichart, Bart Scholte van Mast
  • Patent number: 8276648
    Abstract: A method for forming a tube-based detector for signaling when a PVD target is reduced to a predetermined quantity of the PVD target material includes providing a mold member having an inner molding member and an outer molding member defining a space therebetween, melting a desired tube material, injecting the molten tube material into the space between the inner molding member and the outer molding member, cooling the molten tube material, removing the tube from the mold member after the molten tube material has cooled and solidified into a tube, embedding the tube in the physical vapor deposition target, wherein the tube forms an enclosure of the tube-based detector.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: October 2, 2012
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yi-Li Hsiao, Chen-Hua Yu, Jean Wang, Lawrance Sheu
  • Patent number: 8262869
    Abstract: Work piece processing is performed by pulsed discharges between an anode (2) and a magnetron sputtering cathode (1) in solid-gas plasmas using a chamber (2) containing the work piece (7). A system (12) maintains a vacuum in the chamber and another system (14) provides sputtering and reactive gases. The pulses are produced in a plasma pulser circuit including the anode and the cathode, the discharges creating gas and partially ionized solid plasma blobs (3) moving or spreading from a region at a surface of the cathode towards the work piece and the anode. A potential is applied to the work piece so that a pulsed current comprising biasing pulses arises between the second electrodes. In particular biasing discharges are produced between the anode and the work piece when said plasma blobs have spread to regions at the anode and at the work piece so that the pulsed current is the current of these biasing discharges.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: September 11, 2012
    Assignee: Chemfilt Ionsputtering Aktiebolag
    Inventor: Vladimir Kouznetsov
  • Patent number: 8246794
    Abstract: A method of magnetron sputtering, comprises rotating a magnet of a magnetron with an angular frequency ?, and, during sputtering of material from a source of the magnetron onto a substrate, periodically modulating a power level applied to the source with at least a component comprising a frequency f which is a harmonic of the angular frequency ? of rotation of the magnet other than the first harmonic.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: August 21, 2012
    Assignee: OC Oerlikon Blazers AG
    Inventors: Stanislav Kadlec, Frantisek Balon, Juergen Weichart, Bart Scholte van Mast
  • Publication number: 20120193219
    Abstract: A method for determining process-specific data of a vacuum deposition process, in which a substrate is coated in a vacuum chamber by a material detached from a target connected to a magnetron, an optical emission spectrum being recorded and process-significant data of the vacuum deposition process being determined therefrom for further processing in measurement or regulating processes, is optimized to minimize errors in the determination of process-significant data. At least three intensities of spectral lines of at least two process materials are determined from the optical emission spectrum. From these, single and multiple intensities are mathematically correlated with and to one another and a process-significant datum, which is used in subsequent measurement or regulating processes, is determined from the relation results by a further mathematical relation.
    Type: Application
    Filed: January 5, 2012
    Publication date: August 2, 2012
    Applicant: VON ARDENNE ANLAGENTECHNIK GMBH
    Inventor: Volker LINSS
  • Patent number: 8226802
    Abstract: A technology which is capable of an accurate measurement of the film thickness even if an exfoliation occurs is provided. A difference frequency ?f0 is calculated from a resonance frequency f0 of a film thickness sensor at a current time a0 and a resonance frequency f1 at an immediate past time a1, and whether the exfoliation has occurred or not is detected from its sign and a comparison result relative to a reference value. When the exfoliation has occurred, a corrected film thickness value T? is obtained by adding the thickness ?t0 of the exfoliation film to an increased film thickness value T which is determined from a resonance frequency fx measured at a future time ax to be converted to the thickness of a film on a film forming object, and whether the formation of the film should be terminated is judged in comparison to an aimed value.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: July 24, 2012
    Assignee: ULVAC, Inc.
    Inventors: Masato Fukao, Toru Kimura
  • Publication number: 20120138452
    Abstract: A method and apparatus for achieving very high deposition rate magnetron sputtering wherein the surface of a target and especially the race track zone area of the target, in one embodiment may be heated to such a degree that the target material approaches the melting point and sublimation sets in. Controlled heating is achieved primarily through the monitoring of the temperature of the target material and with the aid of a processor subsequently controlling the target temperature by adjustment of the power being inputted to the target. This controlled heating to the sublimation point is particularly effecting in high deposition rate metal coating of parts when used in conjunction with HIPIMS deposition.
    Type: Application
    Filed: April 13, 2010
    Publication date: June 7, 2012
    Applicant: The Regents of the University of California
    Inventor: Andre Anders
  • Publication number: 20120132518
    Abstract: When a magnetron is scanned about the back of a target in a selected complex path having radial components, the erosion profile has a form depending upon the selection of paths. A radial erosion rate profile for a given magnetron is measured. Periodically during scanning, an erosion profile is calculated from the measured erosion rate profile, the time the magnetron spends at different radii, and the target power. The calculated erosion profile may be used to indicate when erosion has become excessive at any location prompting target replacement or to adjust the height of the magnetron above the target for repeated scans. In another aspect of the invention, the magnetron height is dynamically adjusted during a scan to compensate for erosion. The compensation may be based on the calculated erosion profile or on feedback control of the present value of the target voltage for a constant-power target supply.
    Type: Application
    Filed: February 7, 2012
    Publication date: May 31, 2012
    Applicant: Applied Materials, Inc.
    Inventors: Keith A. Miller, Daniel C. Lubben
  • Patent number: 8163140
    Abstract: The present invention provides a method for reactive sputtering in which a reactive sputtering apparatus including a sputtering vaporization source 2 provided with a metal target disposed in a vacuum chamber 1, a sputtering power source 4 to drive the sputtering vaporization source 2, and an introduction mechanism 5 to introduce an inert gas for sputtering and a reaction gas for forming a compound with sputtered metal into the vacuum chamber 1 is used, and reactive sputtering film formation is performed on a substrate 3 disposed in the above-described vacuum chamber, wherein the method includes the steps of performing constant-voltage control to control the voltage of the above-described sputtering power source 4 at a target voltage Vs and, in addition, performing target voltage control at a control speed lower than the speed of the above-described constant-voltage control, the target voltage control operating the above-described target voltage Vs in order that the spectrum of plasma emission generated forwar
    Type: Grant
    Filed: May 26, 2003
    Date of Patent: April 24, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Yoshimitsu Ikari, Hiroshi Tamagaki, Toshimitsu Kohara
  • Patent number: 8133359
    Abstract: An apparatus and methods for plasma-based sputtering deposition using a direct current power supply is disclosed. In one embodiment, a plasma is generated by connecting a plurality of electrodes to a supply of current, and a polarity of voltage applied to each of a plurality of electrodes in the processing chamber is periodically reversed so that at least one of the electrodes sputters material on to the substrate. And an amount of power that is applied to at least one of the plurality of electrodes is modulated so as to deposit the material on the stationary substrate with a desired characteristic. In some embodiments, the substrate is statically disposed in the chamber during processing. And many embodiments utilize feedback indicative of the state of the deposition to modulate the amount of power applied to one or more electrodes.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: March 13, 2012
    Assignee: Advanced Energy Industries, Inc.
    Inventors: Ken Nauman, Hendrik V. Walde, David J. Christie, Bruce Fries
  • Patent number: 8133360
    Abstract: When a magnetron is scanned about the back of a target in a selected complex path having radial components, the erosion profile has a form depending upon the selection of paths. A radial erosion rate profile for a given magnetron is measured. Periodically during scanning, an erosion profile is calculated from the measured erosion rate profile, the time the magnetron spends at different radii, and the target power. The calculated erosion profile may be used to indicate when erosion has become excessive at any location prompting target replacement or to adjust the height of the magnetron above the target for repeated scans. In another aspect of the invention, the magnetron height is dynamically adjusted during a scan to compensate for erosion. The compensation may be based on the calculated erosion profile or on feedback control of the present value of the target voltage for a constant-power target supply.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 13, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Keith A. Miller, Daniel C. Lubben
  • Patent number: 8133361
    Abstract: A method and system for depositing a thin film on a substrate. In the system a target material is deposited and reacted on a substrate surface to form a substantially non-absorbing thin film. The volume of non-absorbing thin film formed per unit of time may be increased by increasing the area of the surface by a factor of “x” and increasing the rate of deposition of the target material by a factor greater than the inverse of the factor “x” to thereby increase the rate of formation of the volume of non-absorbing thin film per unit of time.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: March 13, 2012
    Assignee: Deposition Sciences, Inc.
    Inventors: Norman L. Boling, Miles Rains, Howard Robert Gray
  • Publication number: 20120048726
    Abstract: A sputtering cathode is generally provided. The sputtering cathode can include a semiconducting target (e.g., a cadmium sulfide target, a cadmium tin oxide target, etc.) defining a sputtering surface and a back surface opposite to the sputtering surface. A backing plate can be positioned facing the back surface of the target and non-bonded to the back surface of the target. A non-bonding attachment mechanism can removably hold the target within the sputtering cathode such that the back surface is facing the backing plate during sputtering.
    Type: Application
    Filed: September 28, 2010
    Publication date: March 1, 2012
    Applicant: PRIMESTAR SOLAR, INC.
    Inventors: Russell Weldon Black, Robert Dwayne Gossman, Patrick Lynch O'Keefe, Scott Daniel Feldman-Peabody
  • Patent number: 8118982
    Abstract: A method and apparatus for physical vapor deposition of films on a substrate is provided. The apparatus comprises a series of connected sputtering chambers through which a substrate passes to undergo sequential deposition processes. The chambers have passages through which the substrates move, and through which process gases may leak. Target gas flows to each chamber are established by operating each chamber while adjacent chambers are idle, measuring the extent of gas communication between the chambers, and reducing the flows by an amount based on the extent of gas leakage.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: February 21, 2012
    Assignee: Applied Materials, Inc.
    Inventor: Philip A. Greene
  • Patent number: 8118981
    Abstract: The present invention provides a multi-target sputtering apparatus including an increased number of targets which can be sputtered simultaneously, and a method for controlling the sputtering apparatus. In one embodiment of the present invention, first and second shutter plates are provided between a substrate and target electrodes and paths between intended targets and the substrate are shut off by the shutter plates to perform a pre-sputtering step. In addition, the first and second shutter plates are rotated as appropriate at the time of transition to a full-scale sputtering step, so as to overlap through-holes provided in the shutter plates, thereby opening up paths between the intended targets and the substrate. Then, a full-scale sputtering step is performed.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: February 21, 2012
    Assignee: Canon Anelva Corporation
    Inventor: Koji Tsunekawa
  • Patent number: 8114256
    Abstract: A control system and method for controlling two motors determining the azimuthal and circumferential position of a magnetron rotating about the central axis of the sputter chamber in back of its target sputtering and capable of a nearly arbitrary scan path, e.g., with a planetary gear mechanism. A system controller periodically sends commands to the motion controller which closely controls the motors. Each command includes a command ticket, which may be one of several values. The motion controller accepts only commands having a command ticket of a different value from the immediately preceding command. One command selects a scan profile stored in the motion controller, which calculates motor signals from the selected profile. Another command instructs a dynamic homing command which interrogates sensors of the position of two rotating arms to determine if the arms in the expected positions. If not, the arms are rehomed.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: February 14, 2012
    Assignee: Applied Materials, Inc.
    Inventors: Yu Chang, William Kuang, Ronald D Dedore, Jitendra R. Bhimjiyani, Wesley W Zhang
  • Publication number: 20120031748
    Abstract: The present invention provides a film forming apparatus and a film forming method which are unlikely to be affected by changes in size and shape of a shield board caused by a recovery process. A film forming apparatus includes a shield board surrounding a sputtering space between a process-target substrate on a stage and a target facing each other in a vacuum chamber, and forms a film on the process-target substrate by causing at least one kind of reactive gas and a film forming material to react with each other. The film forming apparatus is configured to control a ratio of the flow rate of the gas to be introduced into the sputtering space to the flow rate of the gas to be introduced into a space between an inner wall of the vacuum chamber and the shield board, based on a pressure value of the sputtering space measured by pressure detection means.
    Type: Application
    Filed: August 4, 2011
    Publication date: February 9, 2012
    Applicant: CANON ANELVA CORPORATION
    Inventor: Shigenori Ishihara
  • Patent number: 8105467
    Abstract: Provided is a sputtering target for forming a phosphor film in an electroluminescence element, which can maintain high strength even when it is allowed to stand in the atmosphere for a long time. The target has a chemical composition of Al: 20 to 50 mass %, Eu: 1 to 10 mass %, and the remainder containing Ba and inevitable impurities, and has a structure wherein Ba in which Eu is solid-solubilized and Al form an intermetallic compound phase, wherein the intermetallic compound phase of Ba in which Eu is solid-solubilized and Al includes a BaAl4 intermetallic compound phase and a Ba7Al13 intermetallic compound phase, and Eu forms a solid solution with Ba in the BaAl4 intermetallic compound and in the Ba7Al13 intermetallic compound, respectively.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: January 31, 2012
    Assignee: Mitsubishi Materials Corporation
    Inventors: Shoubin Zhang, Shozo Komiyama, Akifumi Mishima
  • Patent number: 8105466
    Abstract: A biased pulse DC reactor for sputtering of oxide films is presented. The biased pulse DC reactor couples pulsed DC at a particular frequency to the target through a filter which filters out the effects of a bias power applied to the substrate, protecting the pulsed DC power supply. Films deposited utilizing the reactor have controllable material properties such as the index of refraction. Optical components such as waveguide amplifiers and multiplexers can be fabricated using processes performed on a reactor according to the present invention.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: January 31, 2012
    Assignee: SpringWorks, LLC
    Inventors: Hongmei Zhang, Mukundan Narasimhan, Ravi B. Mullapudi, Richard E. Demaray
  • Patent number: 8092931
    Abstract: A protection layer containing carbon as a major component is deposited by plasma CVD. The protection layer has film quality such that, when a spectrum is obtained by excluding photoluminescence from a Raman spectrum in a wavenumber band from 900 cm?1 to 1800 cm?1 obtained by exciting the protection layer with an argon ion laser beam having a wavelength of 514.5 nm and the spectrum is subjected to waveform separation by the Gaussian function to split a D peak appearing around 1350 cm?1 and a G peak appearing around 1520 cm?1, the ratio Dw/Gw between a half width Dw of the D peak and a half width Gw of the G peak exceeds 0 and is not greater than 2.7.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: January 10, 2012
    Assignee: WD Media (Singapore) Pte. Ltd.
    Inventors: Masafumi Ishiyama, Kenji Ayama
  • Patent number: 8089026
    Abstract: Methods and apparatus for controlling a plasma used for materials processing feature cooperative action of a resonant circuit and a switch unit coupled to a plasma vessel and a power supply. A sensor for acquiring a signal associated with a state of a plasma in the plasma vessel supports closed-loop control of the switch unit. Undesirable plasma states detected by the sensor can be eliminated by closing the switch unit to shunt the resonant circuit.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: January 3, 2012
    Assignee: MKS Instruments, Inc.
    Inventor: Jeff C Sellers
  • Patent number: 8070917
    Abstract: A reactive sputtering method for application of a bias voltage to a supporting substrate in formation of a film of a metal compound on the supporting substrate according to a bias sputtering method; wherein a supporting substrate conveyor unit and a cathode that includes a target facing the supporting substrate conveyor unit are provided; the supporting substrate is conveyed between the supporting substrate conveyor unit and the target for formation of a film of a metal compound on the supporting substrate; magnets are provided adjacent to the supporting substrate conveyor unit on a side thereof opposite to that of the supporting substrate, such that a magnetic field is closed and a continuing tunnel part of parallel or nearly parallel arched magnetic force lines forms an oval or a polygon on the supporting substrate, the magnets each having a first magnetic pole of an S pole or an N pole and a second magnetic pole opposite to the first magnetic pole, the second magnetic pole surrounding the first magnetic po
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: December 6, 2011
    Assignee: Fujifilm Corporation
    Inventor: Naoki Tsukamoto
  • Patent number: 8057648
    Abstract: A deposition system and its method of control cancels the influence of noise occurring during measuring of a deposition rate using a noise canceller in order to exactly control the deposition rate, and obtains a film of a desired thickness. The deposition system includes a deposition device. A deposition rate sensor measures a deposition rate of the deposition device. A noise canceller cancels a noise component of the measured deposition rate. A power supply unit adjusts power supplied to the deposition device according to an output of the noise canceller.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: November 15, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Min-Jeong Hwang
  • Patent number: 8043481
    Abstract: A sputtering method deposits a film on a substrate by controlling a magnetic field parallel to a surface of a target so that the magnetic field at a part of the target, other than parts of the target which are sputtered during a deposition mode in which a deposition process is performed with respect to the substrate, has an intensity lower than an arbitrary intensity at the other parts during the deposition mode and has an intensity higher than or equal to the arbitrary intensity during a standby mode in which the deposition process is not performed. A redeposited film which is deposited on the part of the target during the deposition mode is removed by performing a sputtering during the standby mode.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: October 25, 2011
    Assignee: Showa Denko K.K.
    Inventors: Yasutake Takamatsu, Katsunori Takahashi, Shin-ichiro Matsuo
  • Patent number: 8043483
    Abstract: To provide a sputtering apparatus that enables oblique film forming by arranging a target and a substrate so as to allow sputtered particles emitted from the target to obliquely enter the substrate selectively, and can form a magnetic film having high uniaxial magnetic anisotropy uniformly and compactly. A sputtering apparatus includes a cathode having a sputtering target supporting surface, the cathode being provided with a rotation axis about which the sputtering target supporting surface rotates, and a stage having a substrate supporting surface, the stage being provided with a rotation axis about which the substrate supporting surface rotates, and the sputtering apparatus is constituted such that the sputtering target supporting surface and the substrate supporting surface face to each other, and are rotatable independently about respective rotation axes.
    Type: Grant
    Filed: January 8, 2010
    Date of Patent: October 25, 2011
    Assignee: Canon Anelva Corporation
    Inventors: Tetsuya Endo, Einstein Noel Abarra
  • Patent number: 8007641
    Abstract: An arc discharge detection device is used for detecting arc discharges in a plasma process. The arc discharge detection device includes a comparator to which an instantaneous signal and a reference value are supplied. The reference value is formed by a setting means from an extreme value of the signal. The extreme value is determined by an extreme value detection device within a predetermined time period, and the comparator changes the state of an arc discharge detection signal when the comparison between the reference value and an instantaneous value of the signal shows that an arc discharge has occurred.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: August 30, 2011
    Assignee: HUETTINGER Elektronik GmbH + Co. KG
    Inventors: Markus Winterhalter, Peter Wiedemuth
  • Patent number: 7988833
    Abstract: A system and method for detecting the potential of non-cathode arcing in a plasma generation apparatus, such as a physical vapor deposition chamber. The system and method involve computing a statistical parameter of cathode-arcing event data in the chamber and performing a pattern recognition technique to a moving average of the statistical parameter.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: August 2, 2011
    Assignee: Schneider Electric USA, Inc.
    Inventor: Alan F. Krauss
  • Patent number: 7988835
    Abstract: There are provided a method and an apparatus which form silicon dots having substantially uniform particle diameters and exhibiting a substantially uniform density distribution directly on a substrate at a low temperature. A hydrogen gas (or a hydrogen gas and a silane-containing gas) is supplied into a vacuum chamber (1) provided with a silicon sputter target (e.g., target 30), or the hydrogen gas and the silane-containing gas are supplied into the chamber (1) without arranging the silicon sputter target therein, a high-frequency power is applied to the gas(es) so that plasma is generated such that a ratio (Si(288 nm)/H?) between an emission intensity Si(288 nm) of silicon atoms at a wavelength of 288 nm and an emission intensity H? of hydrogen atoms at a wavelength of 484 nm in plasma emission is 10.0 or lower, and preferably 3.0 or lower, or 0.
    Type: Grant
    Filed: September 12, 2006
    Date of Patent: August 2, 2011
    Assignees: Nissin Electric Co., Ltd., EMD Corporation
    Inventors: Eiji Takahashi, Takashi Mikami, Shigeaki Kishida, Kenji Kato, Atsushi Tomyo, Tsukasa Hayashi, Kiyoshi Ogata, Yuichi Setsuhara
  • Patent number: 7981257
    Abstract: An apparatus and technique are provided for generating a plasma using a power supply circuit and arc detection arrangement. The power supply circuit has a cathode enclosed in a chamber, and is adapted to generate a power-related parameter. The arc detection arrangement is communicatively coupled to the power supply circuit and adapted to assess the severity of arcing in the chamber by comparing the power-related parameter to at least one threshold. According to various implementations, arc occurrences, arcing duration, intensity and/or energy are measured responsive to comparing the power-related parameter to the at least one threshold. According to further implementations, the above-mentioned measured quantities are accumulated and/or further processed. An apparatus and method are also provided for detecting arc events when the current spikes above a threshold level.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: July 19, 2011
    Assignee: Schneider Electric USA, Inc.
    Inventors: Alan F. Krauss, Raymond W. Harris, Paul R. Buda
  • Publication number: 20110168545
    Abstract: Provided is a sputtering apparatus which can form a multilayer film giving high productivity and with less spiral pattern by effective use of targets, and a method of forming multilayer film using the apparatus. An embodiment is a multilayer-film sputtering apparatus comprising: a rotatable cathode unit (30) having cathodes (7a and 7b) arranged on the same circumference with respect to the rotational center, and having a power-supply mechanism for supplying power to each cathode; a sensor (14) for detecting the position of cathode; and a rotation mechanism for rotating the cathode unit (30).
    Type: Application
    Filed: February 16, 2011
    Publication date: July 14, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventor: Masahiro Shibamoto
  • Patent number: 7972483
    Abstract: A method for material processing utilizing a material processing system to perform a process. The method performs a process (510), measures a scan of data (520), and transforms the data scan (530) into a signature (540) including at least one spatial component. The scan of data (530) can include a process performance parameter such as an etch rate, an etch selectivity, a deposition rate, a film property, etc. The signature (540) can be stored (550), and compared with either a previously acquired signature or with an ideal signature (560). If at least one spatial component substantially deviates from the reference spatial component, then a process fault has potentially occurred. If the cumulative deviation of all spatial components or a select group of components substantially deviates from a reference set of spatial components, then a process fault has potentially occurred.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: July 5, 2011
    Assignee: Tokyo Electron Limited
    Inventors: John Donohue, Hongyu Yue
  • Patent number: 7967957
    Abstract: For forming alumina films on substrates by sputtering of an aluminum metal target in an oxidizing gas-containing atmosphere, a method of producing ? crystal structure-based alumina films efficiently includes as an early film formation, forming films under conditions suited for formation of ? crystal structure alumina. For example the forming forms films of ?crystal structure alumina in a poisoning mode discharge condition only in an early stage of film formation.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: June 28, 2011
    Assignee: Kobe Steel, Ltd.
    Inventors: Toshimitsu Kohara, Hiroshi Tamagaki, Yoshimitsu Ikari
  • Publication number: 20110139246
    Abstract: Methods of depositing a transparent conductive oxide layer on a substrate are generally disclosed. A shield of greater than about 75% by weight molybdenum can be attached to a first surface of a substrate such that the shield contacts at least about 75% of the first surface. The shield can then be heated via an energy source to cause thermal exchange from the shield to the substrate to heat the substrate to a sputtering temperature. A transparent conductive oxide layer can then be sputtered on a second surface of the substrate at the sputtering temperature. Methods are also generally disclosed for manufacturing a cadmium telluride based thin film photovoltaic device.
    Type: Application
    Filed: December 16, 2009
    Publication date: June 16, 2011
    Applicant: PRIMESTAR SOLAR, INC.
    Inventor: JENNIFER A. DRAYTON
  • Patent number: 7955480
    Abstract: The present invention provides a sputtering apparatus and a film deposition method capable of forming a magnetic film with reduced variations in the direction of magnetic anisotropy. The sputtering apparatus of the present invention is provided with a rotatable cathode (802), a rotatable stage (801) and a rotatable shielding plate (805). The sputtering apparatus controls the rotation of at least one of the cathode (802), stage (801) and shielding plate (805) so that sputtered particles impinging at an angle formed with respect to a normal line of the substrate (804) of 0° or more and 50° or less out of sputtered particles generated from the target (803a) during sputtering are made to impinge on the substrate (804).
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: June 7, 2011
    Assignee: Canon Anelva Corporation
    Inventors: Tetsuya Endo, Einstein Noel Abarra
  • Patent number: 7929261
    Abstract: For suppressing arc discharges in a plasma process, a method includes monitoring of at least one parameter of the plasma process, determining a temporal feature of a first countermeasure and performing the first countermeasure. The temporal feature is determined as a function of, for example, at least one of an interval in time from at least one previous countermeasure, a development of the at least one parameter since a relevant time of introduction of the countermeasure, or since a variable period of time ahead of the relevant time of introduction of the countermeasure, and a differentiation as to whether a previous countermeasure was triggered based on the behavior of the at least one parameter, or based on the interval in time from at least one previous countermeasure.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: April 19, 2011
    Assignee: HUETTINGER Elektronik GmbH + Co. KG
    Inventor: Peter Wiedemuth