Patents Examined by Jason M Berman
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Patent number: 10060023Abstract: A backing plate for a sputter target includes a target receiving part for receiving a target to be sputtered, and a structure for exposing the target receiving part through the backing plate.Type: GrantFiled: October 19, 2012Date of Patent: August 28, 2018Assignee: Infineon Technologies AGInventors: Markus Fischer, Wolfram Karcher, Barbara Jeansannetas
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Patent number: 9865696Abstract: A deposition technique for forming an oxynitride film is provided. A highly reliable semiconductor element is manufactured with the use of the oxynitride film. The oxynitride film is formed with the use of a sputtering target including an oxynitride containing indium, gallium, and zinc, which is obtained by sintering a mixture of at least one of indium nitride, gallium nitride, and zinc nitride as a raw material and at least one of indium oxide, gallium oxide, and zinc oxide in a nitrogen atmosphere. In this manner, the oxynitride film can contain nitrogen at a necessary concentration. The oxynitride film can be used for a gate, a source electrode, a drain electrode, or the like of a transistor.Type: GrantFiled: November 3, 2014Date of Patent: January 9, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 9856558Abstract: In a plasma enhanced physical vapor deposition of a material onto workpiece, a metal target faces the workpiece across a target-to-workpiece gap less than a diameter of the workpiece. A carrier gas is introduced into the chamber and gas pressure in the chamber is maintained above a threshold pressure at which mean free path is less than 5% of the gap. RF plasma source power from a VHF generator is applied to the target to generate a capacitively coupled plasma at the target, the VHF generator having a frequency exceeding 30 MHz. The plasma is extended across the gap to the workpiece by providing through the workpiece a first VHF ground return path at the frequency of the VHF generator.Type: GrantFiled: March 14, 2008Date of Patent: January 2, 2018Assignee: Applied Materials, Inc.Inventors: Daniel J. Hoffman, Karl M. Brown, Ying Rui, John Pipitone
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Patent number: 9818585Abstract: Methods and apparatus for in-situ plasma cleaning of a deposition chamber are provided. In one embodiment a method for plasma cleaning a deposition chamber without breaking vacuum is provided. The method comprises positioning a substrate on a susceptor disposed in the chamber and circumscribed by an electrically floating deposition ring, depositing a metal film on the substrate and the deposition ring in the chamber, grounding the metal film deposited on the deposition ring without breaking vacuum, and removing contaminants from the chamber with a plasma formed in the chamber without resputtering the metal film on the grounded deposition ring and without breaking vacuum.Type: GrantFiled: May 16, 2014Date of Patent: November 14, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Richard J. Green, Cheng-Hsiung Tsai, Shambhu N. Roy, Puneet Bajaj, David H. Loo
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Patent number: 9809876Abstract: An endblock for a rotatable sputtering target, such as a rotatable magnetron sputtering target, is provided. A sputtering apparatus, including one or more such endblock(s), includes locating the electrical contact(s) (e.g., brush(es)) between the collector and rotor in the endblock(s) in an area under vacuum (as opposed to in an area at atmospheric pressure).Type: GrantFiled: January 13, 2014Date of Patent: November 7, 2017Assignee: Centre Luxembourgeois de Recherches pour le Verre et la Ceramique (C.R.V.C.) SaRLInventors: Gilbert Galan, Jean-Philippe Uselding, Guy Comans, Marcel Schloremberg
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Patent number: 9812303Abstract: Methods and apparatus for a magnetron assembly are provided herein. In some embodiments, a magnetron assembly includes a first base plate; a second base plate movable with respect to the first base plate between a first position and a second position; an outer magnetic pole in the shape of a loop and comprising an outer magnetic pole section coupled to the first base plate and an outer magnetic pole section coupled to the second base plate; and an inner magnetic pole disposed within the outer magnetic pole, wherein the outer and inner magnetic poles define a closed loop magnetic field, and wherein the closed loop magnetic field is maintained when the second base plate is disposed in both the first position and a second position.Type: GrantFiled: February 18, 2014Date of Patent: November 7, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Alan Ritchie, Ryan Hanson, Xianwei Zhao
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Patent number: 9812300Abstract: A silicon target for sputtering film formation which enables formation of a high-quality silicon-containing thin film by inhibiting dust generation during sputtering film formation is provided. An n-type silicon target material 10 and a metallic backing plate 20 are attached to each other via a bonding layer 40. A conductive layer 30 made of a material having a smaller work function than that of the silicon target material 10 is provided on a surface of the silicon target material 10 on the bonding layer 40 side. That is, the silicon target material 10 is attached to the metallic backing plate 20 via the conductive layer 30 and the bonding layer 40. In a case of single-crystal silicon, a work function of n-type silicon is generally 4.05 eV. A work function of a material of the conductive layer 30 needs to be smaller than 4.05 eV.Type: GrantFiled: June 23, 2014Date of Patent: November 7, 2017Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Hiroki Yoshikawa, Yukio Inazuki, Hideo Kaneko
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Patent number: 9803274Abstract: A physical vapor deposition (PVD) chamber, a process kit of a PVD chamber and a method of fabricating a process kit of a PVD chamber are provided. In various embodiments, the PVD chamber includes a sputtering target, a power supply, a process kit, and a substrate support. The sputtering target has a sputtering surface that is in contact with a process region. The power supply is electrically connected to the sputtering target. The process kit has an inner surface at least partially enclosing the process region, and a liner layer disposed on the inner surface. The substrate support has a substrate receiving surface, wherein the liner layer disposed on the inner surface of the process kit has a surface roughness (Rz), and the surface roughness (Rz) is substantially in a range of 50-200 ?m.Type: GrantFiled: November 14, 2013Date of Patent: October 31, 2017Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Shih-Wei Bih, Wei-Jen Chen, Yen-Yu Chen, Hsien-Chieh Hsiao, Chang-Sheng Lee, Wei-Chen Liao, Wei Zhang
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Patent number: 9790589Abstract: Embodiments of the present disclosure provides apparatus and method for stabilizing substrate temperature by flowing a flow of cooling gas to an inlet of cooling channels in a substrate support, receiving the flow of cooling gas from an outlet of the cooling channel using a heat exchanger, and releasing the cooling gas to an immediate environment, such as a cleanroom or a minienvironment.Type: GrantFiled: January 28, 2015Date of Patent: October 17, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Brian West, Michael S. Cox, Jeonghoon Oh
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Patent number: 9771649Abstract: A substrate carrier unit includes a substrate carrier and a phase transition material. The substrate carrier defines an isolated space therein. The phase transition material is filled into the isolated space of the substrate carrier and has a melting point ranging between 18° C. and 95° C. The phase transition material is capable of absorbing thermal energy from the substrate carrier as latent heat to change the phase from solid to liquid.Type: GrantFiled: May 5, 2015Date of Patent: September 26, 2017Assignee: Linco Technology Co., Ltd.Inventors: Chung-Yu Yeh, Huei-Chia Su, Cheng-Peng Yeh, Tsung-Wei Chang, Yi-Yuan Huang, Wan-Yu Huang, Mu-Sen Lu
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Patent number: 9773648Abstract: Embodiments of the present technology may include a method of processing a semiconductor substrate. The method may include providing the semiconductor substrate in a processing region. Additionally, the method may include flowing gas through a cavity defined by a powered electrode. The method may further include applying a negative voltage to the powered electrode. Also, the method may include striking a hollow cathode discharge in the cavity to form hollow cathode discharge effluents from the gas. The hollow cathode discharge effluents may then be flowed to the processing region through a plurality of apertures defined by electrically grounded electrode. The method may then include reacting the hollow cathode discharge effluents with the semiconductor substrate in the processing region.Type: GrantFiled: August 25, 2014Date of Patent: September 26, 2017Assignee: Applied Materials, Inc.Inventors: Tae Seung Cho, Yi-Heng Sen, Soonam Park, Dmitry Lubomirsky
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Patent number: 9765426Abstract: The present invention relates to sputter targets for electrochemical device layer deposition comprising a lithium-containing target material with near-metallic electrical conductivity which includes (a) at least one metal and (b) a lithium-containing material, the lithium-containing material being selected from the group consisting of lithium metal and a lithium-containing salt, wherein the at least one metal and the lithium-containing material are formed into the lithium-containing target material and wherein the lithium-containing target material is configured with a composition sufficient for physical vapor deposition of a lithium-containing electrode of the electrochemical device in a single step, the lithium-containing electrode as deposited requiring no further lithium doping. Furthermore, the composition of the metallic lithium-containing target material may be configured to provide a low enough electrical resistance to permit DC sputtering.Type: GrantFiled: April 22, 2013Date of Patent: September 19, 2017Assignee: Applied Materials, Inc.Inventors: Byung-Sung Leo Kwak, Lizhong Sun, Jan Isidorsson, Chong Jiang
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Patent number: 9761441Abstract: Embodiments relate generally to semiconductor device fabrication and processes, and more particularly, to systems and methods that implement magnetic field generators configured to generate rotating magnetic fields to facilitate physical vapor deposition (“PVD”). In one embodiment, a system generates a first portion of a magnetic field adjacent a first circumferential portion of a substrate, and can generate a second portion of the magnetic field adjacent to a second circumferential portion of the substrate. The second circumferential portion is disposed at an endpoint of a diameter that passes through an axis of rotation to another endpoint of the diameter at which the first circumferential portion resides. The second peak magnitude can be less than the first peak magnitude. The system rotates the first and second portions of the magnetic fields to decompose a target material to form a plasma adjacent the substrate. The system forms a film upon the substrate.Type: GrantFiled: July 6, 2015Date of Patent: September 12, 2017Assignees: SAMSUNG ELECTRONICS CO., LTD., SEMICAT, INC.Inventors: Jeonghee Park, Jae Yeol Park
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Patent number: 9758861Abstract: Embodiments relate to a sputter chamber comprising both a target surface and an anode surface. The sputter chamber has both an ingress and an egress to allow passage of a gas. The sputter chamber further includes a target substrate. A secondary material flexibly changes the composition of the target substrate in-situ by changing coverage of the target by the secondary material. Gas entering the sputter chamber interacts with the changed composition of the target. The interaction discharges a plasma alloy and the alloy condenses on the anode surface in the sputter chamber. The condensed alloy produces an alloy film.Type: GrantFiled: May 27, 2016Date of Patent: September 12, 2017Assignee: International Business Machines CorporationInventors: Hans-Juergen Eickelmann, Thorsten Muehge, Erik Rueger, Markus Schmidt
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Patent number: 9758855Abstract: A method of controlling a reactive deposition process and a corresponding assembly and/or apparatus are described. The method includes providing power to a cathode with a power supply, providing a voltage set point to the power supply, receiving a power value correlating the power provided to the cathode, and controlling a flow of a process gas in dependence of the power value to provide a closed loop control for the power value.Type: GrantFiled: November 30, 2011Date of Patent: September 12, 2017Assignee: APPLIED MATERIALS, INC.Inventors: Thomas Deppisch, Franz-Josef Helle, Manfred Englert, Uwe Hermanns
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Patent number: 9752226Abstract: The present invention provides a manufacturing apparatus which can realize so-called sequential substrate transfer and can improve throughput, even when one multi-layered thin film includes plural layers of the same film type. A manufacturing apparatus according to an embodiment of the present invention includes a transfer chamber, three sputtering deposition chambers each including one sputtering cathode, two sputtering deposition chambers each including two or more sputtering cathodes, and a process chamber for performing a process other than sputtering, and the three sputtering deposition chambers, the two sputtering deposition chambers, and the process chamber are arranged around the transfer chamber so that each is able to perform delivery and receipt of the substrate with the transfer chamber.Type: GrantFiled: December 22, 2016Date of Patent: September 5, 2017Assignee: CANON ANELVA CORPORATIONInventor: Koji Tsunekawa
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Patent number: 9752228Abstract: Target assemblies and PVD chambers including target assemblies are disclosed. The target assembly includes a target that has a concave shaped target. When used in a PVD chamber, the concave target provides more radially uniform deposition on a substrate disposed in the sputtering chamber.Type: GrantFiled: March 12, 2010Date of Patent: September 5, 2017Assignee: Applied Materials, Inc.Inventors: Zhendong Liu, Rongjun Wang, Xianmin Tang, Srinivas Gandikota, Tza-Jing Gung, Muhammad M. Rasheed
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Patent number: 9750120Abstract: The disclosure includes a coaxial microwave applicator for plasma production, including a coaxial tube formed by a central core and an outer conductor separated from the central core by an annular space allowing propagation of microwaves. The applicator includes: a cylindrical permanent magnet disposed at the end of the central core; and at least one annular permanent magnet disposed at the end of the outer conductor, all of the magnets disposed at the end of the coaxial tube having the same direction of magnetization. The magnetization of the magnets forms a magnetic field suitable for generating, in a zone away from the end of the applicator, an electronic cyclotronic resonance coupling with the electric microwave field of the applicator. The external radius and the magnetization of the annular magnet are selected such that the magnetic field lines generated by the magnets pass through the coupling zone in a direction substantially parallel to the axis of the applicator.Type: GrantFiled: July 10, 2013Date of Patent: August 29, 2017Assignees: Universite Joseph Fourier—Grenoble 1Inventors: Ana Lacoste, Jacques Pelletier
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Patent number: 9738967Abstract: A sputtering chamber includes at least two sputtering targets, one of the at least two targets disposed on a first side a substrate conveyor extending within the chamber, and another of the at least two targets disposed on a second side of the conveyor. The at least two targets may be independently operable, and at least one of the targets, if inactivated, may be protected by a shielding apparatus. Both of the at least two targets may be mounted to a first wall of a plurality of walls enclosing the sputtering chamber.Type: GrantFiled: September 25, 2012Date of Patent: August 22, 2017Assignee: CARDINAL CG COMPANYInventors: Dennis M Brabender, Jeffrey L Kokoschke
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Patent number: 9736919Abstract: Provided are an RF power distribution device and an RF power distribution method. The RF power distribution device includes an impedance matching network for transferring power from an RF power source and a power distribution unit for distributing the output power from the impedance matching network to at least one electrode generating capacitively-coupled plasma. The power distribution unit includes a first reactive element connected in series to a first electrode, a variable capacitor having one end connected in parallel to the first reactive element and the first electrode and the other end grounded, and a second reactive element having one end connected to a first node where the one end of the variable capacitor and one end of the first reactance device are in contact with each other and the other end connected to a second node where a second electrode and an output terminal of the impedance matching network are connected.Type: GrantFiled: January 25, 2013Date of Patent: August 15, 2017Assignee: PLASMART, INC.Inventors: Jaehyun Kim, Sang Won Lee, Yong Gwan Lee