Patents Assigned to Applied Material
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Patent number: 7506654Abstract: A method and apparatus that reduces the time required to clean a processing chamber employing a reactive plasma cleaning process. A plasma is formed in an Astron fluorine source generator from a flow of substantially pure inert-source gas. After formation of the plasma, a flow of a fluorine source gas is introduced therein such that the fluorine source flow accelerates at a rate no greater than 1.67 standard cubic centimeters per second2 (scc/s2). In this fashion, the plasma contains a plurality of radicals and dissociated inert-source gas atoms, defining a cleaning mixture. The ratio of inert-source gas to fluorine source is greater than 1:1.Type: GrantFiled: October 18, 2004Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Shankar N. Chandran, Scott Hendrickson, Gwendolyn D. Jones, Shankar Venkataraman, Ellie Yieh
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Patent number: 7506752Abstract: According to a first aspect, a first conveyor system is provided that is adapted to deliver substrate carriers within a semiconductor device manufacturing facility. The first conveyor system includes a ribbon that forms a closed loop along at least a portion of the semiconductor device manufacturing facility. The ribbon is adapted to (1) be flexible in a horizontal plane and rigid in a vertical plane; and (2) transport a plurality of substrate carriers within at least a portion of the semiconductor device manufacturing facility. Numerous other aspects are provided, as are systems, methods and computer program products in accordance with these and other aspects.Type: GrantFiled: July 28, 2006Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Michael R. Rice, Robert B. Lowrance, Martin R. Elliott, Jeffrey C. Hudgens, Eric A. Englhardt
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Patent number: 7507296Abstract: In a scrubber adapted to clean a semiconductor wafer, the torque of a brush rotation motor is monitored while a scrubber brush is in contact with the wafer and is being rotated by the motor. The position of the brush relative to the wafer may be adjusted based on the monitored torque to regulate the pressure applied to the wafer by the brush. Open loop positioning or closed loop control may be employed.Type: GrantFiled: June 1, 2007Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Michael N. Sugarman, Vladimir Galburt
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Patent number: 7509516Abstract: A method involving: distributing two clock signals over a clock signal distribution system; in each of a plurality local clocking regions located along the signal distribution system, detecting the two clock signals and generating therefrom a local clock signal for that local clocking region, wherein the generated local clock signals for at least some of the plurality of local clocking regions are in a first group all of which are aligned in phase with each other and the generated local clock signals for the remainder of the plurality of local clocking regions are in a second group all of which are aligned in phase with each other, and wherein the phase of the first group is out of phase with the phase of the second group by a predetermined amount; and bringing all of the clock signals for the plurality of local clocking regions into phase alignment so that the phase of the first group is in phase with the phase of the second group.Type: GrantFiled: April 3, 2006Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Vladimir Prodanov, Mihai Banu
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Patent number: 7507660Abstract: In one embodiment, a method for forming a barrier material on a substrate is provided which includes exposing a dielectric layer on the substrate to a plasma during a preclean process, wherein the dielectric layer contains a feature having sidewalls and a bottom surface, and depositing a tungsten-containing barrier material containing tungsten nitride on the sidewalls and the bottom surface of the feature during a cyclic layer deposition process. The method further provides depositing a metal-containing seed layer on the tungsten-containing barrier material and depositing a metal-containing layer over the metal-containing seed layer to fill the feature.Type: GrantFiled: August 23, 2007Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Ling Chen, Mei Chang
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Patent number: 7506747Abstract: A break-away mounting system for a continuous-motion, high-speed position conveyor system is disclosed. A support cradle may be suspended from a conveyor belt such that the support cradle maintains a fixed position and orientation relative to at least one point on the conveyor belt without inducing appreciable stress on the conveyor belt, the support cradle, or the coupling between the conveyor belt and the support cradle. The mount may include a leading rotatable bearing attached to the support cradle which may releasably engage a first key attached to the conveyor belt, the rotatable bearing adapted to accommodate rotational forces applied to the support cradle by the conveyor belt. The mount may also include a slide bearing attached to the support cradle which may releasably engage a second key attached to the conveyor belt, the slide bearing adapted to accommodate longitudinal forces applied to the support cradle by the conveyor belt.Type: GrantFiled: July 28, 2006Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Michael R. Rice, Eric A. Englhardt, Robert B. Lowrance, Martin R. Elliott, Jeffrey C. Hudgens
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Patent number: 7506746Abstract: In a semiconductor fabrication facility, a conveyor transports substrate carriers. The substrate carriers are unloaded from the conveyor and loaded onto the conveyor without stopping the conveyor. A load and/or unload mechanism lifts the substrate carriers from the conveyor during unloading operations, while matching the horizontal speed of the conveyor. Similarly, during loading operations, the load/unload mechanism lowers a substrate carrier into engagement with the conveyor while matching the horizontal speed of the conveyor. Individual substrates, without carriers, may be similarly loaded and/or unloaded from a conveyor.Type: GrantFiled: June 11, 2007Date of Patent: March 24, 2009Assignee: Applied Materials, Inc.Inventors: Michael Robert Rice, Robert B. Lowrance, Martin R. Elliott, Jeffrey C. Hudgens, Eric A. Englhardt
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Publication number: 20090075489Abstract: A processing chamber is seasoned by providing a flow of season precursors to the processing chamber. A high-density plasma is formed from the season precursors by applying at least 7500 W of source power distributed with greater than 70% of the source power at a top of the processing chamber. A season layer having a thickness of at least 5000 ? is deposited at one point using the high-density plasma. Each of multiple substrates is transferred sequentially into the processing chamber to perform a process that includes etching. The processing chamber is cleaned between sequential transfers of the substrates.Type: ApplicationFiled: September 4, 2008Publication date: March 19, 2009Applicant: Applied Materials, Inc.Inventors: Anchuan Wang, Young S. Lee, Manoj Vellaikal, Jason Thomas Bloking, Jin Ho Jeon, Hemant P. Mungekar
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Patent number: 7505832Abstract: Embodiments of a method and apparatus for determining a substrate exchange position in a processing system are provided. In one embodiment, a method of determining a substrate exchange position in a processing system includes determining an initial exchange position within a processing chamber, and resolving a change in the exchange position. The step of resolving may further include the step of sensing a change in temperature of a facet of a transfer chamber having the processing chamber coupled thereto, sensing a change in a state of the system, or sensing a change in position of the processing chamber, among others.Type: GrantFiled: March 16, 2004Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Dongchoon Suh, Akihiro Hosokawa, Hung The Nguyen
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Patent number: 7504338Abstract: Disclosed herein is a method of pattern etching a layer of a silicon-containing dielectric material. The method employs a plasma source gas including CF4 to CHF3, where the volumetric ratio of CF4 to CHF3 is within the range of about 2:3 to about 3:1; more typically, about 1:1 to about 2:1. Etching is performed at a process chamber pressure within the range of about 4 mTorr to about 60 mTorr. The method provides a selectivity for etching a silicon-containing dielectric layer relative to photoresist of 1.5:1 or better. The method also provides an etch profile sidewall angle ranging from 88° to 92° between said etched silicon-containing dielectric layer and an underlying horizontal layer. in the semiconductor structure. The method provides a smooth sidewall when used in combination with certain photoresists which are sensitive to 193 nm radiation.Type: GrantFiled: August 9, 2006Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Yan Du, Meihua Shen, Shashank Deshmukh
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Patent number: 7504018Abstract: A method for conditioning an Ecmp pad is provided. In one embodiment, a method for electrochemically processing a substrate includes the steps of providing an electrical bias voltage between the top surface of the pad assembly and an electrode, and electrochemically removing contaminants from the top surface of the pad.Type: GrantFiled: October 31, 2006Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: You Wang, Stan D. Tsai, Lakshmanan Karuppiah, Jie Diao, Renhe Jia, Alpay Yilmaz
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Patent number: 7503837Abstract: A two part retaining ring is described that has a lower ring and an upper ring. The lower ring contacts a polishing surface during chemical mechanical polishing. The upper surface and the lower surface of the lower ring have thick and thin subportions to increase the flexibility of the lower ring.Type: GrantFiled: March 5, 2007Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Jeonghoon Oh, Hung Chih Chen, Thomas B. Brezoczky, Douglas R. McAllister, David Datong Huo
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Patent number: 7504647Abstract: Apparatus for optical inspection of a sample includes a detector assembly, which is configured to receive radiation from a focal area on the sample, and a translation mechanism, which is operative to impart motion to at least one of the detector assembly and the sample so that the focal area of the detector assembly translates over the sample along a translation path. A height sensor is positioned in a known location relative to the detector assembly so as to measure a height of the height sensor relative to a point on the sample that is ahead of the focal area by a predetermined distance along the translation path. A controller is adapted to determine an estimated height of the detector assembly, responsively to the height measured by the height sensor along the translation path.Type: GrantFiled: August 22, 2006Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Gal Amar, Avishay Guetta, Doron Shoham, Gilad Schwartz, Ronen Eynat
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Patent number: 7504008Abstract: In a method of refurbishing a deposition target, a surface of the target is provided in a process zone. An electrical arc is generated in the process zone, and a consumable metal wire is inserted into the process zone to form liquefied metal. A pressurized gas is injected into the process zone to direct the liquefied metal toward the surface of the target to splatter the liquefied metal on the surface, thereby forming a coating having the metal on at least a portion of the surface of the target that exhibits reduced contamination from the environment.Type: GrantFiled: March 12, 2004Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Trung T. Doan, Kenny King-Tai Ngan
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Patent number: 7504622Abstract: A high-throughput inspection system and method.Type: GrantFiled: March 12, 2007Date of Patent: March 17, 2009Assignee: Applied Materials, Israel, Ltd.Inventors: Emanuel Elyasaf, Nissim Elmaliah
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Patent number: 7504332Abstract: A method and apparatus for depositing a material layer onto a substrate is described. The method includes delivering a mixture of precursors for the material layer into a process chamber and depositing the material layer on the substrate at low temperature. The material layer can be used as an encapsulating layer for various display applications which require low temperature deposition process due to thermal instability of underlying materials used. In one aspect, the encapsulating layer includes one or more material layers (multilayer) having one or more barrier layer materials and one or more low-dielectric constant materials. The encapsulating layer thus deposited provides reduced surface roughness, improved water-barrier performance, reduce thermal stress, good step coverage, and can be applied to many substrate types and many substrate sizes. Accordingly, the encapsulating layer thus deposited provides good device lifetime for various display devices, such as OLED devices.Type: GrantFiled: January 8, 2007Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Tae Kyung Won, Sanjay Yadav
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Patent number: 7503448Abstract: A break-away mounting system for a continuous-motion, high-speed position conveyor system is disclosed. A support cradle may be suspended from a conveyor belt such that the support cradle maintains a fixed position and orientation relative to at least one point on the conveyor belt without inducing appreciable stress on the conveyor belt, the support cradle, or the coupling between the conveyor belt and the support cradle. The mount may include a leading rotatable bearing attached to the support cradle which may releasably engage a first key attached to the conveyor belt, the rotatable bearing adapted to accommodate rotational forces applied to the support cradle by the conveyor belt. The mount may also include a slide bearing attached to the support cradle which may releasably engage a second key attached to the conveyor belt, the slide bearing adapted to accommodate longitudinal forces applied to the support cradle by the conveyor belt.Type: GrantFiled: October 31, 2006Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Michael R. Rice, Eric A. Englhardt, Robert B. Lowrance, Martin R. Elliott, Jeffrey C. Hudgens
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Patent number: 7504335Abstract: Generally, the process includes depositing a barrier layer and seed layer on a feature formed in a dielectric layer, performing a grafting process, initiating a copper layer and then filing the feature by use of a bulk copper fill process. Copper features formed according to aspects described herein have desirable adhesion properties to a barrier and seed layers formed on a semiconductor substrate and demonstrate enhanced electromigration and stress migration results in the fabricated devices formed on the substrate.Type: GrantFiled: April 13, 2006Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Michael Yang, Aron Rosenfeld, Hooman Hafezi, Zhi-Wen Sun, John Dukovic
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Patent number: 7504006Abstract: A DC magnetron sputter reactor for sputtering deposition materials such as tantalum and tantalum nitride, for example, and its method of use, in which self-ionized plasma (SIP) sputtering and capacitively coupled plasma (CCP) sputtering are promoted, either together or alternately, in the same chamber. Also, bottom coverage may be thinned or eliminated by inductively-coupled plasma (ICP) resputtering. SIP is promoted by a small magnetron having poles of unequal magnetic strength and a high power applied to the target during sputtering. CCP is provided by a pedestal electrode which capacitively couples RF energy into a plasma. The CCP plasma is preferably enhanced by a magnetic field generated by electromagnetic coils surrounding the pedestal which act to confine the CCP plasma and increase its density.Type: GrantFiled: July 31, 2003Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Praburam Gopalraja, Jianming Fu, Xianmin Tang, John C. Forster, Umesh Kelkar
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Patent number: 7504041Abstract: A method for processing a workpiece in a plasma reactor chamber having radially inner and outer source power applicators at a ceiling of the chamber facing the workpiece, the inner and outer source power applicators and the workpiece sharing a common axis of symmetry. The method includes applying RF source power to the source power applicator, and introducing a process gas into the reactor chamber so as to carry out a plasma process on the workpiece characterized by a plasma process parameter, the plasma process parameter having a spatial distribution across the surface of the workpiece.Type: GrantFiled: May 3, 2006Date of Patent: March 17, 2009Assignee: Applied Materials, Inc.Inventors: Madhavi R. Chandrachood, Richard Lewington, Darin Bivens, Ajay Kumar, Ibrahim M. Ibrahim, Michael N. Grimbergen, Renee Koch, Sheeba J. Panayil