Patents by Inventor Ralph M. Wadensweiler
Ralph M. Wadensweiler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7678245Abstract: Embodiments of the invention generally provide a method and apparatus for processing a substrate in an electrochemical mechanical planarizing system. In one embodiment, a cell for polishing a substrate includes a processing pad disposed on a top surface of a platen assembly. A plurality of conductive elements are arranged in a spaced-apart relation across the upper planarizing surface and adapted to bias the substrate relative to an electrode disposed between the pad and the platen assembly. A plurality of passages are formed through the platen assembly between the top surface and a plenum defined within the platen assembly. In another embodiment, a system is provided having a bulk processing cell and a residual processing cell. The residual processing cell includes a biased conductive planarizing surface. In further embodiments, the conductive element is protected from attack by process chemistries.Type: GrantFiled: June 30, 2004Date of Patent: March 16, 2010Assignee: Applied Materials, Inc.Inventors: Yan Wang, Siew Neo, Feng Liu, Stan D. Tsai, Yongqi Hu, Alain Duboust, Antoine Manens, Ralph M. Wadensweiler, Rashid Mavliev, Liang-Yuh Chen, Donald J. K. Olgado, Paul D. Butterfield, Ming-Kuei Tseng, Shou-Sung Chang, Lizhong Sun
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Patent number: 7427340Abstract: A method and apparatus for a processing pad assembly for polishing a substrate is disclosed. The processing pad assembly has a conductive processing pad having a plurality of raised features made of a conductive composite disposed on a conductive carrier. The raised features are adapted to polish the feature surface of a substrate and define channels therebetween. The conductive processing pad may have lower features made of a conductive composite that extend into the sub-pad from the conductive carrier. The conductive processing pad is adhered to a sub-pad bound to an opposing conductive layer and the opposing conductive layer bound to a platen assembly.Type: GrantFiled: April 8, 2005Date of Patent: September 23, 2008Assignee: Applied Materials, Inc.Inventors: Rashid A. Mavliev, Ralph M. Wadensweiler
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Patent number: 7290976Abstract: According to one aspect of the present invention, a passive substrate gripper, including first and second segments, is provided. The second segment may be connected to the first segment, and the first and second segments may jointly form a substrate support. The substrate support may be shaped to support a substrate in first position within the substrate support when the substrate support is in a first angular orientation. The substrate may be removable from substrate support in a first direction when in the first position. The substrate may move into a second position when the substrate support is moved into a second angular orientation. The substrate may not be removable in the first direction when in the second position within the substrate support. The passive substrate gripper may also include a support ledge extending from opposing inner surfaces of the first and second segments, on which the substrate is supported.Type: GrantFiled: June 28, 2005Date of Patent: November 6, 2007Assignee: Applied Materials, Inc.Inventors: Ralph M. Wadensweiler, Rick R. Endo, Alexander S. Ko
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Patent number: 7285036Abstract: Embodiments of a pad assembly for processing a substrate are provided. The pad assembly includes a processing layer having a working surface adapted to process a substrate, a lower layer coupled to and disposed below the processing layer, and an electrode having an upper surface disposed above the lower layer and below the working surface of the processing layer. The upper surface of the electrode is at least partially exposed to the working surface by a plurality of apertures to provide an electrolyte pathway between the upper surface of the electrode and the working surface of the pad assembly.Type: GrantFiled: November 21, 2006Date of Patent: October 23, 2007Assignee: Applied Materials, Inc.Inventors: Shou-Sung Chang, Stan D. Tsai, Donald J. K. Olgado, Liang-Yuh Chen, Alain Duboust, Ralph M. Wadensweiler
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Patent number: 7137868Abstract: Embodiments of a pad assembly for processing a substrate are provided. The pad assembly includes a processing layer having a working surface adapted to process a substrate, a lower layer coupled to and disposed below the processing layer, and an electrode having an upper surface disposed above the lower layer and below the working surface of the processing layer. The upper surface of the electrode is at least partially exposed to the working surface to provide an electrolyte pathway between the upper surface of the electrode and the working surface.Type: GrantFiled: March 6, 2006Date of Patent: November 21, 2006Assignee: Applied Materials, Inc.Inventors: Shou-Sung Chang, Stan D. Tsai, Donald J. K. Olgado, Liang-Yuh Chen, Alain Duboust, Ralph M. Wadensweiler
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Patent number: 7134948Abstract: A retaining ring having a bottom portion that is removable from the ring's upper portion is described. The upper and lower portions of the retaining ring include one or more magnetic bodies and/or one or more bodies formed of a material that is attracted to magnets.Type: GrantFiled: December 21, 2005Date of Patent: November 14, 2006Assignee: Applied Materials, Inc.Inventors: Ming-Kuei Tseng, Ralph M. Wadensweiler
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Patent number: 7029365Abstract: Embodiments of a pad assembly for processing a substrate are provided. The pad assembly includes a processing layer having a working surface adapted to process a substrate, a lower layer coupled to and disposed below the processing layer, and an electrode having an upper surface disposed above the lower layer and below the working surface of the processing layer. The upper surface of the electrode is at least partially exposed to the working surface to provide an electrolyte pathway between the upper surface of the electrode and the working surface.Type: GrantFiled: December 23, 2003Date of Patent: April 18, 2006Assignee: Applied Materials Inc.Inventors: Shou-Sung Chang, Stan D Tsai, Donald J. K. Olgado, Liang-Yuh Chen, Alain Duboust, Ralph M. Wadensweiler
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Publication number: 20060030156Abstract: Articles of manufacture and processes for planarizing a layer on a substrate are provided. In one aspect, a process is provided for manufacturing a polishing article comprising combining a conductive material component and components of a binder material to form a composite material, at least partially curing the composite material, and introducing abrasive particles of about 0.01 inches or greater in diameter to form an abrasive-containing composite material.Type: ApplicationFiled: August 1, 2005Publication date: February 9, 2006Inventors: Paul D. Butterfield, Ralph M. Wadensweiler
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Publication number: 20040163946Abstract: Embodiments of a pad assembly for processing a substrate are provided. The pad assembly includes a processing layer having a working surface adapted to process a substrate, a lower layer coupled to and disposed below the processing layer, and an electrode having an upper surface disposed above the lower layer and below the working surface of the processing layer. The upper surface of the electrode is at least partially exposed to the working surface to provide an electrolyte pathway between the upper surface of the electrode and the working surface.Type: ApplicationFiled: December 23, 2003Publication date: August 26, 2004Applicant: APPLIED MATERIALS, INC.Inventors: Shou-Sung Chang, Stan D. Tsai, Donald J.K. Olgado, Liang-Yuh Chen, Alain Duboust, Ralph M. Wadensweiler
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Publication number: 20030213703Abstract: A method and apparatus are provided for polishing a substrate surface. In one aspect, an apparatus for polishing a substrate includes a pad assembly having a conductive pad, a backing and a conductive layer adapted to be biased by a power source. In another embodiment, an apparatus for polishing a substrate includes a pad assembly disposed in a basin. The basin has two electrodes coupled to opposite poles of a power source. Each electrode extends partially through a respective aperture formed in the pad assembly. The apparatus may be part of an electro-chemical polishing station that may optionally be part of a system that includes chemical mechanical polishing stations.Type: ApplicationFiled: May 16, 2002Publication date: November 20, 2003Applicant: Applied Materials, Inc.Inventors: Yan Wang, Feng Q. Liu, Yongqi Hu, Alain Duboust, Liang-Yuh Chen, Paul D. Butterfield, Ralph M. Wadensweiler
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Patent number: 6459382Abstract: A substrate support is provided that comprises a sensing system configured to detect when a moveable end effector is in an over clamp position. The sensing system may comprise various sensors such as an inductive sensor, a light emitter and a detector, and a pressure sensor, etc. Use of such an over clamp sensor may prevent substrate damage that results from improper substrate gripping.Type: GrantFiled: April 26, 2001Date of Patent: October 1, 2002Assignee: Applied Materials, Inc.Inventor: Ralph M. Wadensweiler
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Patent number: 5978202Abstract: An electrostatic chuck 75 for holding a substrate 25 in a process chamber 20, comprises an electrostatic member 80 including an insulator having an electrode 95 therein and a receiving surface for receiving the substrate. A base 85 supports the electrostatic member, the base having a first thermal resistance R.sub.B and having a lower surface that rests on the process chamber. A thermal transfer regulator pad 100 is positioned between the receiving surface of the electrostatic member and the lower surface of the base, the thermal pad comprising a second thermal resistance R.sub.P that is sufficiently higher or lower than the thermal resistance R.sub.B of the base, to provide a predetermined temperature profile across a processing surface of the substrate during processing in the chamber.Type: GrantFiled: June 27, 1997Date of Patent: November 2, 1999Assignee: Applied Materials, Inc.Inventors: Ralph M. Wadensweiler, Ajay Kumar, Shashank C. Deshmukh, Weinan Jiang, Rolf A. Guenther