Patents by Inventor Khurshed Sorabji
Khurshed Sorabji 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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Publication number: 20120270166Abstract: A method and apparatus for thermally processing a substrate is provided. In one embodiment, a method for thermally treating a substrate is provided. The method includes transferring a substrate at a first temperature to a substrate support in a chamber, the chamber having a heating source and a cooling source disposed in opposing portions of the chamber, heating the substrate to a second temperature during a first time period while the substrate is disposed on the substrate support, heating the substrate to a third temperature during a second time period while the substrate is disposed on the substrate support, and cooling the substrate in the chamber to a fourth temperature that is substantially equal to the second temperature during the second time period.Type: ApplicationFiled: June 29, 2012Publication date: October 25, 2012Applicant: Applied Materials, Inc.Inventors: KHURSHED SORABJI, Alexander N. Lerner
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Patent number: 8294068Abstract: Embodiments of a lamphead and apparatus utilizing same are provided herein. In some embodiments, a lamphead for use in thermal processing may include a monolithic member having a plurality of coolant passages and a plurality of lamp passages and reflector cavities, wherein each lamp passage is configured to accommodate a lamp and each reflector cavity is shaped to act as a reflector or to receive a replaceable reflector for the lamp, and wherein the plurality of coolant passages are disposed proximate to the plurality of lamp passages; and at least one heat transfer member extending from the monolithic member into each coolant passage. In some embodiments, the lamphead may be disposed in an apparatus comprising a process chamber having a substrate support, wherein the lamphead is positioned to provide energy to the substrate support.Type: GrantFiled: September 10, 2008Date of Patent: October 23, 2012Assignee: Applied Materials, Inc.Inventors: Joseph M. Ranish, Khurshed Sorabji, Kedarnath Sangam, Alexander Lerner
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Patent number: 8227729Abstract: A method and apparatus for thermally processing a substrate is provided. In one embodiment, a method for thermally treating a substrate is provided. The method includes transferring a substrate to a chamber at a first temperature, the chamber having a heating source and a cooling source disposed in opposing portions of the chamber, heating the substrate in the chamber during a first time period to a second temperature, heating the substrate in the chamber to a third temperature during a second time period, and cooling the substrate in the chamber to a fourth temperature that is substantially equal to the second temperature during the second time period, wherein the second time period is about 2 seconds or less.Type: GrantFiled: September 21, 2010Date of Patent: July 24, 2012Assignee: Applied Materials, Inc.Inventors: Khurshed Sorabji, Alexander N. Lerner
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Patent number: 8222574Abstract: Apparatus and methods for achieving uniform heating or cooling of a substrate during a rapid thermal process are disclosed. More particularly, apparatus and methods for controlling the temperature of an edge ring supporting a substrate and/or a reflector plate during a rapid thermal process to improve temperature uniformity across the substrate are disclosed, which include a thermal mass or plate adjacent the edge ring to heat or cool the edge ring.Type: GrantFiled: March 25, 2008Date of Patent: July 17, 2012Assignee: Applied Materials, Inc.Inventors: Khurshed Sorabji, Alexander Lerner, Joseph Ranish, Aaron Hunter, Bruce Adams, Mehran Behdjat, Rajesh Ramanujam
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Publication number: 20120106935Abstract: Embodiments of the invention generally relate to apparatuses and methods for chemical vapor deposition (CVD). In one embodiment, a heating lamp assembly for a CVD reactor system is provided which includes a lamp housing disposed on an upper surface of a support base and containing a plurality of lamps extending from a first lamp holder to a second lamp holder. The lamps may have split filament lamps and/or non-split filament lamps, and in some examples, split and non-split filament may be alternately disposed between the first and second lamp holders. A reflector may be disposed on the upper surface of the support base between the first and second lamp holders. In another embodiment, the method includes exposing a lower surface of a wafer carrier to energy emitted from the heating lamp assembly and heating the wafer carrier to a predetermined temperature.Type: ApplicationFiled: March 16, 2010Publication date: May 3, 2012Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas G. Hegedus
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Publication number: 20120090548Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a wafer carrier track for levitating and traversing a wafer carrier within a vapor deposition reactor system is provided which includes upper and lower sections of a track assembly having a gas cavity formed therebetween. A guide path extends along an upper surface of the upper section and between two side surfaces which extend along and above the guide path and parallel to each other. A plurality of gas holes along the guide path extends from the upper surface of the upper section, through the upper section, and into the gas cavity. In some examples, the upper and lower sections of the track assembly may independently contain quartz, and in some examples, may be fused together.Type: ApplicationFiled: March 16, 2010Publication date: April 19, 2012Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas G. Hegedus
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Publication number: 20120067286Abstract: Embodiments of the invention generally relate to apparatuses and methods for chemical vapor deposition (CVD) processes. In one embodiment, a CVD reactor has a reactor lid assembly disposed on a reactor body and containing a first showerhead assembly, an isolator assembly, a second showerhead assembly, and an exhaust assembly consecutively and linearly disposed next to each other on a lid support. The CVD reactor further contains first and second faceplates disposed on opposite ends of the reactor body, wherein the first showerhead assembly is disposed between the first faceplate and the isolator assembly and the exhaust assembly is disposed between the second showerhead assembly and the second faceplate. The reactor body has a wafer carrier disposed on a wafer carrier track and a lamp assembly disposed below the wafer carrier track and containing a plurality of lamps which may be utilized to heat wafers disposed on the wafer carrier.Type: ApplicationFiled: March 16, 2010Publication date: March 22, 2012Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas G. Hegedus
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Publication number: 20120067282Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a reactor lid assembly for vapor deposition is provided which includes a first showerhead assembly and an isolator assembly disposed next to each other on a lid support, and a second showerhead assembly and an exhaust assembly disposed next to each other on the lid support, wherein the isolator assembly is disposed between the first and second showerhead assemblies and the second showerhead assembly is disposed between the isolator assembly and the exhaust assembly.Type: ApplicationFiled: March 16, 2010Publication date: March 22, 2012Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas G. Hegedus
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Publication number: 20120055405Abstract: An apparatus and method for supporting, positioning and rotating a substrate are provided. In one embodiment, a support assembly for supporting a substrate includes an upper base plate and a lower base plate. The substrate is floated on a thin layer of air over the upper base plate. A positioning assembly includes a plurality of air bearing edge rollers or air flow pockets used to position the substrate in a desired orientation inside above the upper base plate. A plurality of slanted apertures or air flow pockets are configured in the upper base plate for flowing gas therethrough to rotate the substrate to ensure uniform heating during processing.Type: ApplicationFiled: November 11, 2011Publication date: March 8, 2012Inventors: Blake Koelmel, Alexander N. Lerner, Joseph M. Ranish, Kedarnath Sangam, Khurshed Sorabji
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Patent number: 8111978Abstract: Apparatus and methods for thermally processing a substrate are provided. A chamber containing a levitating support assembly configured to position the substrate at different distances from a plate during the heating and cooling of a substrate. In one embodiment a plurality of openings on the surface of the plate are configured to evenly distribute gas across a radial surface of the substrate. The distribution of gas may couple radiant energy not reflected back to the substrate during thermal processing with an absorptive region of the plate to begin the cooling of the substrate. The method and apparatus provided within allows for a controllable and effective means for thermally processing a substrate rapidly.Type: GrantFiled: July 11, 2008Date of Patent: February 7, 2012Assignee: Applied Materials, Inc.Inventors: Khurshed Sorabji, Joseph Michael Ranish, Wolfgang Aderhold, Aaron Muir Hunter, Alexander N. Lerner
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Patent number: 8057602Abstract: Embodiments of the invention contemplate a method, apparatus and system that are used to support, position, and rotate a substrate during processing. Embodiments of the invention may also include a method of controlling the transfer of heat between a substrate and substrate support positioned in a processing chamber. The apparatus and methods described herein remove the need for complex, costly and often unreliable components that would be required to accurately position and rotate a substrate during one or more processing steps, such as an rapid thermal processing (RTP) process, a chemical vapor deposition (CVD) process, a physical vapor deposition (PVD) process, atomic layer deposition (ALD) process, dry etching process, wet clean, and/or laser annealing process.Type: GrantFiled: January 21, 2008Date of Patent: November 15, 2011Assignee: Applied Materials, Inc.Inventors: Blake Koelmel, Alexander N. Lerner, Joseph M. Ranish, Kedarnath Sangam, Khurshed Sorabji
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Patent number: 8057601Abstract: An apparatus and method for supporting, positioning and rotating a substrate are provided. In one embodiment, a support assembly for supporting a substrate includes an upper base plate and a lower base plate. The substrate is floated on a thin layer of air over the upper base plate. A positioning assembly includes a plurality of air bearing edge rollers or air flow pockets used to position the substrate in a desired orientation inside above the upper base plate. A plurality of slanted apertures or air flow pockets are configured in the upper base plate for flowing gas therethrough to rotate the substrate to ensure uniform heating during processing.Type: GrantFiled: May 9, 2007Date of Patent: November 15, 2011Assignee: Applied Materials, Inc.Inventors: Blake Koelmel, Alexander N. Lerner, Joseph M. Ranish, Kedarnath Sangam, Khurshed Sorabji
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Publication number: 20110008740Abstract: A method and apparatus for thermally processing a substrate is provided. In one embodiment, a method for thermally treating a substrate is provided. The method includes transferring a substrate to a chamber at a first temperature, the chamber having a heating source and a cooling source disposed in opposing portions of the chamber, heating the substrate in the chamber during a first time period to a second temperature, heating the substrate in the chamber to a third temperature during a second time period, and cooling the substrate in the chamber to a fourth temperature that is substantially equal to the second temperature during the second time period, wherein the second time period is about 2 seconds or less.Type: ApplicationFiled: September 21, 2010Publication date: January 13, 2011Inventors: Khurshed Sorabji, Alexander N. Lerner
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Patent number: 7812286Abstract: A method and apparatus for thermally processing a substrate is described. The apparatus includes a substrate support configured to move linearly and/or rotationally by a magnetic drive. The substrate support is also configured to receive a radiant heat source to provide heating region in a portion of the chamber. An active cooling region comprising a cooling plate is disposed opposite the heating region. The substrate may move between the two regions to facilitate rapidly controlled heating and cooling of the substrate.Type: GrantFiled: October 26, 2007Date of Patent: October 12, 2010Assignee: Applied Materials, Inc.Inventors: Khurshed Sorabji, Alexander N. Lerner
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Publication number: 20100229793Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a showerhead assembly is provided which includes a body having a centralized channel extending through upper and lower portions of the body and extending parallel to a central axis of the body. The showerhead assembly contains an optional diffusion plate having a first plurality of holes and disposed within the centralized channel, an upper tube plate having a second plurality of holes and disposed within the centralized channel below the diffusion plate, a lower tube plate having a third plurality of holes and disposed within the centralized channel below the upper tube plate, and a plurality of tubes extending from the upper tube plate to the lower tube plate. Each tube is coupled to and in fluid communication with individual holes of the upper and lower tube plates.Type: ApplicationFiled: March 16, 2010Publication date: September 16, 2010Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus
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Publication number: 20100212591Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a reactor lid assembly for vapor deposition is provided which includes a first showerhead assembly and an isolator assembly disposed next to each other on a lid support, and a second showerhead assembly and an exhaust assembly disposed next to each other on the lid support, wherein the isolator assembly is disposed between the first and second showerhead assemblies and the second showerhead assembly is disposed between the isolator assembly and the exhaust assembly.Type: ApplicationFiled: March 16, 2010Publication date: August 26, 2010Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus
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Publication number: 20100209626Abstract: Embodiments of the invention generally relate to methods for chemical vapor deposition (CVD) processes. In one embodiment, a method for heating a substrate or a substrate susceptor within a vapor deposition reactor system includes exposing a lower surface of a substrate susceptor, such as a wafer carrier, to energy emitted from a heating lamp assembly, and heating the substrate susceptor to a predetermined temperature. The heating lamp assembly generally contains a lamp housing disposed on an upper surface of a support base and contains at least one lamp holder, a plurality of lamps extending from the lamp holder, and a reflector disposed on the upper surface of the support base, next to the lamp holder, and below the lamps. The plurality of lamps may have split filament lamps and/or non-split filament lamps for heating inner and outer portions of the substrate susceptor.Type: ApplicationFiled: March 16, 2010Publication date: August 19, 2010Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus
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Publication number: 20100209082Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a heating lamp assembly for a vapor deposition reactor system is provided which includes a lamp housing disposed on an upper surface of a support base and containing a first lamp holder and a second lamp holder and a plurality of lamps extending from the first lamp holder to the second lamp holder. The plurality of lamps may have split filament lamps and/or non-split filament lamps, and in some examples, split and non-split filament may be alternately disposed between the first and second lamp holders. A reflector may be disposed on the upper surface of the support base between the first and second lamp holders. The reflector may contain gold or a gold alloy.Type: ApplicationFiled: March 16, 2010Publication date: August 19, 2010Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus
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Publication number: 20100206229Abstract: Embodiments of the invention generally relate to apparatuses for chemical vapor deposition (CVD) processes. In one embodiment, a CVD reactor is provided which includes a reactor lid assembly disposed on a reactor body and containing a first showerhead assembly, an isolator assembly, a second showerhead assembly, and an exhaust assembly consecutively and linearly disposed next to each other on a lid support. The CVD reactor further contains first and second faceplates disposed on opposite ends of the reactor body, wherein the first showerhead assembly is disposed between the first faceplate and the isolator assembly and the exhaust assembly is disposed between the second showerhead assembly and the second faceplate. The reactor body has a wafer carrier disposed on a wafer carrier track and a lamp assembly disposed below the wafer carrier track and containing a plurality of lamps which may be utilized to heat wafers disposed on the wafer carrier.Type: ApplicationFiled: March 16, 2010Publication date: August 19, 2010Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus
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Publication number: 20100209620Abstract: Embodiments of the invention generally relate to methods for chemical vapor deposition (CVD) processes. In one embodiment, a method for processing a wafer within a vapor deposition reactor is provided which includes heating at least one wafer disposed on a wafer carrier by exposing a lower surface of the wafer carrier to radiation emitted from a lamp assembly and flowing a liquid through a passageway extending throughout the reactor to maintain the reactor lid assembly at a predetermined temperature, such as within a range from about 275° C. to about 325° C. The method further includes traversing the wafer carrier along a wafer carrier track through at least a chamber containing a showerhead assembly and an isolator assembly and another chamber containing a showerhead assembly and an exhaust assembly, and removing gases from the reactor through the exhaust assembly.Type: ApplicationFiled: March 16, 2010Publication date: August 19, 2010Applicant: ALTA DEVICES, INC.Inventors: Gang He, Gregg Higashi, Khurshed Sorabji, Roger Hamamjy, Andreas Hegedus