Patents by Inventor Amir Al-Bayati

Amir Al-Bayati 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).

  • Patent number: 7291360
    Abstract: A chemical vapor deposition process is carried out in a reactor chamber having a set of plural parallel ion shower grids that divide the chamber into an upper ion generation region and a lower process region, each of the ion shower grids having plural orifices in mutual registration from grid to grid, each orifice being oriented in a non-parallel direction relative to a surface plane of the respective ion shower grid. A workpiece is placed in the process region, so that a workpiece surface of the workpiece is generally facing a surface plane of the nearest one of the ion shower grids, and a gas mixture comprising a deposition precursor species is furnished into the ion generation region. The process region is evacuated at an evacuation rate sufficient to create a pressure drop across the plural ion shower grids between the ion generation and process regions whereby the pressure in the ion generation region is several times the pressure in the process region.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: November 6, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Hiroji Hanawa, Tsutomu Tanaka, Kenneth S. Collins, Amir Al-Bayati, Kartik Ramaswamy, Andrew Nguyen
  • Patent number: 7288491
    Abstract: One method of performing plasma immersion ion implantation on a workpiece in a plasma reactor chamber includes initially depositing a seasoning film on the interior surfaces of the plasma reactor chamber before the workpiece is introduced, by introducing a seasoning film precursor gas into the chamber and generating a plasma within the chamber, performing plasma immersion ion implantation on the workpiece by introducing an implant species precursor gas into the chamber and generating a plasma, and then removing the workpiece from the chamber and removing the seasoning film from the chamber interior surfaces.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: October 30, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Kenneth S. Collins, Hiroji Hanawa, Kartik Ramaswamy, Andrew Nguyen, Amir Al-Bayati, Biagio Gallo
  • Publication number: 20070212811
    Abstract: Device-enhancing coatings are deposited on CMOS devices by successively masking with photoresist each one of the sets of N-channel and P-channel devices while unmasking or leaving unmasked the other set, and after each step of successively masking one of the sets of devices, carrying out low temperature CVD steps with a toroidal RF plasma current while applying an RF plasma bias voltage. The temperature of the workpiece is held below a threshold photoresist removal temperature. The RF bias voltage is held at a level at which the coating is deposited with a first stress when the unmasked set consists of the P-channel devices and with a second stress when the unmasked set consists of N-channel devices.
    Type: Application
    Filed: April 19, 2007
    Publication date: September 13, 2007
    Inventors: Hiroji Hanawa, Kartik Ramaswamy, Kenneth Collins, Amir Al-Bayati, Biagio Gallo, Andrew Nguyen
  • Publication number: 20070202640
    Abstract: A method of forming source and drain regions in a semiconductor transistor. The method includes the steps of forming a first sidewall spacer on sidewall surfaces of a gate electrode that is formed on an underlying substrate, where the first sidewall spacer includes amorphous carbon. The method may also include implanting the source and drain regions in the semiconductor substrate, and removing the first sidewall spacer before annealing the source and drain regions. The method may still further include forming a second sidewall spacer on the sidewall surfaces of the gate electrode, where the second sidewall spacer has a k-value less than 4. Also, a method to enhance conformality of a sidewall spacer layer. The method may include the steps of pulsing a radio-frequency power source to generate periodically a plasma, and depositing the plasma on sidewall surfaces of a gate electrode to form the sidewall spacer layer.
    Type: Application
    Filed: February 28, 2006
    Publication date: August 30, 2007
    Applicant: Applied Materials, Inc.
    Inventors: Amir Al-Bayati, Reza Arghavani, Mei-Yee Shek, Li-Qun Xia, Mihaela Balseanu, Bok Kim, Michael Cox, Chad Peterson, Hichem M'Saad
  • Patent number: 7244474
    Abstract: A chemical vapor deposition process is carried out in a reactor chamber with an ion shower grid that divides the chamber into an upper ion generation region and a lower process region, the ion shower grid having plural orifices oriented in a non-parallel direction relative to a surface plane of the ion shower grid. A workpiece is placed in the process region facing the ion shower grid, the workpiece having a workpiece surface generally facing the surface plane of the ion shower grid. A gas mixture is furnished comprising deposition precursor species into the ion generation region and the process region is evacuated at an evacuation rate sufficient to create a pressure drop across the ion shower grid from the ion generation region to the process region whereby the pressure in the ion generation region is at least several times the pressure in the process region.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: July 17, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Hiroji Hanawa, Tsutomu Tanaka, Kenneth S. Collins, Amir Al-Bayati, Kartik Ramaswamy, Andrew Nguyen
  • Publication number: 20070119546
    Abstract: A plasma immersion ion implantation reactor for implanting a species into a workpiece includes an enclosure which has a side wall and a ceiling defining a chamber, and a workpiece support pedestal within the chamber for supporting a workpiece having a surface layer into which the species are to be ion implanted, the workpiece support pedestal facing an interior surface of the ceiling so as to define therebetween a process region extending generally across the diameter of the wafer support pedestal. The reactor further includes an RF plasma source power generator connected across the ceiling or the sidewall and the workpiece support pedestal for capacitively coupling RF source power into the chamber. A gas distribution apparatus is provided for furnishing process gas into the chamber and a supply of process gas is provided for furnishing to the gas distribution devices a process gas containing the species.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 31, 2007
    Inventors: Kenneth Collins, Hiroji Hanawa, Kartik Ramaswamy, Andrew Nguyen, Amir Al-Bayati, Biagio Gallo, Gonzalo Monroy
  • Patent number: 7225047
    Abstract: Methods, systems, and mediums of controlling a semiconductor manufacturing process are described. The method comprises the steps of measuring at least one critical dimension of at least one device being fabricated on at least one of the plurality of wafers, determining at least one process parameter value on the at least one measured dimension, and controlling at least one semiconductor manufacturing tool to process the at least one of the plurality of wafers based on the at least one parameter value. A variation in the at least one critical dimension causes undesirable variations in performance of the at least one device, and at least one process condition is directed to controlling the processing performed on the plurality of wafers. The at least one manufacturing tool includes at least one of an implanter tool and an annealing tool.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: May 29, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Amir Al-Bayati, Babak Adibi, Majeed Foad, Sasson Somekh
  • Patent number: 7223676
    Abstract: A low temperature process for depositing a coating containing any of silicon, nitrogen, hydrogen or oxygen on a workpiece includes placing the workpiece in a reactor chamber facing a processing region of the chamber, introducing a process gas containing any of silicon, nitrogen, hydrogen or oxygen into the reactor chamber, generating a torroidal RF plasma current in a reentrant path through the processing region by applying RF plasma source power at an HF frequency on the order of about 10 MHz to a portion of a reentrant conduit external of the chamber and forming a portion of the reentrant path, applying RF plasma bias power at an LF frequency on the order of one or a few MHz to the workpiece, and maintaining the temperature of the workpiece under about 100 degrees C.
    Type: Grant
    Filed: May 3, 2004
    Date of Patent: May 29, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Hiroji Hanawa, Kartik Ramaswamy, Kenneth S. Collins, Amir Al-Bayati, Biagio Gallo, Andrew Nguyen
  • Patent number: 7183177
    Abstract: A method of fabricating a semiconductor-on-insulator structure from a pair of semiconductor wafers, includes forming an oxide layer on at least a first surface of a first one of the wafers and performing a bonding enhancement implantation step by ion implantation of a first species in the first surface of at least either of the pair of wafers. The method further includes performing a cleavage ion implantation step on one of the pair of wafers by ion implanting a second species to define a cleavage plane across a diameter of the wafer at the predetermined depth below the top surface of the one wafer. The wafers are then bonded together by placing the first surfaces of the pair of wafers onto one another so as to form an semiconductor-on-insulator structure.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: February 27, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Amir Al-Bayati, Kenneth S. Collins, Hiroji Hanawa, Kartik Ramaswamy, Biagio Gallo, Andrew Nguyen
  • Publication number: 20070042580
    Abstract: An integrated microelectronic circuit has a multi-layer interconnect structure overlying the transistors consisting of stacked metal pattern layers and insulating layers separating adjacent ones of said metal pattern layers. Each of the insulating layers is a dielectric material with plural gas bubbles distributed within the volume of the dielectric material to reduce the dielectric constant of the material, the gas bubbles being formed by ion implantation of a gaseous species into the dielectric material.
    Type: Application
    Filed: October 19, 2006
    Publication date: February 22, 2007
    Inventors: Amir Al-Bayati, Rick Roberts, Kenneth Collins, Ken MacWilliams, Hiroji Hanawa, Kartik Ramaswamy, Biagio Gallo, Andrew Nguyen
  • Publication number: 20070032082
    Abstract: A method of processing a thin film structure on a semiconductor substrate using an optically writable mask, the method includes placing the substrate in a reactor chamber, the substrate having on its surface a target layer to be exposed to a light source in accordance with a predetermined pattern, depositing an optically writable carbon-containing mask layer on the substrate by (a) introducing a carbon-containing process gas into the chamber, (b) generating a reentrant toroidal RF plasma current in a reentrant path that includes a process zone overlying the workpiece by coupling plasma RF source power to an external portion of the reentrant path, (c) coupling RF plasma bias power or bias voltage to the workpiece.
    Type: Application
    Filed: August 8, 2005
    Publication date: February 8, 2007
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Biagio Gallo, Kenneth Collins, Kai Ma, Vijay Parihar, Dean Jennings, Abhilash Mayur, Amir Al-Bayati, Andrew Nguyen
  • Publication number: 20070032054
    Abstract: A method of processing a thin film structure on a semiconductor substrate using an optically writable mask includes placing the substrate in a reactor chamber, the substrate having on its surface a target layer to be etched in accordance with a predetermined pattern, and depositing a carbon-containing hard mask layer on the substrate by (a) introducing a carbon-containing process gas into the chamber, (b) generating a reentrant toroidal RF plasma current in a reentrant path that includes a process zone overlying the workpiece by coupling plasma RF source power to an external portion of the reentrant path, and (c) coupling RF plasma bias power or bias voltage to the workpiece. The method further includes photolithographically defining the predetermined pattern in the carbon-containing hard mask layer, and etching the target layer in the presence of the hard mask layer.
    Type: Application
    Filed: August 8, 2005
    Publication date: February 8, 2007
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Biagio Gallo, Kenneth Collins, Kai Ma, Vijay Parihar, Dean Jennings, Abhilash Mayur, Amir Al-Bayati, Andrew Nguyen
  • Publication number: 20070032095
    Abstract: A method of forming a conductor in a thin film structure on a semiconductor substrate includes forming high aspect ratio openings in a base layer having vertical side walls, depositing a dielectric barrier layer comprising a dielectric compound of a barrier metal on the surfaces of the high aspect ratio openings including the vertical side walls, depositing a metal barrier layer comprising the barrier metal on the first barrier layer, depositing a main conductor species seed layer on the metal barrier layer and depositing a main conductor layer. The method further includes annealing the main conductor layer by (a) directing light from an array of continuous wave lasers into a line of light extending at least partially across the thin film structure, and (b) translating the line of light relative to the thin film structure in a direction transverse to the line of light.
    Type: Application
    Filed: August 8, 2005
    Publication date: February 8, 2007
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Biagio Gallo, Kenneth Collins, Kai Ma, Vijay Parihar, Dean Jennings, Abhilash Mayur, Amir Al-Bayati, Andrew Nguyen
  • Publication number: 20070032004
    Abstract: A method of forming a barrier layer for a thin film structure on a semiconductor substrate includes forming high aspect ratio openings in a base layer having vertical side walls, depositing a dielectric barrier layer comprising a dielectric compound of a barrier metal on the surfaces of the high aspect ratio openings including the vertical side walls and depositing a metal barrier layer comprising the barrier metal on the first barrier layer. The method further includes reflowing the metal barrier layer by (a) directing light from an array of continuous wave lasers into a line of light extending at least partially across the thin film structure, and (b) translating the line of light relative to the thin film structure in a direction transverse to the line of light.
    Type: Application
    Filed: August 8, 2005
    Publication date: February 8, 2007
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Biagio Gallo, Kenneth Collins, Kai Ma, Vijay Parihar, Dean Jennings, Abhilash Mayur, Amir Al-Bayati, Andrew Nguyen
  • Patent number: 7166524
    Abstract: An integrated microelectronic circuit has a multi-layer interconnect structure overlying the transistors consisting of stacked metal pattern layers and insulating layers separating adjacent ones of said metal pattern layers. Each of the insulating layers is a dielectric material with plural gas bubbles distributed within the volume of the dielectric material to reduce the dielectric constant of the material, the gas bubbles being formed by ion implantation of a gaseous species into the dielectric material.
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: January 23, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Amir Al-Bayati, Rick J. Roberts, Kenneth S. Collins, Ken MacWilliams, Hiroji Hanawa, Kartik Ramaswamy, Biagio Gallo, Andrew Nguyen
  • Publication number: 20060289795
    Abstract: Methods and apparatus for electron beam treatment of a substrate are provided. An electron beam apparatus that includes a vacuum chamber, at least one thermocouple assembly in communication with the vacuum chamber; and a heating device in communication with the vacuum chamber and combinations thereof are provided. In one embodiment, the vacuum chamber comprises a cathode, an anode, and a substrate support. In another embodiment, the vacuum chamber comprises a grid located between the anode and the substrate support. In one embodiment the heating device comprises a first parallel light array and a second light array positioned such that the first parallel light array and the second light array intersect. In one embodiment the thermocouple assembly comprises a temperature sensor made of aluminum nitride.
    Type: Application
    Filed: May 15, 2006
    Publication date: December 28, 2006
    Inventors: Dale Dubois, Juan Rocha-Alvarez, Amir Al-Bayati, Khaled Elsheref, Alexandros Demos, Lester D'Cruz, Hichem M'Saad, Ashish Shah, Takashi Shimizu, Naoyuki Iwasaki
  • Publication number: 20060272772
    Abstract: Methods and apparatus for electron beam treatment of a substrate are provided. An electron beam apparatus that includes a vacuum chamber, at least one thermocouple assembly in communication with the vacuum chamber, a heating device in communication with the vacuum chamber, and combinations thereof are provided. In one embodiment, the vacuum chamber comprises an electron source wherein the electron source comprises a cathode connected to a high voltage source, an anode connected to a low voltage source, and a substrate support. In another embodiment, the vacuum chamber comprises a grid located between the anode and the substrate support. In one embodiment the heating device comprises a first parallel light array and a second light array positioned such that the first parallel light array and the second light array intersect. In one embodiment the thermocouple assembly comprises a temperature sensor made of aluminum nitride.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 7, 2006
    Inventors: Amir Al-Bayati, Lester D'Cruz, Alexandros Demos, Dale Dubois, Khaled Elsheref, Naoyuki Iwasaki, Hichem M'Saad, Juan Rocha-Alvarez, Ashish Shah, Takashi Shimizu
  • Publication number: 20060270217
    Abstract: A process flow integration scheme employs one or more techniques to control stress in a semiconductor device formed thereby. In accordance with one embodiment, cumulative stress contributed by RTP of a nitride spacer and polysilicon gate, and subsequent deposition of a high stress etch stop layer, enhance strain and improve device performance. Germanium may be deposited or implanted into the gate structure in order to facilitate stress control.
    Type: Application
    Filed: April 5, 2006
    Publication date: November 30, 2006
    Applicant: Applied Materials, Inc.
    Inventors: Mihaela Balseanu, Jia Lee, Mei-Yee Shek, Amir Al-Bayati, Li-Qun Xia, Hichem M'Saad
  • Publication number: 20060263540
    Abstract: A method of processing a workpiece includes introducing an optical absorber material precursor gas into a chamber containing the workpiece, generating an RF oscillating toroidal plasma current in a reentrant path that includes a process zone overlying the workpiece by applying RF source power, so as to deposit a layer of an optical absorber material on the workpiece, and exposing the workpiece to optical radiation that is at least partially absorbed in the optical absorber layer.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 23, 2006
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Biagio Gallo, Kenneth Collins, Kai Ma, Vijay Parihar, Dean Jennings, Abhilash Mayur, Amir Al-Bayati, Andrew Nguyen
  • Publication number: 20060260545
    Abstract: An integrated system for processing a semiconductor wafer includes a toroidal source plasma reactor for depositing a heat absorbing layer, the reactor including a wafer support, a reactor chamber, an external reentrant toroidal conduit coupled to said chamber on generally opposing sides thereof, an RF source power applicator for coupling power to a section of said external reentrant conduit and a process gas source containing a heat absorbing material precursor gas. The integrated system further includes an optical annealing chamber.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 23, 2006
    Inventors: Kartik Ramaswamy, Hiroji Hanawa, Biagio Gallo, Kenneth Collins, Kai Ma, Vijay Parihar, Dean Jennings, Abhilash Mayur, Amir Al-Bayati, Andrew Nguyen