Patents by Inventor Babak Adibi

Babak Adibi 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: 11255013
    Abstract: The use of non-mass analyzed ion implanter is advantageous in such application as it generates ion implanting at different depth depending on the ions energy and mass. This allows for gaining advantage from lubricity offered as a result of the very light deposition on the surface, and at the same time the hardness provided by the intercalated ions implanted below it, providing benefits for cover glass, low E enhancement, and other similar materials. In further aspects, ion implantation is used to create other desirable film properties such anti-microbial and corrosion resistance.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 22, 2022
    Assignee: INTEVAC, INC.
    Inventors: Terry Bluck, Babak Adibi
  • Patent number: 10854772
    Abstract: A system for transporting substrates and precisely align the substrates horizontally and vertically. The system decouples the functions of transporting the substrates, vertically aligning the substrates, and horizontally aligning the substrates. The transport system includes a carriage upon which plurality of chuck assemblies are loosely positioned, each of the chuck assemblies includes a base having vertical alignment wheels to place the substrate in precise vertical alignment. A pedestal is configured to freely slide on the base. The pedestal includes a set of horizontal alignment wheels that precisely align the pedestal in the horizontal direction. An electrostatic chuck is magnetically held to the pedestal.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: December 1, 2020
    Assignee: INTEVAC, INC.
    Inventors: Hoang Huy Vu, Babak Adibi, Terry Bluck
  • Patent number: 10636935
    Abstract: An ion implantation system having a grid assembly. The system includes a plasma source configured to provide plasma in a plasma region; a first grid plate having a plurality of apertures configured to allow ions from the plasma region to pass therethrough, wherein the first grid plate is configured to be biased by a power supply; a second grid plate having a plurality of apertures configured to allow the ions to pass therethrough subsequent to the ions passing through the first grid plate, wherein the second grid plate is configured to be biased by a power supply; and a substrate holder configured to support a substrate in a position where the substrate is implanted with the ions subsequent to the ions passing through the second grid plate.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: April 28, 2020
    Assignee: Intevac, Inc.
    Inventors: Babak Adibi, Moon Chun
  • Patent number: 10559710
    Abstract: A system for transporting substrates and precisely alignment the substrates to shadow masks. The system decouples the functions of transporting the substrates, vertically aligning the substrates, and horizontally aligning the substrates. The transport system includes a carriage upon which plurality of pedestals are loosely positioned, each of the pedestals includes a base having vertical alignment wheels to place the substrate in precise vertical alignment. Two sidebars are configured to freely slide on the base. Each of the sidebars includes a set of horizontal alignment wheels that precisely align the substrate in the horizontal direction. Substrate support claws are attached to the sidebars in precise alignment to the vertical alignment wheels and the horizontal alignment wheels.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: February 11, 2020
    Assignee: INTEVAC, INC.
    Inventors: William Eugene Runstadler, Jr., Babak Adibi, Terry Bluck
  • Patent number: 10446430
    Abstract: A chuck for wafer processing that counters the deleterious effects of thermal expansion of the wafer. Also, a combination of chuck and shadow mask arrangement that maintains relative alignment between openings in the mask and the wafer in spite of thermal expansion of the wafer. A method for fabricating a solar cell by ion implant, while maintaining relative alignment of the implanted features during thermal expansion of the wafer.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: October 15, 2019
    Assignee: INTEVAC, INC.
    Inventors: Terry Bluck, Babak Adibi, Vinay Prabhakar, William Eugene Runstadler, Jr.
  • Publication number: 20190027636
    Abstract: A system for transporting substrates and precisely alignment the substrates to shadow masks. The system decouples the functions of transporting the substrates, vertically aligning the substrates, and horizontally aligning the substrates. The transport system includes a carriage upon which plurality of pedestals are loosely positioned, each of the pedestals includes a base having vertical alignment wheels to place the substrate in precise vertical alignment. Two sidebars are configured to freely slide on the base. Each of the sidebars includes a set of horizontal alignment wheels that precisely align the substrate in the horizontal direction. Substrate support claws are attached to the sidebars in precise alignment to the vertical alignment wheels and the horizontal alignment wheels.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 24, 2019
    Inventors: William Eugene Runstadler, JR., Babak Adibi, Terry Bluck
  • Publication number: 20190027635
    Abstract: A system for transporting substrates and precisely align the substrates horizontally and vertically. The system decouples the functions of transporting the substrates, vertically aligning the substrates, and horizontally aligning the substrates. The transport system includes a carriage upon which plurality of chuck assemblies are loosely positioned, each of the chuck assemblies includes a base having vertical alignment wheels to place the substrate in precise vertical alignment. A pedestal is configured to freely slide on the base. The pedestal includes a set of horizontal alignment wheels that precisely align the pedestal in the horizontal direction. An electrostatic chuck is magnetically held to the pedestal.
    Type: Application
    Filed: July 19, 2018
    Publication date: January 24, 2019
    Inventors: Hoang Huy Vu, Babak Adibi, Terry Bluck
  • Publication number: 20180096823
    Abstract: An RF antenna system for a plasma chamber comprises an RF input coupling a trunk to an RO power supply; two main branches electrically connected to the main trunk, each of the two main branches coupled to a plurality of rod antennas; a plurality of tuning devices, each provided between one of the rod antennas and the corresponding main branch.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 5, 2018
    Inventors: Terry Bluck, Babak Adibi
  • Publication number: 20180023190
    Abstract: The use of non-mass analyzed ion implanter is advantageous in such application as it generates ion implanting at different depth depending on the ions energy and mass. This allows for gaining advantage from lubricity offered as a result of the very light deposition on the surface, and at the same time the hardness provided by the intercalated ions implanted below it, providing benefits for cover glass, low E enhancement, and other similar materials. In further aspects, ion implantation is used to create other desirable film properties such anti-microbial and corrosion resistance.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 25, 2018
    Inventors: Terry Bluck, Babak Adibi
  • Patent number: 9875922
    Abstract: A system for processing substrates has a vacuum enclosure and a processing chamber situated to process wafers in a processing zone inside the vacuum enclosure. Two rail assemblies are provided, one on each side of the processing zone. Two chuck arrays ride, each on one of the rail assemblies, such that each is cantilevered on one rail assemblies and support a plurality of chucks. The rail assemblies are coupled to an elevation mechanism that places the rails in upper position for processing and at lower position for returning the chuck assemblies for loading new wafers. A pickup head assembly loads wafers from a conveyor onto the chuck assemblies. The pickup head has plurality of electrostatic chucks that pick up the wafers from the front side of the wafers. Cooling channels in the processing chucks are used to create air cushion to assist in aligning the wafers when delivered by the pickup head.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: January 23, 2018
    Assignee: INTEVAC, INC.
    Inventors: Terry Pederson, Henry Hieslmair, Moon Chun, Vinay Prabhakar, Babak Adibi, Terry Bluck
  • Patent number: 9850570
    Abstract: The use of non-mass analyzed ion implanter is advantageous in such application as it generates ion implanting at different depth depending on the ions energy and mass. This allows for gaining advantage from lubricity offered as a result of the very light deposition on the surface, and at the same time the hardness provided by the intercalated ions implanted below it, providing benefits for cover glass, low E enhancement, and other similar materials. In further aspects, ion implantation is used to create other desirable film properties such anti-microbial and corrosion resistance.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: December 26, 2017
    Assignee: INTEVAC, INC.
    Inventors: Terry Bluck, Babak Adibi
  • Publication number: 20170345964
    Abstract: An ion implantation system having a grid assembly. The system includes a plasma source configured to provide plasma in a plasma region; a first grid plate having a plurality of apertures configured to allow ions from the plasma region to pass therethrough, wherein the first grid plate is configured to be biased by a power supply; a second grid plate having a plurality of apertures configured to allow the ions to pass therethrough subsequent to the ions passing through the first grid plate, wherein the second grid plate is configured to be biased by a power supply; and a substrate holder configured to support a substrate in a position where the substrate is implanted with the ions subsequent to the ions passing through the second grid plate.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Inventors: Babak Adibi, Moon Chun
  • Publication number: 20170242503
    Abstract: Mechanical properties of a cover glass for a touch screen are improved by ion implanting the front surface. The implant process uses non-mass analyzed ions that physically embed in voids between inter-connected molecules of the glass. The embedded ions create compression stress on the molecular structure, thus enhancing the mechanical properties of the glass to avoid scratches. Also, implanting ions containing fluoride enhances the hydrophobic and oleophobis properties of the glass to prevent finger prints.
    Type: Application
    Filed: February 20, 2017
    Publication date: August 24, 2017
    Inventors: Babak Adibi, Terry Bluck
  • Patent number: 9741894
    Abstract: An ion implantation system having a grid assembly. The system includes a plasma source configured to provide plasma in a plasma region; a first grid plate having a plurality of apertures configured to allow ions from the plasma region to pass therethrough, wherein the first grid plate is configured to be biased by a power supply; a second grid plate having a plurality of apertures configured to allow the ions to pass therethrough subsequent to the ions passing through the first grid plate, wherein the second grid plate is configured to be biased by a power supply; and a substrate holder configured to support a substrate in a position where the substrate is implanted with the ions subsequent to the ions passing through the second grid plate.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: August 22, 2017
    Assignee: INTEVAC, INC.
    Inventors: Babak Adibi, Moon Chun
  • Publication number: 20170236740
    Abstract: A chuck for wafer processing that counters the deleterious effects of thermal expansion of the wafer. Also, a combination of chuck and shadow mask arrangement that maintains relative alignment between openings in the mask and the wafer in spite of thermal expansion of the wafer. A method for fabricating a solar cell by ion implant, while maintaining relative alignment of the implanted features during thermal expansion of the wafer.
    Type: Application
    Filed: January 19, 2017
    Publication date: August 17, 2017
    Inventors: Terry Bluck, Babak Adibi, Vinay Prabhakar, William Eugene Runstadler, JR.
  • Patent number: 9583661
    Abstract: A grid for minimizing effects of ion divergence in plasma ion implant. The plasma grid is made of a flat plate having a plurality of holes, wherein the holes are arranged in a plurality of rows and a plurality of columns thereby forming beamlets of ions that diverge in one direction. A mask is used to form the implanted shapes on the wafer, wherein the holes in the mask are oriented orthogonally to the direction of beamlet divergence.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 28, 2017
    Assignee: INTEVAC, INC.
    Inventors: Vinay Prabhakar, Babak Adibi
  • Publication number: 20170009337
    Abstract: The use of non-mass analyzed ion implanter is advantageous in such application as it generates ion implanting at different depth depending on the ions energy and mass. This allows for gaining advantage from lubricity offered as a result of the very light deposition on the surface, and at the same time the hardness provided by the intercalated ions implanted below it, providing benefits for cover glass, low E enhancement, and other similar materials. In further aspects, ion implantation is used to create other desirable film properties such anti-microbial and corrosion resistance.
    Type: Application
    Filed: July 6, 2016
    Publication date: January 12, 2017
    Inventors: Terry Bluck, Babak Adibi
  • Patent number: 9543114
    Abstract: System and method to align a substrate under a shadow mask. A substrate holder has alignment mechanism, such as rollers, that is made to abut against an alignment straight edge. The substrate is then aligned with respect to the straight edge and is chucked to the substrate holder. The substrate holder is then transported into a vacuum processing chamber, wherein it is made to abut against a mask straight edge to which the shadow mask is attached and aligned to. Since the substrate was aligned to an alignment straight edge, and since the mask is aligned to the mask straight edge that is precisely aligned to the alignment straight edge, the substrate is perfectly aligned to the mask.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 10, 2017
    Assignee: INTEVAC, INC.
    Inventors: Babak Adibi, Vinay Prabhakar, Terry Bluck
  • Publication number: 20160332908
    Abstract: A glass cover for electronic devices, the glass cover having a first coating formed directly over and in contact with the front surface of the glass (where front means the surface facing the user), the first coating is textured, and a second coating is provided over the first coating, the second coating being resistance to scratching, e.g., a DLC coating. The first coating may be made of, e.g., silicon-oxide, silicon-nitride, or silicon oxy-nitride.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 17, 2016
    Inventors: Terry Bluck, Babak Adibi
  • Publication number: 20160322523
    Abstract: A photovoltaic cell having a graded doped region such as a graded emitter and methods of making photovoltaic cells having graded doped regions such as a graded emitter are disclosed. Doping is adjusted across a surface to minimize resistive (I2R) power losses. The graded emitters provide a gradual change in sheet resistance over the entire distance between the lines. The graded emitter profile may have a lower sheet resistance near the metal lines and a higher sheet resistance farther from the metal line edges. The sheet resistance is graded such that the sheet resistance is lower where I2R power losses are highest due to current crowding. One advantage of graded emitters over selective emitters is improved efficiency. An additional advantage of graded emitters over selective emitters is improved ease of aligning metallization to the low sheet resistance regions.
    Type: Application
    Filed: July 12, 2016
    Publication date: November 3, 2016
    Inventors: Henry Hieslmair, Babak Adibi