Patents by Inventor Zoran Krivokapic

Zoran Krivokapic 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).

  • Publication number: 20080090360
    Abstract: Methods are provided for the fabrication of multiple finger transistors. A method comprises forming a layer of gate-forming material overlying a semiconductor substrate and forming a layer of dummy gate material overlying the layer of gate-forming material. The layer of dummy gate material is etched to form a dummy gate and sidewall spacers are formed about sidewalls of the dummy gate. The dummy gate is removed and the layer of gate-forming material is etched using the sidewall spacers as a mask to form at least two gate electrodes.
    Type: Application
    Filed: September 28, 2006
    Publication date: April 17, 2008
    Inventor: Zoran Krivokapic
  • Publication number: 20080061359
    Abstract: An embodiment of the present invention is directed to a memory cell. The memory cell includes a stack formed over a substrate. The stack includes a gate oxide layer and an overlying polycrystalline silicon layer. The stack further includes first and second undercut regions formed under the polycrystalline silicon layer and adjacent to the gate oxide layer. The memory cell further includes a first charge storage element formed in the first undercut region and a second charge storage element formed in the second undercut region.
    Type: Application
    Filed: February 5, 2007
    Publication date: March 13, 2008
    Inventors: Chungho Lee, Hiroyuki Kinoshita, Zoran Krivokapic, Wei Zheng, Mark Chang, Rinji Sugino, Chi Chang
  • Publication number: 20080054316
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Application
    Filed: October 29, 2007
    Publication date: March 6, 2008
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Qi Xiang, Niraj Subba, Witold Maszara, Zoran Krivokapic, Ming-Ren Lin
  • Patent number: 7335594
    Abstract: A method for manufacturing a memory device having a metal nanocrystal charge storage structure. A substrate is provided and a first layer of dielectric material is grown on the substrate. An absorption layer is formed on the first layer of dielectric material. The absorption layer includes a plurality of titanium atoms bonded to the first layer of dielectric material, a nitrogen atom bonded to each titanium atom, and at least one ligand bonded to the nitrogen atom. The at least one ligand is removed from the nitrogen atoms to form nucleation centers. A metal such as tungsten is bonded to the nucleation centers to form metallic islands. A dielectric material is formed on the nucleation centers and annealed to form a nanocrystal layer. A control oxide is formed over the nanocrystal layer and a gate electrode is formed on the control oxide.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: February 26, 2008
    Assignees: Spansion LLC, Advanced Micro Devices, Inc.
    Inventors: Connie Pin-Chin Wang, Zoran Krivokapic, Suzette Keefe Pangrle, Jinsong Yin
  • Patent number: 7309650
    Abstract: A memory device having a metal nanocrystal charge storage structure and a method for its manufacture. The memory device may be manufactured by forming a first oxide layer on the semiconductor substrate, then disposing a porous dielectric layer on the oxide layer and disposing a second oxide layer on the porous dielectric layer. A layer of electrically conductive material is formed on the second layer of dielectric material. An etch mask is formed on the electrically conductive material. The electrically conductive material and the underlying dielectric layers are anisotropically etched to form a dielectric structure on which a gate electrode is disposed. A metal layer is formed on the dielectric structure and the gate electrode and treated so that portions of the metal layer diffuse into the porous dielectric layer. Then the metal layer is removed.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 18, 2007
    Assignees: Spansion LLC, Advanced Micro Devices, Inc.
    Inventors: Connie Pin-Chin Wang, Lu You, Zoran Krivokapic, Paul Raymond Besser, Suzette Keefe Pangrle
  • Patent number: 7306997
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: December 11, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Qi Xiang, Niraj Subba, Witold P. Maszara, Zoran Krivokapic, Ming-Ren Lin
  • Patent number: 7235436
    Abstract: A method for doping fin structures in FinFET devices includes forming a first glass layer on the fin structure of a first area and a second area. The method further includes removing the first glass layer from the second area, forming a second glass layer on the fin structure of the first area and the second area, and annealing the first area and the second area to dope the fin structures.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: June 26, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Ming-Ren Lin, Zoran Krivokapic, Haihong Wang, Bin Yu
  • Patent number: 7202118
    Abstract: A fully depleted SOI MOSFET arrangement includes a buried oxide (BOX) layer with recesses in the BOX layer and a post extended upwardly between the recesses. A thin channel region is formed on the post and a gate over the channel. Deep source/drain region are adjacent to the channel region and extend into the recesses.
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: April 10, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Zoran Krivokapic
  • Patent number: 7196372
    Abstract: A non-volatile memory device includes a substrate, an insulating layer, a fin, an oxide layer, spacers and one or more control gates. The insulating layer is formed on the substrate and the fin is formed on the insulating layer. The oxide layer is formed on the fin and acts as a tunnel oxide for the memory device. The spacers are formed adjacent the side surfaces of the fin and the control gates are formed adjacent the spacers. The spacers act as floating gate electrodes for the non-volatile memory device.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: March 27, 2007
    Assignee: Spansion LLC
    Inventors: Bin Yu, Ming-Ren Lin, Srikanteswara Dakshina-Murthy, Zoran Krivokapic
  • Patent number: 7192836
    Abstract: A method and system for providing a halo implant to a semiconductor device is disclosed. The method and system includes providing a thin photoresist layer that covers a substantial amount of an active area including a source region and a drain region of the semiconductor device. The method and system further includes providing the halo implant to the semiconductor device, using the thin photoresist layer as a mask. Utilizing this thin photoresist layer, taking into account other height variables, the source and drain regions can be opened only as needed. At a 45° angle, the implant can be delivered to all transistors in the circuit in the targeted area as well as getting only a large amount of the dose (up to ¾ of the dose) to the transistor edge which sits on the trench edge.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: March 20, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Ahmad Ghaemmaghami, Zoran Krivokapic, Brian Swanson
  • Patent number: 7179692
    Abstract: A method of forming a semiconductor device includes forming a fin on an insulating layer, where the fin includes a number of side surfaces, a top surface and a bottom surface. The method also includes forming a gate on the insulating layer, where the gate has a substantially U-shaped cross-section at a channel region of the semiconductor device.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: February 20, 2007
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Bin Yu, Shibly S. Ahmed, Judy Xilin An, Srikanteswara Dakshina-Murthy, Zoran Krivokapic, Haihong Wang
  • Patent number: 7148526
    Abstract: A double gate germanium metal-oxide semiconductor field-effect transistor (MOSFET) includes a germanium fin, a first gate formed adjacent a first side of the germanium fin, and a second gate formed adjacent a second side of the germanium fin opposite the first side. A triple gate MOSFET includes a germanium fin, a first gate formed adjacent a first side of the germanium fin, a second gate formed adjacent a second side of the germanium fin opposite the first side, and a top gate formed on top of the germanium fin. An all-around gate MOSFET includes a germanium fin, a first sidewall gate structure formed adjacent a first side of the germanium fin, a second sidewall gate structure formed adjacent a second side of the germanium fin, and additional gate structures formed on and around the germanium fin.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: December 12, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Judy Xilin An, Zoran Krivokapic, Haihong Wang, Bin Yu
  • Patent number: 7105425
    Abstract: A semiconductor device with a superlattice and method of making same includes forming a layer of amorphous silicon over a substrate, and forming a layer of nanocrystals by laser thermal annealing the layer of amorphous silicon. A gate dielectric is formed between the layer of amorphous silicon and the substrate. A dielectric layer is formed on the layer of amorphous silicon. The steps of forming the layer of amorphous silicon and forming the dielectric layer can be repeated. The thickness of the dielectric layer is between about 25 to 40 angstroms, and the thickness of the amorphous silicon layer is between about 30 to 50 angstroms. The average diameter of the nanocrystals is less than 40 angstroms.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: September 12, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Zoran Krivokapic
  • Publication number: 20060099752
    Abstract: A semiconductor substrate is provided having an insulator thereon with a semiconductor layer on the insulator. A deep trench isolation is formed, introducing strain to the semiconductor layer. A gate dielectric and a gate are formed on the semiconductor layer. A spacer is formed around the gate, and the semiconductor layer and the insulator are removed outside the spacer. Recessed source/drain are formed outside the spacer.
    Type: Application
    Filed: November 10, 2004
    Publication date: May 11, 2006
    Applicant: ADVANCED MICRO DEVICES, INC.
    Inventors: Qi Xiang, Niraj Subba, Witold Maszara, Zoran Krivokapic, Ming-Ren Lin
  • Patent number: 7029958
    Abstract: A method for forming a metal-oxide semiconductor field-effect transistor (MOSFET) includes patterning a fin area, a source region, and a drain region on a substrate, forming a fin in the fin area, and forming a mask in the fin area. The method further includes etching the mask to expose a channel area of the MOSFET, etching the fin to thin a width of the fin in the channel area, forming a gate over the fin, and forming contacts to the gate, the source region, and the drain region.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: April 18, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Cyrus E. Tabery, Shibly S. Ahmed, Matthew S. Buynoski, Srikanteswara Dakshina-Murthy, Zoran Krivokapic, Haihong Wang, Chih-Yuh Yang, Bin Yu
  • Patent number: 7012298
    Abstract: A non-volatile memory device is provided by forming a tunnel oxide layer and a gate electrode on the tunnel oxide layer. Silicon structures are formed below the side surfaces of the gate electrode and act as a floating gate electrode for the non-volatile memory device.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: March 14, 2006
    Assignee: Advanced MIcro Devices, Inc.
    Inventor: Zoran Krivokapic
  • Patent number: 7001807
    Abstract: A method of fabricating a dual bit dielectric memory cell structure on a silicon substrate includes implanting buried bit lines within the substrate and fabricating a layered island on the surface of the substrate between the buried bit lines. The island has a perimeter defining a gate region, and comprises a tunnel dielectric layer on the surface of the silicon on insulator wafer, an isolation barrier dielectric layer on the surface of the tunnel dielectric layer, a top dielectric layer on the surface of the isolation barrier dielectric layer, and a polysilicon gate on the surface of the top dielectric layer. A portion of the isolation barrier dielectric layer is removed to form an undercut region within the gate region and a charge trapping material is deposited within the undercut region.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: February 21, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Wei Zheng, Mark W. Randolph, Nicholas H. Tripsas, Zoran Krivokapic, Jack F. Thomas, Mark T. Ramsbey
  • Patent number: 6984569
    Abstract: A shallow trench isolation region formed in a layer of semiconductor material. The shallow trench isolation region includes a trench formed in the layer of semiconductor material, the trench being defined by sidewalls and a bottom; a liner within the trench formed from a high-K material, the liner conforming to the sidewalls and bottom of the trench; and a fill section made from isolating material, and disposed within and conforming to the high-K liner. A method of forming the shallow trench isolation region is also disclosed.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: January 10, 2006
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Olov B. Karlsson, HaiHong Wang, Bin Yu, Zoran Krivokapic, Qi Xiang
  • Patent number: 6975014
    Abstract: A method for forming a FDSOI device with channel length less than 50 nm with good short channel control. The gate has a tapered polysilicon spacer and a dielectric spacer. A polysilicon gate feature is formed and dielectric sidewall spacers are formed thereon. The polysilicon gate feature is then etched to form tapered poly features separated by a gap. A gate dielectric is deposited at low temperature, then metal is deposited into the gap to form the metal gate.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: December 13, 2005
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Zoran Krivokapic, Sunny Cherian, Allison Holbrook
  • Patent number: 6921963
    Abstract: A narrow channel FinFET is described herein with a narrow channel width. A protective layer may be formed over the narrow channel, the protective layer being wider than the narrow channel.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: July 26, 2005
    Assignee: Advanced Micro Devices, Inc
    Inventors: Zoran Krivokapic, Judy Xilin An, Srikanteswara Dakshina-Murthy, Haihong Wang, Bin Yu