Patents by Inventor Elizabeth Duch

Elizabeth Duch 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: 8097500
    Abstract: In one embodiment, the invention is a method and apparatus for fabricating a high-performance band-edge complementary metal-oxide-semiconductor device. One embodiment of a method for fabricating a complementary metal-oxide-semiconductor device includes fabricating an n-type metal-oxide-semiconductor device using a gate first process, and fabricating a p-type metal-oxide-semiconductor device using a gate last process.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: January 17, 2012
    Assignee: International Business Machines Corporation
    Inventors: Takashi Ando, Eduard A. Cartier, Changhwan Choi, Elizabeth A. Duch, Bruce B. Doris, Young-Hee Kim, Vijay Narayanan, James Pan, Vamsi K. Paruchuri
  • Publication number: 20110272287
    Abstract: A method of patterning magnetic devices and sensors by double etching, which includes forming a layer of dielectric on a substrate; depositing a thin adhesion layer and a thin seed layer; applying a thin resist frame to pattern a structure; cleaning the metal surface to prepare for plating; electroplating to fill up the structure and the uncovered field area, which uses a paddle cell with a permanent magnet providing magnetic field to induce magnetic orientation; stripping the resist frame; etching the seed layer/adhesion layer exposed below the resist frame down to the dielectric surface; etching the rest of magnetic materials and the seed layer using electrolytic etching in the field; etching the adhesion layer in the field, and repeating the steps for building structures with multiple levels.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 10, 2011
    Applicant: International Business Machines Corporation
    Inventors: Elizabeth A. Duch, Ronald Goldblatt, David L. Rath, Lubomyr T. Romankiw, Xiaoyan Shao, Steven E. Steen, James Vichiconti
  • Publication number: 20090298244
    Abstract: NFET and PFET devices with separately stressed channel regions, and methods of their fabrication is disclosed. A FET is disclosed which includes a gate, which gate includes a metal in a first state of stress. The FET also includes a channel region hosted in a single crystal Si based material, which channel region is overlaid by the gate and is in a second state of stress. The second state of stress of the channel region is of an opposite sign than the first state of stress of the metal included in the gate. The NFET channel is usually in a tensile state of stress, while the PFET channel is usually in a compressive state of stress. The methods of fabrication include the deposition of metal layers by physical vapor deposition (PVD), in such manner that the layers are in stressed states.
    Type: Application
    Filed: August 7, 2009
    Publication date: December 3, 2009
    Applicant: International Business Machines Corporation
    Inventors: Bruce B. Doris, Cyril Cabral, JR., Elizabeth A. Duch, Stephen M. Rossnagel, Michelle L. Steen
  • Publication number: 20090181505
    Abstract: In one embodiment, the invention is a method and apparatus for fabricating a high-performance band-edge complementary metal-oxide-semiconductor device. One embodiment of a method for fabricating a complementary metal-oxide-semiconductor device includes fabricating an n-type metal-oxide-semiconductor device using a gate first process, and fabricating a p-type metal-oxide-semiconductor device using a gate last process.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 16, 2009
    Inventors: Takashi Ando, Eduard A. Cartier, Changhwan Choi, Elizabeth A. Duch, Bruce B. Doris, Young-Hee Kim, Vijay Narayanan, James Pan, Vamsi K. Paruchuri
  • Publication number: 20080217700
    Abstract: NFET and PFET devices with separately stressed channel regions, and methods of their fabrication is disclosed. A FET is disclosed which includes a gate, which gate includes a metal in a first state of stress. The FET also includes a channel region hosted in a single crystal Si based material, which channel region is overlaid by the gate and is in a second state of stress. The second state of stress of the channel region is of an opposite sign than the first state of stress of the metal included in the gate. The NFET channel is usually in a tensile state of stress, while the PFET channel is usually in a compressive state of stress. The methods of fabrication include the deposition of metal layers by physical vapor deposition (PVD), in such manner that the layers are in stressed states.
    Type: Application
    Filed: March 11, 2007
    Publication date: September 11, 2008
    Inventors: Bruce B. Doris, Cyril Cabral, Elizabeth A. Duch, Stephen M. Rossnagel, Michelle L. Steen
  • Publication number: 20050250318
    Abstract: Compounds of Ta and N, potentially including further elements, and with a resistivity below about 20 m?cm and with the elemental ratio of N to Ta greater than about 0.9 are disclosed for use as gate materials in field effect devices. A representative embodiment of such compounds, TaSiN, is stable at typical CMOS processing temperatures on SiO2 containing dielectric layers and high-k dielectric layers, with a workfunction close to that of n-type Si. Metallic Ta—N compounds are deposited by a chemical vapor deposition method using an alkylimidotris(dialkylamido)Ta species, such as tertiaryamylimidotris(dimethylamido)Ta (TAIMATA), as Ta precursor. The deposition is conformal allowing for flexible introduction of the Ta—N metallic compounds into a CMOS processing flow. Devices processed with TaN or TaSiN show near ideal characteristics.
    Type: Application
    Filed: July 13, 2005
    Publication date: November 10, 2005
    Inventors: Vijay Narayanan, Fenton McFeely, Keith Milkove, John Yurkas, Matthew Copel, Paul Jamison, Roy Carruthers, Cyril Cabral, Edmund Sikorskii, Elizabeth Duch, Alessandro Callegari, Sufi Zafar, Kazuhito Nakamura
  • Publication number: 20050104142
    Abstract: Compounds of Ta and N, potentially including further elements, and with a resistivity below about 20 m?cm and with the elemental ratio of N to Ta greater than about 0.9 are disclosed for use as gate materials in field effect devices. A representative embodiment of such compounds, TaSiN, is stable at typical CMOS processing temperatures on SiO2 containing dielectric layers and high-k dielectric layers, with a workfunction close to that of n-type Si. Metallic Ta—N compounds are deposited by a chemical vapor deposition method using an alkylimidotris(dialkylamido)Ta species, such as tertiaryamylimidotris(dimethylamido)Ta (TAIMATA), as Ta precursor. The deposition is conformal allowing for flexible introduction of the Ta—N metallic compounds into a CMOS processing flow. Devices processed with TaN or TaSiN show near ideal characteristics.
    Type: Application
    Filed: November 13, 2003
    Publication date: May 19, 2005
    Inventors: Vijav Narayanan, Fenton McFeely, Keith Milkove, John Yurkas, Matthew Copel, Paul Jamison, Roy Carruthers, Cyril Cabral, Edmund Sikorskii, Elizabeth Duch, Alessandro Callegari, Sufi Zafar, Kazuhito Nakamura