Patents by Inventor Peter G. Tolchinsky

Peter G. Tolchinsky 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: 20100148153
    Abstract: A group III-V material device has a delta-doped region below a channel region. This may improve the performance of the device by reducing the distance between the gate and the channel region.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Inventors: Mantu K. Hudait, Peter G. Tolchinsky, Robert S. Chau, Marko Radosavljevic, Ravi Pillarisetty, Aaron A. Budrevich
  • Patent number: 7687799
    Abstract: Methods and associated structures of forming a microelectronic device are described. Those methods may include forming a GaSb nucleation layer on a substrate, forming a Ga(Al)AsSb buffer layer on the GaSb nucleation layer, forming an In0.52Al0.48As bottom barrier layer on the Ga(Al)AsSb buffer layer, and forming a graded InxAl1-xAs layer on the In0.52Al0.48As bottom barrier layer thus enabling the fabrication of low defect, device grade InGaAs based quantum well structures.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: March 30, 2010
    Assignee: Intel Corporation
    Inventors: Mantu K. Hudait, Peter G. Tolchinsky, Loren A. Chow, Dmitri Loubychev, Joel M. Fastenau, Amy W. K. Liu
  • Publication number: 20090315018
    Abstract: Methods and associated structures of forming a microelectronic device are described. Those methods may include forming a GaSb nucleation layer on a substrate, forming a Ga(Al)AsSb buffer layer on the GaSb nucleation layer, forming an In0.52Al0.48As bottom barrier layer on the Ga(Al)AsSb buffer layer, and forming a graded InxAl1-xAs layer on the In0.52Al0.48As bottom barrier layer thus enabling the fabrication of low defect, device grade InGaAs based quantum well structures.
    Type: Application
    Filed: June 19, 2008
    Publication date: December 24, 2009
    Inventors: Mantu K. Hudait, Peter G. Tolchinsky, Loren A. Chow, Dmitri Loubychev, Joel M. Fastenau, Amy W.K. Liu
  • Publication number: 20090218596
    Abstract: Various embodiments provide a buffer layer that is grown over a silicon substrate that provides desirable device isolation for devices formed relative to III-V material device layers, such as InSb-based devices, as well as bulk thin film grown on a silicon substrate. In addition, the buffer layer can mitigate parallel conduction issues between transistor devices and the silicon substrate. In addition, the buffer layer addresses and mitigates lattice mismatches between the film relative to which the transistor is formed and the silicon substrate.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 3, 2009
    Inventors: Mantu K. Hudait, Mohamad A. Shaheen, Loren A. Chow, Peter G. Tolchinsky, Joel M. Fastenau, Dmitri Loubychev, Amy W. K. Liu
  • Publication number: 20090206324
    Abstract: Dislocation removal from a group III-V film grown on a semiconductor substrate is generally described. In one example, an apparatus includes a semiconductor substrate, a buffer film including a group III-V semiconductor material epitaxially coupled to the semiconductor substrate wherein the buffer film includes material melted by laser pulse irradiation and recrystallized to substantially remove dislocations or defects from the buffer film, and a first semiconductor film epitaxially grown on the buffer film wherein a lattice mismatch exists between the semiconductor substrate and the first semiconductor film.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 20, 2009
    Inventors: Mantu K. Hudait, Peter G. Tolchinsky, Jack T. Kavalieros, Marko Radosavljevic
  • Patent number: 7573059
    Abstract: A device grade III-V quantum well structure formed on a silicon substrate using a composite buffer architecture and the method of manufacture is described. Embodiments of the present invention enable III-V InSb quantum well device layers with defect densities below 1×108 cm?2 to be formed on silicon substrates. In an embodiment of the present invention, an InSb quantum well layer is sandwiched between two larger band gap barrier layers. In an embodiment of the present invention, InSb quantum well layer is strained. In a specific embodiment, the two larger band gap barrier layers are graded.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: August 11, 2009
    Assignee: Intel Corporation
    Inventors: Mantu K. Hudait, Mohamad A. Shaheen, Loren A. Chow, Peter G. Tolchinsky, Dmitri Loubychev, Joel M. Fastenau, Amy W. K. Liu
  • Publication number: 20090096025
    Abstract: Embodiments of a silicon-on-insulator (SOI) wafer having an etch stop layer overlying the buried oxide layer, as well as embodiments of a method of making the same, are disclosed. The etch stop layer may comprise silicon nitride, nitrogen-doped silicon dioxide, or silicon oxynitride, as well as some combination of these materials. Other embodiments are described and claimed.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 16, 2009
    Inventors: Peter G. Tolchinsky, Martin D. Giles, Michael L. McSwiney, Mohamad Shaheen, Irwin Yablok
  • Publication number: 20090071918
    Abstract: A vertical semiconductor wafer carrier comprises a circular base, a first wafer support rod mounted at a first position proximate a perimeter of the circular base, a second wafer support rod mounted at a second position proximate the perimeter of the circular base, wherein an angle ?12 formed between the first position and the second position relative to a center of the circular base is around 20°, a third wafer support rod mounted at a third position proximate the perimeter of the circular base, and a fourth wafer support rod mounted at a fourth position proximate the perimeter of the circular base, wherein an angle ?34 formed between the third position and the fourth position relative to the center of the circular base is around 20°, and wherein an angle ?14 formed between the first and fourth positions relative to the center of the circular base is around 180°.
    Type: Application
    Filed: September 18, 2007
    Publication date: March 19, 2009
    Inventors: Panchapakesan Ramanarayanan, Karson Knutson, Peter G. Tolchinsky, Christopher Parker
  • Publication number: 20090057648
    Abstract: The present disclosure provides an apparatus and method for implementing a high hole mobility p-channel Germanium (“Ge”) transistor structure on a Silicon (“Si”) substrate. One exemplary apparatus may include a buffer layer including a GaAs nucleation layer, a first GaAs buffer layer, and a second GaAs buffer layer. The exemplary apparatus may further include a bottom barrier on the second GaAs buffer layer and having a band gap greater than 1.1 eV, a Ge active channel layer on the bottom barrier and having a valence band offset relative to the bottom barrier that is greater than 0.3 eV, and an AlAs top barrier on the Ge active channel layer wherein the AlAs top barrier has a band gap greater than 1.1 eV. Of course, many alternatives, variations and modifications are possible without departing from this embodiment.
    Type: Application
    Filed: August 30, 2007
    Publication date: March 5, 2009
    Applicant: INTEL CORPORATION
    Inventors: Mantu K. Hudait, Suman Datta, Jack T. Kavalieros, Peter G. Tolchinsky
  • Patent number: 7494911
    Abstract: Various embodiments proved a buffer layer that is grown over a silicon substrate that provides desirable isolation for devices formed relative to III-V material device layers, such as InSb-based devices, as well as bulk thin film grown on a silicon substrate. In addition, the buffer layer can mitigate parallel conduction issues between transistor devices and the silicon substrate. In addition, the buffer layer addresses and mitigates lattice mismatches between the film relative to which the transistor is formed and the silicon substrate.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: February 24, 2009
    Assignee: Intel Corporation
    Inventors: Mantu K. Hudait, Mohamad A. Shaheen, Loren A. Chow, Peter G. Tolchinsky, Joel M. Fastenau, Dmitri Loubychev, Amy W. K. Liu
  • Patent number: 7491988
    Abstract: A semiconductor transistor structure with increased mobility in the channel zone and a method of its fabrication are described. A semiconductor substrate having a first dopant is formed. A diffusion barrier layer having a second dopant is formed on the semiconductor substrate to suppress outdiffusion of the first dopant. Next, a semiconductor layer having substantially low dopant concentration relative to the first layer is epitaxially grown on the diffusion barrier layer. The semiconductor layer defines a channel in the semiconductor transistor structure. The low dopant concentration in the semiconductor layer increases the mobility of the carriers in the channel of the semiconductor transistor structure. A gate electrode and a gate dielectric are formed on the semiconductor layer with the low dopant concentration.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: February 17, 2009
    Assignee: Intel Corporation
    Inventors: Peter G. Tolchinsky, Mark Bohr, Irwin Yablok
  • Patent number: 7473614
    Abstract: Embodiments of a silicon-on-insulator (SOI) wafer having an etch stop layer overlying the buried oxide layer, as well as embodiments of a method of making the same, are disclosed. The etch stop layer may comprise silicon nitride, nitrogen-doped silicon dioxide, or silicon oxynitride, as well as some combination of these materials. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: January 6, 2009
    Assignee: Intel Corporation
    Inventors: Peter G. Tolchinsky, Martin D. Giles, Michael L. McSwiney, Mohamad Shaheen, Irwin Yablok
  • Patent number: 7378331
    Abstract: A method and article to provide a three-dimensional (3-D) IC wafer process flow. In some embodiments, the method and article include bonding a device layer of a multilayer wafer to a device layer of another multilayer wafer to form a bonded pair of device layers, each of the multilayer wafers including a layer of silicon on a layer of porous silicon (SiOPSi) on a silicon substrate where the device layer is formed in the silicon layer, separating the bonded pair of device layers from one of the silicon substrates by splitting one of the porous silicon layers, and separating the bonded pair of device layers from the remaining silicon substrate by splitting the other one of the porous silicon layers to provide a vertically stacked wafer.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: May 27, 2008
    Assignee: Intel Corporation
    Inventors: Mohamad Shaheen, Peter G. Tolchinsky, Irwin Yablok, Scott R. List
  • Publication number: 20080073639
    Abstract: A device grade III-V quantum well structure formed on a silicon substrate using a composite buffer architechture and the method of manufacture is described. Embodiments of the present invention enable III-V InSb quantum well device layers with defect densities below 1×108 cm?2 to be formed on silicon substrates. In an embodiment of the present invention, an InSb quantum well layer is sandwiched between two larger band gap barrier layers. In an embodiment of the present invention, InSb quantum well layer is strained. In a specific embodiment, the two larger band gap barrier layers are graded.
    Type: Application
    Filed: August 2, 2006
    Publication date: March 27, 2008
    Inventors: Mantu K. Hudait, Mohamad A. Shaheen, Loren A. Chow, Peter G. Tolchinsky, Dmitri Loubychev, Joel M. Fastenau, Amy W.K. Liu
  • Publication number: 20080076235
    Abstract: Various embodiments proved a buffer layer that is grown over a silicon substrate that provides desirable isolation for devices formed relative to III-V material device layers, such as InSb-based devices, as well as bulk thin film grown on a silicon substrate. In addition, the buffer layer can mitigate parallel conduction issues between transistor devices and the silicon substrate. In addition, the buffer layer addresses and mitigates lattice mismatches between the film relative to which the transistor is formed and the silicon substrate.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 27, 2008
    Inventors: Mantu K. Hudait, Mohamad A. Shaheen, Loren A. Chow, Peter G. Tolchinsky, Joel M. Fastenau, Dmitri Loubychev, Amy W. K. Liu
  • Publication number: 20080032478
    Abstract: A stacking fault and twin blocking barrier for forming a III-V device layer on a silicon substrate and the method of manufacture is described. Embodiments of the present invention enable III-V InSb device layers with defect densities below 1×108 cm?2 to be formed on silicon substrates. In an embodiment of the present invention, a buffer layer is positioned between a III-V device layer and a silicon substrate to glide dislocations. In an embodiment of the present invention, GaSb buffer layer is selected on the basis of lattice constant, band gap, and melting point to prevent many lattice defects from propagating out of the buffer into the III-V device layer. In a specific embodiment, a III-V InSb device layer is formed directly on the GaSb buffer.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 7, 2008
    Inventors: Mantu K. Hudait, Mohamad A. Shaheen, Loren A. Chow, Peter G. Tolchinsky, Joel M. Fastenau, Dmitri Loubychev, Amy W.K. Liu
  • Patent number: 6924543
    Abstract: A method and apparatus for a semiconductor device having increased electrical carrier mobility is described. That method and apparatus comprises forming two recesses within a substrate, and providing a material within the two recesses. The material has a predetermined coefficient of thermal expansion (CTE) to facilitate introduction of a predetermined strain within the substrate in a location between the two recesses. Also described is a semiconductor device that comprises a substrate having two recesses formed therein, and a material disposed within the two recesses. The material has a predetermined coefficient of thermal expansion (CTE) to facilitate introduction of a predetermined strain within the substrate in a location between the two recesses.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: August 2, 2005
    Assignee: Intel Corporation
    Inventors: Peter G. Tolchinsky, Irwin Yablok
  • Patent number: 6911380
    Abstract: A method is provided for fabricating an SOI water. This may involve forming a silicon substrate and implanting oxygen into the substrate. Damaged portions of the implanted silicon may be healed/cured by CMP or anneal, for example. An epi layer may then be deposited over the healed/cured regions of the substrate. The substrate may then be annealed to form an insulative layer. The wafer may be thinned to provide the proper thickness of the epi layer.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: June 28, 2005
    Assignee: Intel Corporation
    Inventors: Peter G. Tolchinsky, Irwin Yablok, Mohamad A. Shaheen
  • Publication number: 20040251480
    Abstract: A method and apparatus for a semiconductor device having increased electrical carrier mobility is described. That method and apparatus comprises forming two recesses within a substrate, and providing a material within the two recesses. The material has a predetermined coefficient of thermal expansion (CTE) to facilitate introduction of a predetermined strain within the substrate in a location between the two recesses. Also described is a semiconductor device that comprises a substrate having two recesses formed therein, and a material disposed within the two recesses. The material has a predetermined coefficient of thermal expansion (CTE) to facilitate introduction of a predetermined strain within the substrate in a location between the two recesses.
    Type: Application
    Filed: June 16, 2003
    Publication date: December 16, 2004
    Inventors: Peter G. Tolchinsky, Irwin Yablok
  • Publication number: 20040014302
    Abstract: A method is provided for fabricating an SOI water. This may involve forming a silicon substrate and implanting oxygen into the substrate. Damaged portions of the implanted silicon may be healed/cured by CMP or anneal, for example. An epi layer may then be deposited over the healed/cured regions of the substrate. The substrate may then be annealed to form an insulative layer. The wafer may be thinned to provide the proper thickness of the epi layer.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 22, 2004
    Inventors: Peter G. Tolchinsky, Irwin Yablok, Mohamad A. Shaheen