Patents by Inventor Wilfried E. A. Haensch

Wilfried E. A. Haensch 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: 20150255574
    Abstract: A back end of line device and method for fabricating a transistor device include a substrate having an insulating layer formed thereon and a channel layer formed on the insulating layer. A gate structure is formed on the channel layer. Dopants are implanted into an upper portion of the channel layer on opposite sides of the gate structure to form shallow source and drain regions using a low temperature implantation process. An epitaxial layer is selectively grown on the shallow source and drain regions to form raised regions above the channel layer and against the gate structure using a low temperature plasma enhanced chemical vapor deposition process, wherein low temperature is less than about 400 degrees Celsius.
    Type: Application
    Filed: May 22, 2015
    Publication date: September 10, 2015
    Inventors: WILFRIED E. HAENSCH, BAHMAN HEKMATSHOAR-TABARI, ALI KHAKIFIROOZ, TAK H. NING, GHAVAM G. SHAHIDI, DAVOOD SHAHRJERDI
  • Publication number: 20150243497
    Abstract: A back end of line device and method for fabricating a transistor device include a substrate having an insulating layer formed thereon and a channel layer formed on the insulating layer. A gate structure is formed on the channel layer. Dopants are implanted into an upper portion of the channel layer on opposite sides of the gate structure to form shallow source and drain regions using a low temperature implantation process. An epitaxial layer is selectively grown on the shallow source and drain regions to form raised regions above the channel layer and against the gate structure using a low temperature plasma enhanced chemical vapor deposition process, wherein low temperature is less than about 400 degrees Celsius.
    Type: Application
    Filed: May 8, 2015
    Publication date: August 27, 2015
    Inventors: WILFRIED E. HAENSCH, BAHMAN HEKMATSHOAR-TABARI, ALI KHAKIFIROOZ, TAK H. NING, GHAVAM G. SHAHIDI, DAVOOD SHAHRJERDI
  • Patent number: 9105725
    Abstract: A semiconductor device includes a semiconductor-on-insulator (SOI) substrate having a bulk substrate layer, an active semiconductor layer, and a buried insulator layer interposed between the bulk substrate layer and the active semiconductor layer. A first source/drain (S/D) region includes a first stand-alone butting implant having a first butting width. A second S/D region includes a second stand-alone butting implant having a second butting width. A gate well-region is interposed between the first and second S/D regions. The gate well-region has a gate width that is greater than the first and second butting widths.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: August 11, 2015
    Assignee: International Business Machines Corporation
    Inventors: Dechao Guo, Wilfried E. Haensch, Gan Wang, Xin Wang, Yanfeng Wang, Keith Kwong Hon Wong
  • Publication number: 20150221884
    Abstract: A semiconductor device includes a substrate that extends along a first direction to define a length and second direction perpendicular to the first direction to define a height. The substrate includes a dielectric layer and at least one gate stack formed on the dielectric layer. A source contact is formed adjacent to a first side of the gate stack and a drain contact formed adjacent to an opposing second side of the gate stack. A carbon nanotube is formed on the source contact and the drain contact. A first portion of the nanotube forms a source. A second portion forms a drain. A third portion is interposed between the source and drain to define a gate channel that extends along the first direction. The source and the drain extend along the second direction and have a greater length than the gate channel.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 6, 2015
    Applicant: International Business Machines Corporation
    Inventors: Shu-Jen Han, Wilfried E. Haensch, James B. Hannon
  • Publication number: 20150187897
    Abstract: A gate structure in a semiconductor device includes: a gate stack formed on a substrate with three sections, a bottom portion, a top portion, and a sacrificial cap layer over the top portion; gate spacers, source and drain regions, a nitride encapsulation over top and sidewalls of the gate stack after removal of the sacrificial cap layer, an organic planarizing layer over the nitride encapsulation, planarizing the encapsulation, and silicidation performed over the source and drain regions and the bottom portion after removal of the nitride encapsulation, the organic planarizing layer, and the top portion of the gate stack.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Inventors: Dechao Guo, Wilfried E. Haensch, Shu-jen Han, Daniel J Jaeger, Yu Lu, Keith Kwong Hon Wong
  • Patent number: 9064739
    Abstract: Techniques for quantifying ?Dfin in FINFET technology are provided. In one aspect, a method for quantifying ?Dfin between a pair of long channel FINFET devices includes the steps of: (a) obtaining Vth values for each of the long channel FINFET devices in the pair; (b) determining a ?Vth for the pair of long channel FINFET devices; and (c) using the ?Vth to determine the ?Dfin between the pair of long channel FINFET devices, wherein the ?Vth is a function of a difference in a Qbody and a gate capacitance between the pair of long channel FINFET devices, and wherein the Qbody is a function of Dfin and Nch for each of the long channel FINFET devices in the pair, and as such the ?Vth is proportional to the ?Dfin between the pair of long channel FINFET devices.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: June 23, 2015
    Assignee: International Business Machines Corporation
    Inventors: Wilfried E. A. Haensch, Chung-Hsun Lin, Philip J. Oldiges, Kern Rim
  • Patent number: 9064743
    Abstract: Fabrication methods are disclosed that facilitate the production of electronic structures that are both flexible and stretchable to conform to non-planar (e.g. curved) surfaces without suffering functional damage due to excessive strain. Electronic structures including CMOS devices are provided that can be stretched or squeezed within acceptable limits without failing or breaking. The methods disclosed herein further facilitate the production of flexible, stretchable electronic structures having multiple levels of intra-chip connectors. Such connectors are formed through deposition and photolithographic patterning (back end of the line processing) and can be released following transfer of the electronic structures to flexible substrates.
    Type: Grant
    Filed: November 30, 2014
    Date of Patent: June 23, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Stephen W. Bedell, Wilfried E. Haensch, Bahman Hekmatshoartabari, Ghavam G. Shahidi, Davood Shahrjerdi
  • Patent number: 9059212
    Abstract: A back end of line device and method for fabricating a transistor device include a substrate having an insulating layer formed thereon and a channel layer formed on the insulating layer. A gate structure is formed on the channel layer. Dopants are implanted into an upper portion of the channel layer on opposite sides of the gate structure to form shallow source and drain regions using a low temperature implantation process. An epitaxial layer is selectively grown on the shallow source and drain regions to form raised regions above the channel layer and against the gate structure using a low temperature plasma enhanced chemical vapor deposition process, wherein low temperature is less than about 400 degrees Celsius.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: June 16, 2015
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Wilfried E. Haensch, Bahman Hekmatshoar-Tabari, Ali Khakifirooz, Tak H. Ning, Ghavam G. Shahidi, Davood Shahrjerdi
  • Patent number: 9059291
    Abstract: A semiconductor device includes a semiconductor-on-insulator (SOI) substrate having a bulk substrate layer, an active semiconductor layer, and a buried insulator layer interposed between the bulk substrate layer and the active semiconductor layer. A first source/drain (S/D) region includes a first stand-alone butting implant having a first butting width. A second S/D region includes a second stand-alone butting implant having a second butting width. A gate well-region is interposed between the first and second S/D regions. The gate well-region has a gate width that is greater than the first and second butting widths.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: June 16, 2015
    Assignee: International Business Machines Corporation
    Inventors: Dechao Guo, Wilfried E. Haensch, Gan Wang, Xin Wang, Yanfeng Wang, Keith Kwong Hon Wong
  • Patent number: 9048280
    Abstract: A vertical heterojunction bipolar transistor (HBT) includes doped polysilicon having a doping of a first conductivity type as a wide-gap-emitter with an energy bandgap of about 1.12 eV and doped single crystalline Ge having a doping of the second conductivity type as the base having the energy bandgap of about 0.66 eV. Doped single crystalline Ge having of doping of the first conductivity type is employed as the collector. Because the base and the collector include the same semiconductor material, i.e., Ge, having the same lattice constant, there is no lattice mismatch issue between the collector and the base. Further, because the emitter is polycrystalline and the base is single crystalline, there is no lattice mismatch issue between the base and the emitter.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: June 2, 2015
    Assignee: International Business Machines Corporation
    Inventors: Jin Cai, Kevin K. Chan, Wilfried E. Haensch, Tak H. Ning
  • Patent number: 9041076
    Abstract: A gate structure in a semiconductor device includes: a gate stack formed on a substrate with three sections: a bottom portion, a top portion, and a sacrificial cap layer over the top portion; gate spacers; source and drain regions; a nitride encapsulation over top and sidewalls of the gate stack after removal of the sacrificial cap layer; an organic planarizing layer over the nitride encapsulation, planarizing the encapsulation; and silicidation performed over the source and drain regions and the bottom portion after removal of the nitride encapsulation, the organic planarizing layer, and the top portion of the gate stack.
    Type: Grant
    Filed: February 3, 2013
    Date of Patent: May 26, 2015
    Assignee: International Business Machines Corporation
    Inventors: Dechao Guo, Wilfried E. Haensch, Shu-jen Han, Daniel J Jaeger, Yu Lu, Keith Kwong Hon Wong
  • Publication number: 20150123204
    Abstract: Fabrication methods are disclosed that facilitate the production of electronic structures that are both flexible and stretchable to conform to non-planar (e.g. curved) surfaces without suffering functional damage due to excessive strain. Electronic structures including CMOS devices are provided that can be stretched or squeezed within acceptable limits without failing or breaking. The methods disclosed herein further facilitate the production of flexible, stretchable electronic structures having multiple levels of intra-chip connectors. Such connectors are formed through deposition and photolithographic patterning (back end of the line processing) and can be released following transfer of the electronic structures to flexible substrates.
    Type: Application
    Filed: November 30, 2014
    Publication date: May 7, 2015
    Inventors: Stephen W. Bedell, Wilfried E. Haensch, Bahman Hekmatshoartabari, Ghavam G. Shahidi, Davood Shahrjerdi
  • Publication number: 20150069513
    Abstract: A semiconductor device includes a semiconductor-on-insulator (SOI) substrate having a bulk substrate layer, an active semiconductor layer, and a buried insulator layer interposed between the bulk substrate layer and the active semiconductor layer. A first source/drain (S/D) region includes a first stand-alone butting implant having a first butting width. A second S/D region includes a second stand-alone butting implant having a second butting width. A gate well-region is interposed between the first and second S/D regions. The gate well-region has a gate width that is greater than the first and second butting widths.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Applicant: International Business Machines Corporation
    Inventors: Dechao Guo, Wilfried E. Haensch, Gan Wang, Xin Wang, Yanfeng Wang, Keith Kwong Hon Wong
  • Publication number: 20150072481
    Abstract: A semiconductor device includes a semiconductor-on-insulator (SOI) substrate having a bulk substrate layer, an active semiconductor layer, and a buried insulator layer interposed between the bulk substrate layer and the active semiconductor layer. A first source/drain (S/D) region includes a first stand-alone butting implant having a first butting width. A second S/D region includes a second stand-alone butting implant having a second butting width. A gate well-region is interposed between the first and second S/D regions. The gate well-region has a gate width that is greater than the first and second butting widths.
    Type: Application
    Filed: January 14, 2014
    Publication date: March 12, 2015
    Applicant: International Business Machines Corporation
    Inventors: Dechao Guo, Wilfried E. Haensch, Gan Wang, Xin Wang, Yanfeng Wang, Keith Kwong Hon Wong
  • Patent number: 8969152
    Abstract: A field-effect transistor (FET) and methods for fabricating such. The FET includes a substrate having a crystalline orientation, a source region in the substrate, and a drain region in the substrate. Gate spacers are positioned over the source region and the drain region. The gate spacers include a gate spacer height. A source contact physically and electrically contacts the source region and extends beyond the gate spacer height. A drain contact physically and electrically contacts the drain region and extends beyond the gate spacer height. The source and drain contacts have the same crystalline orientation as the substrate.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: March 3, 2015
    Assignee: International Business Machines Corporation
    Inventors: Kevin K. Chan, Wilfried E. Haensch, Effendi Leobandung, Min Yang
  • Patent number: 8969992
    Abstract: An autonomous integrated circuit (IC) includes a solar cell formed on a bottom substrate of a silicon-on-insulator (SOI) substrate as a handle substrate; an insulating layer of the SOI substrate located on top of the solar cell; and a device layer formed on a top semiconductor layer of the SOI substrate located on top of the insulating layer, wherein a top contact of the device layer is electrically connected to a bottom contact of the solar cell such that the solar cell is enabled to power the device layer.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: March 3, 2015
    Assignee: International Business Machines Corporation
    Inventors: Stephen W. Bedell, Norma E. Sosa Cortes, Wilfried E. Haensch, Steven J. Koester, Devendra K. Sadana, Katherine L. Saenger, Ghavam Shahidi, Davood Shahrjerdi
  • Patent number: 8969187
    Abstract: A method of forming a gate structure with a self-aligned contact is provided and includes sequentially depositing a sacrificial layer and a secondary layer onto poly-Si disposed at a location of the gate structure, encapsulating the sacrificial layer, the secondary layer and the poly-Si, removing the sacrificial layer through openings formed in the secondary layer and forming silicide within at least the space formally occupied by the sacrificial layer.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: March 3, 2015
    Assignee: International Business Machines Corporation
    Inventors: Dechao Guo, Wilfried E. A. Haensch, Shu-Jen Han, Chung-Hsun Lin
  • Patent number: 8940558
    Abstract: Techniques for quantifying ?Dfin in FINFET technology are provided. In one aspect, a method for quantifying ?Dfin between a pair of long channel FINFET devices includes the steps of: (a) obtaining Vth values for each of the long channel FINFET devices in the pair; (b) determining a ?Vth for the pair of long channel FINFET devices; and (c) using the ?Vth to determine the ?Dfin between the pair of long channel FINFET devices, wherein the ?Vth is a function of a difference in a Qbody and a gate capacitance between the pair of long channel FINFET devices, and wherein the Qbody is a function of Dfin and Nch for each of the long channel FINFET devices in the pair, and as such the ?Vth is proportional to the ?Dfin between the pair of long channel FINFET devices.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 27, 2015
    Assignee: International Business Machines Corporation
    Inventors: Wilfried E. A. Haensch, Chung-Hsun Lin, Philip J. Oldiges, Kern Rim
  • Patent number: 8927338
    Abstract: Fabrication methods are disclosed that facilitate the production of electronic structures that are both flexible and stretchable to conform to non-planar (e.g. curved) surfaces without suffering functional damage due to excessive strain. Electronic structures including CMOS devices are provided that can be stretched or squeezed within acceptable limits without failing or breaking. The methods disclosed herein further facilitate the production of flexible, stretchable electronic structures having multiple levels of intra-chip connectors. Such connectors are formed through deposition and photolithographic patterning (back end of the line processing) and can be released following transfer of the electronic structures to flexible substrates.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: January 6, 2015
    Assignee: International Business Machines Corporation
    Inventors: Stephen W. Bedell, Wilfried E. Haensch, Bahman Hekmatshoartabari, Ghavam G. Shahidi, Davood Shahrjerdi
  • Publication number: 20140370681
    Abstract: A field-effect transistor (FET) and methods for fabricating such. The FET includes a substrate having a crystalline orientation, a source region in the substrate, and a drain region in the substrate. Gate spacers are positioned over the source region and the drain region. The gate spacers include a gate spacer height. A source contact physically and electrically contacts the source region and extends beyond the gate spacer height. A drain contact physically and electrically contacts the drain region and extends beyond the gate spacer height. The source and drain contacts have the same crystalline orientation as the substrate.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Inventors: Kevin K. Chan, Wilfried E. Haensch, Effendi Leobandung, Min Yang