Patents by Inventor Peter Rabkin

Peter Rabkin 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: 20220149002
    Abstract: A nucleation suppression layer including a self-assembly material can be formed on a surface of a bonding dielectric layer without depositing the self-assembly material on physically exposed surfaces of first metal bonding pads of a first semiconductor die. Metallic liners including a second metal can be formed on the physically exposed surfaces of the metal bonding pads without depositing the second metal on the nucleation suppression layer. The first semiconductor die is bonded to a second semiconductor die by inducing metal-to-metal bonding between mating pairs of the first metal bonding pads and second metal bonding pads of the second semiconductor die.
    Type: Application
    Filed: November 10, 2020
    Publication date: May 12, 2022
    Inventors: Lin HOU, Peter RABKIN, Yangyin CHEN, Masaaki HIGASHITANI
  • Patent number: 11322509
    Abstract: A memory device includes a silicon-germanium source contact layer, an alternating stack of insulating layers and electrically conductive layers located over the silicon-germanium source contact layer, and a memory stack structure vertically extending through the alternating stack. The memory stack structure comprises a memory film and a vertical semiconductor channel that contacts the memory film. The silicon-germanium source contact layer contacts a cylindrical portion of an outer sidewall of the vertical semiconductor channel. Logic circuits for operating the memory elements may be provided on a substrate within a same semiconductor die, or may be provided in another semiconductor die that is bonded to the semiconductor die containing the memory device.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: May 3, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Ashish Baraskar, Raghuveer S. Makala, Peter Rabkin
  • Patent number: 11302713
    Abstract: A stack including a silicon oxide layer, a germanium-containing layer, and a III-V compound semiconductor layer is formed over a substrate. An alternating stack of insulating layers and spacer material layers is formed over the III-V compound semiconductor layer. The spacer material layers are formed as, or are subsequently replaced with, electrically conductive layers. Memory openings are formed through the alternating stack and into the III-V compound semiconductor layer. Memory opening fill structures including a memory film and a vertical semiconductor channel are formed in the memory openings. The vertical semiconductor channels can include a III-V compound semiconductor channel material that is electrically connected to the III-V compound semiconductor layer. The substrate and at least a portion of the silicon oxide layer can be subsequently detached.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: April 12, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Ashish Kumar Baraskar, Raghuveer S. Makala, Peter Rabkin
  • Patent number: 11296113
    Abstract: A semiconductor structure includes at least one set of vertical field effect transistors embedded within dielectric material layers overlying a substrate. Each vertical field effect transistor includes a bottom doped semiconductor electrode, a vertical transistor channel, a cylindrical gate dielectric, and a top doped semiconductor electrode. A three-dimensional NAND memory array can be provided over the first field effect transistors, and can be electrically connected to the vertical field effect transistors via metal interconnect structures. Alternatively, a three-dimensional NAND memory array can be formed on another substrate, which can be bonded to the substrate via metal-to-metal bonding. The vertical field effect transistors can be employed as switches for bit lines, word lines, or other components of the three-dimensional NAND memory array.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: April 5, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Kwang-Ho Kim, Peter Rabkin
  • Publication number: 20220093555
    Abstract: A method of forming a bonded assembly includes providing a first semiconductor die containing and first metallic bonding structures and a first dielectric capping layer containing openings and contacting distal horizontal surfaces of the first metallic bonding structures, providing a second semiconductor die containing second metallic bonding structures, disposing the second semiconductor die in contact with the first semiconductor die, and annealing the second semiconductor die in contact with the first semiconductor die such that a metallic material of at least one of the first metallic bonding structures and the second metallic bonding structures expands to fill the openings in the first dielectric capping layer to bond at least a first subset of the first metallic bonding structures to at least a first subset of the second metallic bonding structures.
    Type: Application
    Filed: December 6, 2021
    Publication date: March 24, 2022
    Inventors: Lin HOU, Peter RABKIN, Yangyin CHEN, Masaaki HIGASHITANI, Rahul SHARANGPANI
  • Patent number: 11282857
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, and a memory stack structure vertically extending through the alternating stack. The memory stack structure includes a vertical semiconductor channel and a memory film. The vertical semiconductor channel can include a III-V compound semiconductor channel material. A III-V compound substrate semiconductor layer or a III-V compound semiconductor source region can be used to provide low-resistance electrical connection to a bottom end of the vertical semiconductor channel, and a drain region including a graded III-V compound semiconductor material can be used to provide low-resistance electrical connection to a top end of the vertical semiconductor channel.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: March 22, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Ashish Baraskar, Peter Rabkin, Raghuveer S. Makala
  • Patent number: 11276705
    Abstract: A semiconductor structure includes a first semiconductor die containing a recesses, and a second semiconductor die which is embedded in the recess in the first semiconductor die and is bonded to the first semiconductor die.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 15, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Chen Wu, Peter Rabkin, Yangyin Chen, Masaaki Higashitani
  • Patent number: 11270963
    Abstract: A semiconductor die includes a first pad-level dielectric layer embedding first bonding pads and located over a first substrate. Each of the first bonding pads is located within a respective pad cavity in the first pad-level dielectric layer. Each of the first bonding pads includes a first metallic liner containing a first metallic liner material and contacting a sidewall of the respective pad cavity, a first metallic fill material portion embedded in the first metallic liner, and a metallic electromigration barrier layer contacting the first metallic fill material portion and adjoined to the first metallic liner.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: March 8, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Chen Wu, Peter Rabkin, Masaaki Higashitani
  • Publication number: 20220068903
    Abstract: A semiconductor structure includes at least one set of vertical field effect transistors embedded within dielectric material layers overlying a substrate. Each vertical field effect transistor includes a bottom doped semiconductor electrode, a vertical transistor channel, a cylindrical gate dielectric, and a top doped semiconductor electrode. A three-dimensional NAND memory array can be provided over the first field effect transistors, and can be electrically connected to the vertical field effect transistors via metal interconnect structures. Alternatively, a three-dimensional NAND memory array can be formed on another substrate, which can be bonded to the substrate via metal-to-metal bonding. The vertical field effect transistors can be employed as switches for bit lines, word lines, or other components of the three-dimensional NAND memory array.
    Type: Application
    Filed: August 31, 2020
    Publication date: March 3, 2022
    Inventors: Kwang-Ho KIM, Peter RABKIN
  • Publication number: 20220068954
    Abstract: A semiconductor structure includes at least one set of vertical field effect transistors embedded within dielectric material layers overlying a substrate. Each vertical field effect transistor includes a bottom doped semiconductor electrode, a vertical transistor channel, a cylindrical gate dielectric, and a top doped semiconductor electrode. A three-dimensional NAND memory array can be provided over the first field effect transistors, and can be electrically connected to the vertical field effect transistors via metal interconnect structures. Alternatively, a three-dimensional NAND memory array can be formed on another substrate, which can be bonded to the substrate via metal-to-metal bonding. The vertical field effect transistors can be employed as switches for bit lines, word lines, or other components of the three-dimensional NAND memory array.
    Type: Application
    Filed: August 31, 2020
    Publication date: March 3, 2022
    Inventors: Kwang-Ho KIM, Peter RABKIN
  • Publication number: 20220068966
    Abstract: A semiconductor structure includes at least one set of vertical field effect transistors embedded within dielectric material layers overlying a substrate. Each vertical field effect transistor includes a bottom electrode, a metal oxide semiconductor vertical transistor channel, a cylindrical gate dielectric, and a top electrode. A three-dimensional NAND memory array can be provided over the first field effect transistors, and can be electrically connected to the vertical field effect transistors via metal interconnect structures. Alternatively, a three-dimensional NAND memory array can be formed on another substrate, which can be bonded to the substrate via metal-to-metal bonding. The vertical field effect transistors can be employed as switches for bit lines, word lines, or other components of the three-dimensional NAND memory array.
    Type: Application
    Filed: June 29, 2021
    Publication date: March 3, 2022
    Inventors: Peter RABKIN, Masaaki HIGASHITANI
  • Publication number: 20220045088
    Abstract: A memory device can include a strained single-crystalline silicon layer and an alternating stack of insulating layers and electrically conductive layers located over the strained single-crystalline silicon layer. A memory opening fill structure extending through the alternating stack may include an epitaxial silicon-containing pedestal channel portion, and a vertical semiconductor channel, and a vertical stack of memory elements located adjacent to the vertical semiconductor channel Additionally or alternatively, a drain region can include a semiconductor drain portion and a nickel-aluminum-semiconductor alloy drain portion.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 10, 2022
    Inventors: Ashish BARASKAR, Raghuveer S. MAKALA, Peter RABKIN
  • Publication number: 20220045087
    Abstract: A memory device can include a strained single-crystalline silicon layer and an alternating stack of insulating layers and electrically conductive layers located over the strained single-crystalline silicon layer. A memory opening fill structure extending through the alternating stack may include an epitaxial silicon-containing pedestal channel portion, and a vertical semiconductor channel, and a vertical stack of memory elements located adjacent to the vertical semiconductor channel. Additionally or alternatively, a drain region can include a semiconductor drain portion and a nickel-aluminum-semiconductor alloy drain portion.
    Type: Application
    Filed: August 4, 2020
    Publication date: February 10, 2022
    Inventors: Ashish BARASKAR, Raghuveer S. MAKALA, Peter RABKIN
  • Patent number: 11239204
    Abstract: A bonded assembly includes a first die containing first bonding pads having sidewalls that are laterally bonded to sidewalls of second bonding pads of a second die.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: February 1, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Chen Wu, Peter Rabkin, Yangyin Chen, Masaaki Higashitani
  • Publication number: 20210408032
    Abstract: A stack including a silicon oxide layer, a germanium-containing layer, and a III-V compound semiconductor layer is formed over a substrate. An alternating stack of insulating layers and spacer material layers is formed over the III-V compound semiconductor layer. The spacer material layers are formed as, or are subsequently replaced with, electrically conductive layers. Memory openings are formed through the alternating stack and into the III-V compound semiconductor layer. Memory opening fill structures including a memory film and a vertical semiconductor channel are formed in the memory openings. The vertical semiconductor channels can include a III-V compound semiconductor channel material that is electrically connected to the III-V compound semiconductor layer. The substrate and at least a portion of the silicon oxide layer can be subsequently detached.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 30, 2021
    Inventors: Ashish Kumar BARASKAR, Raghuveer S. MAKALA, Peter RABKIN
  • Publication number: 20210408033
    Abstract: A stack including a silicon oxide layer, a germanium-containing layer, and a III-V compound semiconductor layer is formed over a substrate. An alternating stack of insulating layers and spacer material layers is formed over the III-V compound semiconductor layer. The spacer material layers are formed as, or are subsequently replaced with, electrically conductive layers. Memory openings are formed through the alternating stack and into the III-V compound semiconductor layer. Memory opening fill structures including a memory film and a vertical semiconductor channel are formed in the memory openings. The vertical semiconductor channels can include a III-V compound semiconductor channel material that is electrically connected to the III-V compound semiconductor layer. The substrate and at least a portion of the silicon oxide layer can be subsequently detached.
    Type: Application
    Filed: June 25, 2020
    Publication date: December 30, 2021
    Inventors: Ashish Kumar BARASKAR, Raghuveer S. MAKALA, Peter RABKIN
  • Publication number: 20210375908
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, and a memory stack structure vertically extending through the alternating stack. The memory stack structure includes a vertical semiconductor channel and a memory film. The vertical semiconductor channel can include a III-V compound semiconductor channel material. A III-V compound substrate semiconductor layer or a III-V compound semiconductor source region can be used to provide low-resistance electrical connection to a bottom end of the vertical semiconductor channel, and a drain region including a graded III-V compound semiconductor material can be used to provide low-resistance electrical connection to a top end of the vertical semiconductor channel.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Ashish BARASKAR, Peter RABKIN, Raghuveer S. MAKALA
  • Publication number: 20210375909
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, and a memory stack structure vertically extending through the alternating stack. The memory stack structure includes a vertical semiconductor channel and a memory film. The vertical semiconductor channel can include a III-V compound semiconductor channel material. A III-V compound substrate semiconductor layer or a III-V compound semiconductor source region can be used to provide low-resistance electrical connection to a bottom end of the vertical semiconductor channel, and a drain region including a graded III-V compound semiconductor material can be used to provide low-resistance electrical connection to a top end of the vertical semiconductor channel.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Ashish BARASKAR, Peter RABKIN, Raghuveer S. MAKALA
  • Publication number: 20210375910
    Abstract: A three-dimensional memory device includes an alternating stack of insulating layers and electrically conductive layers, and a memory stack structure vertically extending through the alternating stack. The memory stack structure includes a vertical semiconductor channel and a memory film. The vertical semiconductor channel can include a III-V compound semiconductor channel material. A III-V compound substrate semiconductor layer or a III-V compound semiconductor source region can be used to provide low-resistance electrical connection to a bottom end of the vertical semiconductor channel, and a drain region including a graded III-V compound semiconductor material can be used to provide low-resistance electrical connection to a top end of the vertical semiconductor channel.
    Type: Application
    Filed: May 29, 2020
    Publication date: December 2, 2021
    Inventors: Ashish BARASKAR, Peter RABKIN, Raghuveer S. MAKALA
  • Patent number: 11177284
    Abstract: A ferroelectric memory device includes a two-dimensional electron gas channel, a gate electrode, and a ferroelectric element located between the gate electrode and the two-dimensional electron gas channel.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: November 16, 2021
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Peter Rabkin, Masaaki Higashitani, Alan Kalitsov