Patents by Inventor Munkang Choi

Munkang Choi 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: 20230023073
    Abstract: An integrated circuit (IC) chip may include a first gate-all-around (GAA) device and a second GAA device. The first GAA device may include a first set of silicon dioxide structures around a first set of silicon channels, a first set of hafnium dioxide structures around the first set of silicon dioxide structures, and a first metal structure around the first set of hafnium dioxide structures. The second GAA device may include a second set of silicon dioxide structures around a second set of silicon channels, and a second metal structure around the second set of silicon dioxide structures. Each silicon dioxide structure in the first set of silicon dioxide structures may have a first thickness. Each silicon dioxide structure in the second set of silicon dioxide structures may have a second thickness, which is greater than the first thickness.
    Type: Application
    Filed: July 21, 2022
    Publication date: January 26, 2023
    Applicant: Synopsys, Inc.
    Inventors: Victor Moroz, Robert B. Lefferts, Xi-Wei Lin, Munkang Choi
  • Patent number: 9379018
    Abstract: Roughly described, an integrated circuit transistor structure has a body of semiconductor material, the body having two longitudinally spaced doped source/drain volumes with a channel between, a gate stack disposed outside the body and facing at least one of the surfaces of the body along the channel. The body contains an adjustment volume, longitudinally within the channel volume and spaced behind the first surface by a first distance and spaced longitudinally from both the source/drain volumes. The adjustment volume comprises an adjustment volume material having, at each longitudinal position, an electrical conductivity which differs from that of the adjacent body material at the same longitudinal position, at least while the transistor is in an off-state. In one embodiment the adjustment volume material is a dielectric. In another embodiment the adjustment volume material is an electrical conductor.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: June 28, 2016
    Assignee: SYNOPSYS, INC.
    Inventors: Munkang Choi, Victor Moroz, Xi-Wei Lin
  • Publication number: 20150041921
    Abstract: Roughly described, an integrated circuit transistor structure has a body of semiconductor material, the body having two longitudinally spaced doped source/drain volumes with a channel between, a gate stack disposed outside the body and facing at least one of the surfaces of the body along the channel. The body contains an adjustment volume, longitudinally within the channel volume and spaced behind the first surface by a first distance and spaced longitudinally from both the source/drain volumes. The adjustment volume comprises an adjustment volume material having, at each longitudinal position, an electrical conductivity which differs from that of the adjacent body material at the same longitudinal position, at least while the transistor is in an off-state. In one embodiment the adjustment volume material is a dielectric. In another embodiment the adjustment volume material is an electrical conductor.
    Type: Application
    Filed: September 19, 2014
    Publication date: February 12, 2015
    Applicant: SYNOPSYS, INC.
    Inventors: Munkang Choi, Victor Moroz, Xi-Wei Lin
  • Patent number: 8869078
    Abstract: Roughly described, the invention includes layouts and masks for an integrated circuit, in which the diffusion shape for a transistor includes a transversely extending jog on one or both transversely opposite sides, the jog having inner and outer corners, at least one of which is located relative to the gate conductor longitudinally such that during lithographic printing of the diffusion shape onto the integrated circuit, the corner will round and extend at least partly into the channel region. The invention also includes aspects for a system and method for introducing such jogs, and for an integrated circuit device having a non-rectangular channel region, the channel region being wider where it meets the source region than at some other longitudinal position under the gate.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 21, 2014
    Assignee: Synopsys, Inc.
    Inventors: Victor Moroz, Munkang Choi, Xi-Wei Lin
  • Patent number: 8847324
    Abstract: Roughly described, an integrated circuit transistor structure has a body of semiconductor material, the body having two longitudinally spaced doped source/drain volumes with a channel between, a gate stack disposed outside the body and facing at least one of the surfaces of the body along the channel. The body contains an adjustment volume, longitudinally within the channel volume and spaced behind the first surface by a first distance and spaced longitudinally from both the source/drain volumes. The adjustment volume comprises an adjustment volume material having, at each longitudinal position, an electrical conductivity which differs from that of the adjacent body material at the same longitudinal position, at least while the transistor is in an off-state. In one embodiment the adjustment volume material is a dielectric. In another embodiment the adjustment volume material is an electrical conductor.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: September 30, 2014
    Assignee: Synopsys, Inc.
    Inventors: Munkang Choi, Victor Moroz, Xi-Wei Lin
  • Publication number: 20140223395
    Abstract: Roughly described, the invention includes layouts and masks for an integrated circuit, in which the diffusion shape for a transistor includes a transversely extending jog on one or both transversely opposite sides, the jog having inner and outer corners, at least one of which is located relative to the gate conductor longitudinally such that during lithographic printing of the diffusion shape onto the integrated circuit, the corner will round and extend at least partly into the channel region. The invention also includes aspects for a system and method for introducing such jogs, and for an integrated circuit device having a non-rectangular channel region, the channel region being wider where it meets the source region than at some other longitudinal position under the gate.
    Type: Application
    Filed: April 9, 2014
    Publication date: August 7, 2014
    Applicant: Synopsys, Inc.
    Inventors: Victor Moroz, Munkang Choi, Xi-Wei Lin
  • Publication number: 20140167174
    Abstract: Roughly described, an integrated circuit transistor structure has a body of semiconductor material, the body having two longitudinally spaced doped source/drain volumes with a channel between, a gate stack disposed outside the body and facing at least one of the surfaces of the body along the channel. The body contains an adjustment volume, longitudinally within the channel volume and spaced behind the first surface by a first distance and spaced longitudinally from both the source/drain volumes. The adjustment volume comprises an adjustment volume material having, at each longitudinal position, an electrical conductivity which differs from that of the adjacent body material at the same longitudinal position, at least while the transistor is in an off-state. In one embodiment the adjustment volume material is a dielectric. In another embodiment the adjustment volume material is an electrical conductor.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Inventors: Munkang Choi, Victor Moroz, Xi-Wei Lin
  • Patent number: 8701054
    Abstract: Roughly described, the invention includes layouts and masks for an integrated circuit, in which the diffusion shape for a transistor includes a transversely extending jog on one or both transversely opposite sides, the jog having inner and outer corners, at least one of which is located relative to the gate conductor longitudinally such that during lithographic printing of the diffusion shape onto the integrated circuit, the corner will round and extend at least partly into the channel region. The invention also includes aspects for a system and method for introducing such jogs, and for an integrated circuit device having a non-rectangular channel region, the channel region being wider where it meets the source region than at some other longitudinal position under the gate.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: April 15, 2014
    Assignee: Synopsys, Inc.
    Inventors: Victor Moroz, Munkang Choi, Xi-Wei Lin
  • Publication number: 20120011479
    Abstract: Roughly described, the invention includes layouts and masks for an integrated circuit, in which the diffusion shape for a transistor includes a transversely extending jog on one or both transversely opposite sides, the jog having inner and outer corners, at least one of which is located relative to the gate conductor longitudinally such that during lithographic printing of the diffusion shape onto the integrated circuit, the corner will round and extend at least partly into the channel region. The invention also includes aspects for a system and method for introducing such jogs, and for an integrated circuit device having a non-rectangular channel region, the channel region being wider where it meets the source region than at some other longitudinal position under the gate.
    Type: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Applicant: SYNOPSYS, INC.
    Inventors: Victor Moroz, Munkang Choi, Xi-Wei Lin
  • Publication number: 20100187609
    Abstract: Roughly described, the invention includes layouts and masks for an integrated circuit, in which the diffusion shape for a transistor includes a transversely extending jog on one or both transversely opposite sides, the jog having inner and outer corners, at least one of which is located relative to the gate conductor longitudinally such that during lithographic printing of the diffusion shape onto the integrated circuit, the corner will round and extend at least partly into the channel region. The invention also includes aspects for a system and method for introducing such jogs, and for an integrated circuit device having a non-rectangular channel region, the channel region being wider where it meets the source region than at some other longitudinal position under the gate.
    Type: Application
    Filed: February 20, 2009
    Publication date: July 29, 2010
    Applicant: SYNOPSYS, INC.
    Inventors: Victor Moroz, Munkang Choi, Xi-Wei Lin