Patents by Inventor Yujun Li

Yujun Li 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: 20140377194
    Abstract: The present invention provides an oral care composition containing (a) a zinc citrate; and (b) a surface-active organophosphate compound. The present invention also relates to a method of preventing a stain from depositing on a tooth surface or other oral surfaces. The present invention further relates to a method of demonstrating stain-proof efficacy of an oral care composition, as well as a demonstration product comprising a substrate coated with hydroxyapatite.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 25, 2014
    Inventors: Ross Strand, Yujun Li, Yiqun Zhang, Xiaoxiao Li
  • Publication number: 20140377315
    Abstract: The present invention provides an oral care composition for encouraging proper tooth cleaning, containing particulate materials which can be breakable under a brushing action with a brushing force from 0.1N to 5N. The particulate materials can have a particle size distribution characterized by (1) a change ratio of mean particle size before and after the brushing action is at least 20%, (2) a change ratio of D90 before and after the brushing action is at least 20%, (3) at least 5% of the particulate materials have a particle size greater than 200 ?m before the brushing action, and (4) no more than 30% of the particulate materials have a particle size greater than 200 ?m after the brushing action. The oral care composition can have a viscosity ranging from 10 to 90 BKU.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 25, 2014
    Inventors: Ross Strand, Yujun Li, Yiqun Zhang, Xiaoxiao Li, Hanbo Bao
  • Publication number: 20140002591
    Abstract: Embodiments of apparatuses, systems, and methods for a temporal hole filling are described. Specifically, an embodiment of the present invention may include a depth-based hole filling process that includes a background modeling technique (SGM). Beneficially, in such an embodiment, holes in the synthesized view may be filled effectively and efficiently.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Applicant: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Sun Wenxiu, Oscar C. Au, Lingfeng Xu, Yujun Li, Wei Hu, Lu Wang
  • Patent number: 8614485
    Abstract: A method of fabricating a plurality of FinFETs on a semiconductor substrate in which the gate width of each individual FinFET is defined utilizing only a single etching process, instead of two or more, is provided. The inventive method results in improved gate width control and less variation of the gate width of each individual gate across the entire surface of the substrate. The inventive method achieves the above by utilizing a modified sidewall image transfer (SIT) process in which an insulating spacer that is later replaced by a gate conductor is employed and a high-density bottom up oxide fill is used to isolate the gate from the substrate.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: December 24, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jochen Beintner, Gary B. Bronner, Ramachandra Divakaruni, Yujun Li
  • Patent number: 7696539
    Abstract: A method of fabrication and a field effect device structure are presented that reduce source/drain capacitance and allow for device body contact. A Si based material pedestal is produced, the top surface and the sidewalls of which are oriented in a way to be substantially parallel with selected crystallographic planes of the pedestal and of a supporting member. The pedestal is wet etched with an anisotropic solution containing ammonium hydroxide. The sidewalls of the pedestal become faceted forming a segment in the pedestal with a reduced cross section. The dopant concentration in the reduced cross section segment is chosen to be sufficiently high for it to provide for electrical continuity through the pedestal.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: April 13, 2010
    Assignee: International Business Machines Corporation
    Inventors: Yujun Li, Kenneth T. Settlemyer, Jr., Jochen Beintner
  • Patent number: 7666741
    Abstract: A method is presented for fabricating a non-planar field effect device. The method includes the production of a Si based material Fin structure that has a top surface substantially in parallel with a {111} crystallographic plane of the Si Fin structure, and the etching of the Si Fin structure with a solution which contains ammonium hydroxide (NH4OH). In this manner, due to differing etch rates in ammonium hydroxide of various Si based material crystallographic planes, the corners on the Fin structure become clipped, and angles between the horizontal and vertical planes of the Fin structure increase. A FinFET device with clipped, or rounded, corners is then fabricated to completion. In a typical embodiment the FinFET device is selected to be a silicon-on-insulator (SOI) device.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: February 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Yujun Li, Kenneth T. Settlemyer, Jr., Jochen Beintner
  • Publication number: 20100015078
    Abstract: Disclosed is a conditioning composition comprising: (a) from about 0.1% to about 10% of a surfactant system comprising: di- and mono-alkyl quaternized ammonium salt cationic surfactants; (b) from about 1% to about 15% of a high melting point fatty compound; (c) from about 0.1 % to about 20% of an aminosilicone; (d) from about 0.0001% to about 10% of a silicone resin; and (e) an aqueous carrier. The composition of the present invention can provide improved wet and dry conditioning benefits while providing chronic/long lasting color protection benefits.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 21, 2010
    Inventor: Yujun Li
  • Publication number: 20090101995
    Abstract: A method of fabricating a plurality of FinFETs on a semiconductor substrate in which the gate width of each individual FinFET is defined utilizing only a single etching process, instead of two or more, is provided. The inventive method results in improved gate width control and less variation of the gate width of each individual gate across the entire surface of the substrate. The inventive method achieves the above by utilizing a modified sidewall image transfer (SIT) process in which an insulating spacer that is later replaced by a gate conductor is employed and a high-density bottom up oxide fill is used to isolate the gate from the substrate.
    Type: Application
    Filed: December 23, 2008
    Publication date: April 23, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jochen Beintner, Gary B. Bronner, Ramachandra Divakaruni, Yujun Li
  • Patent number: 7470570
    Abstract: A method of fabricating a plurality of FinFETs on a semiconductor substrate in which the gate width of each individual FinFET is defined utilizing only a single etching process, instead of two or more, is provided. The inventive method results in improved gate width control and less variation of the gate width of each individual gate across the entire surface of the substrate. The inventive method achieves the above by utilizing a modified sidewall image transfer (SIT) process in which an insulating spacer that is later replaced by a gate conductor is employed and a high-density bottom up oxide fill is used to isolate the gate from the substrate.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: December 30, 2008
    Assignee: International Business Machines Corporation
    Inventors: Jochen Beintner, Gary B. Bronner, Ramachandra Divakaruni, Yujun Li
  • Publication number: 20080246059
    Abstract: A method of fabrication and a field effect device structure are presented that reduce source/drain capacitance and allow for device body contact. A Si based material pedestal is produced, the top surface and the sidewalls of which are oriented in a way to be substantially parallel with selected crystallographic planes of the pedestal and of a supporting member. The pedestal is wet etched with an anisotropic solution containing ammonium hydroxide. The sidewalls of the pedestal become faceted forming a segment in the pedestal with a reduced cross section. The dopant concentration in the reduced cross section segment is chosen to be sufficiently high for it to provide for electrical continuity through the pedestal.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 9, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Yujun Li, Kenneth T. Settlemyer, Jochen Beintner
  • Patent number: 7410844
    Abstract: A method of fabrication and a field effect device structure are presented that reduce source/drain capacitance and allow for device body contact. A Si based material pedestal is produced, the top surface and the sidewalls of which are oriented in a way to be substantially parallel with selected crystallographic planes of the pedestal and of a supporting member. The pedestal is wet etched with an anisotropic solution containing ammonium hydroxide. The sidewalls of the pedestal become faceted forming a segment in the pedestal with a reduced cross section. The dopant concentration in the reduced cross section segment is chosen to be sufficiently high for it to provide for electrical continuity through the pedestal.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: August 12, 2008
    Assignee: International Business Machines Corporation
    Inventors: Yujun Li, Kenneth T. Settlemyer, Jr., Jochen Beintner
  • Publication number: 20080111184
    Abstract: A method of fabricating a plurality of FinFETs on a semiconductor substrate in which the gate width of each individual FinFET is defined utilizing only a single etching process, instead of two or more, is provided. The inventive method results in improved gate width control and less variation of the gate width of each individual gate across the entire surface of the substrate. The inventive method achieves the above by utilizing a modified sidewall image transfer (SIT) process in which an insulating spacer that is later replaced by a gate conductor is employed and a high-density bottom up oxide fill is used to isolate the gate from the substrate.
    Type: Application
    Filed: November 14, 2006
    Publication date: May 15, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jochen Beintner, Gary B. Bronner, Ramachandra Divakaruni, Yujun Li
  • Patent number: 7354822
    Abstract: A vertical pass transistor used in a DRAM cell for maintaining a low total leakage current and providing adequate drive current is described together with a method of fabricating such a device. The transistor gate is engineered in lieu of the channel. The vertical pass transistor for the DRAM cell incorporates two gate materials having different work functions. The gate material near the storage node is n-type doped polysilicon. The gate material near the bit line diffusion is made of silicide or metal having a higher work function than the n-polysilicon. The novel device structure shows several advantages: the channel doping is reduced while maintaining a high Vt and a low sub-threshold leakage current; the carrier mobility improves with the reduced channel doping; the body effect of the device is reduced which improves the write back current; and the sub-threshold swing is reduced because of the low channel doping.
    Type: Grant
    Filed: October 26, 2006
    Date of Patent: April 8, 2008
    Assignee: International Business Machines Corporation
    Inventors: Xiangdong Chen, Geng Wang, Yujun Li, Qiqing C. Ouyang
  • Publication number: 20070298004
    Abstract: Disclosed is a conditioning composition comprising: an asymmetric di-alkyl ammonium salt cationic surfactant; a high melting point fatty compound; and an aqueous carrier. The composition of the present invention can provide improved ease-to-rinse feel while maintaining conditioning benefits.
    Type: Application
    Filed: June 20, 2007
    Publication date: December 27, 2007
    Inventor: Yujun Li
  • Patent number: 7294879
    Abstract: A vertical pass transistor used in a DRAM cell for maintaining a low total leakage current and providing adequate drive current is described together with a method of fabricating such a device. The transistor gate is engineered in lieu of the channel. The vertical pass transistor for the DRAM cell incorporates two gate materials having different work functions. The gate material near the storage node is n-type doped polysilicon. The gate material near the bit line diffusion is made of silicide or metal having a higher work function than the n-polysilicon. The novel device structure shows several advantages: the channel doping is reduced while maintaining a high Vt and a low sub-threshold leakage current; the carrier mobility improves with the reduced channel doping; the body effect of the device is reduced which improves the write back current; and the sub-threshold swing is reduced because of the low channel doping.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: November 13, 2007
    Assignee: International Business Machines Corporation
    Inventors: Xiangdong Chen, Geng Wang, Yujun Li, Qiqing C. Ouyang
  • Publication number: 20070166900
    Abstract: A method of fabrication and a field effect device structure are presented that reduce source/drain capacitance and allow for device body contact. A Si based material pedestal is produced, the top surface and the sidewalls of which are oriented in a way to be substantially parallel with selected crystallographic planes of the pedestal and of a supporting member. The pedestal is wet etched with an anisotropic solution containing ammonium hydroxide. The sidewalls of the pedestal become faceted forming a segment in the pedestal with a reduced cross section. The dopant concentration in the reduced cross section segment is chosen to be sufficiently high for it to provide for electrical continuity through the pedestal.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 19, 2007
    Applicant: International Business Machines Corporation
    Inventors: Yujun Li, Kenneth Settlemyer, Jochen Beintner
  • Publication number: 20070167024
    Abstract: A method is presented for fabricating a non-planar field effect device. The method includes the production of a Si based material Fin structure that has a top surface substantially in parallel with a {111} crystallographic plane of the Si Fin structure, and the etching of the Si Fin structure with a solution which contains ammonium hydroxide (NH4OH). In this manner, due to differing etch rates in ammonium hydroxide of various Si based material crystallographic planes, the corners on the Fin structure become clipped, and angles between the horizontal and vertical planes of the Fin structure increase. A FinFET device with clipped, or rounded, corners is then fabricated to completion. In a typical embodiment the FinFET device is selected to be a silicon-on-insulator (SOI) device.
    Type: Application
    Filed: January 17, 2006
    Publication date: July 19, 2007
    Applicant: International Business Machines Corporation
    Inventors: Yujun Li, Kenneth Settlemyer, Jochen Beintner
  • Publication number: 20070051996
    Abstract: A vertical pass transistor used in a DRAM cell for maintaining a low total leakage current and providing adequate drive current is described together with a method of fabricating such a device. The transistor gate is engineered in lieu of the channel. The vertical pass transistor for the DRAM cell incorporates two gate materials having different work functions. The gate material near the storage node is n-type doped polysilicon. The gate material near the bit line diffusion is made of silicide or metal having a higher work function than the n-polysilicon. The novel device structure shows several advantages: the channel doping is reduced while maintaining a high Vt and a low sub-threshold leakage current; the carrier mobility improves with the reduced channel doping; the body effect of the device is reduced which improves the write back current; and the sub-threshold swing is reduced because of the low channel doping.
    Type: Application
    Filed: October 26, 2006
    Publication date: March 8, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xiangdong Chen, Geng Wang, Yujun Li, Qiqing Ouyang
  • Patent number: 7129564
    Abstract: The structure and method of forming a notched gate MOSFET disclosed herein addresses such problems as device reliability. A gate dielectric (e.g. gate oxide) is formed on the surface of an active area on the semiconductor substrate, preferably defined by an isolation trench region. A layer of polysilicon is then deposited on the gate dielectric. This step is followed by depositing a layer of silicon germanium) (SiGe). The sidewalls of the polysilicon layer are then laterally etched, selective to the SiGe layer to create a notched gate conductor structure, with the SiGe layer being broader than the underlying polysilicon layer. Sidewall spacers are preferably formed on sidewalls of the SiGe layer and the polysilicon layer. A silicide layer is preferably formed as a self-aligned silicide from a polysilicon layer deposited over the SiGe layer, to reduce resistance of the gate conductor. One or more other processing steps (e.g.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: October 31, 2006
    Assignee: International Business Machines Corporation
    Inventors: Jochen Beintner, Yujun Li, Naim Moumen, Porshia Shane Wrschka
  • Publication number: 20060163631
    Abstract: A vertical pass transistor used in a DRAM cell for maintaining a low total leakage current and providing adequate drive current is described together with a method of fabricating such a device. The transistor gate is engineered in lieu of the channel. The vertical pass transistor for the DRAM cell incorporates two gate materials having different work functions. The gate material near the storage node is n-type doped polysilicon. The gate material near the bit line diffusion is made of silicide or metal having a higher work function than the n-polysilicon. The novel device structure shows several advantages: the channel doping is reduced while maintaining a high Vt and a low sub-threshold leakage current; the carrier mobility improves with the reduced channel doping; the body effect of the device is reduced which improves the write back current; and the sub-threshold swing is reduced because of the low channel doping.
    Type: Application
    Filed: July 18, 2003
    Publication date: July 27, 2006
    Applicant: International Business Machines Corporation
    Inventors: Xiangdong Chen, Geng Wang, Yujun Li, Qiqing Ouyang