Patents by Inventor Hongmei Wang

Hongmei Wang 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).

  • Patent number: 7767514
    Abstract: The invention includes methods of forming channel region implants for two transistor devices simultaneously, in which a mask is utilized to block a larger percentage of a channel region location of one of the devices relative to the other. The invention also pertains to methods of forming capacitor structures in which a first capacitor electrode is spaced from a semiconductor substrate by a dielectric material, a second capacitor electrode comprises a conductively-doped diffusion region within the semiconductor material, and a capacitor channel region location is beneath the dielectric material and adjacent the conductively-doped diffusion region. An implant mask is formed to cover only a first portion of the capacitor channel region location and to leave a second portion of the capacitor channel region location uncovered. While the implant mask is in place, dopant is implanted into the uncovered second portion of the capacitor channel region location.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: August 3, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Kurt D. Beigel, Fred D. Fishburn, Rongsheng Yang
  • Patent number: 7674670
    Abstract: The invention includes methods of forming channel region implants for two transistor devices simultaneously, in which a mask is utilized to block a larger percentage of a channel region location of one of the devices relative to the other. The invention also pertains to methods of forming capacitor structures in which a first capacitor electrode is spaced from a semiconductor substrate by a dielectric material, a second capacitor electrode comprises a conductively-doped diffusion region within the semiconductor material, and a capacitor channel region location is beneath the dielectric material and adjacent the conductively-doped diffusion region. An implant mask is formed to cover only a first portion of the capacitor channel region location and to leave a second portion of the capacitor channel region location uncovered. While the implant mask is in place, dopant is implanted into the uncovered second portion of the capacitor channel region location.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: March 9, 2010
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Kurt D. Beigel, Fred D. Fishburn, Rongsheng Yang
  • Publication number: 20100057287
    Abstract: A method for determining a crash condition of a vehicle comprises the step of sensing crash acceleration in a first direction substantially parallel to a front-to-rear axis of the vehicle and providing a first acceleration signal indicative thereof. The method also comprises the step of sensing crash acceleration in a second direction substantially parallel to a side-to-side axis of the vehicle and near opposite sides of the vehicle and providing second acceleration signals indicative thereof. The method further comprises the steps of determining a transverse crash value functionally related to the second acceleration signals and comparing the determined transverse crash value against a safing threshold. The method still further comprises the step of determining a crash condition of the vehicle in response to (a) the comparison and (b) the first acceleration signal.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 4, 2010
    Inventors: CHEK-PENG FOO, TONGTONG WANG COUTURE, QUANBO XU, WEI LIU, XIAOLIANG CHENG, HONGMEI WANG, YUEYI HUANG, YAN WANG
  • Patent number: 7667234
    Abstract: A memory array having decreased cell sizes and having transistors with increased channel widths. More specifically, pillars are formed in a substrate such that sidewalls are exposed. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a polysilicon layer to form a channel through the pillars. The current path through the channel is approximately equal to twice the height of the pillar plus the width of the pillar. The pillars are patterned to form non-linear active area lines having angled segments. The polysilicon layer is patterned to form word lines that intersect the active area lines at the angled segments.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: February 23, 2010
    Assignee: Micron Technology, Inc
    Inventors: Hongmei Wang, Chandra Mouli, Luan Tran
  • Patent number: 7638392
    Abstract: The invention includes methods of forming channel region implants for two transistor devices simultaneously, in which a mask is utilized to block a larger percentage of a channel region location of one of the devices relative to the other. The invention also pertains to methods of forming capacitor structures in which a first capacitor electrode is spaced from a semiconductor substrate by a dielectric material, a second capacitor electrode comprises a conductively-doped diffusion region within the semiconductor material, and a capacitor channel region location is beneath the dielectric material and adjacent the conductively-doped diffusion region. An implant mask is formed to cover only a first portion of the capacitor channel region location and to leave a second portion of the capacitor channel region location uncovered. While the implant mask is in place, dopant is implanted into the uncovered second portion of the capacitor channel region location.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: December 29, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Kurt D. Beigel, Fred D. Fishburn, Rongsheng Yang
  • Publication number: 20090176338
    Abstract: A fully-depleted (FD) Silicon-on-Insulator (SOI) MOSFET access transistor comprising a gate electrode of a conductivity type which is opposite the conductivity type of the source/drain regions and a method of fabrication are disclosed.
    Type: Application
    Filed: March 10, 2009
    Publication date: July 9, 2009
    Inventors: Hongmei Wang, John K. Zahurak
  • Patent number: 7517743
    Abstract: A fully-depleted (FD) Silicon-on-Insulator (SOI) MOSFET access transistor comprising a gate electrode of a conductivity type which is opposite the conductivity type of the source/drain regions and a method of fabrication are disclosed.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: April 14, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, John K. Zahurak
  • Patent number: 7465999
    Abstract: A fully-depleted (FD) Silicon-on-Insulator (SOI) MOSFET access transistor comprising a gate electrode of a conductivity type which is opposite the conductivity type of the source/drain regions and a method of fabrication are disclosed.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: December 16, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, John K. Zahurak
  • Patent number: 7442600
    Abstract: The invention includes methods of forming channel region implants for two transistor devices simultaneously, in which a mask is utilized to block a larger percentage of a channel region location of one of the devices relative to the other. The invention also pertains to methods of forming capacitor structures in which a first capacitor electrode is spaced from a semiconductor substrate by a dielectric material, a second capacitor electrode comprises a conductively-doped diffusion region within the semiconductor material, and a capacitor channel region location is beneath the dielectric material and adjacent the conductively-doped diffusion region. An implant mask is formed to cover only a first portion of the capacitor channel region location and to leave a second portion of the capacitor channel region location uncovered. While the implant mask is in place, dopant is implanted into the uncovered second portion of the capacitor channel region location.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: October 28, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Kurt D. Beigel, Fred D. Fishburn, Rongsheng Yang
  • Patent number: 7440255
    Abstract: A capacitor construction includes a first electrode and a layer between the first electrode and a surface supporting the capacitor construction. The capacitor construction can exhibit a lower RC time constant compared to an otherwise identical capacitor construction lacking the layer. Alternatively, or additionally, the first electrode may contain Si and the layer may limit the Si from contributing to formation of metal silicide material between the first electrode and the supporting surface. The layer may be a nitride layer and may be conductive or insulative. When conductive, the layer may exhibit a first conductivity greater than a second conductivity of the first electrode. The capacitor construction may be used in memory devices.
    Type: Grant
    Filed: July 21, 2003
    Date of Patent: October 21, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Brent A. McClure, Casey R. Kurth, Shenlin Chen, Debra K. Gould, Lyle D. Breiner, Er-Xuan Ping, Fred D. Fishburn, Hongmei Wang
  • Patent number: 7383463
    Abstract: For disaster recovery of a file server at an active site, the files that define the user environment of the file server are replicated to a virtual server at a disaster recovery site. To switch over user access from the active site to the disaster recovery site, the disaster recovery system determines whether there are sufficient network interfaces and file system mounts at the disaster recovery site. If so, the required resources are reserved, and user access is switched over. If not, an operator is given a list of missing resources or discrepancies, and a choice of termination or forced failover. Interruptions during the failover can be avoided by maintaining a copy of user mappings and a copy of session information at the disaster recovery site, and keeping alive client-server connections and re-directing client requests from the active site to the disaster recovery site.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: June 3, 2008
    Assignee: EMC Corporation
    Inventors: John M Hayden, Hongmei Wang, Frederic Corniquet, Philippe Armangau, Pascal Donette, Aju John
  • Patent number: 7332767
    Abstract: A memory device having decreased cell size and having transistors with increased channel widths. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a conductive layer to form a channel through the pillars. The current path through the channel is approximately equal to twice the height of the pillar plus the width of the pillar. The pillars are patterned to form non-linear active area lines having angled segments. The conductive layer is patterned to from word lines that intersect the active area lines at the angled segments.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: February 19, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Chandra Mouli, Luan Tran
  • Patent number: 7329618
    Abstract: An ion implanting method includes forming a pair of spaced and adjacent features projecting outwardly from a substrate. At least outermost portions of the pair of spaced features are laterally pulled away from one another with a patterned photoresist layer received over the features and which has an opening therein received intermediate the pair of spaced features. While such spaced features are laterally pulled, a species is ion implanted into substrate material which is received lower than the pair of spaced features. After the ion implanting, the patterned photoresist layer is removed from the substrate. Other aspects and implementations are contemplated.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: February 12, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Randall Culver, Terrence B. McDaniel, Hongmei Wang, James L. Dale, Richard H. Lane, Fred D. Fishburn
  • Publication number: 20070241395
    Abstract: A memory array having decreased cell sizes and having transistors with increased channel widths. More specifically, pillars are formed in a substrate such that sidewalls are exposed. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a polysilicon layer to form a channel through the pillars. The current path through the channel is approximately equal to twice the height of the pillar plus the width of the pillar. The pillars are patterned to form non-linear active area lines having angled segments. The polysilicon layer is patterned to form word lines that intersect the active area lines at the angled segments.
    Type: Application
    Filed: June 11, 2007
    Publication date: October 18, 2007
    Inventors: Hongmei Wang, Chandra Mouli, Luan Tran
  • Patent number: 7253493
    Abstract: A memory device having decreased cell size and having transistors with increased channel widths. More specifically, pillars are formed in a substrate such that sidewalls are exposed. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a polysilicon layer to form a channel through the pillars. The current path through the channel is approximately equal to twice the height of the pillar plus the width of the pillar. The pillars are patterned to form non-linear active area lines having angled segments. The polysilicon layer is patterned to from word lines that intersect the active area lines at the angled segments.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: August 7, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Chandra Mouli, Luan Tran
  • Patent number: 7230343
    Abstract: A memory array having decreased cell sizes and having transistors with increased channel widths. More specifically, pillars are formed in a substrate such that sidewalls are exposed. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a polysilicon layer to form a channel through the pillars. The current path through the channel is approximately equal to twice the height of the pillar plus the width of the pillar. The pillars are patterned to form non-linear active area lines having angled segments. The polysilicon layer is patterned to form word lines that intersect the active area lines at the angled segments.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: June 12, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Chandra Mouli, Luan Tran
  • Patent number: 7224020
    Abstract: An integrated circuit device having non-linear active area pillars. More specifically, pillars are formed in a substrate such that sidewalls are exposed. The sidewalls of the pillars and the top surface of the pillars are covered with a gate oxide and a conductive layer to form a channel through the pillars. The pillars are patterned to form non-linear active area lines having angled segments. The conductive layer is patterned to form word lines that intersect the active area lines at the angled segments.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: May 29, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, Chandra Mouli, Luan Tran
  • Publication number: 20070117347
    Abstract: The invention includes methods of forming isolation regions. An opening can be formed to extend into a semiconductor material, and an upper periphery of the opening can be protected with a liner while a lower periphery is unlined. The unlined portion can then be etched to form a widened region of the opening. Subsequently, the opening can be filled with insulative material to form an isolation region. Transistor devices can then be formed on opposing sides of the isolation region, and electrically isolated from one another with the isolation region. The invention also includes semiconductor constructions containing an electrically insulative isolation structure extending into a semiconductor material, with the structure having a bulbous bottom region and a stem region extending upwardly from the bottom region to a surface of the semiconductor material.
    Type: Application
    Filed: January 17, 2007
    Publication date: May 24, 2007
    Inventors: Hongmei Wang, Fred Fishburn, Janos Fucsko, T. Allen, Richard Lane, Robert Hanson, Kevin Shea
  • Patent number: 7189606
    Abstract: A fully-depleted (FD) Silicon-on-Insulator (SOI) MOSFET access transistor comprising a gate electrode of a conductivity type which is opposite the conductivity type of the source/drain regions and a method of fabrication are disclosed.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: March 13, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Hongmei Wang, John K. Zahurak
  • Publication number: 20070045742
    Abstract: A fully-depleted (FD) Silicon-on-Insulator (SOI) MOSFET access transistor comprising a gate electrode of a conductivity type which is opposite the conductivity type of the source/drain regions and a method of fabrication are disclosed.
    Type: Application
    Filed: October 27, 2006
    Publication date: March 1, 2007
    Inventors: Hongmei Wang, John Zahurak