Patents by Inventor Miao Xu

Miao Xu 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: 20140235493
    Abstract: A muitimode gas sensor platform (100) can comprise an array of electrode pairs (108) oriented on a substrate (102) and a plurality of detection zones (104), wherein at least a portion of individual electrode pairs (106) are separately addressable. Each detection zone (104) can comprise at least one set of individual electrode pairs (106) within the array, where the individual electrode pairs (106) have organic nanofibers (108) uniformly deposited thereon. The organic nanofibers (108) can be responsive to association with a corresponding target material and at least one detection zone (104) can be electronically responsive to the corresponding target material.
    Type: Application
    Filed: September 19, 2012
    Publication date: August 21, 2014
    Inventors: Ling Zang, Benjamin Bunes, Miao Xu
  • Patent number: 8716799
    Abstract: The present application discloses a MOSFET and a method for manufacturing the same, wherein the MOSFET comprises: an SOI wafer, which comprises a semiconductor substrate, a buried insulator layer, and a semiconductor layer, the buried insulator layer being disposed on the semiconductor substrate, and the semiconductor layer being disposed on the buried insulator layer; a gate stack, which is disposed on the semiconductor layer; a source region and a drain region, which are disposed in the semiconductor layer and on opposite sides of the gate stack; and a channel region, which are disposed in the semiconductor layer and sandwiched by the source region and the drain region, wherein the MOSFET further comprises a back gate disposed in the semiconductor substrate, and wherein the back gate comprises first, second and third compensation doping regions, the first compensation doping region is disposed under the source region and the drain region; the second compensation doping region extends in a direction away fro
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: May 6, 2014
    Assignee: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Miao Xu, Qingqing Liang
  • Publication number: 20130099315
    Abstract: The present disclosure discloses a MOSFET and a method for manufacturing the same, wherein the MOSFET comprises: an SOI wafer which comprises a semiconductor substrate, a buried insulating layer, and a semiconductor layer, the buried insulating layer being on the semiconductor substrate, and the semiconductor layer being on the buried insulating layer; a gate stack on the semiconductor layer; a source region and a drain region, which are in the semiconductor layer and on opposite sides of the gate stack; and a channel region, which is in the semiconductor layer and sandwiched by the source region and the drain region, wherein the MOSFET further comprises a back gate, the back gate being located in the semiconductor substrate and having a first doped region in a lower portion of the back gate and a second doped region in an upper portion of the back gate. The MOSFET can adjust the threshold voltage by changing the doping type and doping concentration of the anti-doped region.
    Type: Application
    Filed: November 18, 2011
    Publication date: April 25, 2013
    Inventors: Huilong Zhu, Miao Xu, Qingqing Liang
  • Publication number: 20130049092
    Abstract: The present application discloses a semiconductor device comprising a source region and a drain region in an ultra-thin semiconductor layer; a channel region between the source region and the drain region in the ultra-thin semiconductor layer; a front gate stack above the channel region, the front gate comprising a front gate and a front gate dielectric between the front gate and the channel region; and a back gate stack below the channel region, the back gate stack comprising a back gate and a back gate dielectric between the back gate and the channel region, wherein the front gate is made of a high-Vt material, and the back gate is made of a low-Vt material. According to another embodiment, the front gate and the back gate are made of the same material, and the back gate is applied with a forward bias voltage during operation. The semiconductor device alleviates threshold voltage fluctuation due to varied thickness of the channel region by means of the back gate.
    Type: Application
    Filed: November 18, 2011
    Publication date: February 28, 2013
    Inventors: Qingqing Liang, Miao Xu, Huilong Zhu, Huicai Zhong
  • Publication number: 20130001665
    Abstract: The present disclosure discloses a MOSFET and a method for manufacturing the same, wherein the MOSFET comprises: an SOI wafer comprising a semiconductor substrate, a buried insulating layer, and a semiconductor layer, the buried insulating layer being disposed on the semiconductor substrate, and the semiconductor layer being disposed on the buried insulating layer; a gate stack disposed on the semiconductor layer; a source region and a drain region embedded in the semiconductor layer and disposed on both sides of the gate stack; and a channel region embedded in the semiconductor layer and sandwiched between the source region and the drain region, wherein the MOSFET further comprises a back gate and a counter doped region, and wherein the back gate is embedded in the semiconductor substrate, the counter doped region is disposed under the channel region and embedded in the back gate, and the back gate has a doping type opposite to that of the counter doped region.
    Type: Application
    Filed: August 2, 2011
    Publication date: January 3, 2013
    Inventors: Huilong Zhu, Miao Xu, Qingqing Liang
  • Publication number: 20120326231
    Abstract: The present application discloses a MOSFET and a method for manufacturing the same, wherein the MOSFET comprises: an SOI wafer, which comprises a semiconductor substrate, a buried insulator layer, and a semiconductor layer, the buried insulator layer being disposed on the semiconductor substrate, and the semiconductor layer being disposed on the buried insulator layer; a gate stack, which is disposed on the semiconductor layer; a source region and a drain region, which are disposed in the semiconductor layer and on opposite sides of the gate stack; and a channel region, which are disposed in the semiconductor layer and sandwiched by the source region and the drain region, wherein the MOSFET further comprises a back gate disposed in the semiconductor substrate, and wherein the back gate comprises first, second and third compensation doping regions, the first compensation doping region is disposed under the source region and the drain region; the second compensation doping region extends in a direction away fro
    Type: Application
    Filed: August 1, 2011
    Publication date: December 27, 2012
    Inventors: Huilong Zhu, Miao Xu, Qingqing Liang
  • Publication number: 20120139044
    Abstract: The present application discloses a MOSFET and a method for manufacturing the same.
    Type: Application
    Filed: August 12, 2011
    Publication date: June 7, 2012
    Applicant: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Miao Xu, Qingqing Liang
  • Publication number: 20120139048
    Abstract: The present application discloses a MOSFET and a method for manufacturing the same. The MOSFET comprises an SOI chip comprising a semiconductor substrate, a buried insulating layer on the semiconductor substrate, and a semiconductor layer on the buried insulating layer; source/drain regions formed in the semiconductor layer; a channel region formed in the semiconductor layer and located between the source/drain regions; and a gate stack comprising a gate dielectric layer on the semiconductor layer, and a gate conductor on the gate dielectric layer, wherein the MOSFET further comprises a backgate formed in a portion of the semiconductor substrate below the channel region, and the backgate has a non-uniform doping profile, and wherein the buried insulating layer serves as a gate dielectric layer of the backgate. The MOSFET has an adjustable threshold voltage by changing the type of dopant and/or the doping profile in the backgate, and reduces a leakage current of the semiconductor device.
    Type: Application
    Filed: March 4, 2011
    Publication date: June 7, 2012
    Applicant: Institute of Microelectronics, Chinese Academy of Sciences
    Inventors: Huilong Zhu, Miao Xu, Qingqing Liang
  • Publication number: 20060029620
    Abstract: The present invention is about a mycobacterium smegmatis vaccine, a split product of mycobacterium smegmatis. This vaccine has made good use of the adjuvant function of bacterial cellwall and antigenic specificity of tropina which can stimulate the production of cytokine and consists of many immunologically competent CpG fragments of bacteria DNA. Such vaccine is prepared by treating newly-cultured thalli with a physical quassation technique. This vaccine is capable of enhancing normal immune function against TB, promoting the recovery of normal immune function in TB patients with hypofunction, and depressing the immunological responses in TB patients with hyperfunction. It is especially effective in the prevention and treatment of MTB carriers.
    Type: Application
    Filed: August 5, 2004
    Publication date: February 9, 2006
    Inventors: Guozhi Wang, Miao Xu, Baowen Chen, Xiaobing Shen, Cheng Su, Maoxiang Wang, Yuhe Yin, Yujie Ma
  • Patent number: 6196242
    Abstract: A hanging sun umbrella includes a column; an umbrella frame including a hanging arm; a movable hanging arm holder for movably attaching the hanging arm to the column; a pull arm extending from the column above the hanging arm holder, wherein the hanging arm, the hanging arm holder, and the pull arm provide a cantilevered shape to the umbrella frame; a crank lift provided on the column to move the movable hanging arm holder up and down along the column for opening and closing the umbrella; and an umbrella cloth fitted on the umbrella frame.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: March 6, 2001
    Inventor: Zhen Miao Xu