Patents by Inventor Lei Xue

Lei Xue 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: 9666591
    Abstract: An approach to use silicided bit line contacts that do not short to the underlying substrate in memory devices. The approach provides for silicide formation in the bit line contact area, using a process that benefits from being self-aligned to the oxide-nitride-oxide (ONO) nitride edges. A further benefit of the approach is that the bit line contact implant and rapid temperature anneal process can be eliminated. This approach is applicable to embedded flash, integrating high density devices and advanced logic processes.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: May 30, 2017
    Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    Inventors: Ching-Huang Lu, Simon Siu-Sing Chan, Hidehiko Shiraiwa, Lei Xue
  • Patent number: 9589805
    Abstract: A semiconductor device having a substrate, a dielectric layer over the substrate, a first gate conductor, an inter-gate dielectric structure and a second gate conductor is disclosed. A gate dielectric structure is disposed between the first gate conductor and the dielectric layer, and may include two or more dielectric films disposed in an alternating manner. The inter-gate dielectric structure may be disposed between the first gate conductor and the second gate conductor, and may include two or more dielectric films disposed in an alternating manner. The second gate conductor is formed in an L shape such that the second gate has a relatively low aspect ratio, which allows for a reduction in spacing between adjacent gates, while maintaining the required electrical isolation between the gates and contacts that may subsequently be formed.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: March 7, 2017
    Assignee: Cypress Semiconductor Corporation
    Inventors: Scott Bell, Chun Chen, Lei Xue, Shenqing Fang, Angela T. Hui
  • Patent number: 9588906
    Abstract: Embodiments of the present invention provide a method and apparatus for removing cached data. The method comprises determining activeness of a plurality of divided lists; ranking the plurality of divided lists according to the determined activeness of the plurality of divided lists. The method comprises removing a predetermined amount of cached data from the plurality of divided lists according to the ranking result when the used capacity in the cache area reaches a predetermined threshold. Through embodiments of the present invention, the activeness of each divided list may be used to wholly measure the heat of access to the cached data included by each divided list, and upon removal, the cached data with lower heat of access in the whole system can be removed and the cached data with higher heat of access in the whole system can be retained so as to improve the read/write rate of the system.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: March 7, 2017
    Assignee: EMC IP Holding Company LLC
    Inventors: Xinlei Xu, Yongjun Wu, Lei Xue, Xiongcheng Li, Peng Xie
  • Publication number: 20170062456
    Abstract: A method of forming a vertical non-volatile (NV) memory device such as 3-D NAND flash memory includes forming a vertical NV memory cell string within an opening disposed in a stack of alternating layers of a first layer and a second layer over a substrate, and dividing the vertical NV memory cell string into two halves with a first vertical deep trench and an isolation dielectric pillar formed in the first vertical deep trench, such that memory bit density of the divided vertical NV memory cell strings double the memory bits of the device.
    Type: Application
    Filed: December 11, 2015
    Publication date: March 2, 2017
    Inventors: Rinji Sugino, Scott Bell, Lei Xue
  • Patent number: 9437470
    Abstract: A system and method for providing electrical isolation between closely spaced devices in a high density integrated circuit (IC) are disclosed herein. An integrated circuit (IC) comprising a substrate, a first device, a second device, and a trench in the substrate and a method of fabricating the same are also discussed. The trench is self-aligned between the first and second devices and comprises a first filled portion and a second filled portion. The first fined portion of the trench comprises a dielectric material that forms a buried trench isolation for providing electrical isolation between the first and second devices. The self-aligned placement of the buried trench isolation allows for higher packing density without negatively affecting the operation of closely spaced devices in a high density IC.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: September 6, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ching-Huang Lu, Lei Xue, Kenichi Ohtsuka, Simon Siu-Sing Chan, Rinji Sugino
  • Patent number: 9431503
    Abstract: An integrated circuit comprises a first poly-silicon region including a first poly-silicon layer, a second poly-silicon layer disposed over the first poly-silicon layer, a first poly-silicon finger associated with the first poly-silicon layer, and a second poly-silicon finger associated with the second poly-silicon layer. The first poly-silicon finger and the second poly-silicon finger are oriented in a substantially orthogonal manner relative to each other. The integrated circuit comprises a second poly-silicon gate region including the first poly-silicon layer. The first polysilicon gate region and the second polysilicon gate region each have different poly-silicon gate structures.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: August 30, 2016
    Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    Inventors: Chuan Lin, Hidehiko Shiraiwa, Bradley Marc Davis, Lei Xue, Simon S. Chan, Kenichi Ohtsuka, Angela T. Hui, Scott Allan Bell
  • Publication number: 20160211271
    Abstract: An approach to use silicided bit line contacts that do not short to the underlying substrate in memory devices. The approach provides for silicide formation in the bit line contact area, using a process that benefits from being self-aligned to the oxide-nitride-oxide (ONO) nitride edges. A further benefit of the approach is that the bit line contact implant and rapid temperature anneal process can be eliminated. This approach is applicable to embedded flash, integrating high density devices and advanced logic processes.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 21, 2016
    Inventors: Ching-Huang LU, Simon Siu-Sing CHAN, Hidehiko Shiraiwa, Lei Xue
  • Publication number: 20160211321
    Abstract: A system for providing electrical isolation between closely spaced devices in a high density integrated circuit (IC) is disclosed herein. An integrated circuit (IC) comprises a substrate, a first device, a second device, and an isolator. The isolator is positioned between first and second device. The isolator comprises one or more cavities. The isolator may be filled with dielectric material.
    Type: Application
    Filed: February 1, 2016
    Publication date: July 21, 2016
    Inventors: Rinji Sugino, Lei Xue, Ching-Huang LU, Simon Siu-Sing CHAN
  • Patent number: 9362293
    Abstract: Providing for a non-volatile semiconductor memory architecture that achieves high read performance is described herein. In one aspect, an array of memory transistors arranged electrically in serial is configured to control a gate voltage of a pass transistor. The pass transistor, in turn, enables current flow between two metal bitlines of the semiconductor memory architecture. Accordingly, a relative voltage or relative current of the two metal bitlines can be measured and utilized to determine a program or erase state of a transistor of the serial array of transistors. In a particular aspect, a transistor with small capacitance is chosen for the pass transistor, resulting in a fast correspondence of the pass transistor gate voltage/current relative to transistor array current. This can equate to fast read times for the transistor array, based on differential sensing of the two metal bitlines.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 7, 2016
    Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    Inventors: Hagop Nazarian, Richard Fastow, Lei Xue
  • Publication number: 20160119214
    Abstract: It is described an information processing method and device. It is received a request for service data from a client device. In response to the request for service data, it is sent at least two probing packets which contain the service data to the client device on a forward path which is from a server to the client device. It is obtained timing information, which includes: a time stamp corresponding to the service data, a time stamp corresponding to the request for the service data, and time stamps corresponding to at least two backward-path packets sent by the client device on a backward path, the backward path being from the client device to the server. It is determined according to the timing information a one-way path metric.
    Type: Application
    Filed: March 27, 2015
    Publication date: April 28, 2016
    Inventors: Xiapu Luo, Jingang Hou, Zhiwei Liu, Xianneng Zou, Juhong Wang, Lei Xue, Yajuan Tang, Weigang Wu
  • Publication number: 20160105453
    Abstract: It is described a network attack detection method. A topology analysis on network is conducted to obtain a probing path set containing at least one probing path. A first probing path contained in the probing path set is probed by using a probing pattern to obtain a performance metric of the first probing path. It is determined whether the first probing path is subjected to network attack according to the performance metric and a control performance metric.
    Type: Application
    Filed: April 16, 2015
    Publication date: April 14, 2016
    Inventors: Lei Xue, Zhiwei Liu, Xianneng Zou, Jingang Hou, Xiapu Luo, Edmond W. W Chan, Pei Tu, Yuru Shao
  • Publication number: 20160035576
    Abstract: A semiconductor device having a substrate, a dielectric layer over the substrate, a first gate conductor, an inter-gate dielectric structure and a second gate conductor is disclosed. A gate dielectric structure is disposed between the first gate conductor and the dielectric layer, and may include two or more dielectric films disposed in an alternating manner. The inter-gate dielectric structure may be disposed between the first gate conductor and the second gate conductor, and may include two or more dielectric films disposed in an alternating manner. The second gate conductor is formed in an L shape such that the second gate has a relatively low aspect ratio, which allows for a reduction in spacing between adjacent gates, while maintaining the required electrical isolation between the gates and contacts that may subsequently be formed.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 4, 2016
    Inventors: Scott BELL, Chun CHEN, Lei XUE, Shenqing FANG, Angela HUI
  • Patent number: 9252026
    Abstract: A system and method for providing electrical isolation between closely spaced devices in a high density integrated circuit (IC) are disclosed herein. An integrated circuit (IC) comprising a substrate, a first device, a second device, and a buried trench in the substrate and a method of fabricating the same are also discussed. The buried trench is positioned between first and second devices and may be filled with dielectric material. Alternatively, the buried trench contains air. A method of using Hydrogen annealing to create the buried trench is disclosed.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: February 2, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Rinji Sugino, Lei Xue, Ching-Huang Lu, Simon Chan
  • Patent number: 9252154
    Abstract: An approach to use silicided bit line contacts that do not short to the underlying substrate in memory devices. The approach provides for silicide formation in the bit line contact area, using a process that benefits from being self-aligned to the oxide-nitride-oxide (ONO) nitride edges. A further benefit of the approach is that the bit line contact implant and rapid temperature anneal process can be eliminated. This approach is applicable to embedded flash, integrating high density devices and advanced logic processes.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: February 2, 2016
    Assignee: CYPRESS SEMICONDUCTOR CORPORATION
    Inventors: Ching-Huang Lu, Simon Siu-Sing Chan, Hidehiko Shiraiwa, Lei Xue
  • Patent number: 9245895
    Abstract: Memory devices having improved TPD characteristics and methods of making the memory devices are provided. The memory devices contain two or more memory cells on a semiconductor substrate and bit line openings containing a bit line dielectric between the memory cells. The memory cell contains a charge storage layer and a first poly gate. The bit line opening extends into the semiconductor substrate. By containing the bit line dielectric in the bit line openings that extend into the semiconductor substrate, the memory device can improve the electrical isolation between memory cells, thereby preventing and/or mitigating TPD.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: January 26, 2016
    Assignee: Cypress Semiconductor Corporation
    Inventors: Ning Cheng, Kuo-Tung Chang, Hiro Kinoshita, Chih-Yuh Yang, Lei Xue, Chungho Lee, Minghao Shen, Angela Hui, Huaqiang Wu
  • Patent number: 9153596
    Abstract: Semiconductor devices having reduced parasitic current and methods of malting the semiconductor devices are provided. Further provided are memory devices having reduced adjacent wordline disturb. The memory devices contain wordlines formed over a semiconductor substrate, wherein at least one wordline space is formed between the wordlines. Adjacent wordline disturb is reduced by implanting one or more of indium, boron, and a combination of boron and indium in the surface of the at least one wordline space.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: October 6, 2015
    Assignee: Cypress Semiconductor Corporation
    Inventors: Gulzar A. Kathawala, Zhizheng Liu, Kuo Tung Chang, Lei Xue
  • Publication number: 20150262838
    Abstract: A system and method for providing electrical isolation between closely spaced devices in a high density integrated circuit (IC) are disclosed herein. An integrated circuit (IC) comprising a substrate, a first device, a second device, and a buried trench in the substrate and a method of fabricating the same are also discussed. The buried trench is positioned between first and second devices and may be filled with dielectric material. Alternatively, the buried trench contains air. A method of using Hydrogen annealing to create the buried trench is disclosed.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 17, 2015
    Applicant: Spansion LLC
    Inventors: Rinji Sugino, Lei Xue, Ching-Huang Lu, Simon Chan
  • Publication number: 20150178213
    Abstract: Embodiments of the present disclosure relate to methods and apparatuses for data copy avoidance where after a data access request is received from the first storage node, what is sent by a second storage node to the first storage node is not an address of a second storage space in a second mirrored cache, but an address of a first storage space in a first cache corresponding to the second storage space. In this way, data access may be implemented directly in the first cache on the first storage node, and can reduce data communication across different storage nodes, eliminate potential system performance bottlenecks, and enhance data access performance.
    Type: Application
    Filed: December 17, 2014
    Publication date: June 25, 2015
    Inventors: Ruiyong Jia, Lei Xue, Long Zhang, Jian Gao, Peng Xie, Huibing Xiao, Zhipeng Hu
  • Publication number: 20150179656
    Abstract: Providing for a non-volatile semiconductor memory architecture that achieves high read performance is described herein. In one aspect, an array of memory transistors arranged electrically in serial is configured to control a gate voltage of a pass transistor. The pass transistor, in turn, enables current flow between two metal bitlines of the semiconductor memory architecture. Accordingly, a relative voltage or relative current of the two metal bitlines can be measured and utilized to determine a program or erase state of a transistor of the serial array of transistors. In a particular aspect, a transistor with small capacitance is chosen for the pass transistor, resulting in a fast correspondence of the pass transistor gate voltage/current relative to transistor array current. This can equate to fast read times for the transistor array, based on differential sensing of the two metal bitlines.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 25, 2015
    Applicant: Spansion LLC
    Inventors: Hagop Nazarian, Richard Fastow, Lei Xue
  • Publication number: 20150097224
    Abstract: A system and method for providing electrical isolation between closely spaced devices in a high density integrated circuit (IC) are disclosed herein. An integrated circuit (IC) comprising a substrate, a first device, a second device, and a trench in the substrate and a method of fabricating the same are also discussed. The trench is positioned between first and second devices and comprises a first filled portion and a second filled portion. The first filled portion of the trench comprises a dielectric material that forms a buried trench isolation for providing electrical isolation between the first and second devices.
    Type: Application
    Filed: October 8, 2013
    Publication date: April 9, 2015
    Applicant: Spansion LLC
    Inventors: Lei XUE, Ching-Huang LU, Simon Siu-Sing CHAN