Patents by Inventor Zhenyu Lu

Zhenyu Lu 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: 10423176
    Abstract: A low-dropout regulator comprises a first switching transistor, a comparator, and a Miller capacitor. The first terminal of the first switching transistor is connected to a load, and the second terminal of the first switching transistor is connected to a power supply voltage. The first input terminal of the comparator is connected to a reference voltage, the second input terminal of the comparator is connected to the first terminal of the first switching transistor, and the output terminal of the comparator is connected to the control terminal of the first switching transistor. The first terminal of the Miller capacitor is connected to the control terminal of the first switching transistor, and the second terminal of the Miller capacitor is connected to the first terminal of the first switching transistor and the load.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: September 24, 2019
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Feng Pan, Zhenyu Lu, Steve Weiyi Yang, Simon Shi-Ning Yang
  • Patent number: 10425548
    Abstract: A multi-function print server administration service implemented on a server computer receives a request, by a user associated with either a vendor-administrator user account or a system administrator account, to modify a first set of one or more application services enabled on one or more multi-function print devices associated with the vendor-administrator user account. In response to receiving the requests, the multi-function print server generates a modified first set of one or more application services, which implements a modification to the one or more application services based on the received request to modify the first set of one or more application services. The multi-function print server administration service enables the modified first set of one or more application services on the one or more multi-function print devices.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: September 24, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Jayasimha Nuggehalli, Bhushan Nadkarni, Srikrishan Narasimhan, Zhenyu Lu
  • Publication number: 20190288002
    Abstract: Some embodiments include apparatuses and methods having multiple decks of memory cells and associated control gates. A method includes forming a first deck having alternating conductor materials and dielectric materials and a hole containing materials extending through the conductor materials and the dielectric materials. The methods can also include forming a sacrificial material in an enlarged portion of the hole and forming a second deck of memory cells over the first deck. Additional apparatuses and methods are described.
    Type: Application
    Filed: May 22, 2019
    Publication date: September 19, 2019
    Inventors: Zhenyu Lu, Roger W. Lindsay, Akira Goda, John Hopkins
  • Patent number: 10403631
    Abstract: Embodiments of three-dimensional (3D) ferroelectric memory devices and methods for forming the ferroelectric memory devices are disclosed. In an example, a 3D ferroelectric memory device includes a substrate and a plurality of ferroelectric memory cells each extending vertically above the substrate. Each of the ferroelectric memory cells includes a capacitor and a transistor electrically connected to the capacitor. The capacitor includes a first electrode, a second electrode, and a ferroelectric layer disposed laterally between the first electrode and the second electrode. The transistor includes a channel structure, a gate conductor, and a gate dielectric layer disposed laterally between the channel structure and the gate conductor.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: September 3, 2019
    Assignee: Wuxi Petabyte Technologies Co., Ltd.
    Inventors: Zhenyu Lu, Yushi Hu, Qian Tao
  • Publication number: 20190244893
    Abstract: Embodiments of three-dimensional (3D) memory devices and methods for forming the 3D memory devices are disclosed. In an example, a NAND memory device includes a substrate, a plurality of NAND strings on the substrate, one or more peripheral devices above the NAND strings, a single crystalline silicon layer above the peripheral devices, and one or more interconnect layers between the peripheral devices and the NAND strings. In some embodiments, the NAND memory device includes a bonding interface at which an array interconnect layer contacts a peripheral interconnect layer.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jifeng ZHU, Zhenyu LU, Jun CHEN, Yushi HU, Qian TAO, Simon Shi-Ning YANG, Steve Weiyi YANG
  • Publication number: 20190244892
    Abstract: Embodiments of source structure of a three-dimensional (3D) memory device and method for forming the source structure of the 3D memory device are disclosed. In an example, a NAND memory device includes a substrate, an alternating conductor/dielectric stack, a NAND string, a source conductor layer, and a source contact. The alternating conductor/dielectric stack includes a plurality of conductor/dielectric pairs above the substrate, The NAND string extends vertically through the alternating conductor/dielectric stack. The source conductor layer is above the alternating conductor/dielectric stack and is in contact with an end of the NAND string. The source contact includes an end in contact with the source conductor layer. The NAND string is electrically connected to the source contact by the source conductor layer. In some embodiments, the source conductor layer includes one or more conduction regions each including one or more of a metal, a metal alloy, and a metal silicide.
    Type: Application
    Filed: April 17, 2019
    Publication date: August 8, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jifeng Zhu, Zhenyu Lu, Jun Chen, Yushi Hu, Qian Tao, Simon Shi-Ning Yang, Steve Weiyi Yang
  • Patent number: 10340287
    Abstract: Some embodiments include apparatuses and methods having multiple decks of memory cells and associated control gates. A method includes forming a first deck having alternating conductor materials and dielectric materials and a hole containing materials extending through the conductor materials and the dielectric materials. The methods can also include forming a sacrificial material in an enlarged portion of the hole and forming a second deck of memory cells over the first deck. Additional apparatuses and methods are described.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: July 2, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Zhenyu Lu, Roger W. Lindsay, Akira Goda, John Hopkins
  • Publication number: 20190164983
    Abstract: Embodiments of source structure of a three-dimensional (3D) memory device and method for forming the source structure of the 3D memory device are disclosed. In an example, a NAND memory device includes a substrate, an alternating conductor/dielectric stack, a NAND string, a source conductor layer, and a source contact. The alternating conductor/dielectric stack includes a plurality of conductor/dielectric pairs above the substrate. The NAND string extends vertically through the alternating conductor/dielectric stack. The source conductor layer is above the alternating conductor/dielectric stack and is in contact with an end of the NAND string. The source contact includes an end in contact with the source conductor layer. The NAND string is electrically connected to the source contact by the source conductor layer. In some embodiments, the source conductor layer includes one or more conduction regions each including one or more of a metal, a metal alloy, and a metal silicide.
    Type: Application
    Filed: December 3, 2018
    Publication date: May 30, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Yushi HU, Zhenyu LU, Qian TAO, Jun CHEN, Simon Shi-Ning YANG, Steve Weiyi YANG
  • Publication number: 20190139982
    Abstract: Embodiments of 3D memory devices and fabricating methods are disclosed. The method can comprise: forming an alternating dielectric stack on a substrate; forming a channel hole penetrating the alternating dielectric stack to expose a surface of the substrate; forming an epitaxial layer on a bottom of the channel hole; forming a functional layer covering a sidewall of the channel hole and a top surface of the epitaxial layer; forming a protecting layer covering the functional layer; removing portions of the functional layer and the protecting layer to form an opening to expose a surface of the epitaxial layer; expanding the opening laterally to increase an exposed area of the epitaxial layer at the bottom of the channel hole; and forming a channel structure on the sidewall of the channel hole and being in electrical contact with the epitaxial layer through the expanded opening.
    Type: Application
    Filed: October 17, 2018
    Publication date: May 9, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Yushi HU, Qian Tao, Haohao Yang, Jin Wen Dong, Jun Chen, Zhenyu Lu
  • Patent number: 10283452
    Abstract: Embodiments of three-dimensional (3D) memory devices and methods for forming the 3D memory devices are disclosed. In an example, a NAND memory device includes a substrate, a plurality of NAND strings on the substrate, one or more peripheral devices above the NAND strings, a single crystalline silicon layer above the peripheral devices, and one or more interconnect layers between the peripheral devices and the NAND strings. In some embodiments, the NAND memory device includes a bonding interface at which an array interconnect layer contacts a peripheral interconnect layer.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: May 7, 2019
    Assignee: Yangtze Memory Technology Co., Ltd.
    Inventors: Jifeng Zhu, Zhenyu Lu, Jun Chen, Yushi Hu, Qian Tao, Simon Shi-Ning Yang, Steve Wiyi Yang
  • Publication number: 20190131315
    Abstract: Methods for forming a string of memory cells, apparatuses having a string of memory cells, and systems are disclosed. One such method for forming a string of memory cells forms a source material over a substrate. A capping material may be formed over the source material. A select gate material may be formed over the capping material. A plurality of charge storage structures may be formed over the select gate material in a plurality of alternating levels of control gate and insulator materials. A first opening may be formed through the plurality of alternating levels of control gate and insulator materials, the select gate material, and the capping material. A channel material may be formed along the sidewall of the first opening. The channel material has a thickness that is less than a width of the first opening, such that a second opening is formed by the semiconductor channel material.
    Type: Application
    Filed: September 17, 2018
    Publication date: May 2, 2019
    Inventors: Jie Sun, Zhenyu Lu, Roger W. Lindsay, Brian Cleereman, John Hopkins, Hongbin Zhu, Fatam Arzum Simsek-Ege, Prasanna Srinivasan, Purnima Narayanan
  • Patent number: 10269620
    Abstract: Contacts to peripheral devices extending through multiple tier structures of a three-dimensional memory device can be formed with minimal additional processing steps. First peripheral via cavities through a first tier structure can be formed concurrently with formation of first memory openings. Sacrificial via fill structures can be formed in the first peripheral via cavities concurrently with formation of sacrificial memory opening fill structures that are formed in the first memory openings. Second peripheral via cavities through a second tier structure can be formed concurrently with formation of word line contact via cavities that extend to top surfaces of electrically conductive layers in the first and second tier structures. After removal of the sacrificial via fill structures, the first and second peripheral via cavities can be filled with a conductive material to form peripheral contact via structures concurrently with formation of word line contact via structures.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: April 23, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Jixin Yu, Zhenyu Lu, Hiroyuki Ogawa, Daxin Mao, Kensuke Yamaguchi, Sung Tae Lee, Yao-sheng Lee, Johann Alsmeier
  • Patent number: 10262063
    Abstract: A computing device hosting a website of a business may be operable to receive a first search input comprising a term submitted via a search bar on the website. Upon performing an internal search for the term with no result, the computing device may output information on the no-result. The computing device may then perform, using one or more external search engines, a search for the term. Search results of the search, performed using the external search engine(s), may be analyzed. Based on a result of the analysis, one or more particular character strings related to the term may be identified. The computing device may generate and store, based on the identifying of the particular character string(s), one or more alternative search suggestions. Upon subsequently receiving an input comprising at least a portion of the term entered in the search bar, the computing device may output the alternative search suggestion(s).
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 16, 2019
    Assignee: SEARS BRANDS, L.L.C.
    Inventors: Rongkai Zhao, Zhenyu Lu, Kenneth Katschke
  • Patent number: 10256248
    Abstract: Lower level metal interconnect structures are formed over a substrate with semiconductor devices thereupon. A semiconductor material layer and an alternating stack of spacer dielectric layers and insulating layers is formed over the lower level metal interconnect structures. An array of memory stack structures is formed through the alternating stack. Trenches are formed through the alternating stack such that a staircase region is located farther away from a threshold lateral distance from the trenches, while neighboring staircase regions are formed within the threshold lateral distance from the trenches. Portions of the spacer dielectric layers proximal to the trenches are replaced with electrically conductive layers, while a remaining portion of the alternating stack is present in the staircase region.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: April 9, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Zhenyu Lu, Jixin Yu, Johann Alsmeier, Fumiaki Toyama, Yuki Mizutani, Hiroyuki Ogawa, Chun Ge, Daxin Mao, Yanli Zhang, Alexander Chu, Yan Li
  • Publication number: 20190103415
    Abstract: A method for forming a 3D memory device is disclosed. The method comprises: forming an alternating conductive/dielectric stack on a substrate; forming a silt vertically penetrating the alternating conductive/dielectric stack; forming an isolation layer on a sidewall of the silt; forming a first conductive layer covering the isolation layer; performing a plasma treatment followed by a first doping process to the first conductive layer; forming a second conductive layer covering the first conductive and filling the slit; performing a second doping process followed by a rapid thermal crystallization process to the second conductive layer; removing an upper portion of the first conductive layer and the second conductive layer to form a recess in the slit; and forming a third conductive layer in the recess.
    Type: Application
    Filed: September 10, 2018
    Publication date: April 4, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Li Hong Xiao, Zhenyu Lu, Qian TAO, Lan YAO
  • Patent number: 10249640
    Abstract: A semiconductor structure includes a memory-level assembly located over a substrate and including at least one alternating stack and memory stack structures vertically extending through the at least one alternating stack. Each of the at least one an alternating stack includes alternating layers of respective insulating layers and respective electrically conductive layers, and each of the electrically conductive layers in the at least one alternating stack includes a respective opening such that a periphery of a respective spacer dielectric portion located in the opening contacts a sidewall of the respective electrically conductive layers. At least one through-memory-level via structure vertically extends through each of the spacer dielectric portions and the insulating layers.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 2, 2019
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Jixin Yu, Zhenyu Lu, Alexander Chu, Kensuke Yamaguchi, Hiroyuki Ogawa, Daxin Mao, Yan LI, Johann Alsmeier
  • Publication number: 20190096810
    Abstract: Embodiments of semiconductor structures including word line contact structures for three-dimensional memory devices and fabrication methods for forming word line contact structures are disclosed. The semiconductor structures include a staircase structure having a plurality of steps, and each step includes a conductive layer disposed over a dielectric layer. The semiconductor structures further include a barrier layer disposed over a portion of the conductive layer of each step. The semiconductor structures also include an etch-stop layer disposed on the barrier layer and an insulating layer disposed on the etch-stop layer. The semiconductor structures also include a plurality of conductive structures formed in the insulating layer and each conductive structure is formed on the conductive layer of each step.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 28, 2019
    Applicant: Yangtze Technologies Co., Ltd.
    Inventors: Jifeng ZHU, Zhenyu LU, Jun CHEN, Si Ping HU, Xiaowang DAI, Lan YAO, Li Hong XIAO, A Man ZHENG, Kun BAO, Haohao YANG
  • Publication number: 20190096901
    Abstract: Various embodiments disclose a 3D memory device, including a substrate; a plurality of conductor layers disposed on the substrate; a plurality of NAND strings disposed on the substrate; and a plurality of slit structures disposed on the substrate. The plurality of NAND strings can be arranged perpendicular to the substrate and in a hexagonal lattice orientation including a plurality of hexagons, and each hexagon including three pairs of sides with a first pair perpendicular to a first direction and parallel to a second direction. The second direction is perpendicular to the first direction. The plurality of slit structures can extend in the first direction.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 28, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Xiaowang DAI, Zhenyu LU, Jun CHEN, Qian TAO, Yushi HU, Jifeng ZHU, Jin Wen DONG, Ji Xia, Zhong ZHANG, Yan Ni LI
  • Publication number: 20190088589
    Abstract: Embodiments of three-dimensional (3D) memory devices and methods for forming the 3D memory devices are disclosed. In an example, a NAND memory device includes a substrate, a plurality of NAND strings on the substrate, one or more peripheral devices above the NAND strings, a single crystalline silicon layer above the peripheral devices, and one or more interconnect layers between the peripheral devices and the NAND strings. In some embodiments, the NAND memory device includes a bonding interface at which an array interconnect layer contacts a peripheral interconnect layer.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 21, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jifeng ZHU, Zhenyu Lu, Jun Chen, Yushi Hu, Qian Tao, Simon Shi-Ning Yang, Steve Wiyi Yang
  • Publication number: 20190081070
    Abstract: A semiconductor structure is disclosed. The semiconductor structure includes a staircase structure disposed over a substrate. The staircase structure includes a plurality of layer stacks, where each layer stack is made of a first material layer over a portion of a second material layer. The staircase structure further includes a plurality of landing pads, where each landing pad is disposed over another portion of the second material layer of a respective layer stack.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 14, 2019
    Applicant: Yangtze Memory Technologies Co., Ltd.
    Inventors: Zhenyu LU, Jun Chen, Xiaowang Dai, Jifeng Zhu, Qian Tao, Yu Ru Huang, Si Ping Hu, Lan Yao, Li Hong Xiao, A Man Zheng, Kun Bao, Haohao Yang