Including Field-effect Component (epo) Patents (Class 257/E27.081)

  • Patent number: 12185537
    Abstract: Some embodiments include an integrated structure having a conductive material, a select device gate material over the conductive material, and vertically-stacked conductive levels over the select device gate material. Vertically-extending monolithic channel material is adjacent the select device gate material and the conductive levels. The monolithic channel material contains a lower segment adjacent the select device gate material and an upper segment adjacent the conductive levels. A first vertically-extending region is between the lower segment of the monolithic channel material and the select device gate material. The first vertically-extending region contains a first material. A second vertically-extending region is between the upper segment of the monolithic channel material and the conductive levels. The second vertically-extending region contains a material which is different in composition from the first material.
    Type: Grant
    Filed: July 18, 2021
    Date of Patent: December 31, 2024
    Assignee: Micron Technology, Inc.
    Inventors: Justin B. Dorhout, David Daycock, Kunal R. Parekh, Martin C. Roberts, Yushi Hu
  • Patent number: 12160988
    Abstract: The present application discloses a semiconductor device and a method for fabricating the semiconductor device. The method includes providing a substrate including an array area and a peripheral area adjacent to the array area, forming word line structures and source/drain regions in the array area, and a word line protection layer on the array area, forming a first hard mask layer over the substrate and having a step height adjacent to a border between the array area and the peripheral area, forming a bit line contact in the array area and between the word line structures by using the first hard mask layer as a pattern guide, and forming a gate electrode layer on the peripheral area.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: December 3, 2024
    Assignee: NANYA TECHNOLOGY CORPORATION
    Inventor: Chun-Chi Lai
  • Patent number: 12120870
    Abstract: According to one embodiment, a semiconductor device includes a first region including a memory cell and a second region including a peripheral circuit. The second region includes a diffusion region provided on a surface of the semiconductor layer, a gate insulating film provided on the diffusion region, a gate electrode provided on the gate insulating film, an insulator layer provided on the diffusion region and surrounding the gate electrode, and an element isolation that is embedded in the semiconductor layer and surrounds the diffusion region. The element isolation includes a first region that is recessed below the surface of the diffusion region and a second region that is between the diffusion region and the first region and includes a protrusion protruding to a level higher than the first region.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: October 15, 2024
    Assignee: Kioxia Corporation
    Inventor: Kohei Nakagami
  • Patent number: 12089405
    Abstract: Embodiments of three-dimensional (3D) memory devices and methods for forming the same are disclosed. In an example, a 3D memory device includes a substrate and a channel structure extending vertically above the substrate and having a plum blossom shape including a plurality of petals in a plan view. The channel structure includes a plurality of semiconductor channels in the plurality of petals, respectively.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: September 10, 2024
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Wanbo Geng, Lei Xue, Xiaoxin Liu, Tingting Gao, Weihua Cheng
  • Patent number: 12082411
    Abstract: Embodiments of 3D memory devices and methods for forming the same are disclosed. In an example, a 3D memory device includes a substrate, a memory stack including interleaved conductive layers and dielectric layers above the substrate, a plurality of channel structures each extending vertically through the memory stack, a semiconductor layer above and in contact with the plurality of channel structures, a plurality of source contacts above the memory stack and in contact with the semiconductor layer, a plurality of contacts through the semiconductor layer, and a backside interconnect layer above the semiconductor layer including a source line mesh in a plan view. The plurality of source contacts are distributed below and in contact with the source line mesh. A first set of the plurality of contacts are distributed below and in contact with the source line mesh.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: September 3, 2024
    Assignee: YANGTZE MEMORY TECHNOLOGIES CO., LTD.
    Inventors: Kun Zhang, Zhong Zhang, Lei Liu, Wenxi Zhou, Zhiliang Xia
  • Patent number: 12058869
    Abstract: The present disclosure provides a semiconductor structure, including a first layer including a logic device, a second layer over the first layer including a first type memory device, and a though silicon via (TSV) electrically connecting the logic device and the first type memory device.
    Type: Grant
    Filed: June 10, 2022
    Date of Patent: August 6, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Bo-Feng Young, Han-Jong Chia, Sai-Hooi Yeong, Yu-Ming Lin, Chung-Te Lin
  • Patent number: 12051687
    Abstract: An electrostatic discharge (ESD) protection device, incudes an N-type well and a P-type well formed in a semiconductor substrate; a first N-type diffusion region and a first P-type diffusion region formed in the N-type well, separated by a first separation film, and each connected to an Anode terminal; a second N-type diffusion region and a second P-type diffusion region formed in the P-type well, separated by a second separation film, and each connected to a Cathode terminal; a P-type floating region, formed in the P-type well, spaced apart from the second N-type diffusion region and the second P-type diffusion region; and a non-sal layer covering the P-type floating region.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: July 30, 2024
    Assignee: SK keyfoundry Inc.
    Inventor: Jong Ho Nam
  • Patent number: 12046596
    Abstract: The invention provides a method for forming a semiconductor structure, which comprises providing a substrate, sequentially a first groove and a second groove are formed in the substrate, the depth of the first groove is different from the depth of the second groove, a first oxide layer is formed in the first groove, a second oxide layer is formed in the second groove, an etching step is performed to remove part of the first oxide layer, a first gate structure is formed on the first oxide layer, and a second gate structure is formed on the second oxide layer.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: July 23, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wei-Lun Huang, Chia-Ling Wang, Chia-Wen Lu, Ping-Hung Chiang
  • Patent number: 12040413
    Abstract: The present application discloses a semi-floating gate memory device, which is a double control gate semi-floating gate memory device with a high-K/metal gate and a silicon oxide/polysilicon gate. A control gate epitaxial silicon layer, a source region and a drain region are formed by an epitaxial growth structure, separate source and drain ion implantation is not needed, the mask required for source and drain ion implantation is saved, and the fabrication cost is low. The present application further discloses a method for fabricating the semi-floating gate memory device.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: July 16, 2024
    Assignee: Shanghai Huali Integrated Circuit Corporation
    Inventors: Heng Liu, Zhigang Yang, Jianghua Leng, Tianpeng Guan
  • Patent number: 12027193
    Abstract: A memory device may include: a memory bank comprising a plurality of memory blocks, each divided into a normal area and a row hammer area, a command control circuit suitable for performing an access operation on the normal area in response to an active command, an internal command generation circuit suitable for generating an internal command in response to a precharge command, a target address generation circuit suitable for saving a count for each logic level combination of a received address in the row hammer area by performing an access operation on the row hammer area in response to the internal command, and setting an address corresponding to the count as a target address when the count satisfies a preset condition, and a refresh control circuit suitable for controlling a smart refresh operation on the target address.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: July 2, 2024
    Assignee: SK hynix Inc.
    Inventors: Byeong Yong Go, Woongrae Kim, Hoiju Chung, Saeng Hwan Kim, Yoonna Oh, Chul Moon Jung
  • Patent number: 12021046
    Abstract: A method of manufacturing a redistribution layer includes: forming an insulating layer on a wafer, delimited by a top surface and a bottom surface in contact with the wafer; forming a conductive body above the top surface of the insulating layer; forming a first coating region extending around and above the conductive body, in contact with the conductive body, and in contact with the top surface of the insulating layer in correspondence of a bottom surface of the first coating region; applying a thermal treatment to the wafer in order to modify a residual stress of the first coating region, forming a gap between the bottom surface of the first coating region and the top surface of the insulating layer; forming, after applying the thermal treatment, a second coating region extending around and above the first coating region, filling said gap and completely sealing the first coating region.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: June 25, 2024
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Paolo Colpani, Samuele Sciarrillo, Ivan Venegoni, Francesco Maria Pipia, Simone Bossi, Carmela Cupeta
  • Patent number: 11985833
    Abstract: A memory includes a memory cell including a planar electrode in a first plane; a floating electrode in a second plane, parallel to the first plane; a vertical electrode. The planar electrode includes a first part facing a first part of the floating electrode, the first part of the planar electrode and the first part of the second electrode being separated by a first layer of a first active material, the vertical electrode includes a part facing a second part of the floating electrode, the first part of the vertical electrode and the second part of the floating electrode being separated by a second layer of a second active material. The first active material forms a selector or a memory point and the second active material forms a memory point or a selector. The planar and floating electrodes not sharing any plane parallel to the first or second plane.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: May 14, 2024
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Khalil El Hajjam
  • Patent number: 11968832
    Abstract: Methods and structures of a three-dimensional memory device are disclosed. In an example, the disclosed method comprises forming a plurality of dielectric stacks stacked on one another over a substrate to create a multiple-stack staircase structure. Each one of the plurality of dielectric stacks comprises a plurality of dielectric pairs arranged along a direction perpendicular to a top surface of the substrate. The method further comprises forming a filling structure that surrounds the multiple-stack staircase structure, forming a semiconductor channel extending through the multiple-staircase structure, wherein the semiconductor channel comprises unaligned sidewall surfaces, and forming a supporting pillar extending through at least one of the multiple-staircase structure and the filling structure, wherein the supporting pillar comprises aligned sidewall surfaces.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: April 23, 2024
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jun Liu, Zongliang Huo, Li Hong Xiao, Zhenyu Lu, Qian Tao, Yushi Hu, Sizhe Li, Zhao Hui Tang, Yu Ting Zhou, Zhaosong Li
  • Patent number: 11961560
    Abstract: An integrated circuit device includes a peripheral circuit structure including a lower substrate, an arc protection diode in the lower substrate, and a common source line driver connected to the arc protection diode, a conductive plate on the peripheral circuit structure, a cell array structure overlapping the peripheral circuit structure in a vertical direction with the conductive plate therebetween, and a first wiring structure connected between the arc protection diode and the conductive plate.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: April 16, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myunghun Lee, Sangwan Nam, Taemin Ok
  • Patent number: 11955524
    Abstract: The present application discloses a semi-floating gate device. A floating gate structure covers a selected area of a first well region and is used to form a conductive channel. The floating gate structure further covers a surface of a lightly doped drain region, and a floating gate material layer and the lightly doped drain region contact at a dielectric layer window to form a PN structure. A source region is self-aligned with a first side surface of the floating gate structure. A first control gate is superposed on a top of the floating gate structure. A second control gate is disposed on a surface of the lightly doped drain region between the drain region and a second side surface of the floating gate structure. The first control gate and the second control gate are isolated by an inter-gate dielectric layer.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: April 9, 2024
    Assignee: Shanghai Huali Integrated Circuit Corporation
    Inventors: Heng Liu, Jianghua Leng, Zhigang Yang, Tianpeng Guan
  • Patent number: 11955184
    Abstract: Technology is disclosed herein for a memory system that compensates for different programming speeds in two sets of memory cells when reading those two sets of memory cells. The memory system programs a group of the memory cells to one or more data states. In one aspect, the memory cells are not verified during programming. The group has a first set of memory cells that program at a first speed and a second set of memory cells that program at a second speed. The memory system reads the first set of the memory cells with a first set of read parameters and reads the second set of the memory cells with a second set of read parameters. The first set of read parameters are different from the second set of read parameters to compensate for the different programming speeds.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: April 9, 2024
    Assignee: SanDisk Technologies LLC
    Inventors: Jiacen Guo, Xiaochen Zhu, Xiang Yang, Lito De La Rama, Yi Song, Jiahui Yuan
  • Patent number: 11956952
    Abstract: A device, including: a first structure including first memory cells, the first memory cells including first transistors; and a second structure including second memory cells, the second memory cells including second transistors, where the second transistors overlay the first transistors, and a plurality of memory cells control lines, where the first transistors are self-aligned to the second transistors, where a second transistor channel of the second transistors is aligned to a first transistor channel of the first transistors, the aligned is at an atomic level as would have been resulted from an epitaxial growth process.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 9, 2024
    Assignee: Monolithic 3D Inc.
    Inventors: Zvi Or-Bach, Jin-Woo Han
  • Patent number: 11956957
    Abstract: A semiconductor memory device includes a first stacked structure, a first supporter layer, a second stacked structure, a block cut structure, and a second supporter layer on the second stacked structure and separated by a second cut pattern. The first stacked structure includes a first and second stack, the second stacked structure includes a third stack separated by the block cut structure and a fourth stack, the first supporter layer is on the first stack and the second stack, the second supporter layer is on the third stack and the fourth stack, the first cut pattern includes a first connection on the block cut structure and connecting the first supporter layer and the second stack, and the second cut pattern of the second supporter layer includes a second connection on the block cut structure and connecting the second supporter layer placed on the third stack and the fourth stack.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: April 9, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Young Kim, Woo Sung Yang, Sung-Min Hwang, Suk Kang Sung, Joon-Sung Lim
  • Patent number: 11942145
    Abstract: The present disclosure describes a method for memory cell placement. The method can include placing a memory cell region in a layout area and placing a well pick-up region and a first power supply routing region along a first side of the memory cell region. The method also includes placing a second power supply routing region and a bitline jumper routing region along a second side of the memory cell region, where the second side is on an opposite side to that of the first side. The method further includes placing a device region along the second side of the memory cell region, where the bitline jumper routing region is between the second power supply routing region and the device region.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: March 26, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chih-Chuan Yang, Jui-Wen Chang, Feng-Ming Chang, Kian-Long Lim, Kuo-Hsiu Hsu, Lien Jung Hung, Ping-Wei Wang
  • Patent number: 11910602
    Abstract: Embodiments of three-dimensional memory device architectures and fabrication methods therefore are disclosed. In an example, the memory device includes a substrate having a first layer stack on it. The first layer stack includes alternating conductor and insulator layers. A second layer stack is disposed over the first layer stack where the second layer stack also includes alternating conductor and insulator layers. One or more vertical structures extend through the first layers stack. A conductive material is disposed on a top surface of the one or more vertical structures. One or more second vertical structures extend through the second layer stack and through a portion of the conductive material.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: February 20, 2024
    Assignee: Yangtze Memory Technologies Co., Ltd.
    Inventors: Jun Liu, Zongliang Huo
  • Patent number: 11849577
    Abstract: A memory device with memory cell pairs each having a single continuous channel region, first and second floating gates over first and second portions of the channel region, an erase gate over a third portion of the channel region between the first and second channel region portions, and first and second control gates over the first and second floating gates. For each of the pairs of memory cells, the first region is electrically connected to the second region of an adjacent pair of memory cells in the same active region, and the second region is electrically connected to the first region of an adjacent pair of the memory cells in the same active region.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: December 19, 2023
    Assignee: Silicon Storage Technology, Inc.
    Inventors: Hieu Van Tran, Hung Quoc Nguyen, Nhan Do
  • Patent number: 11798639
    Abstract: A memory device and an operation method thereof are disclosed. The memory device includes a P-well region, a common source line, a ground selection line, at least one dummy ground selection line, a plurality of word lines, at least one dummy string selection line, a string selection line, at least one bit line and at least one memory string. The gates of a plurality of memory cells of the memory string are connected to the word lines. The operation method includes the following steps. Performing a read operation and applying a read voltage on the selected word line. Applying a pass voltage on other unselected word lines and the ground selection lines, etc. Before ending of the read operation, firstly decreasing voltages of the string selection line and the dummy string selection line in advance, then increasing voltage of the bit line.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: October 24, 2023
    Assignee: MACRONIX INTERNATIONAL CO., LTD.
    Inventors: Guan-Wei Wu, Yao-Wen Chang, Chun-Liang Lu, I-Chen Yang
  • Patent number: 11785759
    Abstract: A method for fabricating floating body memory cells (FBCs), and the resultant FBCs where gates favoring different conductivity type regions are used is described. In one embodiment, a p type back gate with a thicker insulation is used with a thinner insulated n type front gate. Processing, which compensates for misalignment, which allows the different oxide and gate materials to be fabricated is described.
    Type: Grant
    Filed: August 24, 2022
    Date of Patent: October 10, 2023
    Assignee: Intel Corporation
    Inventors: Peter L. D. Chang, Uygar E. Avci, David Kencke, Ibrahim Ban
  • Patent number: 11756617
    Abstract: A variable resistance memory device includes plural first, second, and third conductors, plural memory cells, and a write circuit. Each memory cell is between one first conductor and one third conductor, and includes a first sub memory cell and a second sub memory cell. The first sub memory cell is between the one first conductor and one second conductor, and includes a first variable resistance element and a first bidirectional switching element. The second sub memory cell is between the one second conductor and the one third conductor, and includes a second variable resistance element and a second bidirectional switching element. The write circuit applies a first potential to the first and third conductors of a selected memory cell, a second potential to the second conductor of the selected memory cell, and a third potential to the first and third conductors of non-selected memory cells.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: September 12, 2023
    Assignee: Kioxia Corporation
    Inventor: Yoshiaki Asao
  • Patent number: 11744088
    Abstract: According to one embodiment, a memory device includes: a first variable resistance layer; first and second semiconductor layers being in contact with the first variable resistance layer; a first word line; a second word line being adjacent to the first word line; and a third word line being adjacent to the first and second word lines with the first semiconductor layer, the first variable resistance layer, and the second semiconductor layer interposed therebetween, and provided between the first word line and the second word line. In the first variable resistance layer, a first region including a shortest path connecting the first word line and the third word line functions as a first memory cell, and a second region including a shortest path connecting the third word line and the second word line functions as a second memory cell.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: August 29, 2023
    Assignee: Kioxia Corporation
    Inventors: Ryu Ogiwara, Daisaburo Takashima, Takahiko Iizuka
  • Patent number: 11652048
    Abstract: A semiconductor device includes a substrate, a memory cell region, a peripheral region adjacent to the memory cell region, a plurality of word-lines extending across the memory cell region and the peripheral region, and a plurality of contacts connected to edge portions of even numbered ones of the plurality of word-lines in the peripheral region, respectively.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: May 16, 2023
    Assignee: MICRON TECHNOLOGY, INC.
    Inventor: Harutaka Honda
  • Patent number: 11594551
    Abstract: A semiconductor memory device according to an embodiment includes: a stacked body alternately stacking first insulating layers and gate electrode layers in a first direction; first to third semiconductor layers in the stacked body extending in the first direction; first to third charge accumulation layers; and a second insulating layer in the stacked body extending in the first direction, the second insulating layer contacting the first semiconductor layer or the first charge accumulation layer in a plane perpendicular to the first direction. A first distance between two end surfaces of the gate electrode layer monotonically increases in the first direction in a first cross section parallel to the first direction. A second distance between two end surfaces of the gate electrode layer monotonically increases in the first direction, decreases, and then monotonically increases in a second cross section parallel to the first direction different from the first cross section.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: February 28, 2023
    Assignee: Kioxia Corporation
    Inventor: Moto Yabuki
  • Patent number: 11587947
    Abstract: In a 3D semiconductor memory device, a stack structure includes electrodes and first insulating layers disposed between the electrodes. The stack structure has a stair structure on a connection region. A vertical channel structure penetrates the stack structure on a cell array region. A vertical dummy structure penates the stair structure on the connection region. A second insulating layer is selectively disposed on the cell array region. A maximum thickness of the second insulating layer ranges from 1.5 times to 10 times a maximum thickness of the first insulating layer on the second insulating layer. The vertical channel structure includes an abrupt diameter change at a level of a top surface of the second insulating layer. The abrupt diameter change has a surface which is parallel to the top surface of the second insulating layer and is substantially coplanar with the top surface of the second insulating layer.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: February 21, 2023
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kang-Won Lee, Jaeyoung Song, Dong-Sik Lee, Donghoon Jang
  • Patent number: 11552084
    Abstract: Methods and devices including a plurality of memory cells and a first bit line connected to a first column of memory cells of the plurality of memory cells, and a second bit line connected to the first column of cells. The first bit line is shared with a second column of memory cells adjacent to the first column of memory cells. The second bit line is shared with a third column of cells adjacent to the first column of cells opposite the second column of cells.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 10, 2023
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Ping-Wei Wang, Chih-Chuan Yang, Lien Jung Hung, Feng-Ming Chang, Kuo-Hsiu Hsu, Kian-Long Lim, Ruey-Wen Chang
  • Patent number: 11482449
    Abstract: An electrical component and method for manufacturing the electrical component with a substrate a conductor stack having multiple layers and including at least one electrically conductive path. The conductor stack mounted to the substrate with a dielectric passivation stack encasing at least a portion of the conductor stack.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: October 25, 2022
    Assignee: General Electric Company
    Inventors: Cheng-Po Chen, Reza Ghandi, David Richard Esler, David Mulford Shaddock, Emad Andarawis Andarawis, Liang Yin
  • Patent number: 11476265
    Abstract: A three-dimensional semiconductor device comprises a stack structure on a lower structure, a vertical channel structure passing through the stack structure, and a first vertical support structure passing through the stack structure and spaced apart from the vertical channel structure. The stack structure includes interlayer insulation layers and gate horizontal patterns, alternately stacked in a vertical direction perpendicular to an upper surface of the lower structure. The vertical channel structure and the first vertical support structure have different cross-sectional shapes. The vertical channel structure further includes a channel semiconductor layer. The vertical channel structure includes first and second vertical regions, and a width variation portion between the first and second vertical regions. The interlayer insulation layers include an intermediate interlayer insulation layer adjacent to the width variation portion.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Seok Cheon Baek
  • Patent number: 11437300
    Abstract: A semiconductor device includes a substrate including a cell region and a connection region. The connection region includes a plurality of pad regions and a through electrode region. A horizontal conductive layer is on the substrate. A supporter is on the horizontal conductive layer. The supporter includes a first portion in the cell region, a second portion in the plurality of pad regions, and a third portion in the through electrode region. A connection conductive layer is between the first portion and the horizontal conductive layer. A connection mold layer is between the third portion and the horizontal conductive layer. A first buried insulation layer passing through the third portion, the connection mold layer, and the horizontal conductive layer is provided. A stacked structure is on the substrate. A through electrode passing through the first buried insulation layer is provided.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: September 6, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woosung Yang, Jiyoung Kim, Jiwon Kim
  • Patent number: 11398489
    Abstract: Some embodiments include apparatuses and methods having a substrate, a memory cell string including a body, a select gate located in a level of the apparatus and along a portion of the body, and control gates located in other levels of the apparatus and along other respective portions of the body. At least one of such apparatuses includes a conductive connection coupling the select gate or one of the control gates to a component (e.g., transistor) in the substrate. The connection can include a portion going through a portion of at least one of the control gates.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: July 26, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Toru Tanzawa, Tamotsu Murakoshi, Deepak Thimmegowda
  • Patent number: 10916547
    Abstract: A method for fabricating floating body memory cells (FBCs), and the resultant FBCs where gates favoring different conductivity type regions are used is described. In one embodiment, a p type back gate with a thicker insulation is used with a thinner insulated n type front gate. Processing, which compensates for misalignment, which allows the different oxide and gate materials to be fabricated is described.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: February 9, 2021
    Assignee: Intel Corporation
    Inventors: Peter L. D. Chang, Uygar E. Avci, David Kencke, Ibrahim Ban
  • Patent number: 10748600
    Abstract: Methods, systems, and devices for phase charge sharing are described. In some memory systems or memory devices, one or more decoders may be used to bias access lines of a memory die. The decoders may transfer voltage or current between a first conductive line of the decoder and a second conductive line of the decoder via a shorting device. Transferring the voltage or current may be performed as part of or in association with an operation (e.g., an activate or pre-charge operation) to access one or more memory cells of the memory die. In some examples, the decoders may transfer voltage or current between a first conductive line of a decoder associated with a first refresh activity and a second conductive line of the decoder associated with a second refresh activity via a shorting device.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: August 18, 2020
    Assignee: Micron Technologies, Inc.
    Inventors: James S. Rehmeyer, George B. Raad, Debra M. Bell, Markus H. Geiger, Anthony D. Veches
  • Patent number: 10381350
    Abstract: A method for fabricating floating body memory cells (FBCs), and the resultant FBCs where gates favoring different conductivity type regions are used is described. In one embodiment, a p type back gate with a thicker insulation is used with a thinner insulated n type front gate. Processing, which compensates for misalignment, which allows the different oxide and gate materials to be fabricated is described.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: August 13, 2019
    Assignee: Intel Corporation
    Inventors: Peter L. D. Chang, Uygar E. Avci, David Kencke, Ibrahim Ban
  • Patent number: 10373694
    Abstract: Methods of operating apparatus, and apparatus configured to perform similar methods, include obtaining information indicative of a data value stored in a particular memory cell of an array of volatile memory cells of the apparatus, determining if a power loss to the apparatus is indicated, and, if a power loss to the apparatus is indicated, selectively programming one memory cell of a pair of gate-connected non-volatile memory cells of the apparatus responsive to the information indicative of the data value stored in the particular memory cell. A resulting combination of threshold voltages of the one memory cell of the pair of gate-connected non-volatile memory cells and of the other memory cell of the pair of gate-connected non-volatile memory cells is representative of the information indicative of the data value stored in the particular memory cell.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 6, 2019
    Assignee: Micron Technology, Inc.
    Inventor: Rainer Bonitz
  • Patent number: 10366740
    Abstract: Some embodiments include an apparatus having first and second comparative bitlines extending horizontally and coupled with a sense amplifier. First memory cell structures are coupled with the first comparative bitline. Each of the first memory cell structures has a first transistor associated with a first capacitor. Second memory cell structures are coupled with the second comparative bitline. Each of the second memory cell structures has a second transistor associated with a second capacitor. Each of the first capacitors has a container-shaped first node and is vertically offset from an associated first sister capacitor which is a mirror image of its associated first capacitor along a horizontal plane. Each of the second capacitors has a container-shaped first node and is vertically offset from an associated second sister capacitor which is a mirror image of its associated second capacitor along the horizontal plane.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 30, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Tae H. Kim, Sangmin Hwang, Si-Woo Lee
  • Patent number: 10366001
    Abstract: Disclosed approaches of processing a circuit design include determining a subset of addresses of a first RAM of the circuit design that are accessed more often than a frequency threshold. A specification of a second RAM is created for the subset of addresses. A decoder circuit is added to the circuit design. The decoder circuit is configured to enable the second RAM and disable the first RAM in response to an input address in the subset of addresses, and to enable the first RAM and disable the second RAM in response to an input address other than addresses in the subset of addresses.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 30, 2019
    Assignee: XILINX, INC.
    Inventors: Nithin Kumar Guggilla, Chaithanya Dudha, Krishna Garlapati, Chun Zhang, Fan Zhang, Anup Kumar Sultania
  • Patent number: 10347322
    Abstract: Some embodiments include an apparatus having first and second comparative bitlines extending horizontally and coupled with a sense amplifier. First memory cell structures are coupled with the first comparative bitline. Each of the first memory cell structures has a first transistor associated with a first capacitor. Second memory cell structures are coupled with the second comparative bitline. Each of the second memory cell structures has a second transistor associated with a second capacitor. Each of the first capacitors has a container-shaped first node and is vertically offset from an associated first sister capacitor which is a mirror image of its associated first capacitor along a horizontal plane. Each of the second capacitors has a container-shaped first node and is vertically offset from an associated second sister capacitor which is a mirror image of its associated second capacitor along the horizontal plane.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 9, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Tae H. Kim, Sangmin Hwang, Si-Woo Lee
  • Patent number: 10276241
    Abstract: According to one embodiment, a semiconductor storage device of an embodiment of the present disclosure is provided with peripheral circuits, a memory cell array, upper bit lines, and first and second connecting parts. The memory cell array is disposed above the peripheral circuit, and includes at least first and second regions. The upper bit lines extend in a first direction and are above the memory cell array. The first and second connecting parts are respectively provided with contact plugs, and one of these connecting parts is formed between first and second regions. The upper bit lines includes a first group of upper bit lines which are connected to the peripheral circuits via the first connecting part, and a second group of upper bit lines which are connected to the peripheral circuits via the second connecting part.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: April 30, 2019
    Assignee: Toshiba Memory Corporation
    Inventor: Hiroshi Maejima
  • Patent number: 10236768
    Abstract: The present disclosure relates to a structure which includes a diode-based Dickson charge pump which is configured to use an independent multi-gate device to reduce a threshold voltage of a plurality of transistor diodes during a charging and pumping phase.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: March 19, 2019
    Assignee: GLOBALFOUNDARIES INC.
    Inventor: Wern Ming Koe
  • Patent number: 10181473
    Abstract: A semiconductor device includes a substrate, plural active areas, plural bit lines and plural dummy bit lines. The substrate includes a cell region and a periphery region, and the active areas are defined on the substrate. The bit lines are disposed on the substrate, within the cell region and across the active areas. The dummy bit lines are disposed at a side of the bit lines, wherein the dummy bit lines are in contact with each other and have different pitches therebetween.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: January 15, 2019
    Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventors: Li-Wei Feng, Ying-Chiao Wang, Tsung-Ying Tsai, Kai-Ping Chen, Chien-Ting Ho
  • Patent number: 10134869
    Abstract: To provide a semiconductor device having improved reliability. After formation of an n+ type semiconductor region for source/drain, a first insulating film is formed on a semiconductor substrate so as to cover a gate electrode and a sidewall spacer. After heat treatment, a second insulating film is formed on the first insulating film and a resist pattern is formed on the second insulating film. Then, these insulating films are etched with the resist pattern as an etching mask. The resist pattern is removed, followed by wet washing treatment. A metal silicide layer is then formed by the salicide process.
    Type: Grant
    Filed: December 4, 2016
    Date of Patent: November 20, 2018
    Assignee: Renesas Electronics Corporation
    Inventors: Yasufumi Morimoto, Kiyonobu Takahashi, Morihiko Kume
  • Patent number: 10121792
    Abstract: A method for fabricating floating body memory cells (FBCs), and the resultant FBCs where gates favoring different conductivity type regions are used is described. In one embodiment, a p type back gate with a thicker insulation is used with a thinner insulated n type front gate. Processing, which compensates for misalignment, which allows the different oxide and gate materials to be fabricated is described.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: November 6, 2018
    Assignee: Intel Corporation
    Inventors: Peter L. D. Chang, Uygar E. Avci, David Kencke, Ibrahim Ban
  • Patent number: 10115916
    Abstract: Device architectures based on trapping and de-trapping holes or electrons and/or recombination of both types of carriers are obtained by carrier trapping either in near-interface deep ambipolar states or in quantum wells/dots, either serving as ambipolar traps in semiconductor layers or in gate dielectric/barrier layers. In either case, the potential barrier for trapping is small and retention is provided by carrier confinement in the deep trap states and/or quantum wells/dots. The device architectures are usable as three terminal or two terminal devices.
    Type: Grant
    Filed: April 11, 2015
    Date of Patent: October 30, 2018
    Assignee: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Tze-Chiang Chen, Kailash Gopalakrishnan, Bahman Hekmatshoartabari
  • Patent number: 10007160
    Abstract: An object is to provide a display device that performs accurate display. A circuit is formed using a transistor that includes an oxide semiconductor and has a low off-state current. A precharge circuit or an inspection circuit is formed in addition to a pixel circuit. The off-state current is low because the oxide semiconductor is used. Thus, it is not likely that a signal or voltage is leaked in the precharge circuit or the inspection circuit to cause defective display. As a result, a display device that performs accurate display can be provided.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: June 26, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Atsushi Umezaki
  • Patent number: 9919147
    Abstract: Electrode arrays for biological implants are disclosed. Electrodes are arranged in such a way so that electrical traces overlap other electrical traces in a separate layer without X shaped crossing, while overlapping to a degree sufficient to prevent dielectric breakdown of the insulating, separating layer.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: March 20, 2018
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Neil H Talbot, Jordan M Neysmith, Dustin Tobey
  • Patent number: 9853019
    Abstract: A system having an integrated circuit (IC) device can include a die formed on a semiconductor substrate and having a plurality of first wells formed therein, the first wells being doped to at least a first conductivity type; a global network configured to supply a first global body bias voltage to the first wells; and a first bias circuit corresponding to each first well and configured to generate a first local body bias for its well having a smaller setting voltage than the first global body bias voltage; wherein at least one of the first wells is coupled to a transistor having a strong body coefficient formed therein, which transistor may be a transistor having a highly doped region formed below a substantially undoped channel, the highly doped region having a dopant concentration greater than that the corresponding well.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: December 26, 2017
    Assignee: Mie Fujitsu Semiconductor Limited
    Inventors: Lawrence T. Clark, David A. Kidd, Augustine Kuo
  • Patent number: 9852805
    Abstract: A method of programming one-time programmable (OTP) memory cells in an array is described. Each memory cell has a MOSFET programming element and a MOSFET pass transistor, the MOSFET pass transistor having a gate electrode over a channel region between two source/drain regions, and the MOSFET programming element having a gate electrode over a channel region contiguous to a source/drain region either part of, or connected to, one of the two source/drains associated with the MOSFET pass transistor. The other source/drain region of the MOSFET pass transistor is coupled to a bit line. The memory cell is programmed by setting a first voltage of a first polarity on the gate electrode of the pass transistor to electrically connect the source/drain regions of the pass transistor; setting a second voltage of the first polarity on the gate electrode of the programming element; and setting a third voltage of a second polarity on the bit line.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: December 26, 2017
    Assignee: Kilopass Technology, Inc.
    Inventors: Harry Luan, Tao Su, Steve Wang, Charlie Cheng