Patents Examined by Mohammad M Hoque
  • Patent number: 11978657
    Abstract: Disclosed herein are methods for manufacturing IC components using bottom-up fill of openings with a dielectric material. In one aspect, an exemplary method includes, first, depositing a solid dielectric liner on the inner surfaces of the openings using a non-flowable process, and subsequently filling the remaining empty volume of the openings with a fill dielectric using a flowable process. Such a combination method may maximize the individual strengths of the non-flowable and flowable processes due to the synergetic effect achieved by their combined use, while reducing their respective drawbacks. Assemblies and devices manufactured using such methods are disclosed as well.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: May 7, 2024
    Assignee: Intel Corporation
    Inventors: Ebony L. Mays, Bruce J. Tufts
  • Patent number: 11978796
    Abstract: Monolithically stacked VTFET devices having source/drain contacts with increased contact area and dielectric isolation are provided. In one aspect, a stacked VTFET device includes: at least a bottom VTFET below a top VTFET, wherein the bottom VTFET and the top VTFET each includes source/drain regions interconnected by a vertical fin channel, and a gate stack alongside the vertical fin channel; and source/drain contacts to the source/drain regions, wherein at least one of the source/drain contacts is in direct contact with more than one surface of a given one of the source/drain regions. A stacked VTFET device having at least a bottom VTFET1 below a top VTFET1, and a bottom VTFET2 below a top VTFET2, and a method of forming a stacked VTFET device are also provided.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: May 7, 2024
    Assignee: International Business Machines Corporation
    Inventors: Chen Zhang, Ruilong Xie, Lan Yu, Kangguo Cheng
  • Patent number: 11973107
    Abstract: A manufacturing method of a semiconductor super-junction device includes the following steps: An n-type substrate is etched in a self-aligning manner using a first insulating layer and a second insulating layer as a mask to form a second groove in the n-type substrate. A gate structure is formed in the second groove.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: April 30, 2024
    Assignee: SUZHOU ORIENTAL SEMICONDUCTOR CO., LTD.
    Inventors: Wei Liu, Yuanlin Yuan, Rui Wang, Lei Liu
  • Patent number: 11967575
    Abstract: Structures and techniques provide bond enhancement in microelectronics by trapping contaminants and byproducts during bonding processes, and arresting cracks. Example bonding surfaces are provided with recesses, sinks, traps, or cavities to capture small particles and gaseous byproducts of bonding that would otherwise create detrimental voids between microscale surfaces being joined, and to arrest cracks. Such random voids would compromise bond integrity and electrical conductivity of interconnects being bonded. In example systems, a predesigned recess space or predesigned pattern of recesses placed in the bonding interface captures particles and gases, reducing the formation of random voids, thereby improving and protecting the bond as it forms. The recess space or pattern of recesses may be placed where particles collect on the bonding surface, through example methods of determining where mobilized particles move during bond wave propagation.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: April 23, 2024
    Assignee: ADEIA SEMICONDUCTOR BONDING TECHNOLOGIES INC.
    Inventors: Guilian Gao, Javier A. DeLaCruz, Shaowu Huang, Liang Wang, Gaius Gillman Fountain, Jr., Rajesh Katkar, Cyprian Emeka Uzoh
  • Patent number: 11967645
    Abstract: A semiconductor device is provided. The semiconductor device includes a substrate, a field plate, a gate electrode, and a first dielectric layer. The substrate has a top surface. The substrate includes a first drift region with a first conductivity type extending from the top surface of the substrate into the substrate, and includes a second drill region with the first conductivity type extending from the top surface of the substrate into the substrate and adjacent to the first drift region. The field plate is over the substrate. The gate electrode has a first portion and a second portion, wherein the first portion of the gate electrode is located over the field plate. The first dielectric layer is between the substrate and the field plate. The first portion of the gate electrode is overlapping with a boundary of the first drift region and the second drift region in the substrate.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: April 23, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
    Inventors: Yogendra Yadav, Chi-Chih Chen, Ruey-Hsin Liu, Chih-Wen Yao
  • Patent number: 11956943
    Abstract: A memory comprises a substrate, and word lines, bit lines and memory cells located on one side of the substrate. Each of the memory cells comprises a transistor comprising: a semiconductor layer comprising a source contact region, a channel region and a drain contact region connected sequentially; a primary gate electrically connected to one of the word lines; a source electrically connected to one of the bit lines and the source contact region of the semiconductor layer, respectively; a drain electrically connected to the drain contact region of the semiconductor layer; and a secondary gate electrically connected to the drain, wherein an orthographic projection of the primary gate on the substrate and an orthographic projection of the secondary gate on the substrate are at least partially overlapped with an orthographic projection of the channel region of the semiconductor layer on the substrate, respectively.
    Type: Grant
    Filed: April 26, 2023
    Date of Patent: April 9, 2024
    Assignee: Beijing Superstring Academy of Memory Technology
    Inventors: Zhengyong Zhu, Bokmoon Kang, Guilei Wang, Chao Zhao
  • Patent number: 11956939
    Abstract: A memory device includes a first field effect transistor (FET) stack on a first bottom source/drain region, which includes a first vertical transport field effect transistor (VTFET) device between a second VTFET device and the first source/drain region, and a second FET stack on a second bottom source/drain region, which includes a third VTFET device between a fourth VTFET device and the bottom source/drain region. The memory device includes a third FET stack on a third bottom source/drain region, which includes a fifth VTFET between a sixth VTFET and the third source/drain region, which is laterally adjacent to the first and second source/drain regions. The memory device includes a first electrical connection interconnecting a gate structure of the third VTFET with a gate structure of the fifth VTFET, and a second electrical connection interconnecting a gate structure of the second VTFET with a gate structure of the sixth VTFET.
    Type: Grant
    Filed: March 14, 2023
    Date of Patent: April 9, 2024
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tsung-Sheng Kang, Ardasheir Rahman, Tao Li, Albert M. Young
  • Patent number: 11950404
    Abstract: A memory device includes: a word line stack including word lines that are alternately stacked vertically over a substrate, and having an edge portion; at least one supporter extending vertically in a direction that the word lines are stacked and supporting the edge portion of the word line stack; contact plugs that are electrically connected to the word lines at the edge portion of the word line stack; and active layers positioned between the word lines, and horizontally oriented in a direction intersecting with the word lines.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: April 2, 2024
    Assignee: SK hynix Inc.
    Inventor: Seung Hwan Kim
  • Patent number: 11949011
    Abstract: A semiconductor structure including a bottom source drain region arranged on a substrate, a semiconductor channel region extending vertically upwards from a top surface of the bottom source drain region, a metal gate disposed around the semiconductor channel region, a top source drain region above the semiconductor channel region, an amorphous silicon layer directly on top of the metal gate, and an oxidation layer directly on top of the amorphous silicon layer, where the amorphous silicon layer and the oxidation layer together completely separate the metal gate from a surrounding interlevel dielectric layer.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: April 2, 2024
    Assignee: International Business Machines Corporation
    Inventors: Chen Zhang, ChoongHyun Lee
  • Patent number: 11942580
    Abstract: Various optoelectronic modules are described and include one or more optoelectronic devices. Each optoelectronic module includes one or more optoelectronic devices. Sidewalls laterally surround each optoelectronic device and can be in direct contact with sides of the optoelectronic device or, in some cases, with an overmold surrounding the optoelectronic device. The sidewalls can be composed, for example, of a vacuum injected material that is non-transparent to light emitted by or detectable by the optoelectronic device. The module also includes a passive optical element. Depending on the implementation, the passive optical element can be on a cover for the module, directly on a top surface of the optoelectronic device, or on an overmold surrounding the optoelectronic device. Methods of fabricating such modules are described as well, and can facilitate manufacturing the modules using wafer-level processes.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: March 26, 2024
    Assignee: ams Sensors Singapore Pte. Ltd.
    Inventors: Simon Gubser, Mario Cesana, Markus Rossi, Hartmut Rudmann
  • Patent number: 11942544
    Abstract: A semiconductor device includes: a first stacked structure including a first lower dielectric layer, a first horizontal gate structure, and a first upper dielectric layer stacked vertically; a second stacked structure including a second lower dielectric layer, a second horizontal gate structure, and a second upper dielectric layer stacked vertically, and having a first side facing a first side of the first stacked structure; a first channel layer formed on the first side of the first stacked structure; a second channel layer formed on the first side of the second stacked structure; a lower electrode layer commonly coupled to lower ends of the first and second channel layers between the first and second stacked structures; a first upper electrode layer coupled to an upper end of the first channel layer; and a second upper electrode layer coupled to an upper end of the second channel layer.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: March 26, 2024
    Assignee: SK hynix Inc.
    Inventor: Young Gwang Yoon
  • Patent number: 11937456
    Abstract: A display apparatus includes a substrate including a display area for displaying an image, a first thin film transistor in the display area and including a first semiconductor layer having a silicon semiconductor and a first gate electrode insulated from the first semiconductor layer, a first interlayer insulating layer covering the first gate electrode and having a first contact hole extending therethrough, and a second thin film transistor on the first interlayer insulating layer and including a second semiconductor layer having an oxide semiconductor and a second gate electrode insulated from the second semiconductor layer. A portion of the second semiconductor layer extends into a first contact hole and is electrically connected to the first semiconductor layer.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: March 19, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kiwook Kim, Chul kyu Kang, Wonkyu Kwak, Kwangmin Kim, Joongsoo Moon
  • Patent number: 11935889
    Abstract: A method includes, in a first etching step, etching a semiconductor substrate to form first recesses in a first device region and second recesses in a second device regions simultaneously. A first semiconductor strip is formed between the first recesses. A second semiconductor strip is formed between the second recesses. In a second etching step, the semiconductor substrate in the second device region is etched to extend the second recesses. The first recesses and the second recesses are filled with a dielectric material to form first and second isolation regions in the first and second recesses, respectively. The first isolation regions and the second isolation regions are recessed. Portions of the semiconductor substrate in the first and the second device regions protrude higher than top surfaces of the respective first and second isolation regions to form a first and a second semiconductor fin, respectively.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: March 19, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Che-Cheng Chang, Chih-Han Lin, Horng-Huei Tseng
  • Patent number: 11935930
    Abstract: Embodiments herein describe FETs with channels that form wrap-around contacts (a female portion of a female/male connection) with metal contacts (a male portion of the female/male connection) in order to connect the channels to the drain and source regions. In one embodiment, a first conductive contact is formed underneath a dummy channel. In addition an encapsulation material wraps around the first conductive contact. The dummy channel and the encapsulation material can then be removed and replaced by the material of the channel which, as a result, include a female portion that wraps around the first conductive contact.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: March 19, 2024
    Assignee: International Business Machines Corporation
    Inventors: Julien Frougier, Ruilong Xie, Kangguo Cheng, Chanro Park, Andrew Gaul
  • Patent number: 11930633
    Abstract: A method for preparing a semiconductor device, including providing a substrate, where a word line structure is formed in the substrate; a bit line supporting layer includes a first oxide layer and a first nitride layer. A bit line structure is formed in the first nitride layer, and the first oxide layer is formed on both sides of the bit line structure and located in the first nitride layer; patterning the supporting structure to form a first via corresponding to the bit line structure; and etching the bit line supporting layer to a preset height along the first via, adjusting an etching parameter and a selective etching ratio of etching gas for an oxide layer to a nitride layer, and continuing to etch the bit line supporting layer until the bit line structure is exposed, to form a polymer layer above the bit line structure.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: March 12, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventor: Yule Sun
  • Patent number: 11916143
    Abstract: A semiconductor device is provided. The semiconductor device includes a bottom epitaxial layer, a gate stack formed over the bottom epitaxial layer, the gate stack including a work function metal (WFM) layer, a channel fin formed on the bottom epitaxial layer, a first interlayer dielectric (ILD) layer formed in a gate landing area over the gate stack, a second ILD layer formed in an area other than the gate landing area, and a WFM encapsulation layer formed between the first ILD layer and the second ILD layer, and formed on sidewalls of the gate stack.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: February 27, 2024
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Wenyu Xu, Indira Seshadri, Jing Guo, Ekmini Anuja De Silva
  • Patent number: 11917805
    Abstract: A semiconductor memory device includes: a first word line extending in a vertical direction; a second word line spaced apart from the first word line in a first horizontal direction and extending in the vertical direction; a first semiconductor pattern of a ring-shaped horizontal cross-section surrounding the first word line and constituting a portion of a first cell transistor; a second semiconductor pattern of a ring-shaped horizontal cross-section surrounding the second word line and constituting a portion of a second cell transistor; a cell capacitor between the first semiconductor pattern and the second semiconductor pattern and including a first electrode, a second electrode, and a capacitor dielectric film; a first bit line opposite the cell capacitor with respect to the first semiconductor pattern and extending in a second horizontal direction; and a second bit line opposite the cell capacitor with respect to the second semiconductor pattern.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyunghwan Lee, Yongseok Kim, Ilgweon Kim, Huijung Kim, Sungwon Yoo, Minhee Cho
  • Patent number: 11916145
    Abstract: The present disclosure describes a semiconductor device includes a first fin structure, an isolation structure in contact with a top surface of the first fin structure, a substrate layer in contact with the isolation structure, an epitaxial layer in contact with the isolation structure and the substrate layer, and a second fin structure above the first fin structure and in contact with the epitaxial layer.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: February 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chansyun David Yang, Keh-Jeng Chang, Chan-Lon Yang
  • Patent number: 11908944
    Abstract: A vertical field effect transistor includes a top source/drain region in contact with a top portion of a channel fin extending perpendicularly from a semiconductor substrate, a bottom source/drain region is disposed above the semiconductor substrate and on opposite sidewalls of a bottom portion of the channel fin, a metal gate surrounding the channel fin is separated from the top source/drain region by a top spacer and from the bottom source/drain region by a bottom spacer, the metal gate and the top spacer are in contact with an adjacent first interlevel dielectric layer. A silicide layer is directly above an uppermost surface of the top source/drain region, and a nitride layer is directly above an uppermost surface of the silicide layer. A top source/drain contact, having a size that is substantially less than a length of the channel fin, extends until an uppermost surface of the nitride layer.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: February 20, 2024
    Assignee: International Business Machines Corporation
    Inventors: Heng Wu, Lan Yu, Samuel Sung Shik Choi, Ruilong Xie
  • Patent number: 11895852
    Abstract: A method for forming a semiconductor structure includes: providing a substrate, a sacrificial layer and active layer on sacrificial layer being formed on the substrate; etching the active layer and sacrificial layer up to a surface of the substrate to form a plurality of active lines arranged in parallel and extending along first direction; filling an opening located between two adjacent ones of active lines to form a first isolating layer; etching an end of active lines to form an opening hole; removing sacrificial layer along opening hole, to form a gap between a bottom of the active lines and substrate; filling a conductive material in the gap to form a bit line extending along first direction; patterning the active lines to form a plurality of separate active pillars arrayed along first direction and second direction; and forming semiconductor pillars on top surfaces of respective ones of the active pillars.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 6, 2024
    Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
    Inventors: Yiming Zhu, Erxuan Ping