Patents Examined by Jami Valentine Miller
  • Patent number: 12096697
    Abstract: A semiconductor device includes a substrate, a first MTJ structure, a second MTJ structure, an interconnection structure including a first metal interconnection and a second metal interconnection disposed on and contacting the first metal interconnection, a fifth metal interconnection, and a sixth metal interconnection. The first MTJ structure, the second MTJ structure, and the interconnection structure are disposed on the substrate. The interconnection structure is located between the first MTJ structure and the second MTJ structure in a first horizontal direction. The fifth metal interconnection and the sixth metal interconnection are disposed under and contact the first MTJ structure and the second MTJ structure, respectively. The fifth metal interconnection includes a barrier layer and a metal layer disposed on the barrier layer. A length of the first MTJ structure in the first horizontal direction is greater than a length of the metal layer in the first horizontal direction.
    Type: Grant
    Filed: October 18, 2023
    Date of Patent: September 17, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Chih-Wei Kuo, Chia-Chang Hsu
  • Patent number: 12089504
    Abstract: A method for fabricating a magnetic random access memory (MRAM) device includes the steps of first forming a magnetic tunneling junction (MTJ) stack on a substrate, forming a first top electrode on the MTJ stack, and then forming a second top electrode on the first top electrode. Preferably, the first top electrode includes a gradient concentration while the second top electrode includes a non-gradient concentration.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: September 10, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Yen-Tsai Yi, Wei-Chuan Tsai, Jin-Yan Chiou, Hsiang-Wen Ke
  • Patent number: 12089505
    Abstract: According to one embodiment, a magnetic memory device includes a first magnetic layer having a variable magnetisation direction, a second magnetic layer having a fixed magnetization direction, a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, a third magnetic layer provided on a lower side of the first magnetic layer, the second magnetic layer and the nonmagnetic layer, having a fixed magnetization direction antiparallel to the magnetization direction of the second magnetic layer, and formed of an alloy of cobalt (Co) and platinum (Pt), and a buffer layer provided on a lower side of the third magnetic layer and including a first layer portion containing rhenium (Re).
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: September 10, 2024
    Assignee: Kioxia Corporation
    Inventors: Tadaaki Oikawa, Youngmin Eeh, Eiji Kitagawa, Taiga Isoda
  • Patent number: 12089420
    Abstract: A method of fabricating a semiconductor device including providing a substrate; forming first and second lower conductive patterns, the and second lower conductive patterns being buried in an interlayer dielectric layer; forming a capping layer on the interlayer dielectric layer and a dummy layer on the capping layer; etching an exposed upper portion of the first lower conductive pattern to form a trench; forming a metal layer that covers the interlayer dielectric layer and the dummy layer such that the metal layer fills the trench; forming a magnetic tunnel junction layer on the metal layer; performing a patterning process to form a memory cell; and forming a first protective layer that covers a lateral surface of the memory cell, wherein, in the patterning process, the metal layer on the top surface of the interlayer dielectric layer is etched to form a first bottom electrode in the trench.
    Type: Grant
    Filed: May 5, 2023
    Date of Patent: September 10, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung Pil Ko, Yongjae Kim
  • Patent number: 12087662
    Abstract: The present disclosure provides a package structure and a method for forming a package structure. The package structure includes a first die having a front surface and a back surface opposite to the front surface; and a thermal management structure over the back surface. The thermal management structure includes a first copper-phosphorous alloy layer thermally coupled to the back surface of the first die.
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: September 10, 2024
    Inventor: Chun-Ming Lin
  • Patent number: 12082510
    Abstract: A semiconductor device comprises a first conductive feature on a semiconductor substrate, a bottom electrode on the first conductive feature, a magnetic tunnel junction (MTJ) stack on the bottom electrode, and a top electrode on the MTJ stack. A spacer contacts a sidewall of the top electrode, a sidewall of the MTJ stack, and a sidewall of the bottom electrode. A conductive feature contacts the top electrode.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: September 3, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
    Inventors: Chih-Fan Huang, Kai-Wen Cheng, Chen-Chiu Huang, Dian-Hau Chen, Yen-Ming Chen
  • Patent number: 12075709
    Abstract: One or more semiconductor processing tools may deposit one or more tantalum nitride layers on an upper surface of a copper interconnect and within a via. The one or more semiconductor processing tools may deposit an adhesion layer on an upper surface of the one or more tantalum nitride layers and within the via. The one or more semiconductor processing tools may deposit tungsten on an upper surface of the adhesion layer and within the via for via interconnection of the magnetic tunnel junction to the copper interconnect.
    Type: Grant
    Filed: July 16, 2021
    Date of Patent: August 27, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ya-Ling Lee, Wei-Gang Chiu, Ming-Hsing Tsai
  • Patent number: 12075619
    Abstract: A semiconductor memory device, and a manufacturing method of the semiconductor memory device, includes: a bit line overlapping with a peripheral circuit layer; interlayer insulating layers and conductive patterns alternately stacked in a first direction on the bit line; vertical channels connected to the bit line, the vertical channels penetrating the interlayer insulating layers and the conductive patterns, the vertical channels protruding farther in the first direction than the stacked interlayer insulating layers and the conductive patterns; a connection pattern in contact with a portion of each of the vertical channels that protrudes farther in the first direction than the stacked interlayer insulating layers and the conductive patterns, the connection pattern connecting the vertical channels; a source channel in contact with the connection pattern, the source channel extending in the first direction; and a source select line surrounding the source channel.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: August 27, 2024
    Assignee: SK hynix Inc.
    Inventor: Nam Jae Lee
  • Patent number: 12075627
    Abstract: An integrated circuit, a system, and a method to integrate phase change memory and magnetoresistive random access memory within a same integrated circuit in a system. The integrated circuit may include an MRAM and a PCM. The MRAM may include an MRAM bottom electrode, an MRAM stack, and an MRAM top electrode. The PCM may include a PCM bottom electrode, where the PCM bottom electrode has a lower height than the MRAM bottom electrode, a phase change material, and a PCM top electrode.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: August 27, 2024
    Assignee: International Business Machines Corporation
    Inventors: Ruilong Xie, Alexander Reznicek, Wei Wang, Tao Li, Tsung-Sheng Kang
  • Patent number: 12068214
    Abstract: A display panel and a manufacturing method thereof are provided. In the manufacturing method of the display panel, a corner-cutting area of a to-be-cut display panel is provided with a cutting groove. The cutting groove penetrates a buffer layer and extends into a flexible substrate. Furthermore, the cutting groove is provided with an inorganic encapsulation layer and a sacrificial layer. Therefore, when cutting the to-be-cut display panel along the cutting groove, cracks generated during a process can be reduced, thereby alleviating a problem of micro-cracks affecting a packaging effect of conventional display panels during a secondary cutting process.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: August 20, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Peng Hu, Yanqiang Duan, Congcong Jiang
  • Patent number: 12069956
    Abstract: Apparatus, and their methods of manufacture, including an integrated circuit device having metallization layers for interconnecting underlying electronic devices. Contacts contact conductors of an uppermost one of the metallization layers. A planarized first dielectric layer covers the contacts and the uppermost one of the metallization layers. An anisotropic magnetoresistive (AMR) stack is on the first dielectric layer between vertically aligned portions of an etch stop layer formed on the first dielectric layer and a second dielectric layer formed on the etch stop layer. Vias extend through the first dielectric layer to electrically connect the AMR stack and the contacts. A chemical-mechanical planarization (CMP) stop layer is on the AMR stack. A third dielectric layer is on the CMP stop layer. A passivation layer contacts the second dielectric layer portions, the third dielectric layer, and each opposing end of the AMR stack and the CMP stop layer.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: August 20, 2024
    Assignee: Texas Instruments Incorporated
    Inventors: Fuchao Wang, Christopher Eric Brannon, William David French, Dok Won Lee
  • Patent number: 12069955
    Abstract: A method for fabricating a magnetic random access memory (MRAM) device includes the steps of first forming a first magnetic tunneling junction (MTJ) on a substrate, forming a first top electrode on the first MTJ, and then forming a passivation layer around the first MTJ. Preferably, the passivation layer includes a V-shape and a valley point of the V-shape is higher than a top surface of the first top electrode.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: August 20, 2024
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Hui-Lin Wang, Si-Han Tsai, Ching-Hua Hsu, Chen-Yi Weng, Po-Kai Hsu, Jing-Yin Jhang
  • Patent number: 12062746
    Abstract: The invention is a small-sized vertical light emitting diode chip with high energy efficiency, wherein a PN junction structure is arranged on a light-emitting region platform of an interface structure; a highly reflective metal layer is arranged under the light-emitting region platform; the interface structure is provided with a P-type ohmic contact area under an outwardly extending platform adjacent to the light-emitting region platform; an insulating layer is formed on the outwardly extending platform; an N-type ohmic contact electrode is in ohmic contact with the PN junction structure and covers the border covering region at a position opposite to the outwardly extending platform; the current conduction is achieved diagonally on the opposite sides by locally diagonally symmetric geometric positioning of the N-type ohmic contact electrode and the P-type ohmic contact area.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: August 13, 2024
    Assignee: EXCELLENCE OPTO. INC.
    Inventors: Fu-Bang Chen, Kuo-Hsin Huang
  • Patent number: 12058941
    Abstract: A magnetic memory device includes a lower contact plug on a substrate and a data storage structure on the lower contact plug. The data storage structure includes a bottom electrode, a magnetic tunnel junction pattern, and a top electrode that are sequentially stacked on the lower contact plug. The lower contact plug and the data storage structure have a first thickness and a second thickness, respectively, in a first direction perpendicular to a top surface of the substrate. The first thickness of the lower contact plug is about 2.0 to 3.6 times the second thickness of the data storage structure.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: August 6, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yongjae Kim, Kuhoon Chung, Gwanhyeob Koh, Bae-Seong Kwon, Kyungtae Nam
  • Patent number: 12052875
    Abstract: A magnetic memory includes a planar electrode and a first wiring spaced from the electrode. A first magnetic member is between the electrode and the first wiring. The first magnetic member has a first end facing the first wiring and a second end facing the electrode. A magnetoresistive element is connected to the first end. A transistor is between the magnetoresistive element and the first wiring. The transistor has a channel layer and a gate electrode covering at least part of an outer periphery of the channel layer. One end of the channel layer is connected to the magnetoresistive element, and another end of the channel layer is connected to the first wiring. A second wiring has a portion between the electrode and the second end of the first magnetic member. A control circuit is electrically connected to the gate electrode, the electrode, and the first and second wirings.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: July 30, 2024
    Assignee: Kioxia Corporation
    Inventors: Yoshihiro Ueda, Naoharu Shimomura, Tsuyoshi Kondo
  • Patent number: 12052867
    Abstract: A method to ease the fabrication of high aspect ratio three dimensional memory structures for memory cells with feature sizes of 20 nm or less, or with a high number of memory layers. The present invention also provides an improved isolation between adjacent memory cells along the same or opposite sides of an active strip. The improved isolation is provided by introducing a strong dielectric barrier film between adjacent memory cells along the same side of an active strip, and by staggering memory cells of opposite sides of the active strip.
    Type: Grant
    Filed: June 15, 2021
    Date of Patent: July 30, 2024
    Assignee: SUNRISE MEMORY CORPORATION
    Inventors: Eli Harari, Wu-Yi Henry Chien, Scott Brad Herner
  • Patent number: 12048161
    Abstract: A method for manufacturing an electronic device includes forming a first source layer including a trench, forming a first sacrificial layer in the trench, forming a first structure over the first source layer, wherein the first structure includes first material layers and second material layers which are alternately stacked over the each other, forming first openings passing through the first structure and extending to the first sacrificial layer, forming first channel layers in the first openings, forming a slit passing through the first structure and extending to the first sacrificial layer, forming a second opening by removing the first sacrificial layer through the slit, and forming a second source layer in the second opening, wherein the second source layer is coupled to the first channel layers.
    Type: Grant
    Filed: May 17, 2023
    Date of Patent: July 23, 2024
    Assignee: SK hynix Inc.
    Inventors: Ki Hong Lee, Ji Yeon Baek, Seung Ho Pyi
  • Patent number: 12040279
    Abstract: A package substrate for connecting together semiconductor devices with other semiconductor device packages. The package substrate includes an exposed core layer with at least one via exposing a conductive layer of the package substrate. A first portion of the package substrate may include a solder mask on top and bottom surfaces. A first semiconductor device may be connected to the first portion of the package substrate. Layers of a second portion of the package substrate are removed to expose a core layer and vias are created in the exposed core layer to expose the conductive layer. Conducive material at least partially filling the vias may be used to connect a semiconductor device package to the second portion of the package substrate. The semiconductor device packages may communicate through conductive layers in the package substrate. The package substrate may be used to connect the semiconductor packages to a motherboard.
    Type: Grant
    Filed: May 6, 2022
    Date of Patent: July 16, 2024
    Assignee: Micron Technology, Inc.
    Inventor: Matthew Monroe
  • Patent number: 12041855
    Abstract: A magnetic memory device includes a magnetic tunnel junction (MTJ) stack, a spin-orbit torque (SOT) induction wiring disposed over the MTJ stack, a first terminal coupled to a first end of the SOT induction wiring, a second terminal coupled to a second end of the SOT induction wiring, and a selector layer coupled to the first terminal.
    Type: Grant
    Filed: July 28, 2023
    Date of Patent: July 16, 2024
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: MingYuan Song, Shy-Jay Lin, William J. Gallagher, Hiroki Noguchi
  • Patent number: 12035540
    Abstract: A magnetic memory device includes a plurality of first bit lines and a plurality of second bit lines, a plurality of first source lines respectively corresponding to the plurality of first bit lines and a plurality of second source lines respectively corresponding to the plurality of second bit lines, a plurality of first memory cells connected between the plurality of first bit lines and the plurality of first source lines, respectively, in a first region, the plurality of first memory cells respectively including a first memory device and a first selection transistor, and a plurality of second memory cells connected between the plurality of second bit lines and the plurality of second source lines, respectively, in a second region, the plurality of second memory cells respectively including a second memory device and a second selection transistor.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: July 9, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boyoung Seo, Kangho Lee, Yoonjong Song, Junghyuk Lee