Same Channel Controlled By Both Junction And Insulated Gate Electrodes, Or By Both Schottky Barrier And Pn Junction Gates (e.g., "taper Isolated" Memory Cell) Patents (Class 257/260)
  • Patent number: 11295812
    Abstract: Memory devices and memory operational methods are described. One example memory system includes a common conductor and a plurality of memory cells coupled with the common conductor. The memory system additionally includes access circuitry configured to provide different ones of the memory cells into one of a plurality of different memory states at a plurality of different moments in time between first and second moments in time. The access circuitry is further configured to maintain the common conductor at a voltage potential, which corresponds to the one memory state, between the first and second moments in time to provide the memory cells into the one memory state.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: April 5, 2022
    Assignee: Micron Technology, Inc.
    Inventors: Wataru Otsuka, Takafumi Kunihiro, Tomohito Tsushima, Makoto Kitagawa, Jun Sumino
  • Patent number: 11158552
    Abstract: A semiconductor device includes a first semiconductor portion and a second semiconductor portion. The first semiconductor portion provides a plurality of memory components, including a first substrate layer, a plurality of first interconnect conductive layers, a plurality of first conductive vias, and a plurality of first conductive contacts. The first conductive contacts electrically connect to the first conductive vias, and the first conductive contacts in combination with the first conductive vias are formed on a top first interconnect conductive layer of the first interconnect conductive layers. The second semiconductor portion provides a control circuit, including a second substrate layer and a plurality of second interconnect conductive layers.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: October 26, 2021
    Assignee: AP Memory Technology Corp.
    Inventors: Wen Liang Chen, Lin Ma, Chien-An Yu, Chun Yi Lin
  • Patent number: 10854307
    Abstract: Embodiments disclosed herein relate to operating a memory cell as an anti-fuse, such as for use in phase change memory, for example.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 1, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Andrea Redaelli
  • Patent number: 10804179
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: October 13, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jan Edward Vandemeer, Jonathan Hale Hammond, Merrill Albert Hatcher, Jr., Jon Chadwick
  • Patent number: 10680060
    Abstract: A semiconductor device includes a semiconductor layer made of a wide bandgap semiconductor and including a gate trench; a gate insulating film formed on the gate trench; and a gate electrode embedded in the gate trench to be opposed to the semiconductor layer through the gate insulating film. The semiconductor layer includes a first conductivity type source region; a second conductivity type body region; a first conductivity type drift region; a second conductivity type first breakdown voltage holding region; a source trench passing through the first conductivity type source region and the second conductivity type body region from the front surface and reaching a drain region; and a second conductivity type second breakdown voltage region selectively formed on an edge portion of the source trench where the sidewall and the bottom wall thereof intersect with each other in a parallel region of the source trench.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: June 9, 2020
    Assignee: ROHM CO., LTD.
    Inventors: Yuki Nakano, Ryota Nakamura
  • Patent number: 10679918
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: June 9, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jan Edward Vandemeer, Jonathan Hale Hammond, Merrill Albert Hatcher, Jr., Jon Chadwick
  • Patent number: 10649689
    Abstract: An electronic device includes a semiconductor memory. The semiconductor memory includes a first variable resistance element, a first switching element coupled to the first variable resistance element via a first line, a second variable resistance element, and a second switching element coupled to the second variable resistance element via a second line, wherein a distance between the first switching element and the first variable resistance element is larger than a distance between the second switching element and the second variable resistance element, and wherein a second path from a first terminal of the second switching element to the second variable resistance element includes a resistance component, a resistance of the second path being greater than a resistance of a first path, the first path being from a first terminal of the first switching element to the first variable resistance element.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: May 12, 2020
    Assignee: SK hynix Inc.
    Inventor: Nam-Kyun Park
  • Patent number: 10636720
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: April 28, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jan Edward Vandemeer, Jonathan Hale Hammond, Merrill Albert Hatcher, Jr., Jon Chadwick
  • Patent number: 10622067
    Abstract: Memory devices and memory operational methods are described. One example memory system includes a common conductor and a plurality of memory cells coupled with the common conductor. The memory system additionally includes access circuitry configured to provide different ones of the memory cells into one of a plurality of different memory states at a plurality of different moments in time between first and second moments in time. The access circuitry is further configured to maintain the common conductor at a voltage potential, which corresponds to the one memory state, between the first and second moments in time to provide the memory cells into the one memory state.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: April 14, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Wataru Otsuka, Takafumi Kunihiro, Tomohito Tsushima, Makoto Kitagawa, Jun Sumino
  • Patent number: 10600711
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 24, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jan Edward Vandemeer, Jonathan Hale Hammond, Merrill Albert Hatcher, Jr., Jon Chadwick
  • Patent number: 10593834
    Abstract: A micro light emitting device includes an epitaxial structure, a first type electrode, and a second type electrode. The epitaxial structure has a first accommodating cavity. The first type electrode is disposed on the first accommodating cavity of the epitaxial structure and has a second accommodating cavity. The second type electrode is disposed on the epitaxial structure, wherein the epitaxial structure is located between the first type electrode and the second type electrode.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: March 17, 2020
    Assignee: PlayNitride Inc.
    Inventors: Chih-Ling Wu, Yi-Min Su
  • Patent number: 10529639
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: January 7, 2020
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jan Edward Vandemeer, Jonathan Hale Hammond, Merrill Albert Hatcher, Jr., Jon Chadwick
  • Patent number: 10497439
    Abstract: A memory apparatus may be provided. The memory apparatus may include a global bit line configured to receive a drift current. A voltage clamping circuit configured to limit a voltage level of the global bit line.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: December 3, 2019
    Assignee: SK hynix Inc.
    Inventors: Min Chul Shin, Ho Seok Em
  • Patent number: 10490476
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: November 26, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jan Edward Vandemeer, Jonathan Hale Hammond, Merrill Albert Hatcher, Jr., Jon Chadwick
  • Patent number: 10492301
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: November 26, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 10448516
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: October 15, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 10438661
    Abstract: Memory devices and memory operational methods are described. One example memory system includes a common conductor and a plurality of memory cells coupled with the common conductor. The memory system additionally includes access circuitry configured to provide different ones of the memory cells into one of a plurality of different memory states at a plurality of different moments in time between first and second moments in time. The access circuitry is further configured to maintain the common conductor at a voltage potential, which corresponds to the one memory state, between the first and second moments in time to provide the memory cells into the one memory state.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: October 8, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Wataru Otsuka, Takafumi Kunihiro, Tomohito Tsushima, Makoto Kitagawa, Jun Sumino
  • Patent number: 10416242
    Abstract: A device includes a plurality of high voltage cells (HVC) coupled to a plurality of resistors, and a controller. The plurality of HVC generates an output voltage that is higher than an input voltage to the plurality of HVC. The controller receives a reference voltage and an output voltage from a resistor of the plurality of resistors. The controller generates a signal responsive to a difference between the reference voltage and the output voltage. The controller forms a closed feedback loop with the plurality of HVC and the plurality of resistors. The generated signal is input to the plurality of HVC. A substrate of a resistor of the plurality of resistors is biased to an output of at least one high voltage cell of the plurality of HVC. Output of the at least one high voltage cell is input to another high voltage cell.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: September 17, 2019
    Assignee: InvenSense, Inc.
    Inventors: Stanley Bo-Ting Wang, Nikhil Acharya, Pruthvi Chaudhari
  • Patent number: 10405433
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: September 3, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 10403356
    Abstract: A memory apparatus may be provided. The memory apparatus may include a global bit line configured to receive a drift current. A voltage clamping circuit configured to limit a voltage level of the global bit line.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: September 3, 2019
    Assignee: SK hynix Inc.
    Inventors: Min Chul Shin, Ho Seok Em
  • Patent number: 10388591
    Abstract: According to an embodiment of a method for fabricating a trench field-effect transistor (trench FET), the method includes: the method includes: patterning a contact pad from a first metal layer situated over a surface of an active die; forming a dielectric layer over the contact pad; patterning the dielectric layer to form a plurality of dielectric islands spaced apart from one another by respective voids; and forming a second metal layer between and over the plurality of dielectric islands so as to substantially fill the respective voids. The contact pad, plurality of dielectric islands, and second metal layer provide the reliable and robust electrical contact.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 20, 2019
    Assignee: Infineon Technologies Americas Corp.
    Inventor: Hugo Burke
  • Patent number: 10347645
    Abstract: A method for fabricating semiconductor device includes the steps of: providing a substrate having a first region and a second region and the substrate comprises a semiconductor layer on top of an insulating layer; forming a first front gate on the first region of the substrate and a second front gate on the second region of the substrate; removing part of the insulating layer under the first front gate; forming a first back gate on the insulating layer under the first front gate; and forming a second back gate under the second front gate.
    Type: Grant
    Filed: December 2, 2018
    Date of Patent: July 9, 2019
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Wanxun He, Su Xing
  • Patent number: 10349529
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: July 9, 2019
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 10211323
    Abstract: A HEMT made of nitride semiconductor materials and a process of forming the same are disclosed, where the HEMT has n-type regions beneath the source and drain electrodes with remarkably increased carrier concentration. The HEMT provides the n-type regions made of at least one of epitaxially grown ZnO layer and MgZnO layer each doped with at least aluminum and gallium with density higher than 1×1020 cm?3. The process of forming the HEMT includes steps of forming recesses by dry-etching, epitaxially growing n-type layer, removing surplus n-type layer except within the recesses by dry-etching using hydrocarbon, and forming the electrodes on the n-type layer.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: February 19, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Ken Nakata
  • Patent number: 10211086
    Abstract: A semiconductor structure includes a substrate with a first conductivity type and a first doping concentration, an active area with its longitudinal axis extending along a first direction, a trench isolation structure contiguous with an end surface of the active area, a passing gate in the trench isolation structure and extending along a second direction that is not parallel with the first direction, and a localized doping region with a second conductivity type and a second doping concentration that is located on the end surface.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: February 19, 2019
    Assignees: UNITED MICROELECTRONICS CORP., Fujian Jinhua Integrated Circuit Co., Ltd.
    Inventor: Yukihiro Nagai
  • Patent number: 10186578
    Abstract: A Schottky barrier diode includes a first semiconductor layer having depressions on a top surface thereof, and having a guard ring extending from the top surface to an inner position of the first semiconductor layer, the guard ring including portions arranged with the depressions interposed therebetween when viewed in a direction perpendicular to the top surface; the diode further includes an insulation layer having portions arranged with the depressions interposed therebetween when viewed in the perpendicular direction, a first metal layer extending as bridging inside and outside of the depressions and the insulation layer, the first metal layer having a first end on the insulation layer, and a second metal layer formed on the first metal layer and having a second end on the insulation layer, the second end being flush with the first end.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: January 22, 2019
    Assignee: ROHM CO., LTD.
    Inventors: Yoshiteru Nagai, Kohei Makita
  • Patent number: 10134738
    Abstract: There is provided a low power memory device with JFET device structures. Specifically, a low power memory device is provided that includes a plurality memory cells having a memory element and a JFET access device electrically coupled to the memory element. The memory cells may be isolated using diffusion based isolation.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: November 20, 2018
    Assignee: Micron Technology, Inc.
    Inventor: Chandra Mouli
  • Patent number: 10109540
    Abstract: A sacrificial interposer test structure including a release layer, a dummy layer on the release layer, one or more conductive pads embedded in the dummy layer, wherein each of the one or more conductive pads has an exposed surface, and a tie layer on the dummy layer and on each exposed surface of the one or more conductive pads.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 23, 2018
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Mori, Keishi Okamoto
  • Patent number: 10109550
    Abstract: The present disclosure relates to a packaging process to enhance thermal and electrical performance of a wafer-level package. The wafer-level package with enhanced performance includes a first thinned die having a first device layer, a multilayer redistribution structure, a first mold compound, and a second mold compound. The multilayer redistribution structure includes package contacts on a bottom surface of the multilayer redistribution structure and redistribution interconnects connecting the first device layer to the package contacts. The first mold compound resides over the multilayer redistribution structure and around the first thinned die, and extends beyond a top surface of the first thinned die to define a cavity within the first mold compound and over the first thinned die. The second mold compound fills the cavity and is in contact with the top surface of the first thinned die.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: October 23, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, Jonathan Hale Hammond, Jan Edward Vandemeer, Merrill Albert Hatcher, Jon Chadwick
  • Patent number: 10085352
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: September 25, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 10028390
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: July 17, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 9992876
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: June 5, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 9942991
    Abstract: This disclosure relates to integrated circuit (IC) packages and methods of manufacturing the same. In one method, a printed circuit board is provided with semiconductor die. The semiconductor die includes a Back-End-of-Line (BEOL) region, a Front-End-of-Line (FEOL) region, and a semiconductor handle such that the BEOL region, the FEOL region, and the semiconductor handle are stacked. A first polymer layer is provided over the printed circuit board so as to cover the semiconductor die. The semiconductor handle of the semiconductor die is exposed through the first polymer layer and removed. A second polymer layer is then provided so that the BEOL region, the FEOL region, and at least a portion of the second polymer layer are stacked. The second polymer layer may be provided to have high thermal conductivity and electric isolation properties thereby providing advantageous package characteristics.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: April 10, 2018
    Assignee: Qorvo US, Inc.
    Inventors: Julio C. Costa, George Maxim, Dirk Robert Walter Leipold, Baker Scott
  • Patent number: 9917158
    Abstract: A semiconductor device can include a channel region with a first semiconductor material for a majority carrier in the channel region during operation (on state) of the device and a metal contact. A source/drain region can include a semiconductor material alloy including a second semiconductor material and at least one heterojunction located between the metal contact and the channel region, wherein the heterojunction forms a band-edge offset for the majority carrier that is less than or equal to about 0.2 eV.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: March 13, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jorge A. Kittl, Borna Josip Obradovic, Robert Christopher Bowen, Mark S. Rodder
  • Patent number: 9711599
    Abstract: A switching device, such as a barrier junction Schottky diode, has a body of silicon carbide of a first conductivity type housing switching regions of a second conductivity type. The switching regions extend from a top surface of the body and delimit body surface portions between them. A contact metal layer having homogeneous chemical-physical characteristics extends on and in direct contact with the top surface of the body and forms Schottky contact metal portions with the surface portions of the body and ohmic contact metal portions with the switching regions. The contact metal layer is formed by depositing a nickel or cobalt layer on the body and carrying out a thermal treatment so that the metal reacts with the semiconductor material of the body and forms a silicide.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: July 18, 2017
    Assignee: STMICROELECTRONICS S.R.L.
    Inventors: Mario Giuseppe Saggio, Simone Rascuna, Fabrizio Roccaforte
  • Patent number: 9543276
    Abstract: A chip-stacked semiconductor package including a first chip having a plurality of first real bump pads and a plurality of first dummy bump pads, a second chip on the first chip, the second chip including a plurality of real bumps and a plurality of bridge dummy bumps, the plurality of real bumps electrically connected to the plurality of first real bump pads, the plurality of bridge dummy bumps connected to the plurality of first dummy bump pads, and a sealing member sealing the first chip and the second chip may be provided.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 10, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-kun Jee, Tae-hong Min, Sun-kyoung Seo
  • Patent number: 9461135
    Abstract: A semiconductor device includes first, a second, and third semiconductor layers respectively made of a nitride semiconductor and stacked on a substrate, a drain electrode formed on the third semiconductor layer, a gate electrode formed on the third semiconductor layer, and a source electrode formed within an opening penetrating the third and second semiconductor layers and exposing the first semiconductor layer. The source electrode includes a first conductor layer in contact with the first semiconductor layer, and a second conductor layer stacked on the first conductor layer and in contact with the second semiconductor layer. A work function of a material forming the first conductor layer is smaller than that of a material forming the second conductor layer.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: October 4, 2016
    Assignee: FUJITSU LIMITED
    Inventor: Masahito Kanamura
  • Patent number: 9356141
    Abstract: The disclosure relates to a semiconductor device including a semiconductor body, having a first surface, a gate electrode structure, which includes polycrystalline silicon, of an IGFET in a first trench extending from the first surface into the semiconductor body. The device also includes a semiconductor element, which is different from the gate electrode structure of the IGFET and includes polycrystalline silicon, in a second trench extending from the first surface into the semiconductor body, wherein the polycrystalline silicon of the IGFET and of the semiconductor element different therefrom ends below a top side of an insulation layer adjoining the first surface of the semiconductor body.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 31, 2016
    Assignee: Infineon Technologies AG
    Inventors: Andrew Christopher Graeme Wood, Oliver Blank, Martin Poelzl, Martin Vielemeyer
  • Patent number: 9318211
    Abstract: Some embodiments include an apparatus having data lines coupled to memory cell strings and a selector configured to selectively couple one of the data lines to a node. The memory cell strings and the selector can be formed in the same memory array of the apparatus. Other embodiments including additional apparatus and methods are described.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: April 19, 2016
    Assignee: Micron Technology, Inc.
    Inventor: Toru Tanzawa
  • Patent number: 9263584
    Abstract: A single crystalline dielectric layer is provided on an insulator layer including an amorphous dielectric material. The single crystalline dielectric layer can be patterned into various crystalline dielectric portions including dielectric fins, dielectric nanowires, and a dielectric fin-plate assembly. A semiconductor material can be deposited on the single crystalline surfaces of the various crystalline dielectric portions by a selective epitaxial deposition process while not growing on the surfaces of the insulator layer. Single crystalline semiconductor material portions can be formed on the surfaces of the dielectric fins, around the dielectric nanowires, and on horizontal and vertical surfaces of the dielectric fin-plate assembly. Source and drain regions can be formed in the single crystalline semiconductor material portions, and gate electrodes can be formed to provide various field effect transistors.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: February 16, 2016
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Pouya Hashemi, Ali Khakifirooz, Alexander Reznicek
  • Patent number: 9219170
    Abstract: A trench Schottky rectifier device includes a substrate having a first conductivity type, a plurality of trenches formed in the substrate, and an insulating layer formed on sidewalls of the trenches. The trenches are filled with conductive structure. There is an electrode overlying the conductive structure and the substrate, and thus a Schottky contact forms between the electrode and the substrate. A plurality of embedded doped regions having a second conductivity type are formed in the substrate and located under the trenches. Each doped region and the substrate form a PN junction to pinch off current flowing toward the Schottky contact so as to suppress current leakage.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 22, 2015
    Assignee: PFC DEVICE HOLDINGS LTD
    Inventors: Kou-Liang Chao, Mei-Ling Chen, Tse-Chuan Su, Hung-Hsin Kuo
  • Patent number: 9196714
    Abstract: An embodiment of an IGBT device is integrated in a chip of semiconductor material including a substrate of a first type of conductivity, an active layer of a second type of conductivity formed on an inner surface of the substrate, a body region of the first type of conductivity extending within the active layer from a front surface thereof opposite the inner surface, a source region of the second type of conductivity extending within the body region from the front surface, a channel region being defined within the body region between the source region and the active layer, a gate element insulated from the front surface extending over the channel region, a collector terminal contacting the substrate on a rear surface thereof opposite the inner surface, an emitter terminal contacting the source region and the body region on the front surface, and a gate terminal contacting the gate element.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: November 24, 2015
    Assignee: STMicroelectronics S.r.l.
    Inventor: Davide Giuseppe Patti
  • Patent number: 9041160
    Abstract: A semiconductor integrated circuit device includes: a rectangular shaped semiconductor substrate; a metal wiring layer formed on or over the semiconductor substrate; and a passivation layer covering the metal wiring layer. A corner non-wiring region where no portion of the metal wiring layer is formed is disposed in a corner of the semiconductor substrate. A slit is formed in a portion of the metal wiring layer which is close to the corner of the semiconductor substrate. The passivation layer includes a first passivation layer which is formed on the metal wiring layer and a second passivation layer which is formed on the first passivation layer. The first passivation layer is formed of a material that is softer than a material of the second passivation layer.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 26, 2015
    Assignee: Rohm Co., Ltd.
    Inventors: Mitsuru Okazaki, Youichi Kajiwara, Naoki Takahashi, Akira Shimizu
  • Patent number: 9029235
    Abstract: A trench isolation metal-oxide-semiconductor (MOS) P-N junction diode device and a manufacturing method thereof are provided. The trench isolation MOS P-N junction diode device is a combination of an N-channel MOS structure and a lateral P-N junction diode, wherein a polysilicon-filled trench oxide layer is buried in the P-type structure to replace the majority of the P-type structure. As a consequence, the trench isolation MOS P-N junction diode device of the present invention has the benefits of the Schottky diode and the P-N junction diode. That is, the trench isolation MOS P-N junction diode device has rapid switching speed, low forward voltage drop, low reverse leakage current and short reverse recovery time.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: May 12, 2015
    Assignee: PFC Device Corp.
    Inventors: Mei-Ling Chen, Hung-Hsin Kuo, Kuo-Liang Chao
  • Patent number: 9000504
    Abstract: According to one embodiment, a nonvolatile semiconductor memory device includes a first stacked structure body, a first semiconductor layer, a first organic film, a first semiconductor-side insulating film, and a first electrode-side insulating film. The first stacked structure body includes a plurality of first electrode films stacked along a first direction and a first inter-electrode insulating film provided between the first electrode films. The first semiconductor layer is opposed to side faces of the first electrode films. The first organic film is provided between the side faces of the first electrode films and the first semiconductor layer and containing an organic compound. The first semiconductor-side insulating film is provided between the first organic film and the first semiconductor layer. The first electrode-side insulating film provided between the first organic film and the side faces of the first electrode films.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: April 7, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shigeki Hattori, Reika Ichihara, Masaya Terai, Hideyuki Nishizawa, Tsukasa Tada, Koji Asakawa, Hiroyuki Fuke, Satoshi Mikoshiba, Yoshiaki Fukuzumi, Hideaki Aochi
  • Patent number: 8929090
    Abstract: An object of the present invention is to propose a functional element built-in substrate which enables an electrode terminal of a functional element to be well connected to the back surface on the side opposite to the electrode terminal of the functional element, and which can be miniaturized.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: January 6, 2015
    Assignee: NEC Corporation
    Inventors: Yoshiki Nakashima, Shintaro Yamamichi, Katsumi Kikuchi, Kentaro Mori, Hideya Murai
  • Patent number: 8912588
    Abstract: A semiconductor memory device includes a bit line, an active region formed in a semiconductor substrate, a plug formed on the active region and connecting the bit line to the active region, a memory cell which includes a first gate insulating film on the active region, a charge storage layer on the first gate insulating film, a first insulating film on the charge storage layer, and a control gate electrode on the first insulating film, a select transistor formed between the plug and the memory cell on the active region and including a second gate insulating film on the active region, a first electrode layer on the second gate insulating film, a second insulating film on the first electrode layer, and a second electrode layer on the second insulating film, and a wiring formed above the active region between the plug and the second electrode layer of the select transistor.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: December 16, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Kazushige Kanda
  • Patent number: 8883580
    Abstract: Remote contacts to the polysilicon regions of a trench metal oxide semiconductor (MOS) barrier Schottky (TMBS) device, as well as to the polysilicon regions of a MOS field effect transistor (MOSFET) section and of a TMBS section in a monolithically integrated TMBS and MOSFET (SKYFET) device, are employed. The polysilicon is recessed relative to adjacent mesas. Contact of the source metal to the polysilicon regions of the TMBS section is made through an extension of the polysilicon to outside the active region of the TMBS section. This change in the device architecture relieves the need to remove all of the oxides from both the polysilicon and silicon mesa regions of the TMBS section prior to the contact step. As a consequence, encroachment of contact metal into the sidewalls of the trenches in a TMBS device, or in a SKYFET device, is avoided.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: November 11, 2014
    Assignee: Vishay-Siliconix
    Inventors: Deva N. Pattanayak, Kyle Terrill, Sharon Shi, Misha Lee, Yuming Bai, Kam Lui, Kuo-in Chen
  • Patent number: 8872247
    Abstract: Memory arrays having folded architectures and methods of making the same. Specifically, memory arrays having a portion of the transistors in a row that are reciprocated and shifted with respect to other transistors in the same row. Trenches formed between the rows may form a weave pattern throughout the array, in a direction of the row. Trenches formed between legs of the transistors may also form a weave pattern throughout the array in a direction of the row.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: October 28, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Shigeki Tomishima
  • Publication number: 20140284666
    Abstract: A transistor having at least one passivated Schottky barrier to a channel includes an insulated gate structure on a p-type substrate in which the channel is located beneath the insulated gate structure. The channel and the insulated gate structure define a first and second undercut void regions that extend underneath the insulated gate structure toward the channel from a first and a second side of the insulated gate structure, respectively. A passivation layer is included on at least one exposed sidewall surface of the channel and metal source and drain terminals are located on respective first and second sides of the channel, including on the passivation layer and within the undercut void regions beneath the insulated gate structure. At least one of the metal source and drain terminals comprises a metal that has a work function near a valence band of the p-type substrate.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventors: Daniel E. Grupp, Daniel J. Connelly