公开(公告)号：US20230320046A1

公开(公告)日：2023-10-05

申请号：US18102209

申请日：2023-01-27

Applicant: NEC Corporation

Inventor： Ayuka TADA ,  Tetsuro Sato

IPC: H05K9/00 ,  H01B12/02

CPC classification number: H05K9/00 ,  H01B12/02

Abstract: An airbridge includes first and second bridge abutments contacted with first and second conductors opposing each other via a gap, with a third conductor extending therein, first and second bridge piers rising from the first and second bridge abutments, and a bridge girder part supported by the first and second bridge piers in air to stride over the third conductor, wherein first and intersection edges, at which the first and second bridge abutment intersect with bases of the first and second bridge pier, is of a convex shape protruding toward one side from first and second virtual straight lines each connecting end points at which both sides of the first and second bridge abutments intersect with the first and second intersection edge, respectively.

公开(公告)号：US20210020238A1

公开(公告)日：2021-01-21

申请号：US16980211

申请日：2018-03-23

Applicant: NEC Corporation

Inventor： Xu BAI ,  Toshitsugu SAKAMOTO ,  Yukihide TSUJI ,  Makoto MIYAMURA ,  Ryusuke NEBASHI ,  Ayuka TADA

IPC: G11C13/00 ,  H03M5/02 ,  H03K19/1776

Abstract: A reconfigurable circuit includes: a complementary resistive switch including a first resistive switch, a second resistive switch and a selection transistor, wherein a first terminal of the first resistive switch is connected to a first terminal of the second resistive switch and connected to a first terminal of the selection transistor; a first current source having a first terminal connected to a second terminal of the first resistive switch and a second terminal connected to a ground voltage line; a second current source having a first terminal connected to a second terminal of the second resistive switch and a second terminal connected to the ground voltage line; and a resistor having a first terminal connected to a second terminal of the selection transistor and a second terminal connected to a power voltage line.

公开(公告)号：US20200295764A1

公开(公告)日：2020-09-17

申请号：US16083965

申请日：2017-04-06

Applicant: NEC Corporation

Inventor： Xu BAI ,  Toshitsugu SAKAMOTO ,  Yukihide TSUJI ,  Makoto MIYAMURA ,  Ayuka TADA ,  Ryusuke NEBASHI

IPC: H03K19/17736 ,  H03K19/17796 ,  H03K19/17704 ,  H03K19/17784 ,  H03K19/173

Abstract: A reconfigurable circuit includes: a first line; a first switch element disposed between the first line and a first power source line of first voltage; a second line; a second switch element disposed between the second line and a second power source line of second voltage which is different from the first voltage; and a resistive switch assembly disposed between the first line and the second line. The resistive switch assembly includes: a first non-volatile resistive switch; and a second non-volatile resistive switch whose first end is coupled to a first end of the first non-volatile resistive switch. The second end of the first non-volatile resistive switch is coupled to the first line, and the second end of the second non-volatile resistive switch is coupled to the second line.

公开(公告)号：US20190180818A1

公开(公告)日：2019-06-13

申请号：US16324782

申请日：2017-09-11

Applicant: NEC Corporation

Inventor： Makoto MIYAMURA ,  Ryusuke NEBASHI ,  Toshitsugu SAKAMOTO ,  Yukihide TSUJI ,  Xu BAI ,  Ayuka TADA

IPC: G11C13/00

Abstract: In order to provide a highly reliable crossbar circuit that enables salvation of reversal of a resistive state of a variable resistance element, the semiconductor device has a configuration obtained by parallelly arranging two unit elements, each including variable-resistance two-terminal elements connected in series, the semiconductor device being provided with: a unit element group being connected to a first wiring and a second wiring; a first programming driver that changes, via the first wiring, a resistive state of the two-terminal element constituting the unit element group; a first selection transistor being connected to the first wiring and the first programming driver; a second programming driver that changes, via the second wiring, a resistive state of the two-terminal element constituting the unit element group; and a second selection transistor being connected to the second wiring and the second programming driver.

公开(公告)号：US20190052273A1

公开(公告)日：2019-02-14

申请号：US15752330

申请日：2016-08-31

Applicant: NEC Corporation

Inventor： Ayuka TADA ,  Noboru SAKIMURA ,  Makoto MIYAMURA ,  Yukihide TSUJI ,  Ryusuke NEBASHI ,  Xu BAI ,  Toshitsugu SAKAMOTO

IPC: H03K19/177 ,  G06F17/50 ,  H01L27/24 ,  H01L45/00

Abstract: An object of the present invention is to provide a method for effectively performing characterization for circuit verification by static timing analysis, of a programmable logic integrated circuit including a crossbar switch including a resistance-variable element, and a logic circuit logically configured with the crossbar switch, wherein: the programmable logic integrated circuit is divided into a plurality of leaf cells including a plurality of load circuits including a part of the crossbar switch, and a power supply element input to the crossbar switch; the leaf cell is divided into delay paths each including a base leaf cell and a correction leaf cell; and circuit verification is performed based on a delay information library in which a delay time for the base leaf cell and a correction delay for the correction leaf cell are integrated into a delay time for the leaf cell.

公开(公告)号：US20180157779A1

公开(公告)日：2018-06-07

申请号：US15576947

申请日：2016-05-23

Applicant: NEC Corporation

Inventor： Noboru SAKIMURA ,  Yukihide TSUJI ,  Ayuka TADA ,  Xu BAI ,  Makoto MIYAMURA ,  Ryusuke NEBASHI

IPC: G06F17/50 ,  H03K19/003 ,  G11C7/22

Abstract: Provided is a programmable logic integrated circuit wherein even if a failure occurs in any resistance-variable element, remedy would be possible and hence the improvement of reliability has been achieved. In a programmable logic integrated circuit comprising resistance-variable elements, when the states of the resistance-variable elements are to be changed according to externally inputted configuration information, a control means uses a reading means to read the states of the respective resistance-variable elements, and then uses a writing means to change only the states of resistance-changing elements that are different from a state indicated by the configuration information.

公开(公告)号：US20170249981A1

公开(公告)日：2017-08-31

申请号：US15519851

申请日：2015-08-31

Applicant: NEC Corporation ,  TOHOKU UNIVERSITY

Inventor： Ryusuke NEBASHI ,  Noboru SAKIMURA ,  Yukihide TSUJI ,  Ayuka TADA ,  Hideo OHNO

IPC: G11C11/16 ,  H01L27/22 ,  H01L43/08 ,  G11C11/15 ,  H01L27/105 ,  H01L29/82

CPC classification number: G11C11/16 ,  G11C11/15 ,  G11C11/1675 ,  H01L27/105 ,  H01L27/222 ,  H01L29/82 ,  H01L43/08

Abstract: In order to stably write data into a magnetic memory that uses in-plane current-induced perpendicular switching of magnetization to write data, the magnetic memory includes a recording layer formed as a perpendicular magnetization film, an adjacent layer joined to an upper surface or a lower surface of the recording layer, an external magnetic field application part configured to apply a first external magnetic field to the recording layer in a first direction which is an in-plane direction of the recording layer, and a current application part configured to allow a write current to flow through the adjacent layer in the first direction or a second direction which is opposite to the first direction. The external magnetic field application part is configured to switch a direction of a second external magnetic field applied in a direction perpendicular to the first direction in accordance with a direction of the write current.