公开(公告)号：US20200295761A1

公开(公告)日：2020-09-17

申请号：US16083978

申请日：2016-05-13

Applicant: NEC Corporation

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

IPC: H03K19/177

Abstract: A reconfigurable circuit comprising: 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 including 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：US20150340606A1

公开(公告)日：2015-11-26

申请号：US14655920

申请日：2014-01-15

Applicant: NEC CORPORATION

Inventor： Munehiro TADA ,  Toshitsugu SAKAMOTO ,  Naoki BANNO ,  Koichiro OKAMOTO

IPC: H01L45/00 ,  H01L27/24

CPC classification number: H01L45/126 ,  G11C13/0002 ,  G11C2213/15 ,  G11C2213/78 ,  H01L27/2418 ,  H01L27/2427 ,  H01L27/2436 ,  H01L27/2472 ,  H01L45/04 ,  H01L45/06 ,  H01L45/085 ,  H01L45/1233 ,  H01L45/1266 ,  H01L45/1273 ,  H01L45/146 ,  H01L45/1675 ,  H01L45/1683

Abstract: In switching elements each using a two-terminal-type variable resistance element, improper writing or any improper operation is often caused and the reliability of the switching elements cannot be improved easily. A switching element according to the present invention is equipped with a first variable resistance element equipped with a first input/output terminal and a first connection terminal, a second variable resistance element equipped with a second input/output terminal and a second connection terminal, and a rectifying element equipped with a control terminal and a third connection terminal, wherein the first connection terminal, the second connection terminal and the third connection terminal are connected to one another.

Abstract translation: 在使用两端型可变电阻元件的开关元件中，经常引起不正确的写入或不正确的操作，并且不容易改善开关元件的可靠性。 根据本发明的开关元件配备有配备有第一输入/输出端子和第一连接端子的第一可变电阻元件，配备有第二输入/输出端子和第二连接端子的第二可变电阻元件，以及 配备有控制端子和第三连接端子的整流元件，其中第一连接端子，第二连接端子和第三连接端子彼此连接。

公开(公告)号：US20150155487A1

公开(公告)日：2015-06-04

申请号：US14574666

申请日：2014-12-18

Applicant: NEC Corporation

Inventor： Munehiro TADA ,  Koichiro OKAMOTO ,  Toshitsugu SAKAMOTO ,  Hiromitsu HADA

IPC: H01L45/00

CPC classification number: H01L45/1616 ,  H01C7/006 ,  H01C7/18 ,  H01C17/08 ,  H01L45/04 ,  H01L45/085 ,  H01L45/1233 ,  H01L45/1253 ,  H01L45/14 ,  H01L45/1675

Abstract: A resistance changing element according to the present invention comprises a first electrode (101) and a second electrode (103); and an ion conducting layer (102) that is formed between the first electrode (101) and the second electrode (103) and that contains at least oxygen and carbon.

Abstract translation: 根据本发明的电阻改变元件包括第一电极（101）和第二电极（103）; 和形成在第一电极（101）和第二电极（103）之间并且至少含有氧和碳的离子传导层（102）。

公开(公告)号：US20210201996A1

公开(公告)日：2021-07-01

申请号：US16756554

申请日：2018-10-23

Applicant: NEC Corporation

Inventor： Toshitsugu SAKAMOTO ,  Naoki BANNO ,  Munehiro TADA ,  Yukihide TSUJI

IPC: G11C13/00 ,  H01L27/24

Abstract: Provided are a rewrite method for a variable resistance element that increases a rewrite count, and a non-volatile storage device using the variable resistance element. In the rewrite method for the variable resistance element, a variable resistance layer is disposed between a first electrode and a second electrode, and a write voltage is applied between the first electrode and the second electrode, thereby causing the resistance between the first electrode and the second electrode to reversibly change. After writing to the variable resistance element, the variable resistance element is read, the read current is measured, the measured read current is compared with a reference current, a condition of the writing is changed on the basis of the comparison results, and thereafter writing to the variable resistance element is performed again.

公开(公告)号：US20200266822A1

公开(公告)日：2020-08-20

申请号：US16648820

申请日：2018-09-14

Applicant: NEC Corporation

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

IPC: H03K19/185 ,  H03K19/173 ,  H03K19/17704 ,  G11C13/00 ,  H01L27/24 ,  H01L45/00 ,  H03K19/17728 ,  H03K19/17756 ,  G06F7/57

Abstract: This logic integrated circuit has a plurality of first switch cells including variable resistance elements and a plurality of second switch cells including variable resistance elements. The logic integrated circuit comprises: a first output port and a second output port; the plurality of first switch cells for switching the electrical connections between a first wire and a third wire; the plurality of second switch cells for switching the electrical connections between a second wire and the third wire; a first control transistor which is connected to the first wire and which is for switching the electrical connections between the first wire and a first power line supplying power to the first wire; and a second control transistor which is connected to the second wire and which is for switching the electrical connections between the second wire and the first power line supplying power to the second wire.

公开(公告)号：US20200091914A1

公开(公告)日：2020-03-19

申请号：US16494419

申请日：2017-03-17

Applicant: NEC CORPORATION

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

IPC: H03K19/173 ,  H03K19/177 ,  G06F21/76

Abstract: A reconfigurable circuit includes: a plurality of first lines; one or more second lines; a non-volatile resistive cell coupling one of the first lines with one of the second lines at each cross-point between the first lines and the second lines; and first switch elements including first terminals respectively coupled to the first lines, wherein each of the first switch elements is separately turned on or off in accordance with a control signal applied thereto.

公开(公告)号：US20190013811A1

公开(公告)日：2019-01-10

申请号：US16066738

申请日：2017-01-18

Applicant: NEC Corporation

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

IPC: H03K19/177 ,  G11C13/00 ,  H01L27/24

Abstract: The purpose of the present invention is to increase the efficiency with which silicon on a chip is used, and to easily reduce the size of a logic cell. To accomplish the purpose, this reconfigurable circuit includes: a logic memory unit configured from a resistance change element, and positioned distributed into at least two units; a logic unit for referencing the logic memory unit and performing logical operations; and a signal path switching unit for receiving the results of the logical operation of the logic unit and outputting said results to the outside. The logic memory part and the signal path switching part constitute part of a crossbar switching circuit, and share write wiring to the resistance change element.

公开(公告)号：US20170186947A1

公开(公告)日：2017-06-29

申请号：US15312730

申请日：2015-05-20

Applicant: NEC CORPORATION

Inventor： Munehiro TADA ,  Toshitsugu SAKAMOTO

IPC: H01L45/00 ,  H01L27/10

CPC classification number: H01L45/1233 ,  H01L27/101 ,  H01L45/085 ,  H01L45/1253 ,  H01L45/1266 ,  H01L45/14 ,  H01L45/1616 ,  H01L45/1625 ,  H01L45/1675

Abstract: The semiconductor device according to the present invention has an upper electrode, a first lower layer wiring that also functions as a lower electrode, an electrical resistance-changing film interposed between the upper electrode and the first lower layer wiring, a second lower layer wiring, and a contact plug, the contact plug connecting to the upper electrode and to the second lower layer wiring. The present invention yields a semiconductor device with which it is possible to dispose elements in high density while maintaining the reliability and manufacturing yield of the electrical resistance-changing element.

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.