公开(公告)号：US20240196521A1

公开(公告)日：2024-06-13

申请号：US18588294

申请日：2024-02-27

Applicant: NEC Corporation

Inventor： Yoshihito Hashimoto ,  Tsuyoshi Yamamoto ,  Kohei Matsuura

IPC: H05K1/02 ,  H05K1/11 ,  H05K1/18

CPC classification number: H05K1/0237 ,  H05K1/115 ,  H05K1/183

Abstract: A sample holder includes a base comprising a support structure and a printed circuit board (PCB) in contact with the base. The PCB includes: a dielectric; a front-surface ground (GND) formed on a front surface of the dielectric; a back-surface GND formed on a back surface of the dielectric; a through hole penetrating from the front-surface GND to the back-surface GND, the through hole in which a chip is disposed, and a conductor that electrically connects the front-surface GND and the back-surface GND on an end face of the through hole. At least a part of the base below the through hole has a cavity. The support structure that supports a surface of the chip and is electrically connected to the base. The support structure is disposed in the cavity.

公开(公告)号：US11916513B2

公开(公告)日：2024-02-27

申请号：US18134145

申请日：2023-04-13

Applicant: NEC Corporation

Inventor： Yoshihito Hashimoto ,  Tsuyoshi Yamamoto ,  Tomohiro Yamaji

IPC: H03B15/00 ,  H01L39/22 ,  H10N60/12

CPC classification number: H03B15/003 ,  H10N60/12

Abstract: An oscillator in which crosstalk can be reduced is provided. An oscillator includes a SQUID, a transmission line connected to the SQUID, a ground plane, and a first connection circuit disposed in a vicinity of a node of an electric field of a standing wave that is generated when the oscillator is oscillating, the first connection circuit connecting parts of the ground plane located on both sides of the transmission line to each other.

公开(公告)号：US20220236342A1

公开(公告)日：2022-07-28

申请号：US17583734

申请日：2022-01-25

Applicant: NEC Corporation

Inventor： Yoshihito Hashimoto ,  Tsuyoshi Yamamoto ,  Tomohiro Yamaji

IPC: G01R33/035 ,  H01L39/22 ,  H01L39/02 ,  G06N10/70

Abstract: An oscillator in which crosstalk can be reduced is provided. An oscillator includes a ground plane made of a superconductor, a conductive member spaced apart from and surrounded by the ground plane, a SQUID of which one end is connected to the conductive member and the other end is connected to the ground plane, a first connection circuit made of a superconductor, connecting parts of the ground plane located on both sides of a vicinity of a connection part between the conductive member and the SQUID to each other, and a superconducting loop circuit surrounding the SQUID and using the ground plane and the first connection circuit.