公开(公告)号：US11358858B2

公开(公告)日：2022-06-14

申请号：US16751567

申请日：2020-01-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Amir Rahafrooz ,  Thomas Kieran Nunan ,  Diego Emilio Serrano ,  Ijaz Jafri

IPC: B81B3/00 ,  B81C1/00 ,  G01C19/5719

Abstract: A method of manufacturing a semiconductor device includes providing a semiconductor layer having a first-type region and a second-type region that are stacked and interface with each other to form a p-n junction, the first-type region defining a first side of the semiconductor layer and the second-type region defining a second side of the semiconductor layer. The method further includes providing an insulating layer on the second side of the semiconductor layer and etching the semiconductor layer from the first side of the semiconductor layer toward the second side of the semiconductor layer to form a trench. The first-type region corresponds to one of a n-type region and a p-type region, and the second-type region corresponds to the other of the n-type region and the p-type region.

公开(公告)号：US12244315B2

公开(公告)日：2025-03-04

申请号：US18149275

申请日：2023-01-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Duane Younkin ,  Ronald Joseph Lipka ,  Ryan Hennessy ,  Diego Emilio Serrano ,  Chihchuan Che ,  Amir Rahafrooz ,  Mohammad Maymandi Nejad

IPC: H03K5/00 ,  H03K21/02 ,  H03L1/02 ,  H03L7/083

Abstract: Systems and methods disclosed herein include a correction circuit. The correction circuit may include frequency division circuitry that is configured to receive and condition a reference signal. The correction circuit may include drive circuitry that is configured to receive the reference signal. The correction circuit may include a first resonator that is configured to receive the reference signal. The correction circuit may include sense circuitry that is configured to receive the reference signal from the first resonator. The correction circuit may include phase detector circuitry that is configured to generate at least one output signal based on receipt of a plurality of input signals from the drive circuitry and the sense circuitry. The correction circuit may include a proportional integral derivative controller that is configured to generate a temperature correction signal to correct frequency error in an oscillator based on receipt of the at least one output signal.

公开(公告)号：US11725941B2

公开(公告)日：2023-08-15

申请号：US17420751

申请日：2019-12-27

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Amir Rahafrooz ,  Diego Emilio Serrano ,  Ijaz Hussain Jafri

IPC: G01C19/5712 ,  G01P1/00 ,  G01P15/125

CPC classification number: G01C19/5712 ,  G01P1/00 ,  G01P15/125

Abstract: A sensing device includes a resonant member that is movable in a first mode and a second mode, and an electrode. The resonant member has a capacitive surface portion that faces and is capacitively coupled to a capacitive surface portion of the electrode. Displacement for each point along the capacitive surface portion of the resonant member in the first mode is substantially tangent to the point.