公开(公告)号：US20220208820A1

公开(公告)日：2022-06-30

申请号：US17559135

申请日：2021-12-22

Applicant: TDK CORPORATION

Inventor： Hideaki FUKUZAWA ,  Dai MATSUOKA ,  Tomohito MIZUNO ,  Tetsuya SHIBATA

IPC: H01L27/146 ,  H01L43/02 ,  H01L43/08 ,  H01L27/22

Abstract: An optical sensor includes a wavelength filter configured to transmit light in a specific wavelength range and a magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer. The light passing through the wavelength filter is applied to the magnetic element and the light applied to the magnetic element is detected.

公开(公告)号：US20250133851A1

公开(公告)日：2025-04-24

申请号：US19005156

申请日：2024-12-30

Applicant: TDK CORPORATION

Inventor： Hideaki FUKUZAWA ,  Dai MATSUOKA ,  Tomohito MIZUNO ,  Tetsuya SHIBATA

IPC: H10F39/00 ,  G11C11/16 ,  H10B61/00 ,  H10N50/10 ,  H10N50/80

Abstract: An optical sensor includes a wavelength filter configured to transmit light in a specific wavelength range and a magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer. The light passing through the wavelength filter is applied to the magnetic element and the light applied to the magnetic element is detected.