The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 2023
Filed:
Nov. 07, 2019
Rogers Corporation, Chandler, AZ (US);
Yajie Chen, Brighton, MA (US);
Xiaoyu Zhang, Suzhou, CN;
Li Zhang, Sichuan, CN;
Yuanyuan Xing, Suzhou, CN;
ROGERS CORPORATION, Chandler, AZ (US);
Abstract
A multilayer film includes a substrate; a first magnetic layer disposed on the substrate and a second magnetic layer disposed on the first magnetic layer. The first magnetic layer includes FeNBM, wherein M is Si, Ta, Zr, Ti, Co, or a combination thereof. The second magnetic layer includes FeNor FeNTa. The multilayer magnetic film has, over a frequency range of 50 MHz to 10 GHz, a magnetic permeability of greater than or equal to 1800 over a selected frequency band in the frequency range; a magnetic loss tangent of less than or equal to 0.3 over a selected frequency band in the frequency range; and a cutoff frequency of greater than or equal to 1 GHz, or greater than or equal to 2 GHz.