US Patent Application 18324609. INDUCTOR simplified abstract
Contents
INDUCTOR
Organization Name
Inventor(s)
Kazuhiro Yoshidome of Tokyo (JP)
INDUCTOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18324609 titled 'INDUCTOR
Simplified Explanation
- The patent application describes an inductor that consists of a magnetic core portion and a coil portion. - The magnetic core portion is made up of a multilayer film, with alternating layers of a nanogranular magnetic film and a soft magnetic alloy film. - The nanogranular magnetic film has a unique structure where nano-domains of a first phase are dispersed in a second phase. - The first phase contains Fe and/or Co, while the second phase contains O, N, and/or F. - The volume ratio of the first phase to the total volume of the first and second phases is limited to 60% or less. - The soft magnetic alloy film contains Fe and/or Co, and the total amount of Fe, Co, and Ni in the film is at least 70%. - The innovation in this patent application lies in the specific composition and structure of the magnetic core portion, which aims to improve the performance and efficiency of the inductor.
Original Abstract Submitted
An inductor includes a magnetic core portion and a coil portion. The magnetic core portion is a multilayer film in which a nanogranular magnetic film and a soft magnetic alloy film are alternately stacked. The nanogranular magnetic film has a structure in which nano-domains of a first phase are dispersed in a second phase. The first phase contains one or more selected from Fe and Co, and the second phase contains one or more selected from O, N, and F. The volume ratio of the first phase to the total volume of the first phase and the second phase is 60% or less. The soft magnetic alloy film contains one or more selected from Fe and Co. The total amount of Fe, Co, and Ni in the soft magnetic alloy film is 70 at % or more.
