Taiyo Yuden Co., Ltd.

Shunta Ishiwata

Takashi Nakajima

Shinsuke Takeoka

An inductor includes a magnetic base body including soft magnetic metal particles containing iron, first and second external electrodes provided on the magnetic base body, and an internal conductor provided in the magnetic base body, with one end thereof electrically connected to the first external electrode and the other end thereof electrically connected to the second external electrode, the internal conductor extending linearly from the first external electrode to the second external electrode in plan view. The magnetic base body is configured so that a peak intensity ratio is 2 or more between a peak intensity of a first peak and a peak intensity of a second peak in a Raman spectrum obtained by using an excitation laser with a wavelength of 488 nm. The first peak is around a wave number of 712 cm, and the second peak is around a wave number of 1320 cm.

Inductor

A magnetic base body according to one embodiment of the invention includes soft magnetic metal particles that have an insulating film on their surfaces. In a Raman spectrum obtained by observing light scattered when the magnetic base body is irradiated with an excitation laser with a wavelength of 488 nm, a peak intensity ratio. that is defined as a ratio of the peak intensity of a first peak existing at around a wave number of 712 cmto the peak intensity of a peak existing at around a wave number of 1320 cm, is 1 to 70.

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Tokyo, Japan

Shunta Ishiwata