3M Innovative Properties Company

Matthew Rc Atkinson

Jinwook Kim

Jung Ju Suh

Seong-Woo Woo

A magnetic film includes one or more magnetically conductive layers. Each magnetically conductive layer is cracked to form a plurality of first through-cracks defining a plurality of magnetically conductive segments. The first through-cracks extend along a first direction and form a first regular pattern along an orthogonal second direction at a first pitch P, such that a Fourier transform of the first regular pattern has a first peak along the second direction at a first spatial frequency corresponding to the first pitch P. The first through-cracks have an average length Lalong the first direction. L/Pis greater than or equal to 5.

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Grant, MN, United States of America

Matthew Rc Atkinson