Abstract:
According to one embodiment, a magnetic recording device includes a magnetic recording medium group and a magnetic head group. The magnetic recording medium group includes a first magnetic recording medium, a plurality of second magnetic recording media, and a plurality of third magnetic recording media. The magnetic head group includes a first magnetic head, a plurality of second magnetic heads, and a plurality of third magnetic heads. The first magnetic head is configured to record data on the first magnetic recording medium by a first method. One of the plurality of second magnetic heads is configured to record data on one of the plurality of second magnetic recording media by a second method different from the first method. One of the plurality of third magnetic heads is configured to record data on one of the plurality of third magnetic recording media by the second method.
Abstract:
According to one embodiment, a photomask includes a plurality of unit regions arranged in a first direction and a second direction crossing the first direction. Each of the unit regions includes a first region having a first light-shielding rate, and a second region having a second light-shielding rate different from the first light-shielding rate. The second region is provided around the first region. The unit regions include a first unit region and a second unit region having same size each other. A distance between the first unit region and a center of a range in which the unit regions are arranged is different from a distance between the second unit region and the center. A light-shielding rate of the first unit region is different from a light-shielding rate of the second unit region.
Abstract:
According to one embodiment, a sensor includes a structure body, an element portion, and a power line. The structure body includes a supporter and a film portion. The film portion is supported by the supporter and includes an end portion. The end portion is aligned with a first direction and supported by the supporter. The element portion includes a first element provided at the film portion. The first element includes a first magnetic layer, a first opposing magnetic layer provided between the first magnetic layer and the film portion, and a first nonmagnetic layer provided between the first magnetic layer and the first opposing magnetic layer. A second direction from the first opposing magnetic layer toward the first magnetic layer crosses the first direction. The power line is electrically insulated from the element portion. The power line includes a portion aligned with the first direction.
Abstract:
According to one embodiment, a sensor includes a deformable film portion, a first sensing element and a second sensing element. The first sensing element is fixed to the film portion, and includes a first magnetic layer of a first material, a first opposing magnetic layer, and a first intermediate layer. The first intermediate layer is provided between the first magnetic layer and the first opposing magnetic layer. The second sensing element is fixed to the film portion, and includes a second magnetic layer of a second material, a second opposing magnetic layer, and a second intermediate layer. The second material is different from the first material. The second intermediate layer is provided between the second magnetic layer and the second opposing magnetic layer.
Abstract:
According to one embodiment, a sensor includes a film portion and a first sensor portion. The film portion is deformable. The first sensor portion is provided at the film portion. The first sensor portion includes a first conductive layer, a second conductive layer, a first magnetic layer, a second magnetic layer, and a first intermediate layer. The second conductive layer is provided between the first conductive layer and the film portion. The first magnetic layer is provided between the first conductive layer and the second conductive layer. The second magnetic layer is provided between the first magnetic layer and the second conductive layer. The first intermediate layer is provided between the first magnetic layer and the second magnetic layer. A curvature of the first conductive layer is different from a curvature of at least a portion of the film portion.
Abstract:
According to one embodiment, a sensor includes a deformable film portion, a first sensing element and a second sensing element. The first sensing element is fixed to the film portion, and includes a first magnetic layer of a first material, a first opposing magnetic layer, and a first intermediate layer. The first intermediate layer is provided between the first magnetic layer and the first opposing magnetic layer. The second sensing element is fixed to the film portion, and includes a second magnetic layer of a second material, a second opposing magnetic layer, and a second intermediate layer. The second material is different from the first material. The second intermediate layer is provided between the second magnetic layer and the second opposing magnetic layer.
Abstract:
A pressure sensor of an embodiment includes a support portion, a transformable membrane part and a sensor portion. The membrane part includes an end portion supported by the support portion, and a first area and a second area. The first area is positioned between a center of the membrane part and the end portion and has a first rigidity. The second area is positioned between the first area and the end portion, and has a second rigidity lower than the first rigidity. The sensor portion is provided at the first area and includes a first magnetic layer, a second magnetic layer and a first intermediate layer provided between the first magnetic layer and the second magnetic layer. An end-side distance between the first area and the end portion is shorter than a center-side distance between the second area and the center of the membrane part.
Abstract:
According to one embodiment, a pressure sensor includes: a support unit; a substrate; and a plurality of sensing elements. The substrate is supported by the support unit and deformable. The plurality of sensing elements are provided on a part of the substrate. The sensing element includes a first magnetic layer, a second magnetic layer, and an intermediate layer. Magnetization of the first magnetic layer changes according to deformation of the substrate. Magnetization of the second magnetic layer is fixed. The intermediate layer is provided between the first magnetic layer and the second magnetic layer. A direction of the magnetization of the second magnetic layer of a first sensing element among the plurality of sensing elements is different from a direction of the magnetization of the second magnetic layer of a second sensing element among the plurality of sensing elements.