Pressure sensor, microphone, blood pressure sensor, and touch panel
First Claim
1. A pressure sensor, comprising:
- a base unit;
a film unit provided in the base unit, the film unit being flexible; and
a plurality of sensing elements provided on the film unit radially with respect to a centroid of the film unit, the plurality of sensing elements having a first side and a second side intersecting the first side,each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided on the film unit, and an intermediate layer provided between the first magnetic layer and the second magnetic layer, the first magnetic layer and the second magnetic layer being free magnetic layers,each of the plurality of sensing elements having a shape anisotropy characterized by a length of the first side being longer than a length of the second side,the plurality of sensing elements being provided at lines having radial configurations extending from the centroid to have a prescribed angle between the first side and the line.
1 Assignment
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Accused Products
Abstract
According to one embodiment, a pressure sensor includes a base unit, a film unit, and a plurality of sensing elements. The plurality of sensing elements is provided on the film unit radially with respect to a centroid of the film unit. The plurality of sensing elements has a first side and a second side intersecting the first side. Each of the plurality of sensing elements includes a first magnetic layer, a second magnetic layer, and an intermediate layer. Each of the plurality of sensing elements has a shape anisotropy characterized by a length of the first side being longer than a length of the second side intersecting the first side. The plurality of sensing elements is provided at lines having radial configurations extending from the centroid to have a prescribed angle between the first side and the line.
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Citations
20 Claims
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1. A pressure sensor, comprising:
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a base unit; a film unit provided in the base unit, the film unit being flexible; and a plurality of sensing elements provided on the film unit radially with respect to a centroid of the film unit, the plurality of sensing elements having a first side and a second side intersecting the first side, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided on the film unit, and an intermediate layer provided between the first magnetic layer and the second magnetic layer, the first magnetic layer and the second magnetic layer being free magnetic layers, each of the plurality of sensing elements having a shape anisotropy characterized by a length of the first side being longer than a length of the second side, the plurality of sensing elements being provided at lines having radial configurations extending from the centroid to have a prescribed angle between the first side and the line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 18, 19, 20)
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12. A pressure sensor, comprising:
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a base unit; a hollow portion provided in the base unit; a film unit provided in the base unit, the film unit being flexible; and a plurality of sensing elements provided on the film unit, the plurality of sensing elements having a first side and a second side intersecting the first side, each of the plurality of sensing elements including a first magnetic layer, a second magnetic layer provided on the film unit, and an intermediate layer provided between the first magnetic layer and the second magnetic layer, the first magnetic layer and the second magnetic layer being free magnetic layers, each of the plurality of sensing elements having a shape anisotropy characterized by a length of the first side being longer than a length of the second side, each of the plurality of sensing elements being provided along a circumferential edge of an opening of the hollow portion. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification