Orienting magnetic flakes within a binder layer
AssigneeViavi Solutions Inc.
InventorMatthew R. Witzman
Life of this patent
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Abstract
A deposition device may deposit, on a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes and may cause, when a temperature of the binder layer satisfies a temperature threshold (e.g., a Curie temperature of the first set of magnetic flakes), a magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the magnetic field. The deposition device may cause, when the temperature of the binder layer ceases to satisfy the temperature threshold, another magnetic field to be applied to the binder layer to cause only the second set of magnetic flakes to be oriented according to the other magnetic field.
Claims20
A method, comprising:
- depositing, by a deposition device and on a surface of a substrate, a binder layer that includes a plurality of magnetic flakes;
- cooling, by the deposition device, the binder layer to cause a temperature of the binder layer to satisfy a temperature threshold;
- applying, by the deposition device, a first magnetic field to the binder layer to cause a first magnetic flake, of the plurality of magnetic flakes, to align with a first magnetic field line of the first magnetic field;
- applying, by the deposition device, a second magnetic field to the binder layer to cause a second magnetic flake, of the plurality of magnetic flakes, to align with a second magnetic field line of the second magnetic field,
- wherein, during application of the second magnetic field to the binder layer, the first magnetic flake is within a range of the second magnetic field and is not susceptible to being oriented according to the second magnetic field;
- and
- curing, by the deposition device, the binder layer.
A method, comprising:
- depositing, by a deposition device and on a surface of a substrate, a binder layer that includes a first set of magnetic flakes and a second set of magnetic flakes;
- causing, by the deposition device and when a temperature of the binder layer satisfies a temperature threshold, a first magnetic field to be applied to the binder layer to cause the first set of magnetic flakes and the second set of magnetic flakes to be oriented according to the first magnetic field;
- causing, by the deposition device, a second magnetic field to be applied to the binder layer to cause the second set of magnetic flakes to be oriented according to the second magnetic field,
- wherein, during application of the second magnetic field to the binder layer, the first set of magnetic flakes are in a range of the second magnetic field and are not susceptible to being oriented according to the second magnetic field;
- and
- causing, by the deposition device, an orientation of the first set of magnetic flakes and an orientation of the second set of magnetic flakes to be fixed.
A method, comprising:
- depositing, by a deposition device and on a region of a substrate, a binder layer that includes a plurality of magnetic flakes;
- applying, by the deposition device, a first magnetic field to the binder layer to cause a first magnetic flake, of the plurality of magnetic flakes, to align with a first magnetic field line of the first magnetic field;
- and
- applying, by the deposition device, a second magnetic field to the binder layer to cause a second magnetic flake, of the plurality of magnetic flakes, to align with a second magnetic field line of the second magnetic field,
- wherein, during application of the second magnetic field to the binder layer, the first magnetic flake is within a range of the second magnetic field and is not susceptible to being oriented according to the second magnetic field.
Dependencies are inferred from the claim text.