Magneto-optical head and method of making coil for the same
First Claim
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1. A magneto-optical head comprising:
- a slider held in facing relation to a storage medium;
an objective lens supported by the slider for concentrating light rays;
a coil provided with a center through which the light rays pass, the coil including a first conductive pattern and a second conductive pattern which is closer to the storage medium than the first conductive pattern is; and
a transparent insulating layer enclosing the coil;
wherein the second conductive pattern is smaller in inner diameter than the first conductive pattern, the insulating layer filling the center of the coil.
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Abstract
A magneto-optical head includes a slider, an objective lens, a coil and a transparent insulating layer. The coil is provided with upper and lower conductive patterns, wherein the lower pattern is brought closer to a storage medium than the upper pattern is. The lower pattern is made smaller in inner diameter than the upper pattern. The insulating layer fills the center of the coil.
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Citations
16 Claims
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1. A magneto-optical head comprising:
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a slider held in facing relation to a storage medium;
an objective lens supported by the slider for concentrating light rays;
a coil provided with a center through which the light rays pass, the coil including a first conductive pattern and a second conductive pattern which is closer to the storage medium than the first conductive pattern is; and
a transparent insulating layer enclosing the coil;
wherein the second conductive pattern is smaller in inner diameter than the first conductive pattern, the insulating layer filling the center of the coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of making a coil for a magneto-optical head comprising the steps of:
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forming a first conductive pattern on a transparent substrate;
forming a first transparent insulating layer filling a center of the first conductive pattern;
forming a second conductive pattern on the first insulating layer, the second conductive pattern being smaller in inner diameter than the first conductive pattern; and
forming a second transparent insulating layer filling a center of the second conductive pattern. - View Dependent Claims (14, 15, 16)
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Specification