Magnetic head, method of manufacturing same, and head suspension assembly
First Claim
1. A method of manufacturing a magnetic head having a base, and a laminate stacked on said base and including a magneto-resistive device, said method comprising:
- a polishing step for mechanically polishing a surface of a structure including said base and said laminate close to a magnetic recording medium, said surface of said structure including an end face of said laminate including an end face of said magneto-resistive device and a surface of said base; and
a first etching step after said polishing step for selectively etching a first region on the surface of said structure close to the magnetic recording medium, said first region including the surface of said base but not including the end face of said magneto-resistive device.
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Accused Products
Abstract
A method of manufacturing a magnetic head manufactures a magnetic head having a base, and a laminate stacked on the base and including a magneto-resistive device. The method mechanically polishes a surface of a structure including the base and the laminate close to a magnetic recording medium, wherein the surface of the structure includes an end face of the laminate including an end face of the magneto-resistive device and a surface of the base. Next, the method selectively etches a first region on the surface of the structure close to the magnetic recording medium, wherein the first region includes the surface of the base but does not include the end face of the magneto-resistive device. Subsequently, the method entirely etches the surface of the structure close to the magnetic recording medium.
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Citations
18 Claims
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1. A method of manufacturing a magnetic head having a base, and a laminate stacked on said base and including a magneto-resistive device, said method comprising:
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a polishing step for mechanically polishing a surface of a structure including said base and said laminate close to a magnetic recording medium, said surface of said structure including an end face of said laminate including an end face of said magneto-resistive device and a surface of said base; and
a first etching step after said polishing step for selectively etching a first region on the surface of said structure close to the magnetic recording medium, said first region including the surface of said base but not including the end face of said magneto-resistive device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 18)
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11. A magnetic head comprising:
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a base having a surface for forming an air bearing surface directly or through a protection film, said surface being located close to a magnetic recording medium; and
a laminate stacked on said base and including a magneto-resistive device, wherein said surface of said base close to the magnetic recording medium differs in level from an end face of said magneto-resistive device close to the magnetic recording medium by 2 nm or less in absolute value. - View Dependent Claims (12)
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13. A magnetic head comprising:
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a base having a surface for forming an air bearing surface directly or through a protection film, said surface being located close to a magnetic recording medium; and
a laminate stacked on said base and including a magneto-resistive device, and a first and a second magnetic shield film formed on said base to sandwich said magneto-resistive device, wherein said surface of said base close to the magnetic recording medium differs in level from an end face of at least one of said first and second magnetic shield films close to the magnetic recording medium by 2 nm or less in absolute value. - View Dependent Claims (14, 15)
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16. A magnetic head comprising:
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a base having a surface for forming an air bearing surface directly or through a protection film, said surface being located close to a magnetic recording medium; and
a laminate stacked on said base and including a magneto-resistive device;
wherein said laminate includes a groove formed on the end face close to the magnetic recording medium, said groove extending along a boundary between said surface of said base close to the magnetic recording medium and said end face of said laminate close to the magnetic recording medium. - View Dependent Claims (17)
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Specification