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US 12,406,688 B2Granted
Embedded electromagnetic interference shield
AssigneeInternational Business Machines Corporation
InventorsJason Liang, Icko E. T. Iben, Hoodin Hamidi
Life of this patent
Estimating the term…
Abstract
Provided are devices for use in a magnetic tape head, a magnetic tape head, and methods for forming the same. A device includes a chiplet including at least one of a reader and a writer. The device also includes an electromagnetic interference (EMI) shield embedded in the chiplet. The EMI shield is configured to inhibit electromagnetic interference during operation of the at least one of the reader and the writer.
Claims20
A device for use in a magnetic tape head, comprising:
- a chiplet including a substrate and at least one writer positioned on the substrate;
- and
- an electromagnetic interference shield embedded in the chiplet, the electromagnetic interference shield configured to inhibit electromagnetic interference during operation of the at least one writer;
- and
- an undercoat region on a surface of the substrate, the undercoat region comprising an insulating material, the undercoat region extending between the substrate and the at least one writer;
- wherein at least a portion of the electromagnetic interference shield is positioned between the surface of the substrate and the at least one writer;
- wherein the at least a portion of electromagnetic interference shield is sandwiched directly between a first part of the undercoat region and a second part of the undercoat region, the first part positioned between the at least a portion of the electromagnetic interference shield and the surface of the substrate, the second part positioned between the at least a portion of the electromagnetic interference shield and the at least one writer;
- and
- wherein no reader is positioned between the at least one writer and the substrate along a line orthogonal to the surface of the substrate extending through the at least one writer.
6 more elements
A device comprising:
- a module comprising a substrate and a row of writers on a surface of the substrate;
- an undercoat region on a surface of the substrate, the undercoat region comprising an insulating material, the undercoat region extending between the substrate and the row of writers;
- a closure positioned so that the row of writers is positioned between the closure and the substrate;
- an electromagnetic interference shield configured to inhibit electromagnetic interference, wherein at least a portion of the electromagnetic interference shield is positioned between the surface of the substrate and the row of writers;
- wherein the at least a portion of the electromagnetic interference shield is embedded between a first part of the undercoat region and a second part of the undercoat region, the first part positioned between the electromagnetic interference shield and the surface of the substrate, the second part positioned between the electromagnetic interference shield and the row of writers;
- and
- wherein no row of readers is positioned between the row of writers and the substrate.
4 more elements
Dependencies are inferred from the claim text.