Mechanism to shift the head span of a tape head at a wafer level
AssigneeInternational Business Machines Corporation
InventorsIcko E. T. Iben, Jason Liang, Hoodin Hamidi
Life of this patent
Estimating the term…
Abstract
Provided are a magnetic tape head, a magnetic tape drive, and a computational device in which the magnetic tape head is comprised of a plurality of modules comprising reader modules and writer modules, and a plurality of elements, wherein a total of shifts of selected elements of the plurality of elements that are shifted add up to a desired total shift to realign the plurality of modules, such that a median head span of each module type matches as close as possible to a desired value of a head span for all module types including the reader modules and the writer modules and wherein the head span is shifted at a wafer level.
Claims18
A magnetic tape head, comprising:
- a plurality of modules comprising reader modules and writer modules;
- and
- a plurality of elements, wherein a total of shifts of selected elements of the plurality of elements that are shifted add up to a desired total shift to realign the plurality of modules, such that a median head span of each module type matches as close as possible to a desired value of a head span for all module types including the reader modules and the writer modules and wherein the head span is shifted at a wafer level.
A magnetic tape drive, comprising:
- a receptacle for magnetic tape;
- and
- a magnetic tape head to read and write on the magnetic tape, the magnetic tape head, comprising:
- a plurality of modules comprising reader modules and writer modules;
- and
- a plurality of elements, wherein a total of shifts of selected elements of the plurality of elements that are shifted add up to a desired total shift to realign the plurality of modules, such that a median head span of each module type matches as close as possible to a desired value of a head span for all module types including the reader modules and the writer modules and wherein the head span is shifted at a wafer level.
A computational device, comprising:
- a processor;
- a tape drive coupled to the processor;
- and
- a magnetic tape head in the tape drive to read and write on a magnetic tape in the tape drive, the magnetic tape head, comprising:
- a plurality of modules comprising reader modules and writer modules;
- and
- a plurality of elements, wherein a total of shifts of selected elements of the plurality of elements that are shifted add up to a desired total shift to realign the plurality of modules, such that a median head span of each module type matches as close as possible to a desired value of a head span for all module types including the reader modules and the writer modules and wherein the head span is shifted at a wafer level.
Dependencies are inferred from the claim text.