Bond pad sharing for powering multiple writers of a recording head
AssigneeSeagate Technology LLC
InventorsDeclan Macken, Paul Sonda, Erik Hutchinson, Jin Fang, John Wolf
Life of this patent
Estimating the term…
Abstract
A magnetic recording head includes a plurality of writers and at least one reader. The plurality of writers and the reader define a plurality of close points of the head. The plurality of writers are spaced apart from one another in a cross-track direction and positioned in the same plane of the head. A plurality of contact sensors are positioned proximate the plurality of writers and the reader. The contact sensors are coupled together and to a pair of electrical bond pads of the head and configured to sense for head-disk contact at each of the close points.
Claims20
An apparatus, comprising:
- a plurality of writers and at least one reader of a magnetic recording head, the plurality of writers and the reader defining a plurality of close points of the head;
- the plurality of writers spaced apart from one another in a cross-track direction and positioned in the same plane of the head;
- and
- a plurality of contact sensors positioned proximate the plurality of writers and the reader, the contact sensors coupled together and to a pair of electrical bond pads of the head and configured to sense for head-disk contact at each of the close points.
An apparatus, comprising:
- a slider configured to interact with a magnetic recording medium, the slider comprising a plurality of electrical bond pads;
- a first writer disposed at a first close point of the slider;
- a second writer disposed at a second close point of the slider, the first and second writers spaced apart from one another in a cross-track direction and positioned in the same plane of the slider;
- a reader disposed at a third close point of the slider;
- and
- three contact sensors each configured to sense contact between the slider and the medium;
- wherein a first contact sensor is situated at or near the first close point of the first writer, the second contact sensor is situated at or near the second close point of the second writer, and the third contact sensor is situated at or near the third close point of the reader;
- and
- the three contact sensors are coupled together and between a pair of the bond pads.
Dependencies are inferred from the claim text.