Seagate Technology Incorporated

Clifton H Chang

Patrick Joseph Ryan

Kevin Richard Heim

Peter Thomas Weyandt

Ramesh Sundaram

Mary Cynthia Hipwell

Subra Nagarajan

The invention is a magnetoresistive recording head including the reader portion that has a top and bottom shield, a first auxiliary electrical connection, a second auxiliary electrical connection, a first auxiliary electrical contact, and a second auxiliary electrical contact, where the first auxiliary electrical connection electrically connects the first auxiliary electrical contact to the top shield, and where the second auxiliary electrical connection electrically connects the second auxiliary electrical contact to the bottom shield. There is also provided a method of determining the electrical integrity of a magnetoresistive recording head that includes fabricating a magnetoresistive recording head including a reader portion having at least one shield, at least one reader contact, that is electrically connected to the reader portion, a shield shunt, at least one auxiliary electrical connection, and at least one auxiliary electrical contact that is electrically connected to at least one of the shields, and measuring the integrity of the magnetoresistive recording head.

Functional recording-head on-slider lap monitor

A test simulation circuit includes a simulated read/write head with a magnet shield and a magnetoresistive sensor exposed at a lapped surface. The test simulation circuit also includes first and second electrical test path connected respectively to the magnet shield and the magnetoresistive sensor. The second electrical test path is electrically isolated from the first electrical test path.

Test simulation of a read/write head

A magnetoresistive sensor in the magnetic storage device includes a magnetoresistive element for sensing magnetic fields carried on storage medium. A cooling device is thermally coupled to the magnetoresistive element and arranged to conduct heat in a direction away from the magnetoresistive element to thereby cool the magnetoresistive element during normal operation of the storage device.

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Bloomington, MN, United States of America

Clifton H Chang