US 2013/0279045 A1 · MAGNETIC HEAD HAVING A CONTACT DETECTION SENSOR

Abstract

A head for magnetic thermally assisted magnetic data recording, having a read element, a write element a heater element for controlling thermal protrusion of the read and write elements and a thermal sensor for detecting contact a portion of the head with a magnetic media. The thermal contact sensor is arranged so that the thermal conduction between the thermal contact sensor and the read element is substantially equal to the thermal conductivity between the thermal contact sensor and the write element. In this way the accuracy of the detection of thermal contact is maintained whether the read element makes contact with the disk or the write element makes contact with disk.

Claims20

Dependent claims

A head for magnetic data recording, comprising:

a read element;
a write element;
and
a thermal contact sensor located substantially equidistant between the read element and the write element.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

13/451,284Filed 19 Apr 2012

Published

24 Oct 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

G11B 5/40
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor: protective measures on…
G11B 5/3133
Disposition of layers: including layers not usually being a part of the electromagnetic transducer structure and providing additional features,…
G11B 5/3967
Using magnetic thin film layers or their effects, the films being part of integrated structures: composite structural arrangements of transducers,…
G11B 5/607
Control of flying height: using thermal means

Magnetic head having a contact detection sensor

Life of this patent

Magnetic head having a contact detection sensor

Life of this patent

Abstract

Claims20