公开(公告)号：US10002631B1

公开(公告)日：2018-06-19

申请号：US15631489

申请日：2017-06-23

Applicant: Seagate Technology LLC

Inventor： James Dillon Kiely ,  Zhen Wei ,  Neil Zuckerman ,  John Charles Duda ,  Eric L. Montei

IPC: G11B21/02 ,  G11B5/60

CPC classification number: G11B5/607 ,  G11B5/6076

Abstract: An apparatus comprising a slider and a detector coupled to the slider. The slider is configured for writing data to and reading data from a magnetic recording medium. The slider comprises a heater configured to receive a modulated signal and cause oscillation in a spacing between the slider and the medium. At least one heat generating component of the slider is configured to receive a modulated signal. A contact sensor is situated on the slider to receive heat generated by the at least one heat generating component. The detector is configured to measure a response signal of the heated contact sensor as the slider approaches the medium. The detector is further configured to detect contact between the slider and the medium in response to the response signal reaching a predetermined threshold.