JP2014017045A5 - - Google Patents
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- Publication number
- JP2014017045A5 JP2014017045A5 JP2013136342A JP2013136342A JP2014017045A5 JP 2014017045 A5 JP2014017045 A5 JP 2014017045A5 JP 2013136342 A JP2013136342 A JP 2013136342A JP 2013136342 A JP2013136342 A JP 2013136342A JP 2014017045 A5 JP2014017045 A5 JP 2014017045A5
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- slider
- head
- heater
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000004044 response Effects 0.000 description 7
- 238000013459 approach Methods 0.000 description 5
- 238000013500 data storage Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006903 response to temperature Effects 0.000 description 1
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/544,559 US8848309B2 (en) | 2012-07-09 | 2012-07-09 | Determining head-to-disk contact and/or spacing using frequency domain signature of a temperature sensor |
| US13/544,559 | 2012-07-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014017045A JP2014017045A (ja) | 2014-01-30 |
| JP2014017045A5 true JP2014017045A5 (enExample) | 2014-03-13 |
| JP5813057B2 JP5813057B2 (ja) | 2015-11-17 |
Family
ID=48793874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013136342A Expired - Fee Related JP5813057B2 (ja) | 2012-07-09 | 2013-06-28 | ヘッド−ディスク接触および／または間隔を判定する方法、装置ならびに磁気ヘッド |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8848309B2 (enExample) |
| EP (1) | EP2685454B1 (enExample) |
| JP (1) | JP5813057B2 (enExample) |
| KR (1) | KR101469586B1 (enExample) |
| CN (1) | CN103544965B (enExample) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101592195B1 (ko) * | 2010-03-26 | 2016-02-05 | 시게이트 테크놀로지 인터내셔날 | 센서를 이용한 터치-다운 및 헤드/미디어 접촉 검출 방법 및 장치와 이를 적용한 디스크 드라이브 및 저장매체 |
| US8523312B2 (en) | 2010-11-08 | 2013-09-03 | Seagate Technology Llc | Detection system using heating element temperature oscillations |
| WO2012068396A1 (en) | 2010-11-17 | 2012-05-24 | Seagate Technology Llc | Asperity and head-media contact detection using multi-stage temperature coefficient of resistance sensor |
| US9082440B2 (en) * | 2012-07-23 | 2015-07-14 | Seagate Technology Llc | Using first and second resistive sensor bias levels to detect head-to-disk contact and/or clearance |
| US8970978B1 (en) * | 2012-10-22 | 2015-03-03 | Western Digital Technologies, Inc. | Disk drive detecting head touchdown by applying DC+AC control signal to fly height actuator |
| US8638349B1 (en) * | 2013-03-11 | 2014-01-28 | Seagate Technology Llc | Head-medium contact detection using introduced heat oscillation |
| US9117474B1 (en) * | 2014-10-02 | 2015-08-25 | HGST Netherlands B.V. | Implementing write head device for contact detection and spacing sensing |
| US9472225B2 (en) | 2015-02-11 | 2016-10-18 | Seagate Technology Llc | Heat-assisted magnetic recording head-disk clearance setting |
| US9548072B2 (en) * | 2015-02-11 | 2017-01-17 | Seagate Technology Llc | Concurrent modulation and frictional heating head disk contact detection |
| US9595280B2 (en) * | 2015-02-26 | 2017-03-14 | Western Digital Technologies, Inc | Hard disk drive head-disk interface dithering |
| US9443543B1 (en) * | 2015-03-11 | 2016-09-13 | Kabushiki Kaisha Toshiba | Disk storage device and method for controlling head flying height |
| US9245561B1 (en) * | 2015-03-24 | 2016-01-26 | Seagate Technology Llc | Apparatus and method for measuring surface charge of a slider |
| US9564163B2 (en) | 2015-04-03 | 2017-02-07 | Western Digital Technologies, Inc. | Implementing dual partially independent thermal flyheight control (TFC) for hard disk drives |
| US9721603B2 (en) | 2015-09-25 | 2017-08-01 | Seagate Technology Llc | Head-medium contact detection using an oscillating electromagnetic force |
| US9607642B1 (en) | 2016-01-27 | 2017-03-28 | Seagate Technology Llc | Head-medium contact detection using a thermal sensor and surface charge control of a slider |
| US9865292B1 (en) | 2017-02-28 | 2018-01-09 | Seagate Technology Llc | Contact detection using modulated writer coil current for a heat-assisted magnetic recording slider |
| US9786309B1 (en) * | 2017-06-06 | 2017-10-10 | Western Digital Technologies, Inc. | Data storage device detecting minimum stable fly height of a head over a disk |
| US9990950B1 (en) | 2017-07-17 | 2018-06-05 | Seagate Technology Llc | Calibration and adjusting target pre-write clearance offset for a heat-assisted magnetic recording device |
| US10360935B1 (en) | 2018-05-22 | 2019-07-23 | Headway Technologies, Inc. | Dual write heater for slider surface topography control in double perpendicular magnetic recording (PMR) writers |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12000A (en) * | 1854-11-28 | James newman | ||
| US7133254B2 (en) | 2003-05-30 | 2006-11-07 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic recording head with heating device |
| US7092195B1 (en) * | 2004-05-28 | 2006-08-15 | Western Digital (Fremont), Inc. | Method of using a magnetic write head having an internal heater |
| US7180692B1 (en) * | 2005-12-27 | 2007-02-20 | Hitachi Global Storage Technologies Netherlands B.V. | System and method for calibrating and controlling a fly-height actuator in a magnetic recording disk drive |
| JP2008097760A (ja) | 2006-10-13 | 2008-04-24 | Fujitsu Ltd | ヘッドスライダ用接触判定装置および接触判定方法並びに記憶媒体駆動装置 |
| JP2008112545A (ja) * | 2006-10-31 | 2008-05-15 | Fujitsu Ltd | ヘッドスライダ支持機構の製造方法、ヘッドスライダおよび記憶装置 |
| JP2008186549A (ja) * | 2007-01-31 | 2008-08-14 | Toshiba Corp | 磁気ヘッド、およびこれを備えたディスク装置 |
| JP2009129532A (ja) * | 2007-11-28 | 2009-06-11 | Hitachi Ltd | 磁気ヘッドスライダ及び磁気ディスク装置 |
| US7660068B1 (en) | 2008-09-18 | 2010-02-09 | Hitachi Global Storage Technologies Netherlands B.V. | Method and system for pre-contact detection and active damping of air bearing vibrations in a hard disk drive |
| JP2010129157A (ja) * | 2008-11-29 | 2010-06-10 | Hitachi Global Storage Technologies Netherlands Bv | ディスク・ドライブ、ヘッド・スライダ及びディスク・ドライブにおける記録再生素子のクリアランス制御方法 |
| JP2010205368A (ja) * | 2009-03-05 | 2010-09-16 | Toshiba Storage Device Corp | タッチダウン判定装置、タッチダウン判定方法および磁気ディスク装置 |
| KR101592195B1 (ko) * | 2010-03-26 | 2016-02-05 | 시게이트 테크놀로지 인터내셔날 | 센서를 이용한 터치-다운 및 헤드/미디어 접촉 검출 방법 및 장치와 이를 적용한 디스크 드라이브 및 저장매체 |
| US8562729B2 (en) * | 2010-09-21 | 2013-10-22 | Sanford, L.P. | Highlighting ink formulation comprising an anti-smear agent |
| US8523312B2 (en) * | 2010-11-08 | 2013-09-03 | Seagate Technology Llc | Detection system using heating element temperature oscillations |
| WO2012068396A1 (en) * | 2010-11-17 | 2012-05-24 | Seagate Technology Llc | Asperity and head-media contact detection using multi-stage temperature coefficient of resistance sensor |
-
2012
- 2012-07-09 US US13/544,559 patent/US8848309B2/en active Active
-
2013
- 2013-06-26 EP EP13173883.3A patent/EP2685454B1/en not_active Not-in-force
- 2013-06-28 JP JP2013136342A patent/JP5813057B2/ja not_active Expired - Fee Related
- 2013-07-05 KR KR1020130079092A patent/KR101469586B1/ko not_active Expired - Fee Related
- 2013-07-08 CN CN201310284501.2A patent/CN103544965B/zh active Active
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