Abstract
Thermal flying-height control (TFC) technology is now widely applied in the hard disk drive (HDD) industry, because it enables consistent read/write spacing, increases storage density and improves HDD reliability. In a TFC slider, the air bearing pressure at the transducer area can be raised to ten or fifteen times the ambient pressure and it can decrease the air bearing pressure. This paper investigates the effect of humid air condition in TFC slider. It is found that because of the high pressure in transducer area of slider, the water molecules are condensed and the air bearing pressure is changes. Therefore, the slider cannot maintain the flying attitude and the flying-height is changed. Moreover, the change of air pressure causes the change of heat transfer coefficient between slider and air bearing. Consequently, it causes a change of the performance in TFC slider. And in higher humidity and temperature, the effect is intensified.
| Original language | English |
|---|---|
| Pages (from-to) | 2789-2796 |
| Number of pages | 8 |
| Journal | Microsystem Technologies |
| Volume | 21 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2015 Dec 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Hardware and Architecture
- Electrical and Electronic Engineering
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Analysis of thermal flying-height control slider in a hard disk drive under humid air condition. / Choi, Jonghak; Park, Kyoung Su; Park, No Cheol; Park, Young Pil; Hong, Eo Jin; Lee, Yonghyun; Kim, Cheol Soon.
In: Microsystem Technologies, Vol. 21, No. 12, 01.12.2015, p. 2789-2796.Research output: Contribution to journal › Article
TY - JOUR
T1 - Analysis of thermal flying-height control slider in a hard disk drive under humid air condition
AU - Choi, Jonghak
AU - Park, Kyoung Su
AU - Park, No Cheol
AU - Park, Young Pil
AU - Hong, Eo Jin
AU - Lee, Yonghyun
AU - Kim, Cheol Soon
PY - 2015/12/1
Y1 - 2015/12/1
N2 - Thermal flying-height control (TFC) technology is now widely applied in the hard disk drive (HDD) industry, because it enables consistent read/write spacing, increases storage density and improves HDD reliability. In a TFC slider, the air bearing pressure at the transducer area can be raised to ten or fifteen times the ambient pressure and it can decrease the air bearing pressure. This paper investigates the effect of humid air condition in TFC slider. It is found that because of the high pressure in transducer area of slider, the water molecules are condensed and the air bearing pressure is changes. Therefore, the slider cannot maintain the flying attitude and the flying-height is changed. Moreover, the change of air pressure causes the change of heat transfer coefficient between slider and air bearing. Consequently, it causes a change of the performance in TFC slider. And in higher humidity and temperature, the effect is intensified.
AB - Thermal flying-height control (TFC) technology is now widely applied in the hard disk drive (HDD) industry, because it enables consistent read/write spacing, increases storage density and improves HDD reliability. In a TFC slider, the air bearing pressure at the transducer area can be raised to ten or fifteen times the ambient pressure and it can decrease the air bearing pressure. This paper investigates the effect of humid air condition in TFC slider. It is found that because of the high pressure in transducer area of slider, the water molecules are condensed and the air bearing pressure is changes. Therefore, the slider cannot maintain the flying attitude and the flying-height is changed. Moreover, the change of air pressure causes the change of heat transfer coefficient between slider and air bearing. Consequently, it causes a change of the performance in TFC slider. And in higher humidity and temperature, the effect is intensified.
UR - http://www.scopus.com/inward/record.url?scp=84946488204&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84946488204&partnerID=8YFLogxK
U2 - 10.1007/s00542-015-2570-z
DO - 10.1007/s00542-015-2570-z
M3 - Article
AN - SCOPUS:84946488204
VL - 21
SP - 2789
EP - 2796
JO - Microsystem Technologies
JF - Microsystem Technologies
SN - 0946-7076
IS - 12
ER -