Abstract
In this paper, we propose a thermally assisted magnetic recording (TAMR) system with an optical fiber and specially designed prism attachment. The TAMR system utilizes an optical fiber and prism to facilitate the delivery of light to the slider and media. However, problems such as increasing suspension stiffness were encountered. Using an optical fiber increases the TAMR suspension stiffness and affects the pitch torque of the system. The pitch torque affects the flying height (FH), which can lead to slider-disk contact. Therefore, we investigated the stiffness of the TAMR suspension and the relationship between FH and the pitch static attitude (PSA). The various factors affecting the FH loss and the environmental conditions were also investigated. Finally, to compensate the large pitch stiffness and prevent slider-disk contact, the air bearing surface (ABS) of the TAMR system was optimized for robust slider performance, and the tolerance of the TAMR system was analyzed for the PSA considering various parameters such as temperature, relative humidity, operating conditions and manufacturing errors. The final PSA tolerances of the conventional and TAMR suspension were calculated. These values were 1.58 ° and 0.37 °, respectively. The sensitivity of the optimal PSA design was decreased by about 21.5%. The PSA tolerance using the optimal design was 0.47°. This indicates that the tolerance of the optimal model is larger than that of original model, which was about 21.3%.
| Original language | English |
|---|---|
| Article number | 5721846 |
| Pages (from-to) | 585-589 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 47 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2011 Mar 1 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
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Tolerance analysis of the pitch static attitude of a thermally assisted magnetic recording system with an optical fiber and prism. / Kim, Ki Hoon; Park, No Cheol; Park, Young Pil; Park, Kyoung Su.
In: IEEE Transactions on Magnetics, Vol. 47, No. 3, 5721846, 01.03.2011, p. 585-589.Research output: Contribution to journal › Article
TY - JOUR
T1 - Tolerance analysis of the pitch static attitude of a thermally assisted magnetic recording system with an optical fiber and prism
AU - Kim, Ki Hoon
AU - Park, No Cheol
AU - Park, Young Pil
AU - Park, Kyoung Su
PY - 2011/3/1
Y1 - 2011/3/1
N2 - In this paper, we propose a thermally assisted magnetic recording (TAMR) system with an optical fiber and specially designed prism attachment. The TAMR system utilizes an optical fiber and prism to facilitate the delivery of light to the slider and media. However, problems such as increasing suspension stiffness were encountered. Using an optical fiber increases the TAMR suspension stiffness and affects the pitch torque of the system. The pitch torque affects the flying height (FH), which can lead to slider-disk contact. Therefore, we investigated the stiffness of the TAMR suspension and the relationship between FH and the pitch static attitude (PSA). The various factors affecting the FH loss and the environmental conditions were also investigated. Finally, to compensate the large pitch stiffness and prevent slider-disk contact, the air bearing surface (ABS) of the TAMR system was optimized for robust slider performance, and the tolerance of the TAMR system was analyzed for the PSA considering various parameters such as temperature, relative humidity, operating conditions and manufacturing errors. The final PSA tolerances of the conventional and TAMR suspension were calculated. These values were 1.58 ° and 0.37 °, respectively. The sensitivity of the optimal PSA design was decreased by about 21.5%. The PSA tolerance using the optimal design was 0.47°. This indicates that the tolerance of the optimal model is larger than that of original model, which was about 21.3%.
AB - In this paper, we propose a thermally assisted magnetic recording (TAMR) system with an optical fiber and specially designed prism attachment. The TAMR system utilizes an optical fiber and prism to facilitate the delivery of light to the slider and media. However, problems such as increasing suspension stiffness were encountered. Using an optical fiber increases the TAMR suspension stiffness and affects the pitch torque of the system. The pitch torque affects the flying height (FH), which can lead to slider-disk contact. Therefore, we investigated the stiffness of the TAMR suspension and the relationship between FH and the pitch static attitude (PSA). The various factors affecting the FH loss and the environmental conditions were also investigated. Finally, to compensate the large pitch stiffness and prevent slider-disk contact, the air bearing surface (ABS) of the TAMR system was optimized for robust slider performance, and the tolerance of the TAMR system was analyzed for the PSA considering various parameters such as temperature, relative humidity, operating conditions and manufacturing errors. The final PSA tolerances of the conventional and TAMR suspension were calculated. These values were 1.58 ° and 0.37 °, respectively. The sensitivity of the optimal PSA design was decreased by about 21.5%. The PSA tolerance using the optimal design was 0.47°. This indicates that the tolerance of the optimal model is larger than that of original model, which was about 21.3%.
UR - http://www.scopus.com/inward/record.url?scp=79952175495&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952175495&partnerID=8YFLogxK
U2 - 10.1109/TMAG.2010.2100036
DO - 10.1109/TMAG.2010.2100036
M3 - Article
AN - SCOPUS:79952175495
VL - 47
SP - 585
EP - 589
JO - IEEE Transactions on Magnetics
JF - IEEE Transactions on Magnetics
SN - 0018-9464
IS - 3
M1 - 5721846
ER -