Presentation 2006/6/29
Potential of Servo Pattern Printing on PMR Media with High Density Servo Signal Pattern
M. Nishikawa, S. Wakamatsu, K. Ichikawa, T. Usa, M. Nagao, T. Ishioka, T. Yasunaga, T. Komine, R. Sugita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Servo pattern printing (SPP) is recognized as a candidate for the future high resolution and high throughput servo track writing method. In terms of the application to perpendicular magnetic recording (PMR) media, there are two methods of SPP, "Edge printing (EP)" and "Bit printing (BP)", which use horizontal and vertical external field during printing process, respectively. Comparing between EP and BP, EP has higher potential for the PMR application, because of the properties of a DC-free signal, a higher SNR and smaller RRO from 8th to 19th order than a conventional head writing method. In the simulation, the less write-fringe of the recorded bits was confirmed as the benefits of EP. The most recent experiment demonstrated 55nm bit length (BL) with adequate read back signal and EP is considered to have adaptability to the areal density beyond 300Gbits/inch^2.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Hard disk drive / magnetic printing / servo track writing / perpendicular magnetic recording media / repeatable run out
Paper # MR2006-14
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Committee MR
Conference Date 2006/6/29(1days)
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Registration To Magnetic Recording (MR)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Potential of Servo Pattern Printing on PMR Media with High Density Servo Signal Pattern
Sub Title (in English)
Keyword(1) Hard disk drive
Keyword(2) magnetic printing
Keyword(3) servo track writing
Keyword(4) perpendicular magnetic recording media
Keyword(5) repeatable run out
1st Author's Name M. Nishikawa
1st Author's Affiliation Research & Development Lab., Fuji Photo Film Co., Ltd.()
2nd Author's Name S. Wakamatsu
2nd Author's Affiliation Research & Development Lab., Fuji Photo Film Co., Ltd.
3rd Author's Name K. Ichikawa
3rd Author's Affiliation Research & Development Lab., Fuji Photo Film Co., Ltd.
4th Author's Name T. Usa
4th Author's Affiliation Production Engineering & Development Center, Fuji Photo Film Co., Ltd.
5th Author's Name M. Nagao
5th Author's Affiliation Research & Development Lab., Fuji Photo Film Co., Ltd.
6th Author's Name T. Ishioka
6th Author's Affiliation Research & Development Lab., Fuji Photo Film Co., Ltd.
7th Author's Name T. Yasunaga
7th Author's Affiliation Research & Development Lab., Fuji Photo Film Co., Ltd.
8th Author's Name T. Komine
8th Author's Affiliation Dept. of Media and Telecomm. Eng., Ibaraki University
9th Author's Name R. Sugita
9th Author's Affiliation Dept. of Media and Telecomm. Eng., Ibaraki University
Date 2006/6/29
Paper # MR2006-14
Volume (vol) vol.106
Number (no) 142
Page pp.pp.-
#Pages 4
Date of Issue