| Presentation | 2006/6/29 Performance and Potential of High-Density Bit Recording Using Patterned Master Contact Duplication M. Nagao, H. Kubota, M. Nishikawa, T. Yasunaga, T. Komine, R. Sugita, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We investigated both the read/write performance for sub-micron bits and the possibility of recording servo-patterns of over 300Gbits/in^2 by using patterned master contact duplication, which is expected to resolve the problems of conventional servo-track writing. The experimental value of the spacing loss factors for sub-micron bits resulting from the duplication was around 20dB, which was lower than that for reported conventional magnetic head recording. The reason for the low value is that the duplication suffers less from recording demagnetization because a static recording method is used and the S^* value of the slave is high. A reading experiment involving duplication using a master disk with a track width of 190nm and a bit length of 123nm yielded a signal-to-noise ratio of 17.9dB, which was a little larger than that of magnetic head recording. The simulation of a magnetic field to duplicate a high-density servo-pattern indicated that the magnetic field was large enough to record servo-patterns of as much as 370Gbits/in^2. These studies demonstrated the potential of this method for high-density servo-pattern recording. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Magnetic duplication / Magnetic recording / Servo-track writing / Spacing loss / Hard disk |
| Paper # | MR2006-12 |
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| Conference Information | |
| Committee | MR |
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| Conference Date | 2006/6/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Magnetic Recording (MR) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance and Potential of High-Density Bit Recording Using Patterned Master Contact Duplication |
| Sub Title (in English) | |
| Keyword(1) | Magnetic duplication |
| Keyword(2) | Magnetic recording |
| Keyword(3) | Servo-track writing |
| Keyword(4) | Spacing loss |
| Keyword(5) | Hard disk |
| 1st Author's Name | M. Nagao |
| 1st Author's Affiliation | Research & Development Lab., Recording Media Products Div., Fuji Photo Film Co., Ltd.() |
| 2nd Author's Name | H. Kubota |
| 2nd Author's Affiliation | Research & Development Lab., Recording Media Products Div., Fuji Photo Film Co., Ltd. |
| 3rd Author's Name | M. Nishikawa |
| 3rd Author's Affiliation | Research & Development Lab., Recording Media Products Div., Fuji Photo Film Co., Ltd. |
| 4th Author's Name | T. Yasunaga |
| 4th Author's Affiliation | Research & Development Lab., Recording Media Products Div., Fuji Photo Film Co., Ltd. |
| 5th Author's Name | T. Komine |
| 5th Author's Affiliation | Dept. of Media and Telecomm. Eng., Ibaraki University |
| 6th Author's Name | R. Sugita |
| 6th Author's Affiliation | Dept. of Media and Telecomm. Eng., Ibaraki University |
| Date | 2006/6/29 |
| Paper # | MR2006-12 |
| Volume (vol) | vol.106 |
| Number (no) | 142 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |