NDLI: Magnetic Recording Performance of “Bit Printing Method” on PMR Media and Its Extendibility to the Higher Areal Density

Content Provider	IEEE Xplore Digital Library
Author	Morooka, A. Nagao, M. Yasunaga, T. Nishimaki, K.
Copyright Year	1965
Abstract	Servo pattern printing which supports bulk magnetic transfer of the servo pattern is expected to be the ultimate solution for perpendicular magnetic recording (PMR) media servo track writing method. There are two printing methods, ldquoEdge Printing (EP)rdquo and ldquoBit printing (BP)rdquo for PMR media. The reproduced waveform of EP method is not compatible with head writing. On the other hand, BP method is able to give the waveform like head write. We examined BP characteristic of the short bit length recording and its extendibility. The reproduced waveform of BP at 70 nm bit was equivalent to the head writing in its shape and amplitude. The spacing loss factor of BP was about 8 dB, and the signal-to-noise ratio of reproduced waveform had its peak at the point where Ha was close to Hc of recording media. It was easy to apply larger Ha by BP method than EP method, and magnetic printing signal had no write stitching problem that was seen in head writing especially at outer diameter area. There was no significant concern to increase Ha on BP, and BP was suitable for the future short bit length pattern.
Sponsorship	IEEE Magnetics Society
Starting Page	3754
Ending Page	3756
Page Count	3
File Size	713161
File Format	PDF
ISSN	00189464
Volume Number	44
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic recording Printing Perpendicular magnetic recording Servomechanisms Writing Magnetic heads Magnetic flux Magnetic fields Hard disks Sputter etching servo track writing Hard disk drive (HDD) magnetic printing patterned master perpendicular magnetic recording media
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Potential of Servo Pattern Printing on PMR Media With High-Density Servo Signal Pattern

Evaluating Track-Following Servo Performance of High-Density Hard Disk Drives Using Patterned Media

A Perspective on the Future of Hard Disk Drive (HDD) Technology

Printed Media technology for an effective and inexpensive servo track writing of HDDs

Magnetic printing technology - application to HDD

Hard disk drive servo technology for media-level servo track writing

Fundamental features of perpendicular magnetic recording and design considerations for future portable HDD integration

Perspectives of Magnetic Recording System at 10 Tb/in$^{2}$

Effect of Read Head Scaling on Servo and Data Signal Characteristics for Staggered Two-Row-per-Track Bit-Patterned-Media Recording

Magnetic Recording Performance of “Bit Printing Method” on PMR Media and Its Extendibility to the Higher Areal Density

Similar Documents

Potential of Servo Pattern Printing on PMR Media With High-Density Servo Signal Pattern

Evaluating Track-Following Servo Performance of High-Density Hard Disk Drives Using Patterned Media

A Perspective on the Future of Hard Disk Drive (HDD) Technology

Printed Media technology for an effective and inexpensive servo track writing of HDDs

Magnetic printing technology - application to HDD

Hard disk drive servo technology for media-level servo track writing

Fundamental features of perpendicular magnetic recording and design considerations for future portable HDD integration

Perspectives of Magnetic Recording System at 10 Tb/in$^{2}$

Effect of Read Head Scaling on Servo and Data Signal Characteristics for Staggered Two-Row-per-Track Bit-Patterned-Media Recording

Magnetic Recording Performance of “Bit Printing Method” on PMR Media and Its Extendibility to the Higher Areal Density