TMR tape drive for a 15 TB cartridge

This paper highlights the development of tunnel magnetoresistive (TMR) sensors for magnetic tape recording applications. This has led to the introduction of a tape drives supporting a 15 TB native tape cartridge, currently the highest capacity available. Underscoring this development is the fact tha...

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Published inAIP advances Vol. 8; no. 5; pp. 056511 - 056511-8
Main Authors Biskeborn, Robert G., Fontana, Robert E., Lo, Calvin S., Czarnecki, W. Stanley, Liang, Jason, Iben, Icko E. T., Decad, Gary M., Hipolito, Venus A.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.05.2018
AIP Publishing LLC
Subjects
Disk drives
Hard disks
Magnetic tape
Magnetoresistivity
Photolithography
Sensors
Tape drives
Tape recording
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Abstract This paper highlights the development of tunnel magnetoresistive (TMR) sensors for magnetic tape recording applications. This has led to the introduction of a tape drives supporting a 15 TB native tape cartridge, currently the highest capacity available. Underscoring this development is the fact that the TMR sensors must run in continual contact with the tape media. This is contrasted with modern hard disk drive (hdd) sensors, which fly above the disk platters. Various challenges encountered in developing and deploying TMR are presented. In addition, advances to the write transducer are also discussed. Lastly, the authors show that future density scaling for tape recording, unlike that for hdd, is not facing limits imposed by photolithography or superparamagnetic physics, suggesting that cartridge capacity improvements of 4 to 6x will be achieved in the next 4 to 8 years.
AbstractList This paper highlights the development of tunnel magnetoresistive (TMR) sensors for magnetic tape recording applications. This has led to the introduction of a tape drives supporting a 15 TB native tape cartridge, currently the highest capacity available. Underscoring this development is the fact that the TMR sensors must run in continual contact with the tape media. This is contrasted with modern hard disk drive (hdd) sensors, which fly above the disk platters. Various challenges encountered in developing and deploying TMR are presented. In addition, advances to the write transducer are also discussed. Lastly, the authors show that future density scaling for tape recording, unlike that for hdd, is not facing limits imposed by photolithography or superparamagnetic physics, suggesting that cartridge capacity improvements of 4 to 6x will be achieved in the next 4 to 8 years.
Author Fontana, Robert E.
Czarnecki, W. Stanley
Liang, Jason
Biskeborn, Robert G.
Decad, Gary M.
Lo, Calvin S.
Iben, Icko E. T.
Hipolito, Venus A.
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crossref_primary_10_1109_TMAG_2018_2868892
crossref_primary_10_1541_ieejjournal_141_766
crossref_primary_10_1063_1_5130404
crossref_primary_10_1038_s41598_021_93009_x
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SubjectTerms Disk drives
Hard disks
Magnetic tape
Magnetoresistivity
Photolithography
Sensors
Tape drives
Tape recording
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Title TMR tape drive for a 15 TB cartridge
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