Bit-Patterned Magnetic Recording: Theory, Media Fabrication, and Recording Performance

@article{Albrecht2015BitPatternedMR,
  title={Bit-Patterned Magnetic Recording: Theory, Media Fabrication, and Recording Performance},
  author={Thomas R. Albrecht and Hitesh Arora and V. Ayanoor-vitikkate and J-M. L. Beaujour and D Bedau and David Berman and Alexei L. Bogdanov and Yves-Andr{\'e} Chapuis and Julia D. Cushen and Elizabeth Dobisz and Gregory S. Doerk and He Gao and Michael Grobis and Bruce A. Gurney and Weldon Mark Hanson and Olav Hellwig and Toshiki Hirano and Pierre-Olivier Jubert and Dan Saylor Kercher and Jeffrey S. Lille and Zuwei Liu and C. Mathew Mate and Yu. Obukhov and Kanaiyalal C. Patel and K. A. Rubin and Ricardo Ruiz and Manfred E. Schabes and Lei Wan and Dieter K. Weller and Tsai-Wei Wu and En Yang},
  journal={IEEE Transactions on Magnetics},
  year={2015},
  volume={51},
  pages={1-42}
}
Bit-patterned media (BPM) for magnetic recording provides a route to thermally stable data recording at >1 Tb/in2 and circumvents many of the challenges associated with extending conventional granular media technology. Instead of recording a bit on an ensemble of random grains, BPM comprises a well-ordered array of lithographically patterned isolated magnetic islands, each of which stores 1 bit. Fabrication of BPM is viewed as the greatest challenge for its commercialization. In this paper, we… 
Nanoscale Reactive Ion Etching of Silicon Nitride Thin Films for Embedded Nanomagnetic Device Fabrication
Author(s): Hibbard-Lubow, David Luke | Advisor(s): Schmidt, Holger | Abstract: The demands of digital memory have increased exponentially in recent history, requiring faster, smaller and more
2D Magnetic Mesocrystals for Bit Patterned Media
Bit patterned media exhibits great potential in satisfying the increasing demand for higher information storage density, but the present media fabrication technique is complicated. Here, a 2D
Fabrication of bit patterned media using templated two-phase growth
In fabricating high areal density magnetic nanostructures for bit patterned magnetic recording media, conventional lithography methods are limited in scaling and often present other challenges, for
Fabrication of Electrodeposited FeCuPt Nanodot Arrays Toward $L1_{0}$ Ordering
FeCuPt nanodot arrays were fabricated by electrodeposition onto a nanopore patterned substrate fabricated by electron beam lithography (EBL), for the purpose to manufacture and characterize model
Directed self-assembly of block copolymers for sub-10 nm fabrication
Directed self-assembly (DSA) emerges as one of the most promising new patterning techniques for single digit miniaturization and next generation lithography. DSA achieves high-resolution patterning
Ferrimagnetic DyCo 5 Nanostructures for Bits in Heat-Assisted Magnetic Recording
Increasing the magnetic data recording density requires reducing the size of the individual memory elements of a recording layer as well as employing magnetic materials with temperature-dependent
Template-Assisted Direct Growth of 1 Td/in(2) Bit Patterned Media.
TLDR
The scheme enables the creation of both templated data and servo regions suitable for high density hard disk drive operation, and illustrates the importance of using a process that is both topographically and chemically driven to achieve high quality media.
Directed self-assembly of block copolymers for 7 nanometre FinFET technology and beyond
TLDR
A comparison between the use of directed self-assembly and conventional patterning methods in the fabrication of 7 nanometre node FinFETs shows similar device performance, suggesting directedSelfAssembly could offer a simplified patterning technique for future semiconductor technology nodes.
Thermally induced magnetic switching in bit-patterned media
We have studied the thermal variation of the switching field of magnetic islands at room temperature. A model bit-pattern media composed of an assembly of islands with 80 nm width was fabricated by
Nano- and micro-patterning biotemplated magnetic CoPt arrays.
TLDR
This bioinspired study offers an ecological route towards developing biotemplated magnetic thin-films for use in applications such as sensing, cell manipulation and data storage.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 118 REFERENCES
Bit Patterned Media at 1 Tdot/in2 and Beyond
Bit patterned media (BPM) provide an alternative to conventional granular thin film recording media, circumventing the challenges of managing grain size and its associated noise and thermal stability
Bit-Patterned Magnetic Recording: Nanoscale Magnetic Islands for Data Storage
Bit-patterned recording shows potential as a route to thermally stable data recording at densities greater than 1 Tbit/in2, provided that a number of challenging requirements can be met.
Recording Physics, Design Considerations, and Fabrication of Nanoscale Bit-Patterned Media
Recording physics, design considerations, and fabrication of bit-patterned magnetic medium for next generation data storage systems is presented. (Co/Pd)N magnetic multilayers are evaluated as
Planarization of patterned magnetic recording media to enable head flyability
The fabrication and planarization of patterned magnetic recording media is investigated and the flyability of magnetic recording sliders on a patterned and planarized 65 mm glass disk is investigated
Patterned Magnetic Media Made by Self-Assembled Block-Copolymer Lithography
Patterned magnetic recording media, in which data bits are stored in discrete single-domain magnetic particles, have been proposed for the next generation of recording media. To achieve high
Patterned media made from pre-etched wafers: a promising route toward ultrahigh-density magnetic recording
We have investigated a very efficient way to produce patterned media for ultrahigh density magnetic recording by first preparing patterned wafers made of silicon. Two ways of patterning the wafers
5 Tdots/in2 bit patterned media fabricated by a directed self-assembly mask
FePt bit patterned media (BPM) was fabricated with a self-assembled polymer mask with a feature size of 12 nm pitch (equivalent to 5 Tdots/in2 ). A 3.5 nm FePt film with high c-axis crystal
Advanced cleaning of nano-imprint lithography template in patterned media applications
As the magnetic storage industry roadmap calls for aggressive terabit/in2 densities over the next few years, the shift from the current planar media to patterned media; grooved surfaces (discrete
Submicron patterning of thin cobalt films for magnetic storage
We are investigating the feasibility of a recording medium in which each bit of information is stored in a single‐domain magnetic particle. To this end we have developed a procedure for
Directed Block Copolymer Assembly versus Electron Beam Lithography for Bit-Patterned Media with Areal Density of 1 Terabit/inch(2) and Beyond.
TLDR
The directed self-assembly of block copolymer (BCP) offers a new route to perfect nanolithographic patterning at sub-50 nm length scale with molecular scale precision and the maximum dimensional latitude in the cylinder-forming BCP patterns and themaximum skew angle that the BCP can tolerate have been investigated for the first time.
...
1
2
3
4
5
...