Heat-assisted
magnetic recording (HAMR) or thermally-assisted magnetic recording is
a technology offering tremendous increase in magnetic areal density
and is one of the advanced technologies in magnetic recording. This
storage technology increases data storage capacity by factor of 100.
It is a magnetic storage technology for hard drives in which a part
of the disk where the data is being written is heated with a small
laser. The laser heats the medium to a temperature above its curie
point, where all the magnetic domains randomize. This heat reduces
the coercivity of the material, allowing the head to write on
materials with higher coercivity. It makes grain size smaller which
is free from the super paramagnetic effect hence maximizing the areal
density. The HAMR allow writing on scale which is smaller than
before, significantly increasing the amount of data that can be held
on a standard disk platter. In HAMR, a hybrid recording head is used
to provide both heat and magnetic energy to switch the magnetization
of ultrahigh anisotropy magnetic media. HAMR utilizes highly stable
magnetic compounds such as iron and platinum alloys which can store
single bits in a much smaller area without being limited by the super
paramagnetic effect extending areal density. Thus eliminating the
limitations of the current technology used in hard disk storage. It
also enhances coercivity along with data storage capacity. Since the
media is temporarily heated during the recording process which
softens the recording media magnetically. This allows data to be
recorded using conventional magnetic writers. The writability of data
is improved by focusing heat energy to assist grain reversal. The
laser is integrated with an optical system, including the coupling of
laser energy into media, before finally recording the magnetic data.
HAMR hard disk drives (HDDs) feature a new architecture, require new
media, completely restructured read/write heads with a laser along
with a special near-field optical transducer (NFT) and various other
components.
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Demand
of HAMR is increasing rapidly due to rapid adoption of big data and
Internet of things (IoT). There is huge increase in user-generated
content, enterprise and personal storage demand. HAMR-based drives
are highly suitable for massive amount of data and with increasing
data rapidly, HAMR drives are anticipated to be used by
organizations. Furthermore, global demand to increase areal density
is anticipated to drive the market during the forecast period.
Convenient consumer electronics, such as personal digital assistance
(PDAs), digital cameras, mobile phones and music players that are
anticipated to generate a relatively uncertain though fast growth in
market for ultrahigh areal density HAMR-based HDDs. HAMR-based HDDs
for portable applications are anticipated to be the disruptive
technology in the magnetic recording industry.
Major
challenge faced in the growth of this technology is manufacturing
complexity which includes fabrication of suitable magnetic media with
minute grain size and other factors such as temperature and position
of the laser. The manufacturing of HAMR is highly cost inefficient.
Along with these, demand for hard disk drives (HDDs) is decreasing
due to the modification in applications from PCs to servers which is
limiting the manufacturing of drives including HAMR. Such factors are
forecasted to restrict the market growth during the forecast period.
Market
for heat-assisted magnetic recording can be segmented on the basis of
geographical regions. On the basis of geography, market is segmented
into North America, South America, Middle East & Africa, Europe
and Asia Pacific.
Key
players are Seagate, Toshiba, TDK Corporation, Fujitsu, Showa Denko
and Western Digital for heat-assisted magnetic recording technology,
however many players are anticipated to enter the market during the
forecast period.
The
report offers a comprehensive evaluation of the market. It does so
via in-depth qualitative insights, historical data, and verifiable
projections about market size. The projections featured in the report
have been derived using proven research methodologies and
assumptions. By doing so, the research report serves as a repository
of analysis and information for every facet of the market, including
but not limited to: Regional markets, technology, types, and
applications.
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