Seagate Technology R&D Investment Strategy
Submitting InstitutionQueen's University Belfast
Unit of AssessmentPhysics
Summary Impact TypeTechnological
Research Subject Area(s)
Physical Sciences: Optical Physics
Engineering: Materials Engineering
Summary of the impact
University research and expertise in materials and photonics relevant to
data storage has influenced strategic investment decision-making within
Seagate Technology resulting in the creation of 85 new R&D positions
in the UK announced in 2010. These new jobs were part of an £60M
investment that saw a re-allocation of corporate budget from the USA and
resulted in significant expansion of Seagate Technology's UK based R&D
capacity. The investment was made to support their medium-term technology
roadmap plans. Seagate Technology is the world-leading manufacturer and
supplier of data storage technology in the form of disk drives, employing
53,000 people worldwide.
Since the late 1990's, our research has focused on the processing and
physics of nanoscale ferroic materials and in nano-optics and plasmonics
aided by the creation of tailored nanostructured materials for various
plasmonic implementations. Understanding and controlling the processing
and fabrication of nanoscale ferroic materials (e.g. ferroelectrics and
ferromagnetics), developing methodologies to explore ferroic domain
formation and switching on sub 100-nm lengths are key basic enablers for
future hard-disk read/write technology. Plasmonics and near field optical
delivery are central to the developments required for heat-assisted
magnetic recording (HAMR) that will be the next paradigm in data storage.
By 2009 a culmination and expression of underpinning research was
Meso and Nanoscale Ferroics
We established a globally unique activity in which thin film and
nanoscale effects were probed in lamellae, wires and dots cut directly
from bulk single crystal material using a Focused Ion Beam (FIB)
Microscope [Reference 1]. Thus intrinsic effects of nanoscale patterning
geometry on switching behaviour can be studied and related to that being
seen in ferromagnetic systems. With our alumina template self-assembly we
demonstrated the close integration of ferroic materials and noble metals
to make ultra-high density memory demonstrators (at almost 1Tb/inch2)
Plasmonics and Nanowires
Alumina templates and self-assembly has also seen the realisation of
metallic nanowire and nanotube arrays that have been specifically tailored
to generate new and exciting plasmon-mediated optical properties
[Reference 3]. Of note is the extreme sensitivity of the nanowire
absorption properties to the nature of the wire-surface interface and
means the arrays show great potential for novel plasmonic transducers
[Reference 4] to be exploited via a spinout company, Causeway Sensors,
formed in 2013.
This research provided underpinning relevance to Seagate Technology's
medium-term technology roadmap plans in three unique ways:
- We (Bowman, Gregg, Pollard) demonstrated the integration of nanoscale
noble metals and ferroic materials (magnetic elements and ferroelectric
elements layers) into alumina creating electrical and optically
functional devices on the sub 100nm length scale [Reference 2 and 4].
This is attractive when considering future integration of photonic
elements into conventional ferroic devices such as a read/write head;
- We (Pollard & Zayats (to 2011)) demonstrated how the shape of
plasmonic elements leads to particular optical response [Reference 5].
This is attractive when considering realisation of a plasmonic radiating
element for HAMR;
- We (Zayats (to 2011)) demonstrated through simulation how material
shaping can be used to create plasmonic waveguide elements [Reference
6]. This is attractive in demonstrating a light delivery system within a
read/write head. This work was undertaken in collaboration and
co-authored with Seagate Technology and via their financial support of
two PhD students on a £80k grant (2005-08) held by Bowman.
This was augmented further because the research programmes undertaken
since 2003 had been facilitated by £3M capital infrastructural investment
made by Invest NI (see acknowledgements in References 1, 2, 3 and 5)
creating an environment commensurate with what is required for high level
industrial engagement supporting other relationships e.g. via three
Knowledge Transfer Partnerships.
References to the research
For each reference we provide data on the journal ranking within ISI
classification area/s by ISI Journal Impact Factor (IF), the actual
Journal Impact Factor and the number of cites the article received on the
ISI Web of Knowledge to September 2013.
References 1-3 illustrate both quality of the underpinning research and
evidence to the impact, while references 4-6 provide the latter.
 "Morphological Control of Polar Orientation in Single Crystal
Ferroelectric Nanowires", A. Schilling et al, Nano Letters 7,
(7th of 232 in Materials Science — Multidisciplinary (or 5th
in 125 Physics — Applied), IF 13.2, 52 cites).
 "Towards self-assembled ferroelectric random access memories:
hard-wired switching capacitor arrays with almost Tb / inch2
densities", P. R. Evans et al, Nano Letters 7, 1134
(7th of 232 in Materials Science — Multidisciplinary (or 5th
in 125 Physics — Applied), IF 13.2, 43 cites).
 "Anisotropic optical properties of arrays of gold nanorods
embedded in alumina", R. Atkinson et al, Physical Review B 73,
(13th of 69 in Physics — Condensed Matter, IF 3.7, 59 cites).
 "Plasmonic nanorod metamaterials for biosensing", A. V.
Kabashin et al, Nature Materials 8, 867 (2009).
(1st of 232 in Materials Science — Multidisciplinary (or 1st
in 125 Physics — Applied), IF 32.8, 224 cites).
 "Growth and properties of gold and nickel nanorods in thin film
alumina", P. Evans et al, Nanotechnology 17, 5746
(16th of 125 in Physics — Applied, IF 4.0, 48 cites).
 "Plasmonic waveguide as an efficient transducer for high-density
data storage", D. O'Connor et al, Applied Physics Letters 95,
(17th of 125 in Physics — Applied IF 3.8, 12 cites).
Details of the impact
Seagate Technology has two sites for development and manufacture of
read/write heads (the micro-scale component that reads and writes
information to a hard disk), Bloomington, Minnesota, USA and Springtown
(Derry), Northern Ireland. The relentless demand for increased storage
density exceeds 20% compound annual growth rate at the same cost/bit: the
read/write head is central to delivering the performance gains required.
There is also a recognition that advances in existing materials and
concepts used in the heads were becoming increasingly incremental. There
was corporate realisation of the need to explore new materials, ideas and
fabrication methodologies. To this end in 2007-09 Seagate Technology
commenced restructuring of R&D activities in tandem with closure of
corporate R&D in Pittsburgh, USA.
To be competitive for corporate investment for these new technologies
required a set of competences that went significantly beyond that of the
R&D activity constituted at Springtown in 2009 and the risk that
investment would be made elsewhere was held by the regional development
agency, Invest NI "... our initial concern that the investment would
be made in USA rather than Northern Ireland." [Source 1].
Further, to also address the upcoming paradigm shift of heat assisted
magnetic recording (HAMR) whereby a read/write head would integrate a
light delivery system to deliver heat to a localised spot on the disk
which would necessitate additional expertise in plasmonic design and
realisation beyond that of their own early concepts (see W. Challener et
al, Nature Photonics 3, 220 (2009)
In undertaking the development of the investment business case for the
expansion of their R&D activities at Springtown, Seagate Technology
developed a strategy that would see the Springtown team focus on
Technology Readiness Levels (TRL) 5-9 while simultaneously identifying
supporting collaborative basic research in the University [Source 2]
founded on an open innovation model.
Following horizon scanning by Seagate Springtown, a due-diligence
exercise evaluated our research competence as the suitable supporting
element to their strategy [Source 3]. Research that made material
contribution to the exercise was [Source 2]:
- "A capability to undertake physical creation, examination and
measurements on ferroic materials on a sub 100nm dimension
- The ability to create novel ferroic and photonic architectures that
embody integration of traditional deposition methods such as vapor
deposition and electro-deposition and new the nanotechnologies such as
template growth and self-assembly.
- The fabrication of nanoscale plasmonic elements in geometry and
integration akin to that envisaged for medium term realization of
- The ability to undertake plasmonic design, tailored to preliminary
HAMR needs and realization."
The importance of our role in the Seagate investment case was recognised
by Invest NI as "... a key factor in moving the discussion forward and
ultimately enabling the investment to be made in Northern Ireland.
Attracting such a large corporate investment to Northern Ireland has had
a hugely positive economic impact in the region.". [Source 1].
Management at Seagate Springtown developed their investment business case
that secured corporate mandate for the £60M investment package to grow the
R&D function, in support of the areas outlined above, by 85 persons
and announced in January 2010 [Source 4]. Subsequently, in June
2010, a further strand of the business case was an additional investment
of around £9M (capital and recurrent) by Seagate to a new open innovation
hub at CNM called ANSIN working in TRL 1-4 [Source 5]. This is
their first such venture globally.
The consequences of this impact have been marked. With the creation of
the R&D posts at Springtown, by 2013 the site undertakes 40% of the
corporate R&D for read/write heads, a proportion significantly greater
than in 2008, and has responsibility for recording heads in notebook
products [Source 2].
To describe the reach and significance of this impact, Seagate Technology
is the world-leading provider of data storage devices. They have the
broadest product offering in the industry with the largest customer base,
and focus on the vertical integration of the critical technologies:
read/write heads and recording media. Seagate has a market capitalisation
of $13B and 53,000 employees worldwide. It has some 43% of the storage
device market and revenues of $10-12B p.a. (Q2 FY13: 57M drives shipped;
revenue of $3.7B).
Of Seagate's two sites for the development and manufacture of the
read/write heads, Springtown has a dominant role in manufacture. The
operation employs around 1350 staff, with 200 OEM staff on-site, and
manufactures some 300-400M read/write heads p.a., supplying 75% of
Seagate's needs (equating to some 25-30% of the global supply). The site
contributes some £100M p.a. Gross Value Add (GVA) to the UK economy.
Sources to corroborate the impact
- Letter from Technology Executive, Invest Northern Ireland.
- Letter from Chief Technology Officer, Seagate Technology.
- Senior Director, Seagate Technology, Springtown.
- Seagate Technology press release, 28 January 2010, available at
- BBC News Item, 8 June 2010, available at http://www.bbc.co.uk/news/10267681