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Departments of Aerospace and Electrical Engineering
Stanford University
Abstract-
Magnetic recording advances at a rate exceeding Moore's law. Barriers that
were thought to be real even a few years ago, proved to be movable or
surmountable. Storage capacity is cheaper than ever before. To continue
advances in capacity and performance at this neck breaking pace, it is thought
that combinations of optical and magnetic approaches may be needed. In
this talk we will address fundamental issues in data storage technology,
and potential opportunities to continue the fast growth path. At the heart
of the technology is a flying head assembly, a mere 15 nm above the surface
of the disk. Flying under these conditions puts severe constraints on the
head-disk interface. In addition, in some of the proposed storage
schemes, a fluid at temperatures of over 600C is located underneath the
head, at a distance
of 25 to 50 nm, potentially severely impacting the head-media interaction.
We will discuss the state-of-the-art in this area, and alternative
technologies that avoid the low flying heights by emphasizing the depth
dimension in data storage. Various system architectures will be discussed.
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