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The Era of Giant Magnetoresistive Heads
Overview Areal density (expressed as billions of bits per square inch of disk surface area, Gbits/in˛) is the product of linear density (bits of information per inch of track) multiplied by track density (tracks per inch), and varies with disk radius. It is often valuable to quote areal density in terms of its maximum value. Improved areal density levels have been the dominant reason for the reduction in price per megabyte. High areal densities have been achieved by introducing new technology and by proportionally reducing certain key dimensions within the HDD ("Scaling"). The most significant advancements have been the MagnetoResistive (MR) head, the extended MagnetoResistive head (MRx) head, and the follow-on Giant MagnetoResistive (GMR) head technologies.
| Publisher | Hitachi | File Format | HTML |
|---|---|---|---|
| Date Published | October 2006 | Downloads | 1 |
| Format | White Papers | ||
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