Western Digital has achieved record areal density in its Magnetic Head Operation labs in Fremont, California, using its perpendicular magnetic recording/tunneling magneto-resistive head technology, allowing the leading maker of hard disk drives to product 3TB hard disk drives in about three years time. Following WD’s growing investments in technology the past five years, the company achieved 520Gb/inch² using its own perpendicular magnetic recording/tunneling magneto-resistive head technology. This level of density produces a 3.5” hard drive storing 640GB-per-platter and single hard drive capacities as large as 3TB. WD demonstrated 520Gb/inch² density in its Magnetic Head Operation labs in Fremont, California, earlier this month.
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