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Vacuum hard drives

26.08.2018

L2 engineers talked about the benefits of pumping air from the area between the magnetic platters of hard drives: creating a vacuum in the hermetic area of the device will simplify the manufacturing process, as well as significantly increase the capacity of the drive.

US tech start-up L2 has come up with a solution that promises to revolutionize the industry in hard drive manufacturing. Engineers believe that moving away from filling the platter stack with gas in favor of vacuum will simplify production and increase the capacity of hard drives by more than 35% with so-called perpendicular recording.

According to L2 technical director Peter Goglia, in a vacuum, the magnetic plates will not corrode, which will favorably affect the durability of the product. In addition, this will eliminate the use of lubricants, as well as the application of a special carbon coating on the heads and plates at the manufacturing stage. These changes will greatly simplify the process.

In addition, complete evacuation of gases will reduce the distance between the heads and magnetic platters to 3-4 nm, as a result of which it will be possible to increase the track density and, as a result, achieve an increase in the maximum capacity of the drive, as well as more efficient use of HAMR (Heat- assisted magnetic recording - "thermomagnetic recording") and MAMR (Microwave-assisted magnetic recording - "microwave recording").

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