MANHASSET, N.Y. Seagate Technology is claiming a world record magnetic recording density.
Seagate used perpendicular recording heads and media created with current production equipment to achieve a recording density of 421 Gbit/inch2.
Mark Kryder, Seagate's senior vice president and CTO, announced the record during his keynote presentation at the Idema Discon show held to observe the 50th anniversary of the hard drive.
With IBM seeking alternative technologies for computer storage, Seagate expects drive capacity to increase to 275 Gbytes for 1- and 1.8-inch consumer drives, 500 Gbytes for 2.5-inch notebook drives and nearly 2.5 Tbytes for 3.5-inch desktop drives.
Kryder said heat-assisted magnetic recording (HAMR) and bit-patterned media techniques can boost storage capacities to reach or exceed 50 terabits/ inch2.
In a tightly controlled demonstration, an areal density of 421 Gbytes/inch2 was demonstrated using a 10 E-3 off-track bit error rate criteria with 5 percent squeeze. The drive also met a 10 percent off-track capability at a data rate of 735 megabits/second. The track density was 275,000 tracks/inch, and the linear density was 1.53 million bits/inch for a bit aspect ratio of 5.6.