Seagate Technology collaborates with NIMS and TU to develop three-level magnetic recording technology for dual-layer granular media drives

Seagate Technology Introduces New Tri-Level Magnetic Recording Technology

Tom’s Hardware reports that Seagate Technology, in collaboration with the National Institute for Materials Science (NIMS) and Tohoku University (TU), has introduced a new tri-level magnetic recording technology for dual-layer granular media. This technology, based on the principles of heat-assisted magnetic recording (HAMR), has the potential to increase the capacity of hard disk drives (HDD) to 120 terabytes and beyond.

The HAMR method allows for at least a doubling of recording density compared to traditional perpendicular magnetic recording (PMR) methods, by locally heating the surface of the medium with a laser to the Curie temperature, enabling information to be written on smaller areas.