Showa Denko has demonstrated some new platters that Toshiba can use to make thermal based disks from that can reach 30TB or more. Seagate and WD are also looking towards 30TB and beyond.

Microwave Assisted Switching-Microwave Assisted Magnetic Recording (MAS-MAMR) technology, which is a next-generation data-recording technology based on a new data recording principle suggested by Toshiba Corporate Research & Development Center and Toshiba Electronic Devices & Storage Corporation (Hereinafter collectively called Toshiba).

MAS-MAMR is a next generation data recording method that can realize further increase in data-storage capacity of HDDs. At present, Microwave Assisted Magnetic Recording (MAMR) is a leading edge data-recording technology, which has already been put into practical use. The newly developed MAS-MAMR technology realizes data-recording track on the surface of HD media drastically narrower than that of MAMR-technology-based HD media through utilization of the strong magnetic oscillation effect of Microwave Assisted Switching (MAS effect), thereby increasing data-storage capacity of HDDs.

Aiming to put this new data-recording technology into practical use, SDK has been developing HD media supporting MAS-MAMR in collaboration with Toshiba and TDK Corporation (TDK) which is a manufacturer of read/write heads for HDDs. In this joint development program, SDK, Toshiba, and TDK have cooperatively proved for the first time in the world that HDD as a combination of read/write head equipped with dual spin-injection-layer, which has been developed by TDK, and HD media equipped with new-type magnetic layer, which has been developed by SDK, can substantially increase HDD’s data-storage capacity through manifestations of the MAS effect.