The 250th Special CMSM seminar   


Heat Assisted Magnetic Recording – the long journey from basic research to full scale product ramp

Dr. Yukiko Kubota, Dr. Jan-Ulrich Thiele*Speaker
and Dr. Chung Shih
Seagate Technology, Fremont Research Center

Date & Time: 15:00 - 16:00, June 22nd (Wed), 2022.
Place: 1st Conference Room, 1st floor, Sengen.

Abstract:

  Heat assisted magnetic recording, or HAMR, is being introduced as the next generation magnetic recording technology. Critical components of this technology, such as the plasmonic near field transducer and high anisotropy granular FePt media, as well as recording demonstrations with areal densities exceeding those of any other magnetic recording technology have been described in detail in the literature. At the end of 2020 Seagate demonstrated what at the time were the largest capacity enterprise class hard disk drives with total capacities of 20TB using HAMR technology. Since then, the component and drive technologies have been further developed and optimized, and 20TB drives fulfilling enterprise class performance and reliability specifications are now in evaluation at a number of key customers. Based on the experience gained from this first generation we are now working towards a second generation of enterprise class HAMR drive products at areal densities and capacities beyond the realm of conventional PMR technology, and are preparing all manufacturing systems for a full-scale production ramp. In this presentation we will describe the current status of HAMR components such as recording heads and media, future developments, remaining challenges and ultimate physical limits of HAMR technology.
  • Contact: Y.K. Takahashi, Magnetic Recording Materials Group. E-mail: TAKAHASHI.Yukiko[at]nims.go.jp