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The physical foundation of the digital universe are data storage, and the majority of the data are stored, to date, on magnetic data storage devices. Despite rapid growth of the digital universe, the capacity increase of storage devices has slowed down. Various magnetic data storage technologies will remain on the market and provide the foundation of the digital universe, until ultimately new data storage technologies can be developed to fulfill the data storage needs of the human society.

The data temperature can be defined, which depends on the access frequency, and utilized to determine and differentiate the technology solution utilized for given data storage needs. Previously, ~ a decade ago, Dr. Gao showed how and why the NAND based drive will continuously improve and eat HDD’s lunch, which lead to a continuous reduction of HDD shipments year over year.

Dr. Gao will review several technologies that are currently developed or implemented to improve magnetic data storage, particular for HDD, and discuss their impacts, if any, to the digital universe, and to our society.

What will be the likely impact of the introduction of heat assisted magnetic recording (HAMR), microwave assisted magnetic recording (MAMR), Shingled magnetic recording (SMR), helium drive and multi-actuators drives? He will also review several emerging technologies, and project their potential impact, such as VCM magnet solution and various drive architectures.

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Dr. Kaizhong Gao, an IEEE Fellow, is Chief Scientist at International Business and Technology Service Corporation, which is developing new technology solutions for renewable energy, data storage and COVID-19.  He led his team and received the inaugural Electricity Industry Technology and Practice Innovation Challenge Gold Award by the US Department of Energy, Office of Electricity in 2019. In 2020, Dr. Gao’s team has become American Made Challenge top 10 winner for Water and Solar challenges, which include composite magnet materials and Nano heat sink materials solutions that are currently utilized in renewable energy sectors.

He was a group leader at Argonne National Laboratory where he received an R&D 100 Awards for his magnetic materials design.

At Seagate his research on multiple technologies, such as PMR head and media, contact detection sensor, HAMR head and HAMR IMR architectures became or are becoming HDD-industry standards.

Dr. Gao received a PhD from UC San Diego. He received the Information Storage Industry Consortium (INSIC) technical achievement award in 2004, was named as young engineer of the year for the State of Minnesota in 2009 and in 2019 was elected as Fellow of the National Academy of Inventors.