{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"The Data Movement","title":"Mozaic and the Future of Mass-Capacity Storage – with Stephanie Hernandez ","html":"","width":"100%","height":180,"duration":2799,"description":"In this episode of The Data Movement, host Paul Langston sits down with Stephanie Hernandez, Senior Engineering Director at Seagate, to explore Mozaic—Seagate’s breakthrough HAMR (Heat-Assisted Magnetic Recording) technology platform—and how it’s redefining what’s possible in mass-capacity data storage. Stephanie shares her 15-year journey from magnetic recording researcher to leading future HAMR innovations, explaining how atomic-scale engineering, lasers, and advanced materials like iron platinum are enabling 30TB, 40TB, and soon 100TB-class drives—all within the same familiar 3.5-inch form factor. From overcoming the superparamagnetic limit to scaling production to millions of drives for hyperscale data centers, this conversation reveals the extraordinary science, precision, and vision powering the infrastructure behind the world’s exploding data demand. Time Stamps 00:00:00 – The Power of Data and Introducing Mosaic00:01:00 – Stephanie’s 15-Year Journey at Seagate00:03:30 – The Rise of HAMR and Industry Skepticism00:08:30 – Understanding the Superparamagnetic Limit00:10:50 – Grain Size, Signal-to-Noise, and Scaling Challenges00:12:30 – The Core Innovations Behind HAMR00:16:00 – Atomic-Scale Precision and Laser-Assisted Recording00:23:30 – From Research Concept to Mass Production00:26:30 – Why Capacity Growth Matters to the World00:27:50 – Hyperscalers, Form Factor, and Fleet Economics00:31:00 – Driving Aerial Density Toward 10TB per Disc00:33:30 – Multisensor and Advanced Recording Technologies00:40:00 – Beyond HAMR: Future Media and Architectures 00:43:00 – The Hidden Innovation Inside the Hard Drive About Stephanie Hernandez   Dr. Stephanie Hernandez is Senior Engineering Director at Seagate Technology, where she leads advanced research and development for next-generation data storage technologies, including Heat-Assisted Magnetic Recording (HAMR) and other cutting-edge media and memory systems. She earned her Ph.D. in Electrical Engineering from the...","thumbnail_url":"https://img.transistorcdn.com/v2DG7kXYt-0qa-IUP5oqoAPZ7GkbK6tH5yKG6eAcrIM/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9lYzhi/NGYzNTgyMzEwMWZl/Yjk1ZTAwOTQxMWNh/MDFhZi5qcGVn.webp","thumbnail_width":300,"thumbnail_height":300}