{"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.\n \nTime Stamps \n\n00:00:00 – The Power of Data and Introducing Mosaic\n00:01:00 – Stephanie’s 15-Year Journey at Seagate\n00:03:30 – The Rise of HAMR and Industry Skepticism\n00:08:30 – Understanding the Superparamagnetic Limit\n00:10:50 – Grain Size, Signal-to-Noise, and Scaling Challenges\n00:12:30 – The Core Innovations Behind HAMR\n00:16:00 – Atomic-Scale Precision and Laser-Assisted Recording\n00:23:30 – From Research Concept to Mass Production\n00:26:30 – Why Capacity Growth Matters to the World\n00:27:50 – Hyperscalers, Form Factor, and Fleet Economics\n00:31:00 – Driving Aerial Density Toward 10TB per Disc\n00:33:30 – Multisensor and Advanced Recording Technologies\n00:40:00 – Beyond HAMR: Future Media and Architectures \n00:43:00 – The Hidden Innovation Inside the Hard Drive\n\n \nAbout Stephanie Hernandez  \n \nDr. 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...","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}