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632nm

Misha Shalaginov, Michael Dubrovsky, Xinghui Yin
632nm
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  • Maintaining Moore's Law: Lithography, Semiconductors, and Chip Fabrication with Mordechai Rothschild
    In this episode of the 632nm podcast, we explore how 193nm lasers unexpectedly overtook x-ray approaches and reshaped semiconductor manufacturing. Physicist Mordechai Rothschild describes the breakthroughs that turned a once “impossible” technology into the mainstay of chip fabrication, including the discovery of specialized lenses, the invention of chemically amplified resists, and the game-changing flip to immersion lithography. We also hear candid insights on the race to push below 13.5 nanometers, where new ideas in plasma sources and advanced coatings might one day carry Moore’s Law even further.Dr. Mordechai Rothschild is a leading physicist and technologist at MIT Lincoln Laboratory, serving as Principal Staff in the Advanced Technology Division. He has been instrumental in advancing micro- and nanoscale systems, with significant contributions to 193-nm photolithography—a technology critical to modern semiconductor manufacturing. His work has earned him the 2014 SPIE Frits Zernike Award and the 2015 Edwin H. Land Medal. With over 220 publications and 16 patents, Rothschild's research spans metamaterials, microfluidics, and nanofabrication. He holds a BS in physics from Bar-Ilan University and a PhD in optics from the University of Rochester.01:22 Early Days and Technological Challenges08:54 The Role of Photoresist in Lithography19:39 The Rise of X-ray Lithography25:52 Global Competition and Geopolitics28:45 Challenges and Future of Lithography44:33 Introduction to Excimer Lasers47:54 Applications of 193nm Lasers49:41 Development of Reliable Laser Sources58:38 Lens Aging and Material Challenges01:01:10 Exploring Alternative Materials01:07:41 Liquid Immersion Lithography01:15:21 Engineering Complex Lithography Systems01:23:43 Immersion Lithography Insights01:24:33 Prototype to Foundry Adoption Timeline01:25:41 Challenges in EUV Development01:32:24 Personal Journey to Lincoln Lab01:38:59 Exploring Advanced Lithography01:57:26 Future of Moore's Law and Lithography02:06:40 Advice for Young ScientistsSubscribe:Apple PodcastsSpotifyRSSFollow us:Twitter: https://x.com/632nmPodcastSubstack: https://632nmpodcast.substack.com/Michael Dubrovsky: https://x.com/MikeDubrovskyMisha Shalaginov: https://x.com/MYShalaginovXinghui Yin: https://x.com/XinghuiYin
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  • Quantum Cascade Lasers: Federico Capasso on Curiosity and Bell Labs
    In this episode, physicist Federico Capasso recounts his winding path from struggling undergrad to pioneering inventor of the quantum cascade laser. He reveals how openness, daring ideas, and the bottom-up ethos at Bell Labs led to breakthroughs that redefined semiconductor research.Capasso also discusses the blurred lines between basic and applied science, the importance of nurturing curiosity, and the serendipitous moments that propelled his career. From avalanche photodiodes to metasurfaces to quantum biology, he offers a fascinating look at how big discoveries often begin with a simple spark of wonder.
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  • How Edison Inspired Eli Yablonovitch to Create Four World-Changing Inventions
    Eli Yablonovitch shares how Thomas Edison's approach of requiring "a thousand failed discoveries for every one that works" shaped his scientific philosophy. From solar cells to semiconductor lasers to photonic crystals to cell phone antennas, Yablonovitch reveals how each invention evolved from identifying fundamental physics concepts that others overlooked. He explains how his light-trapping concept now used in every solar panel stemmed from thinking about statistical mechanics. His strained semiconductor laser design, which initially faced industry resistance, eventually became the standard in all laser pointers and DVDs. Throughout his career spanning Bell Labs, Exxon, and academia, Yablonovitch demonstrates that true innovation comes from understanding basic physics principles and having the courage to pursue ideas others dismiss as impossible.
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  • From Failed PhD to Nobel Prize | John Mather’s Journey to Revolutionize Astronomy
    Join the 632nm team as we sit down with Nobel laureate Dr. John Mather. From his childhood days of building radios and telescopes to leading NASA's groundbreaking COBE mission, learn how a spectacular failure during his PhD research unexpectedly paved the way for his Nobel Prize-winning work. And hear the story of how NASA took a chance on a 28-year-old scientist who would change our understanding of the universe.Dr. Mather shares insights into the engineering marvels behind modern space telescopes, including the James Webb Telescope's ingenious cooling system and the concept behind hybrid ground-space observatories. Hear details about near-mission failures, midnight revelations that saved COBE, and the surprising connection between space telescopes and stealth fighter technology. Follow us:Twitter: https://x.com/632nmPodcastSubstack: https://632nmpodcast.substack.com/Michael Dubrovsky: https://x.com/MikeDubrovskyMisha Shalaginov: https://x.com/MYShalaginovXinghui Yin: https://x.com/XinghuiYinSubscribe:Apple Podcasts: https://podcasts.apple.com/us/podcast/632nm/id1751170269Spotify: https://open.spotify.com/show/4aVH9vT5qp5UUUvQ6Uf6ORWebsite: https://www.632nm.com
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  • Hunting for Alien Artifacts | Avi Loeb
    Join the 632nm team as we sit down with Harvard Professor Avi Loeb, in this fascinating exploration of astronomy, alien life, and the intersection of science and politics. From discussing the mysterious interstellar object that changed astronomy to explaining why Mars might not be the best destination for human colonization, Loeb challenges conventional wisdom with evidence-based insights. His unique perspective, shaped by his journey from growing up on a farm in Israeli to becoming a leading Harvard scientist, reminds us to think from first principles about the universe’s biggest questions.The conversation illuminates the stories behind groundbreaking scientific discoveries, including the work of overlooked pioneers in astronomy, and seriously explores the potential existence of extraterrestrial intelligence. Loeb shares his vision for the Galileo Project, discusses the search for alien artifacts on Earth, and explains why artificial intelligence might be crucial in solving the Fermi Paradox.00:00 Introduction and Opening Thoughts00:34 Avi Loeb's Journey and Achievements01:15 Science vs. Politics05:49 Early Life and Philosophical Influences16:57 Astrophysics and the Search for Extraterrestrial Life55:19 Breakthrough Initiatives: A Surreal Presentation56:40 Stephen Hawking's Visit and Human Limitations59:17 The Search for Intelligent Civilizations01:02:09 The Future of Space Exploration01:05:33 The Age of the Universe and Interstellar Objects01:42:23 The Quest for Immortality: Leaving a Legacy01:43:31 AI and Human Existence: A Philosophical Dive01:45:57 Navigating Politics: A Scientist's Perspective01:48:13 The Scientific Method: A Path to Truth02:03:27 Galileo Project: Searching for Extraterrestrial Life02:40:52 The Simplicity of Science02:41:25 Exploring Oumuamua and the Galileo Project02:45:24 The Quest for Interstellar Discoveries02:48:35 The Origins of Life and the Universe02:59:22 The Future of AI and HumanityFOLLOW US ON SOCIAL:Twitter @ https://x.com/632nmPodcastSubstack: https://632nmpodcast.substack.com/Michael Dubrovsky @ https://x.com/MikeDubrovskyMisha Shalaginov @ https://x.com/MYShalaginovXinghui Yin @ https://x.com/XinghuiYinSUBSCRIBE:Apple Podcasts: https://podcasts.apple.com/us/podcast/632nm/id1751170269Spotify: https://open.spotify.com/show/4aVH9vT5qp5UUUvQ6Uf6ORWEBSITE: https://www.632nm.com
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