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Inversion Semiconductor

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Manufacturing the most powerful chips, 15x faster

Winter 2025Founded 20247 peopleSan Francisco, CA, USA

About

Inversion Semiconductor is developing the next-generation chip fabrication machine, to create the most powerful chips 15x faster. Our vision is to reshore advanced chip fabrication capabilities in the West. We're building a lithography machine. Lithography uses light to pattern circuit features on silicon. We're scaling transistors to their physical limits by shrinking particle accelerators 1000x, to create a high power light source. Using our light source we will double transistor density for a given numerical aperture and 3x throughput.

Founders ยท 2

Rohan Karthik
Rohan KarthikFounder
๐ŸŽ“ Imperial College

Co-founder & CEO of Inversion Semiconductor (W25), developing next-gen semiconductor lithography machines. Masters in Mechanical Engineering from Imperial College London & Royal Academy of Engineering awardee. Previously automated chip design at Arm and led the Karman Space Programme to build record-breaking high power rockets.

Daniel Vega
Daniel VegaFounder
๐ŸŽ“ University College

Co-founder & CTO of Inversion Semiconductor (W25), developing next-gen lithography machines. Masters in Applied Physics from University College London, with a focus on applications of particle physics. Previously created novel ML models for stability optimization of tabletop particle accelerators at CERN, and developed particle accelerators for cancer treatment at Lumitron Technologies

Launch

Launched on Y Combinator ยท Feb 2025
View launch post โ†—

Manufacturing the most powerful chips 15x faster

A YC-founded company aims to scale chip lithography by developing a tabletop high-power light source (STARLIGHT) using wakefield-accelerated electrons to surpass current EUV limits. They partner with Lawrence Berkeley National Lab (BELLA) to test laser stability and light generation, with goals to enable 1 kW soft X-ray light for silicon patterning and industrial lithography applications.

Formerly โ€œAxiom Semiconductor Inc.โ€, โ€œAxiom Semiconductorโ€

IndustrialsManufacturing and RoboticsHardwareManufacturingSemiconductors

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