# Thar Casey

> Thar Casey is the founder, president and CEO of Amber Semiconductor, known as AmberSemi, in Dublin, California. A business administration graduate with a background in finance and operations, he previously led PicoField Technologies and IDEX America. At AmberSemi he has shifted the company’s focus from electrical switching and conversion toward vertical power delivery for AI processors.

- **Role:** Founder, President and CEO at AmberSemi
- **Organizations:** Amber Semiconductor, Inc. (AmberSemi; previously Amber Solutions), IDEX America Inc., PicoField Technologies, Inc., Phantom IT Solutions, Monterey Bay Bank
- **Nationality:** American
- **Education:** B.S. in Business Administration, California State University, Hayward
- **Known for:** Led PicoField before IDEX acquired its technology and IP assets in 2013., Named to CEO Board Media’s list of 100 top U.S. semiconductor CEOs in 2022., Leads AmberSemi, which reported more than 50 secured U.S. patents in 2026.

## Career timeline

- **—** — Served as vice president of finance at Monterey Bay Bank and founded Phantom IT Solutions.
- **2013** — PicoField technology and intellectual-property assets acquired by IDEX in September; Casey became president of IDEX America.
- **2016** — Founded Amber in December, according to April 2019 local reporting.
- **2021** — Amber announced a technology collaboration with Infineon.
- **2023** — AmberSemi announced an exploratory partnership with Nordic Semiconductor.
- **2025** — Presented an AI data-center power-delivery initiative at APEC and attended the Pittsburgh energy and innovation summit.
- **2026** — Discussed prioritizing AI vertical power delivery and pausing other initiatives in an APEC interview.

## Achievements

- Led PicoField before IDEX acquired its technology and IP assets in 2013.
- Named to CEO Board Media’s list of 100 top U.S. semiconductor CEOs in 2022.
- Leads AmberSemi, which reported more than 50 secured U.S. patents in 2026.
- AmberSemi was a GSA Start-Up to Watch finalist in 2023.

## Latest updates

- **2026-04** — APEC interview published April 8 describes the decision to focus resources on AI power delivery.
- **2026-03** — AmberSemi announced the initial closing of a $30 million Series C; its release targeted Q3 2026 shipments to major customers.
- **2026-01** — AmberSemi announced PowerTile tape-out on January 27; this release targeted material production volumes in 2027.

## Links

- Website: https://ambersi.com/
- LinkedIn: https://www.linkedin.com/in/thar-casey-2565401

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Profile page: https://yespress.io/thar-casey
Published by YesPress — https://yespress.io
Last updated: 2026-10-25