Austin, TX (1 December 2015) Ambiq Micro, the leader in ultra-low power semiconductor solutions, announces that Fumihide (Humi) Esaka has joined the firm as Chief Executive Officer. Mr. Esaka takes over from Mike Noonen who was interim CEO since July this year.

Fumihide Esaka has twenty years’ senior management experience in the semiconductor industry and held CEO roles in his last two companies, Nihon Inter Electronics Corp. and, most recently, power conversion specialist, Transphorm Inc. He joined International Rectifier as a Vice President in 1995, where he worked for twelve years, having previously spent six years as a manager at consultancy firm, Accenture.

“This is a most exciting time to be joining Ambiq Micro,” said Mr. Esaka, “the company has started full production of the world’s lowest power microcontroller and it’s already winning designs in leading consumer wearables and other IoT applications. Ambiq’s subthreshold technology is redefining low power in these applications and I look forward to being part of the great team that is driving this transformation in our industry.”

Scott Hanson, Ambiq Micro co-founder and Chief Technology Officer, commented, “Humi brings a wealth of international semiconductor industry experience to Ambiq. He has a deep understanding of power efficiency issues and of their importance to our customers, particularly those that design and manufacture battery-powered devices. This experience is going to be invaluable as we develop Ambiq to be a world leader in ultra-low power semiconductor technology.”

Mr. Esaka was awarded a BA in Electrical Engineering and Computer Science from the University of California, San Diego.

About Ambiq Micro

Ambiq Micro was founded in 2010 on the simple yet powerful notion that extremely low power semiconductors are the key to the future of electronics. Through the use of pioneering ultra-low power technology, we help innovative companies around the world develop differentiated solutions that reduce or eliminate the need for batteries, lower overall system power, and maximize industrial design flexibility.

Ambiq Micro has developed breakthrough technology based on our patented Subthreshold Power Optimized Technology (SPOT™) platform that dramatically reduces the amount of power consumed by semiconductors thus making our integrated circuits (ICs) an ideal solution for energy critical applications.

Ambiq Micro is headquartered in Austin, Texas. For more information, visit and follow us @Ambiq_Micro.

Media contacts

Ambiq Micro
Mike Salas, +1 512 879 2854,

Alexandra Sorton, +44 (0)1225 470 000,