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IceMOS Technology secures $22 million in Series E funding to advance its silicon-based mSJMOSTM power devices, designed for high-efficiency applications. The company expands operations across Arizona, Northern Ireland, and Japan while appointing Niall Lyne as COO to support global growth. Its patented technology targets sectors including AI, EVs, renewables, and aerospace, aiming to reduce energy consumption and carbon emissions.
$22 Million and Counting: What Fuels IceMOS Technology’s Latest Funding Round
IceMOS Technology has completed a $22 million Series E funding round led by London-based 57 Stars LLC, alongside earlier-stage investors in the United States. The semiconductor company, headquartered in Paradise Valley, Arizona, now holds a post-money market valuation of $110 million USD (£85 million). The funding enables IceMOS to move forward with its mSJMOSTM power semiconductor device technology, expanding manufacturing, design, applications engineering, and global sales operations.
The latest investment supports IceMOS’s strategic expansion in Northern Ireland, where the company operates a manufacturing center of excellence. With the newly secured capital, IceMOS will also increase activity in its Arizona research innovation center and Tokyo-based design operations.
Meet mSJMOSTM: The Power Device That Challenges Industry Norms
mSJMOSTM is a new silicon-based power semiconductor developed by IceMOS. The product combines Silicon MEMS manufacturing techniques with mature node CMOS Super-junction Power MOSFET structures. This integration introduces a novel semiconductor behavior aimed at significant energy efficiency improvements.
Built on over 70 patents held by the company, mSJMOSTM represents a silicon device architecture that offers an alternative to wideband gap technologies. It functions at 650 Volts, 750 Volts, 900 Volts, and 1200 Volts, targeting performance levels suitable for complex, high-efficiency applications.
Why Investors Back IceMOS: Insights from 57 Stars and Global Backers
The investment decision by 57 Stars LLC reflects a focused interest in technology and sustainability sectors. The firm contributed $7.5 million and cited IceMOS’s innovation in silicon semiconductors for power management systems as a key factor.
IceMOS aligns with 57 Stars’ sustainability investment strategy, and the funding came from multiple private equity funds under the firm’s management. Their investment followed financial and tax due diligence by EY, legal advisories from Tughans LLP and Purrington Moody Weil LLP, and environmental, health, and safety assessments from SLR Consulting.
According to 57 Stars Managing Director Bernard McGuire, IceMOS demonstrates a strong potential in high-growth sectors including electric vehicles and data centers.
Beyond Silicon Valley: How IceMOS Builds a Global Tech Footprint
IceMOS operates through a distributed infrastructure. Its headquarters are located in Paradise Valley, Arizona, while advanced manufacturing takes place in Belfast, Northern Ireland. The company also manages a design center in Tokyo, Japan. This global setup supports its product development, design iteration, and manufacturing scalability.
IceMOS plans to increase its workforce to over 100 employees following the Series E funding, enhancing its ability to deliver to international markets.
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A Strategic Leadership Move That Signals Growth Ambition
Niall Lyne has joined IceMOS as Chief Operating Officer and Executive Vice President of Global Sales. His career includes leadership roles at Analog Devices, Intersil, and Renesas Electronics. In his new position, Lyne is tasked with optimizing company operations and driving revenue growth as IceMOS prepares for commercial deployment of its new products.
Semiconductors That Power Sustainability from EVs to Aerospace
IceMOS targets applications in multiple advanced technology sectors where energy efficiency is essential. These include:
- Artificial Intelligence (AI)
- Internet of Things (IoT)
- Renewable energy (wind and solar)
- Electric vehicles
- Aerospace systems
- Big data infrastructure
Founder and Chairman Dr. Samuel J. Anderson, MBE, described IceMOS’s devices as foundational for decarbonization strategies, offering CO₂ reduction through efficient power management.
What This Means for Northern Ireland’s Tech Scene
IceMOS participated in the Northern Ireland Investment Summit held in September 2023, where approximately 200 global investors were introduced to regional opportunities. The event was backed by the Department for Business and Trade, the Northern Ireland Office, and Invest Northern Ireland.
Northern Ireland Secretary of State Hilary Benn highlighted the region’s innovation capacity, cost advantages, and workforce skills. Economy Minister Dr. Caoimhe Archibald emphasized IceMOS’s funding as evidence of Northern Ireland’s appeal for high-tech investment, particularly in advanced manufacturing and engineering.
The company’s continued investment in Belfast is expected to support local job creation and strengthen Northern Ireland’s role in the global semiconductor supply chain.
IceMOS Sets the Stage for Global Growth in High-Efficiency Power Tech
With its patent-backed mSJMOSTM platform nearing launch, new leadership in place, and global operations expanding, IceMOS Technology enters a new stage of growth. The company focuses on energy efficiency in semiconductors and plans to extend its reach across critical sectors while contributing to sustainable technology development.
Executive statements and investor engagement reflect confidence in the firm’s ability to meet evolving demands in power device technologies. The current funding enables IceMOS to enhance R&D, scale production, and support a larger international customer base.
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