China's YMTC Fund Invests in SOI Micro to Enhance Chipmaking Technology

In a significant move to fortify China's semiconductor capabilities, a venture capital fund backed by Yangtze Memory Technologies Corp (YMTC) has invested in Guangzhou-based SOI Micro, a firm developing cutting-edge chipmaking technology. This marks a strategic step in reducing reliance on foreign technology while advancing domestic innovation in the sector.

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Focus on FD-SOI Technology

SOI Micro is spearheading efforts to develop fully depleted silicon-on-insulator (FD-SOI) technology, a low-power logic process that complements mainstream chipmaking methods. The technology aims to provide an alternative route for semiconductor manufacturing, aligning with China's broader push for self-reliance in critical industries. The company underwent a shareholder change on Thursday, as reflected in updates on China’s National Enterprise Credit Information Publicity System.

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Capital Boost and New Stakeholder

Following the investment, SOI Micro’s registered capital increased from 2.39 billion yuan to 2.53 billion yuan (approximately US$375 million). The Wuhan-based Changcun Industry Investment Fund has emerged as a new shareholder, though the exact size of its investment and stake remain undisclosed. SOI Micro has not yet commented on these developments.

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YMTC's Strategic Expansion

The Changcun Industry Investment Fund, established by YMTC in 2023 alongside the state-backed Hubei Integrated Circuit Industry Investment Fund, has primarily focused on memory-chip supply chains. However, its latest investment signals an expansion into specialised logic chip manufacturing, an area critical for diversifying China's semiconductor ecosystem.

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Leadership and National Goals

SOI Micro is led by Ye Tianchun, a veteran in the semiconductor field. Ye previously directed the Chinese Academy of Sciences’ Institute of Microelectronics and played a key role in the “02” project, a state initiative aimed at advancing domestic chipmaking equipment and fabrication capabilities. His leadership underscores the strategic importance of SOI Micro’s work in achieving China's technological ambitions.

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Why It Matters

This investment highlights China's ongoing efforts to build a robust semiconductor industry amid global supply chain challenges and geopolitical tensions. By backing innovative technologies like FD-SOI, YMTC and its affiliated fund are positioning China to compete in areas beyond memory chips, potentially reshaping the global chipmaking landscape.

Source: South China Morning Post