SUMCO Corporation, trading over the counter as SUOPY, is a leading manufacturer of silicon wafers used in the global semiconductor industry. Established in 1999 through the integration of the silicon wafer operations of two major Japanese conglomerates, the company specializes in the definition, development and production of monocrystalline and polycrystalline silicon wafers. These wafers serve as the fundamental substrate for semiconductor devices in applications ranging from consumer electronics to automotive systems and industrial power modules.
The company’s core product portfolio includes standard and advanced silicon wafers, silicon-on-insulator (SOI) wafers, epitaxial wafers, and specialty substrates designed to meet the ever-tightening performance and reliability requirements of chipmakers. SUMCO invests heavily in research and development to push wafer diameters to larger sizes and to refine surface and crystalline quality, enabling higher transistor density, lower power consumption and improved yield for fabricators across logic, memory and power device segments.
Headquartered in Tokyo, Japan, SUMCO operates an extensive network of manufacturing and R&D facilities in Japan, the United States, Europe and Asia. The company leverages its global footprint to provide just-in-time deliveries and technical support to leading semiconductor manufacturers worldwide. Over its history, SUMCO has expanded capacity in line with the industry’s migration to 300mm wafers and has laid the groundwork for next-generation nodes through pilot production lines and collaborative development agreements with major foundries and device makers.
SUMCO’s senior management team, comprised of industry veterans with decades of semiconductor experience, directs corporate strategy with a focus on technological innovation, operational excellence and sustainability. Under this leadership, the company continues to explore new materials and process technologies, while maintaining stringent quality controls and environmental standards. As the demand for semiconductors grows across emerging markets such as electric vehicles, artificial intelligence and 5G communications, SUMCO is well-positioned to support the evolving needs of the world’s chipmakers.
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