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Fidelix is a South Korean fabless semiconductor company specializing in mobile DRAM, high-speed memory, NOR flash memory, and MCP products.

Last updated September 28, 2026

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Overview

Fidelix (Korean: 피델릭스) is a South Korean semiconductor company operating as a fabless manufacturer of memory products. Its portfolio includes Mobile DRAM, high-speed memory, NOR Flash Memory, and Multi-Chip Packages (MCP). The company is known for its strategic partnership with SMIC in the flash memory segment and is majority-owned by the Chinese semiconductor firm Dosilicon Co., Ltd. (东芯半导体股份有限公司). Fidelix has drawn market attention in connection with export restrictions on NVIDIA AI chips, which reportedly contributed to a surge in its share price. The company is headquartered in South Korea and maintains an official website at fidelix.co.kr.

History

Fidelix is a South Korean fabless semiconductor company focused on memory products. It develops and sells Mobile DRAM, high-speed memory, NOR Flash Memory, and MCP (Multi-Chip Package) solutions. The company's largest shareholder is the Chinese semiconductor firm Dosilicon Co., Ltd. (东芯半导体股份有限公司), and it maintains a strategic partnership with SMIC in the flash memory segment. Fidelix gained market attention when its stock reached the upper price limit amid export restrictions on NVIDIA AI chips. The company operates an official website at fidelix.co.kr.

  • Fidelix stock reaches upper price limit amid NVIDIA AI chip export restrictions

Products and positioning

Fabless memory semiconductor supplier with strategic ties to SMIC and Chinese ownership.

  • Mobile DRAM

    Dynamic random-access memory designed for mobile devices.

  • NOR Flash Memory

    Non-volatile flash memory used in code storage and embedded applications.

  • MCP (Multi-Chip Package)

    Packaging solution combining multiple memory chips in a single package.

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