The carbon-based semiconductor selector technology jointly developed by SK Hynix and Kioxia has successfully obtained a Chinese patent (Patent No. CN119866175A). This innovative technology proposes a novel selector structure that uses a carbon layer. By injecting dopants into the carbon material to control its resistive properties, the technology enables the switching operation of storage elements. Compared to existing metal-based selectors, the carbon-based selector offers significant advantages in thermal stability and integration density, making it particularly suitable for 3D NAND flash memory and emerging non-volatile storage devices. This technological breakthrough has laid a solid foundation for enhancing the performance of next-generation storage devices and strengthening global competitiveness.

Patent Portfolio and Corporate Strength

According to the China National Intellectual Property Administration, as of October 2024, 99 patents applied for by SK Group's associated companies in 2021 have been approved, an increase of about 21% compared to the previous year. Among them, SK Hynix received the most approvals, with 67 patents. The acquisition of these patents not only demonstrates SK Hynix's deep accumulation in the field of storage technology but also reflects its continuous innovation in achieving high-density hardware and low-power consumption. For example, SK Hynix has also obtained important patents such as "3D Semiconductor Device" (Patent No. CN119864335A) and "Semiconductor Device and Storage Device Including a Complementary Delay Circuit" (Patent No. CN119811447A), further expanding its technological base.

Strategic Cooperation and Industry Impact

The cooperation between SK Hynix and Kioxia is of great significance to the industry. As global leading memory companies, SK Hynix and Kioxia hold important positions in the DRAM and NAND markets respectively. This joint research and development not only addresses common technological challenges but also demonstrates the potential for strategic cooperation that transcends competitors. This cooperation model provides new ideas for addressing the limitations of fine processing and the challenges of high integration density.

Future Outlook

With the rapid development of artificial intelligence and high-performance computing, traditional storage technologies are facing new challenges and opportunities. SK Hynix's innovative patents and joint research and development projects, such as the Selector-Only Memory (SOM), are providing new solutions to meet the demands of the artificial intelligence era. The continuous advancement of these technologies is expected to further enhance SK Hynix's competitiveness in the global storage market.

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