DiamNEX
Wafer-scale, ultra-thin polycrystalline diamond film production.
| Date | Investors | Amount | Round |
|---|---|---|---|
| investor | €0.0 | round | |
* | CNY20.0m | Seed | |
| Total Funding | 000k | ||
DiamNEX, also known as Shenzhen Zuan Nai Kesi Technology Co., Ltd., is a high-tech enterprise established in 2025 as a spin-off from the University of Hong Kong. The company focuses on the research, development, production, and commercialization of diamond thin film materials. The founder, Dr. Zhiqin Chu, is an associate professor in the Department of Electrical and Electronic Engineering at the University of Hong Kong.
The company's core technology is a proprietary method called "Edge-Exposed Exfoliation," which is a global-first approach to preparing diamond thin films. This three-step process of "growth-incision-mechanical exfoliation" bypasses traditional cutting, etching, and polishing, which significantly increases production efficiency and lowers costs. Using this method, DiamNEX produces wafer-scale (2 to 4-inch and scalable), ultra-flat, and ultra-thin polycrystalline diamond films. These films are transferable, bendable, and possess optical, electrical, and thermal properties similar to single-crystal diamonds, making them suitable for commercialization in various fields.
DiamNEX's business model is centered on providing these advanced diamond films as a solution for large-scale commercial production of diamond semiconductor materials. The company targets the fourth-generation semiconductor market, particularly for applications in extreme power, high-frequency, and thermal dissipation scenarios. In August 2025, the company secured tens of millions of yuan in an angel funding round co-led by Linghui Venture Capital and Haimingrun, with participation from other industry parties. This capital is allocated for product R&D, production line construction, and team expansion. The technology has received a gold medal at the 49th Geneva International Exhibition of Inventions, and the related academic research was published in the journal *Nature* in December 2024.
Keywords: diamond thin film, polycrystalline diamond, semiconductor materials, Edge-Exposed Exfoliation, wafer-scale production, advanced materials, thermal management, high-frequency electronics, power electronics, materials science