证券日报网讯光莆股份（300632）11月19日在互动平台回答投资者提问时表示，公司业务覆盖半导体光 集成传感器、光应用、新材料等领域，目前未直接涉及培育钻石相关业务。公司投资参股的企业化合积 电产品包括金刚石热沉片等，主要应用于芯片散热领域。 ...

Core Viewpoint - The article emphasizes the urgent need to address the "hotspot" issues in semiconductor chips due to increasing power density and shrinking sizes, highlighting diamond as an ideal thermal management material due to its superior thermal conductivity and other advantageous properties [2][5][10]. Group 1: Thermal Management Challenges - The semiconductor industry is progressing towards smaller nodes (2nm, 1.6nm, and 1.4nm), leading to unprecedented thermal management challenges as chips generate significant heat during operation [2][5]. - Ineffective heat dissipation can create hotspots within chips, resulting in performance degradation, hardware damage, and increased costs. For instance, when chip surface temperatures reach 70-80°C, reliability decreases by 10% for every 1°C increase [5][6]. Group 2: Advantages of Diamond as a Thermal Material - Diamond exhibits the highest thermal conductivity among known materials, reaching 2000 W/m·K, which is significantly higher than silicon, silicon carbide, and gallium arsenide [3][10]. - Diamond's bandgap of approximately 5.5 eV allows it to operate stably in high-temperature and high-voltage environments, making it suitable for high-power electronic devices [3][11]. - The material's exceptional current-carrying capacity, mechanical strength, and radiation resistance further enhance its reliability and lifespan in demanding conditions [3][11]. Group 3: Applications and Innovations - Diamond can be utilized in various forms, including diamond substrates, heat sinks, and microchannel structures, to effectively manage heat in semiconductor applications [10][11]. - Companies like Akash Systems have developed diamond cooling technologies that can reduce GPU hotspot temperatures by 10-20°C, cut fan speeds by 50%, and extend server lifespans while saving millions in cooling costs [10]. - The Diamond Foundry has made significant advancements in producing single-crystal diamond wafers, which can enhance GPU performance by three times and reduce temperatures by 60% [38][40]. Group 4: Industry Developments and Company Cases - The diamond industry in China is concentrated in regions like Henan, Shandong, and Jiangsu, with companies like Zhongnan Diamond and Huanghe Whirlwind dominating the market [31]. - Wald has reported a revenue of 679 million yuan in 2024, with a focus on CVD diamond heat sink products, indicating a growing market for diamond-based thermal management solutions [54][59]. - Power Diamond is collaborating with Taiwan's Jiesao Enterprise to enhance its capabilities in diamond functional materials, particularly for semiconductor cooling applications [65].

Group 1: Impact of Export Restrictions - The recent export control measures on superhard materials, including diamond micro-powder and diamond single crystals, will positively affect domestic diamond composite sheet manufacturers due to changes in procurement cycles and prices for micro-powder [3] - The controlled micro-powder is a key upstream product for diamond composite sheets, indicating a potential increase in domestic production efficiency [3] Group 2: Business Overview - The company focuses on superhard materials, employing a "1+N industry layout" strategy to expand into multiple application fields [3] - In the first half of 2025, the company achieved revenue of 26,051.95 million yuan and a net profit of 5,321.84 million yuan, with R&D investment of 2,871.89 million yuan, accounting for 11.02% of revenue [3] Group 3: Research and Development - The company specializes in CVD diamond technology, developing proprietary MPCVD synthesis and processing equipment to produce high-quality, large-size ultra-pure CVD diamonds [4] - CVD diamonds are being explored for applications in high-end manufacturing sectors, including jewelry, precision tools, optical windows, and semiconductor devices [4] Group 4: Core Competitiveness - With over 20 years of experience, the company is a leading player in the composite superhard materials market, particularly in resource extraction and engineering products [5] - The company’s products demonstrate superior wear resistance, impact resistance, and thermal stability, positioning it as a strong competitor against imported products in the high-end drilling market [5] Group 5: Market Outlook - The domestic oil and gas service market is expected to recover, leading to increased demand for diamond composite sheets in resource extraction [8] - The precision processing sector is experiencing growth due to the transformation of high-end manufacturing and the rapid expansion of the new energy vehicle market, enhancing the market share of superhard tools [8] - The CVD diamond market is anticipated to accelerate, with ongoing research and development leading to new functional applications [8]

Group 1 - The core viewpoint of the article highlights the establishment of a fourth-generation diamond semiconductor project in Urumqi, with a total investment of 265 million yuan, aimed at producing diamond heat sink plates and cultivated diamonds, which have significant applications in high-end GPU cooling [1] - The project is set to commence construction in September 2025 and aims for completion and production by May 2026, filling a gap in the domestic market for high-performance semiconductor materials [1] - Diamond is recognized as a fourth-generation semiconductor material due to its ultra-wide bandgap and high thermal conductivity, being referred to as the "ultimate semiconductor material" [1]

Group 1 - The core viewpoint of the article highlights the establishment of a fourth-generation diamond semiconductor project in Urumqi, with a total investment of 265 million yuan, aimed at producing diamond heat sink plates and cultivated diamonds, which have significant applications in high-end GPU cooling [1] - The project is set to commence construction in September 2025 and aims for completion and production by May 2026, filling a gap in the domestic market for diamond semiconductor materials [1] - Diamond is recognized as the "ultimate semiconductor material" due to its ultra-wide bandgap and high thermal conductivity, making it suitable for electronic and optoelectronic applications [1]