Core Viewpoint - GaoHua Technology announced its strategic investment in Suzhou Anbixuan Microelectronics, aiming to advance the iteration and industrial application of optoelectronic encoder technology, marking a significant step in the domestic high-end optoelectronic sensor layout [1] Group 1: Company Strategy - The investment serves as a link to jointly promote the development of new products such as high-end optocouplers, precision pressure sensors, wide dynamic range acoustic sensors, and precision displacement sensors [1] - This move is part of GaoHua Technology's broader strategy to enhance its position in the high-end optoelectronic sensor market domestically [1] Group 2: Market Position and Product Application - Anbixuan is the only domestic chip supplier that has sold over 10 million core chips for optoelectronic encoders, with products widely used in industrial automation, robotics, CNC machine tools, semiconductor production equipment, and new energy vehicles [1] - The company has established a customer base that includes leading domestic enterprises such as Shenzhen Huichuan, and some high-end products and services have gained recognition and application from foreign users [1]

Core Viewpoint - The successful domestic production of high-performance silicon photomultiplier (SiPM) technology by China has broken a 20-year monopoly held by German and Japanese companies, enabling the country to develop advanced medical devices and scientific instruments with a solid "Chinese core" foundation [1][12]. Group 1: Technology Breakthrough - The domestic company Zhongjing Optoelectronics, a subsidiary of China General Nuclear Power Corporation, has established a leading SiPM packaging production line with a yield rate exceeding 90% [1][3]. - The production of SiPM requires extremely high cleanliness standards, surpassing that of surgical rooms, indicating a significant mastery of core technology [3]. - The production line has received EU RoHS environmental certification and is set to pursue stricter ISO certification, positioning it for international market entry [3]. Group 2: Importance of SiPM - SiPM is described as a highly sensitive "photoelectric converter" capable of detecting single photons and converting them into measurable electrical signals [4]. - Compared to traditional photomultiplier tubes (PMT), SiPM operates at a lower voltage (under 100 volts), is more energy-efficient, and is more robust due to its solid-state design [6]. Group 3: Applications of SiPM - SiPM is crucial in high-end medical imaging devices like PET/CT and SPECT, where it converts gamma photons released from radioactive drugs into electrical signals, enhancing tumor detection accuracy [7]. - In high-energy physics, SiPM is used in experiments at CERN and Cherenkov telescopes to capture fleeting light produced by high-energy particles [7]. - SiPM is also essential for advanced driver-assistance systems, improving the performance of LiDAR in adverse weather conditions [9]. - Additionally, SiPM plays a role in radiation monitoring in nuclear power plants and customs checkpoints, ensuring public safety [9]. Group 4: Historical Context and Challenges - Previously, the SiPM market was dominated by foreign companies, with 90% of the market share held by German and Japanese firms due to high technical barriers and complex semiconductor processes [11]. - The breakthrough by Zhongjing Optoelectronics involved the independent development of key technologies such as external resistance quenching (EQR) SiPM and position-sensitive SiPM, directly competing with international standards [12].