电子行业周报：Meta引领碳化硅光波导应用，AR眼镜应用或成为碳化硅领域重要增长曲线

Investment Rating - The industry investment rating is "Overweight" [1] Core Views - The report highlights that silicon carbide (SiC) may become a significant growth curve in the AR glasses application, driven by Meta's innovative use of SiC in optical-grade applications [4][5] - The report indicates that the demand for SiC substrates is expected to grow significantly, with a projected market size of 1.08 billion yuan, driven by the maturation of AR glasses and display applications [7] Market Performance Review - During the week of March 10 to March 14, 2025, the Shanghai Composite Index rose by 1.39%, while the Shenzhen Component Index increased by 1.24%. The ChiNext Index saw a decline of 1.76%, and the Shenwan Electronics Index decreased by 0.62% [3][58] - The best-performing sector was printed circuit boards, which rose by 8.63%, while optical components experienced a decline of 3.35% [3][58] Industry Developments - Meta has demonstrated the potential of SiC in wearable devices, enhancing its application in clean energy systems, aerospace, electric vehicles, telecommunications, and quantum computing [5][6][55] - A joint venture between Sanan Optoelectronics and STMicroelectronics has officially launched a silicon carbide wafer factory, expected to achieve mass production by Q4 2025, marking a significant milestone in domestic SiC power chip production [6][50] - The report notes that the refractive index of SiC is approximately 2.7, superior to traditional glass, and highlights its advantages in high-temperature resistance and heat dissipation [6][7]