玻璃基板，越来越近了

Core Viewpoint - Glass is transitioning from a background consumable to a core component in semiconductor packaging, providing essential substrates and dielectric layers for advanced applications [2][5]. Group 1: Glass in Semiconductor Manufacturing - Glass has been utilized in modern wafer fabs, supporting silicon wafers during thinning processes and forming sealed MEMS caps [2]. - The low thermal expansion coefficient (CTE) glass is becoming integral in wafer-level fan-out processes [2]. - The demand for higher bandwidth and power density in AI and high-performance computing (HPC) is driving the need for advanced packaging solutions, where glass serves as a viable alternative to organic laminates and silicon interposers [4][5]. Group 2: Technological Advancements and Market Trends - Leading manufacturers like Intel and Samsung are exploring glass-based platforms for packaging, indicating a shift towards commercial viability for glass substrates [5]. - The introduction of glass core substrates and intermediary layers reflects a broader trend in the semiconductor industry, particularly in advanced packaging and integrated circuit (IC) substrates [5]. - Glass's low dielectric loss and optical transparency are emerging as significant growth drivers beyond computing packaging, particularly in photonic technologies [6]. Group 3: Supply Chain and Competitive Landscape - The transition from pilot lines to mass production for glass substrates hinges on advancements in laser drilling, copper filling, and panel processing technologies [8]. - Understanding the competitive dynamics with silicon and improved organic materials is crucial, as foundries are pushing for mixed wafer-level redistribution, which may diminish glass's advantages [8].