投资笔记：半导体掩膜版的投资逻辑分析（含平板显示）（13634字）

Group 1: Definition and Classification of Photomasks - Photomasks, also known as photomask or lithographic mask, are essential tools in microelectronics manufacturing for transferring patterns onto substrates [2][4] - Photomasks can be classified into quartz masks, soda masks, and others, with quartz masks being preferred for high-precision applications due to their superior optical properties [6][16] Group 2: Manufacturing Process of Photomasks - The manufacturing process of photomasks is complex, involving multiple steps such as CAM file processing, photoresist coating, laser lithography, developing, etching, and inspection [6][9] - Key parameters such as critical dimension (CD) and overlay accuracy are crucial for ensuring the quality and yield of photomasks [9][10] Group 3: Photomask Industry Chain - The photomask industry chain consists of upstream raw material suppliers, midstream manufacturers, and downstream users including IC manufacturers and flat panel display (FPD) producers [14][16] - Major players in the midstream photomask manufacturing include companies like HOYA, DNP, and LG-IT, while downstream users include TSMC and Intel [14] Group 4: Market Characteristics of Semiconductor Photomasks - The semiconductor photomask market is projected to reach USD 5.4 billion, with mature processes accounting for 87% of the market share [34] - The market has shown steady growth, with a compound annual growth rate (CAGR) of nearly 7% from 2020 to 2023 [34][39] Group 5: Market Characteristics of Flat Panel Display Photomasks - The flat panel display photomask market is primarily driven by demand in China, which accounted for 57% of global demand in 2022 [57] - The market is expected to grow, with a projected increase in demand for larger and higher precision displays [60][62] Group 6: Competitive Landscape of Photomasks - The global semiconductor photomask market is highly concentrated, with major players like Photronics, Toppan, and DNP controlling over 80% of the market [69] - Domestic manufacturers in China are rapidly catching up, with companies like SMIC and Longtu Photomask making significant advancements [69][74] Group 7: Future Trends in Photomasks - The development of advanced logic processes and specialty processes represents two major directions in semiconductor manufacturing [82] - The trend towards smaller feature sizes and increased integration in semiconductor devices will drive demand for high-precision photomasks [84]