Micron Technology(US:MU) 傅里叶的猫·2025-09-14 13:42Core Viewpoint - The semiconductor storage market is expected to reach a historical high of $167 billion in 2024, driven by demand recovery in mobile phones, PCs, and servers, with NAND Flash and DRAM markets projected at $69.6 billion and $97.3 billion respectively [4][12]. Summary by Sections Overview of Storage Chips - Storage chips are essential components in modern electronic devices, categorized into volatile and non-volatile types. Volatile storage loses data when power is off, while non-volatile storage retains data [5]. Types of Volatile Storage - Static Random Access Memory (SRAM) is fast but costly, used in high-speed applications like CPU caches [6]. - Dynamic Random Access Memory (DRAM) is widely used in smartphones, PCs, and servers, requiring constant refreshing to maintain data [7]. - High Bandwidth Memory (HBM) offers high speed and bandwidth, suitable for AI accelerators, but is also expensive [7]. Non-Volatile Storage - NAND Flash is the mainstream large-capacity storage, known for its low cost and high capacity, but has slower write speeds and limited write cycles [8]. - NOR Flash is used for storing programmable code, offering fast random read speeds but with smaller capacity and higher costs [8]. AI Device Storage Requirements - AI devices require high-capacity, high-bandwidth, and low-power storage solutions, with LPDDR5 or LPDDR5X being the mainstream choices [9]. - The cost of storage in AI devices may account for 10-20% of overall hardware costs, reflecting its high priority in these applications [9]. Market Trends - The storage market experienced significant price increases in 2021, followed by a period of inventory digestion in 2023-2024, with prices expected to rebound starting late 2023 [12][14]. - HBM revenue is projected to double from $17 billion in 2024 to $34 billion in 2025, driven by strong demand [14]. 3D Stacking Technology - 3D stacking technology is crucial for meeting the high capacity, bandwidth, and low power requirements of AI storage chips, with ongoing developments in both packaging and wafer levels [19]. Industry Chain - The storage chip industry chain consists of upstream materials and equipment, midstream design and manufacturing, and downstream applications [20][23]. - The design segment has the highest profit margins due to high technical barriers, while packaging and testing have lower margins due to intense competition [23]. Recent Price Movements - Micron has paused pricing due to AI SSD demand shortages, with planned price increases of 20-30% for AI-related products [25].