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聊一聊Memory--被低估的万亿赛道
傅里叶的猫· 2025-09-14 13:42
Core 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].
静态时序验证,走向消亡?
半导体行业观察· 2025-09-14 02:55
Core Viewpoint - The article discusses the evolving challenges in static timing analysis (STA) within the semiconductor industry, emphasizing the need for adaptation to new factors affecting timing, such as voltage drop, thermal effects, and aging, particularly with the rise of advanced technologies like 3D stacking [3][4][7]. Group 1: Static Timing Analysis (STA) Evolution - STA has been a foundational technology for ensuring that designs meet timing requirements, but it must evolve to address new timing challenges that arise from increased complexity and activity-related factors [3][4]. - Traditional methods relied on fixed delay calculations, but as designs grow larger and more complex, the need for dynamic analysis that considers various influences becomes critical [4][5]. - The industry is moving towards incorporating thermal effects and aging into STA processes, as these factors significantly impact performance and reliability [7][8]. Group 2: Factors Affecting Timing - Voltage drop due to increased current demands at advanced nodes is a significant concern, leading to potential performance degradation if not properly managed [5][6]. - Thermal effects are becoming more pronounced with the adoption of 3D stacking technologies, necessitating a shift towards thermal-aware STA methodologies [7][8]. - Aging and manufacturing variations are increasingly important, especially in long-lifecycle products, requiring more sophisticated analysis techniques to predict their impact on timing [7][8]. Group 3: Methodologies and Tools - There is no one-size-fits-all methodology for STA; approaches must be tailored to specific markets, technology nodes, and performance requirements [8][9]. - Companies are adopting instance-based analysis to better understand the effects of voltage drop and aging on timing, which involves detailed modeling of each component's performance under varying conditions [6][9]. - The integration of voltage and temperature sensors within chips is emerging as a solution to dynamically adjust clock frequencies in response to detected timing issues, enhancing design reliability [10][11]. Group 4: Future Outlook - The complexity of modern chip designs is increasing, leading to greater demands on STA tools for accuracy and computational efficiency [10][11]. - As the industry continues to innovate, addressing the challenges posed by new technologies will be essential for maintaining the relevance of STA [10][11]. - The ongoing evolution of STA reflects the industry's need to balance accuracy with computational costs, ensuring that designs can meet performance targets without excessive resource expenditure [10][11].
光莆股份:目前公司的光集成传感3D叠Die封装产品主要应用在智能手机等产品中
Zheng Quan Ri Bao Wang· 2025-09-05 10:46
Group 1 - The core viewpoint of the article highlights that Guangpu Co., Ltd. (300632) is actively engaging with investors regarding its 3D stacked die packaging products, which are primarily used in various advanced technologies such as smartphones, smart wearables, drones, robots, and AR/VR devices [1] - The company's 3D stacked packaging technology is derived from high bandwidth memory (HBM) technology, indicating a potential for technological synergy and expanded applications in the market [1]
6月10日深圳!TrendForce集邦咨询半导体产业高层论坛启幕
TrendForce集邦· 2025-04-23 03:54
Core Viewpoint - The semiconductor industry is undergoing rapid restructuring driven by global tech competition and the AI computing power revolution, with significant focus on wafer foundry, advanced packaging, IC design, memory, and third-generation semiconductors [1][2]. Group 1: Semiconductor Industry Trends - The demand for high-performance chips is ignited by AI models like DeepSeek, leading to intensified competition among wafer foundry manufacturers for advanced processes like 2nm and 1nm [1]. - The mature process sector is experiencing fluctuating capacity utilization due to weak demand in the consumer electronics market [1]. - The competition in the wafer foundry industry is shifting from capacity expansion to ecosystem integration, highlighting regional clustering effects [1]. Group 2: Advanced Packaging and IC Design - Advanced packaging is gaining momentum under the AI wave, with technologies like Chiplet and 3D stacking becoming mainstream [1]. - Manufacturers are accelerating their layouts, making heterogeneous integration capabilities a core competitive factor, although challenges in capacity, cost, and industrial collaboration are emerging [1]. - IC design companies are fully embracing AI, innovating from cloud training chips to edge inference terminals, with a noticeable trend towards collaborative development across packaging, foundry, and design stages [1]. Group 3: Memory and Storage Market Dynamics - The demand for high-performance products like HBM and DDR5 is surging due to the explosion of AI and data centers, while the enterprise SSD market continues to expand amid digital transformation [2]. - Emerging fields such as smart vehicles and humanoid robots are creating differentiated storage solution demands [2]. - However, memory prices are experiencing significant volatility due to international circumstances and weak consumer electronics demand, leading to future uncertainties [2]. Group 4: Third-Generation Semiconductors - Breakthroughs in silicon carbide (SiC) for electric vehicles and AI server power supplies, along with innovations in gallium nitride (GaN) for fast charging and humanoid robot joint drives, are resonating in the market [2]. - The global third-generation semiconductor industry is transitioning from laboratory experiments to large-scale applications, with strategic value in the context of AI computing power potentially reshaping the power semiconductor market landscape [2]. Group 5: Upcoming Industry Forum - TrendForce will hold the 2025 Semiconductor Industry Forum in Shenzhen on June 10, 2025, featuring senior analysts discussing the current state and future of the semiconductor industry [3][4]. - The forum aims to provide strategic planning insights and a platform for in-depth exchanges among industry leaders [3].
DRAM“危机”
半导体行业观察· 2025-04-20 03:50
Core Viewpoint - The article discusses the rapid advancements in AI and the challenges posed by the "memory wall" problem, highlighting the need for innovative storage solutions to meet the increasing demands of AI models and high-performance computing [1][2]. Group 1: Memory Wall and HBM Technology - The growth of AI models has led to an exponential increase in model parameters, creating significant demands on computing resources, particularly storage bandwidth [1]. - Traditional DRAM bandwidth growth is lagging behind processor performance, with DRAM bandwidth increasing only 1.6 times every two years compared to processor performance increasing threefold [1]. - HBM technology has emerged as a revolutionary solution, offering data transfer speeds of 1.2TB per second, significantly alleviating memory bandwidth pressure [2]. Group 2: 3D Ferroelectric RAM - 3D Ferroelectric RAM (FeRAM) is highlighted as a potential disruptor in the DRAM landscape, with companies like SunRise Memory developing innovative FeFET storage units that promise tenfold storage density improvements over traditional DRAM [4][5]. - This new technology boasts a 90% reduction in power consumption compared to traditional DRAM, making it particularly advantageous for energy-sensitive AI applications [5]. - SunRise Memory aims to leverage existing 3D NAND fabrication processes for mass production, indicating a strategic approach to commercialization [5][6]. Group 3: Other Emerging Storage Technologies - Neumonda GmbH and Ferroelectric Memory Co. are collaborating to develop "DRAM+" non-volatile memory, which integrates ferroelectric effects to create low-power, high-performance storage solutions [8][9]. - Imec's 2T0C DRAM architecture represents a significant innovation, allowing for higher density and improved performance by eliminating the need for capacitors [10][11]. - Phase Change Memory (PCM) is also gaining traction, with advancements in nanowire technology reducing power consumption significantly while maintaining high performance [19][20]. Group 4: Market Outlook and Industry Implications - The semiconductor industry is undergoing a transformation driven by AI, with various new storage technologies vying to replace traditional DRAM [25]. - The emergence of diverse storage solutions, including 3D Ferroelectric RAM, DRAM+, and IGZO 2T0C, indicates a shift towards a more versatile storage market that can cater to different application needs [25]. - The ongoing developments in storage technology are expected to reshape the semiconductor landscape, presenting both opportunities and challenges for industry players [25].