Workflow
是说芯语
icon
Search documents
雷军官宣:玄戒O1是3nm旗舰芯片,已投入135亿,2500人!
是说芯语· 2025-05-19 05:25
申请入围"中国IC独角兽" 半导体高质量发展创新成果征集 5月19日早间,小米董事长兼CEO雷军通过微博宣布,小米将于5月22日晚7点召开主题为"新起点"的"小 米战略新品发布会",将正式发布小米旗舰手机SoC芯片玄戒O1,以及小米15SPro、小米平板7 Ultra、 小米首款SUV汽车小米yu7等。预计,即将发布的小米15S Pro新机将首发搭载玄戒O1。 与此同时,雷军也通过其个人微信公众号发布了题为:《雷军:小米玄戒O1,3nm旗舰处理器,力争跻 身第一梯队旗舰体验。》的文章,正式公布了玄戒O1将采用3nm制程的信息,并介绍了小米自研芯片的 研发历程。 雷军首先回顾了小米第一代自研手机SoC "澎湃S1"的失败经历,从2014年9月立项,到2017年正式发 布," 因为种种原因,遭遇挫折", 暂停了SoC大芯片的研发,转向了"小芯片"路线。 包含了快充芯 片、电池管理芯片、影像芯片、天线增强芯片等"小芯片",在不同技术赛道中慢慢积累经验和能力。 直到2021年初,小米宣布造车的同时,还在内部 重启"大芯片"业务,重新开始研发手机SoC。 雷军说:"小米一直有颗"芯片梦",因为,要想成为一家伟大的硬核科 ...
对华为昇腾的限制改口
是说芯语· 2025-05-19 03:26
Core Viewpoint - The article discusses the recent changes in the U.S. Bureau of Industry and Security (BIS) guidelines regarding the use of Huawei Ascend chips and the implications for advanced computing chips from China, suggesting a nuanced shift in U.S. policy towards these technologies [3][4][5]. Group 1: BIS Guidelines and Huawei Ascend Chips - On May 15, BIS modified its earlier statement regarding the use of Huawei Ascend chips, changing the language from an absolute prohibition to a warning about the risks associated with using advanced computing chips from China, including specific Huawei models [3][4]. - The initial version of the statement indicated that using Huawei Ascend chips anywhere in the world violated U.S. export controls, while the revised version emphasizes the risks without asserting an outright ban [4][8]. - The guidelines clarify that Chinese companies or their overseas subsidiaries lack the capability to fully produce chips that meet specific U.S. parameters, which could lead to violations of U.S. export controls if certain American technologies are involved in their production [6][7]. Group 2: Legal Implications and Industry Impact - The guidelines are legally binding, and compliance is determined by these documents rather than public statements, which do not carry legal weight [5][6]. - The use of terms like "likely" and "may" in the guidelines indicates that while there is a risk of violating export controls, it is not an absolute certainty, depending on the specifics of the chip's development and production [7][9]. - The guidelines specifically list Huawei Ascend 910B, 910C, and 910D chips as presumptively subject to U.S. export restrictions, indicating a strong stance from the U.S. government based on prior investigations into Huawei's activities [7][8]. Group 3: Public Perception and Communication Strategy - The initial statement's absolute language could lead to public misunderstanding, suggesting that only Huawei chips are subject to U.S. sanctions, while the revised statement broadens the scope to all advanced computing chips from China [8][9]. - The change in wording reflects a strategic intent to communicate a broader risk associated with Chinese advanced computing technologies, aiming to deter both domestic and international companies from using these products [9][10].
HBM的“暗战”
是说芯语· 2025-05-19 00:35
申请入围"中国IC独角兽" 半导体高质量发展创新成果征集 2024年,HBM成为半导体产业最炙手可热的产品之一。 随着AI大模型和高性能计算的狂飙突进,英伟达等巨头对HBM的需求水涨船高,内存厂的HBM订单早 已售卖一空,尤其是SK海力士,其在HBM市场占有率高达70%,更是赚得盆满钵满。 然而,就在这股浪潮背后,名为"TCB(Thermal Compression Bonding)键合机"的设备,正在悄然决定 HBM产业链的上限,不论是SK海力士,还是美光三星,都在过去一年时间里加大了设备方面的投入, 也让更多设备厂商有机会吃上这波AI红利。 什么是TCB? 先来了解一下目前HBM芯片的键合技术。在传统的倒装芯片键合中,芯片被"翻转",以便其焊料凸块 (也称为 C4 凸块)与半导体基板上的接合焊盘对齐。整个组件被放置在回流炉中,并根据焊料材料均 匀加热至 200ºC-250ºC 左右。焊料凸块熔化,在接合和基板之间形成电气互连。 随着互连密度的增加和间距缩小到 50µm 以下,倒装芯片工艺面临一些挑战。由于整个芯片封装都放入 烤箱中,芯片和基板会因热量而以不同的速率膨胀(即不同的热膨胀系数,CTE),从而产 ...
国家大基金八个月三次减持,什么信号?
是说芯语· 2025-05-18 13:30
申请入围"中国IC独角兽" 半导体高质量发展创新成果征集 5月18日,通富微电(002156)公告称,第二大股东国家集成电路产业投资基金(简称"大基金")计划 在6月11日至9月8日期间,通过集中竞价或大宗交易减持不超过3793.99万股,占总股本2.5%,按最新股 价估算套现规模或超9.5亿元。这是大基金自2024年第四季度以来第三次减持,持股比例将从8.77%进一 步降至6%左右,减持原因为"自身经营管理需要"。 公告发布后, 股吧讨论热度飙升,投资者形成两大阵营。 乐观派 :投资者注意到此次减持比例低于此前预期的3%,且大基金仍保留6%持股,并非清仓式退出, 叠加公司近期完成对京隆科技26%股权收购(强化测试环节布局),部分资金认为这是产业资本的正常 周期退出, 不影响公司与AMD等核心客户的合作稳定性 ——通富微电2023年先进封装产量占中国市场 22.25%,深度绑定AMD(订单占比超80%),在Chiplet、HBM封装等前沿领域技术储备扎实。 谨慎派 :作为行业"风向标"的大基金连续减持,难免引发对板块情绪的担忧: 近期半导体板块已有26 家公司发布减持公告,形成"减持潮"效应 ,而通富微电一季 ...
突发!卓胜微创始人集体减持!
是说芯语· 2025-05-18 13:09
Core Viewpoint - The article discusses the planned share reduction by the actual controllers of Jiangsu Zhaosheng Microelectronics Co., Ltd. (卓胜微), highlighting the implications for the company's stock performance and market perception amid recent financial challenges [2][3][4]. Group 1: Share Reduction Announcement - The actual controllers and their concerted actions plan to reduce their holdings by up to 5.3455 million shares, accounting for 1% of the total share capital, due to personal financial needs [2]. - The reduction will occur within three months after a 15 trading day period following the announcement, with shares sourced from pre-IPO holdings and stock obtained through divorce property division [2]. - The company emphasizes that this reduction complies with regulatory requirements and will not lead to a change in control or affect ongoing operations [2]. Group 2: Financial Performance - As of May 16, the stock price was 73.40 yuan per share, with a total market capitalization of approximately 39.236 billion yuan [3]. - The company reported a significant decline in Q1 2025 revenue, down 36.47% year-on-year to 756 million yuan, resulting in a net loss of 46.623 million yuan, marking a rare quarterly loss [3]. - For the full year 2024, net profit decreased by 64.20% to 402 million yuan, with operating cash flow down 95.76% and inventory increasing by 68.88% to 2.521 billion yuan [3]. Group 3: Industry Context and Future Outlook - As a leading player in the RF chip sector, the company is positioned in key markets such as 5G communications and automotive electronics, benefiting from domestic semiconductor policy incentives [3]. - Despite facing intensified competition and weak global demand, the company continues to invest in R&D, with expenses reaching 999 million yuan in 2024, a 58.53% increase, representing 22.22% of revenue [3]. - Analysts suggest that while the share reduction may cause short-term volatility, the company's technological capabilities and market share remain strong, with potential benefits from emerging markets like smart vehicles and IoT [4].
闻泰科技将成为纯半导体公司
是说芯语· 2025-05-18 01:47
Core Viewpoint - The article discusses the strategic transformation of Wentech Technology from a mobile ODM company to a pure semiconductor company, driven by the need to optimize its business structure and capitalize on the growing semiconductor market, particularly in automotive electronics and AI chips [2][5][7]. Group 1: Company Overview - Wentech Technology confirmed a major asset sale for 4.389 billion, transitioning to a pure semiconductor focus [2]. - The company was previously the largest mobile ODM enterprise, with 73% of its 2021 revenue of 52.7 billion coming from mobile manufacturing, but faced low profit margins in this sector [2][4]. - The ODM business reported a net loss of 1.2 billion in 2024, necessitating the divestment of the struggling product integration business [3]. Group 2: Semiconductor Business Growth - Wentech's semiconductor business has shown strong growth, ranking third globally in power discrete devices, up from eleventh in 2019, and is the top player in China [3][9]. - The global semiconductor market has surpassed 600 billion, with significant demand for automotive electronics and AI chips, providing a favorable market outlook for Wentech's semiconductor focus [5]. - The company has established relationships with seven of the top ten global automotive manufacturers, with a 45% annual increase in automotive-grade chip shipments [5]. Group 3: Financial Implications - The asset sale will reduce total assets from 74.978 billion to an estimated 66.4 billion and liabilities from 40.137 billion to 31.591 billion, improving the company's financial structure [5]. - The 4.389 billion raised from the asset sale will support R&D and capacity upgrades in the semiconductor sector, which requires significant investment [6]. - Focusing on semiconductors allows Wentech to allocate more resources to R&D and production improvements, enhancing product value and market position [6]. Group 4: Strategic Challenges and Opportunities - Wentech faces competition from international giants in the high-end automotive chip market, which holds over 60% market share, necessitating breakthroughs in specific technology segments [6]. - The transition to a semiconductor focus is seen as a strategic adjustment to align with market demands and improve valuation in the capital market [6][7]. - The company's ability to establish barriers in key areas like 12-inch wafer manufacturing and third-generation semiconductor materials will be crucial for its success in the next 3-5 years [7].
华为昇腾产业链
是说芯语· 2025-05-17 14:08
Core Viewpoint - The article discusses the growth and investment opportunities in the AI computing center market in China, particularly focusing on the Huawei Ascend ecosystem and its associated companies across four key areas: complete machines, power supply, cooling, and connectivity [2]. Group 1: Complete Machines - The newly added computing power in 2024 is expected to reach approximately 20,000 PFlops, with the investment scale of China's intelligent computing center market projected to reach 288.6 billion yuan by 2028. In 2023, the market size was 87.9 billion yuan, showing a year-on-year growth of over 90% [3]. - As of August 2024, there are over 300 intelligent computing center projects in China, with a total announced computing power exceeding 500,000 PFlops. About one-third of these projects are planned to have a computing power greater than 500 PFlops, mainly funded by government or telecom operators [3]. Group 2: Power Supply - AI servers utilize three power supply methods: external cabinets, racks, and trays. The power supply unit (PSU) converts high-voltage AC from the grid to 48V DC, which is then further converted to 12V for CPUs and 0.8V for GPUs [15]. - The GB200 NVL72 cabinet is equipped with 48 5.5kW PSUs, providing a total power of 132kW. The increasing power demand in AI servers is expected to expand the AI power supply market [16][21]. Group 3: Cooling - The power consumption of single cabinets has increased from 4-6 kW in traditional computing centers to 20-40 kW or higher in intelligent computing centers. Liquid cooling technology is becoming the preferred choice due to its efficiency and low energy consumption [27]. - The market size for liquid cooling data centers in China was 8.63 billion yuan in 2023, with a growth rate of 26.2%, expected to reach 18.01 billion yuan by 2026 [29]. Group 4: Connectivity - Backplane connectors are crucial for high-performance servers and communication devices, supporting high-speed data transmission and ensuring signal integrity [38]. - The Chinese communication connector market is projected to grow at a compound annual growth rate of 30%-35%, with expectations to exceed 60 billion yuan by 2025, where AI-related connectors will account for over 70% of the market [40].
英伟达中国特供芯片彻底砍掉HBM!
是说芯语· 2025-05-17 08:15
此次推出的Hopper系列降级芯片,是英伟达应对最新管制的举措。尽管采用GDDR7显存会使芯片性能 相比配备HBM的版本有所下降,但据知情人士透露,通过优化芯片架构等技术手段,该芯片仍能满足 中国市场部分人工智能应用场景的需求,在市场上具备一定竞争力。而即将推出的Blackwell架构芯 片,同样以合规为前提,在显存配置上做出调整,旨在以符合法规要求的产品继续深耕中国市场。 申请入围"中国IC独角兽" 半导体高质量发展创新成果征集 据《日经亚洲》5月17日报道,英伟达(Nvidia)为维持中国市场份额,在美政府严格出口管制下,计 划推出两款专为中国市场打造的人工智能芯片。 下一季度,英伟达将向中国客户交付一款进一步降级的Hopper系列芯片;同时,一款基于Blackwell架 构的定制芯片也在筹备中,预计今年晚些时候推出,两款芯片均 采用GDDR7显存替代高带宽内存 (HBM) ,以满足美国出口限制要求。 近年来,美国政府不断收紧对华AI芯片出口管制。拜登政府此前发布的限制措施,要求出口到中国的 芯片算力不得超过一定标准,而HBM作为支撑高性能计算任务(如AI训练和超级计算)的关键组件, 被纳入重点管控范畴。 ...
“最近做存储的老铁们赚翻了!”
是说芯语· 2025-05-17 02:07
Core Viewpoint - The article discusses the recent price surge in storage chips, particularly focusing on DDR4 and Samsung's small-capacity eMMC, highlighting the reasons behind these price increases and their implications for the market [2][11]. Group 1: Price Surge in Storage Chips - The most notable price increases in the storage chip market are observed in DDR4 and Samsung's small-capacity eMMC [2][11]. - Samsung's 8GB eMMC price rose from approximately $1.9 in early March to around $3.65-$3.8 currently, marking a significant increase [7][10]. - The price of 8GB DDR4 has also doubled in recent months, with current prices around $3, up from $1.15-$1.25 in late 2022 [9][10]. Group 2: Reasons for Price Increases - The price increase of small-capacity eMMC is primarily driven by Samsung's announcement of potential production halts for MLC NAND, leading to panic buying among manufacturers [11][12]. - For DDR4, the price surge is attributed to rumors of major manufacturers like Samsung, SK Hynix, and Micron planning to cease DDR4 production by 2025, which has led to increased demand and speculation in the market [12][13]. - Additionally, supply constraints have been reported, with manufacturers reducing production rates, further exacerbating the price increases [12][13]. Group 3: Market Implications - Despite the rise in prices, there are indications that domestic alternatives for DDR4 are facing supply challenges, suggesting that the market may not stabilize quickly [15]. - The overall sentiment in the storage chip market is cautiously optimistic, with ongoing price increases and potential recovery being closely monitored [15].
5000亿美元“投名状”
是说芯语· 2025-05-17 00:26
Core Viewpoint - The article discusses the implications of the U.S. government's recent actions regarding AI chip export regulations, particularly focusing on NVIDIA and its relationship with the Trump administration, highlighting a potential shift in the regulatory landscape that could benefit U.S. chip companies while targeting Huawei specifically [4][6][21]. Group 1: NVIDIA and U.S. Government Relations - NVIDIA's CEO Jensen Huang attended a private dinner with Trump, which coincided with the announcement of a $500 billion investment in AI infrastructure in the U.S. [4][5] - Following the dinner, NVIDIA submitted an unusual request to the SEC for indefinite export licenses for its H20 chips to mainland China, indicating a complex relationship with U.S. export regulations [5][6]. - Two months later, the U.S. Department of Commerce rescinded the "AI diffusion rules," which had been set to impose strict export controls, signaling a potential easing of restrictions for U.S. chip companies [6][10]. Group 2: Impact of Rescinding "AI Diffusion Rules" - The rescission of the "AI diffusion rules" is expected to positively impact U.S. chip companies, allowing them to pursue growth opportunities in regions previously restricted, such as the Middle East [11][12]. - NVIDIA and AMD announced significant collaboration plans in the Middle East, including a $10 billion project to provide advanced chips and software solutions [11][12]. - The new regulatory environment appears to favor U.S. chip companies while simultaneously targeting Huawei, as the U.S. government explicitly warned against the use of Huawei chips in AI applications [15][21]. Group 3: Targeting Huawei - The U.S. Department of Commerce's actions are seen as a direct attack on Huawei, with specific regulations aimed at preventing the use of Huawei's Ascend chips due to their reliance on U.S. technology [15][16]. - The GP10 clause indicates that any company knowingly participating in the sale or support of Huawei's chips could face sanctions, tightening the noose around Huawei's operations [16][18]. - The article suggests that the U.S. government's strategy may inadvertently bolster U.S. chip companies like NVIDIA and AMD by limiting Huawei's capabilities in the AI sector [17][24]. Group 4: Future Considerations - The article raises concerns about the long-term implications of U.S. export controls, suggesting that overly stringent regulations could drive customers to seek alternatives, potentially undermining U.S. technological leadership [25]. - The recent changes in export policy reflect a broader strategy to maintain U.S. dominance in AI and semiconductor technology while navigating the complexities of international trade and competition [25].