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长鑫存储的挑战与内存超级周期

目录

摘要
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核心结论
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长鑫存储(CXMT)已经成为全球第四大 DRAM 厂商,并将对三星、SK 海力士和美光形成越来越明显的长期竞争压力。但 SemiAnalysis 认为,CXMT 的崛起并不等于本轮内存超级周期即将结束:当前 DRAM 缺口足够大,其新增产能短期内仍无法显著改变供需格局。

逻辑链
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  1. CXMT 已经具备规模,但追赶仍受三重约束。 设备方面,EUV 光刻、先进刻蚀和 TSV 相关设备继续受到出口管制;技术方面,其 DRAM 制程仍落后领先厂商数代,HBM 差距更大;市场方面,销售仍高度集中在中国,海外认证和实际份额都很有限。
  2. 国产设备只能不均衡地缓解限制。 中微公司、北方华创等供应商在部分环节取得进展,但每道工序需要不同的设备能力、工艺成熟度与整合经验。单点突破不能自动消除整条制造链上的设备、工艺和良率瓶颈。
  3. CXMT 暂时不是廉价供给冲击者。 中国内存价格同样随全球 DRAM 行情大涨,CXMT 正在享受缺货带来的定价红利,甚至可能难以完全满足中国本土需求。
  4. 长期竞争与短期景气可以同时成立。 CXMT 是领先厂商不可忽视的结构性竞争者,却还不是迫在眉睫的周期终结者。短期市场仍由供应受限、单机内存容量提升、HBM 吸收晶圆产能和 AI 需求增长主导。

关键变量
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后续应重点观察先进设备的可获得性、国产设备在完整工艺链上的成熟度、DRAM 与 HBM 良率、海外客户认证,以及新增晶圆产能能否快于需求增长。真正可能改变周期判断的,不是 CXMT 宣布扩产本身,而是这些产能何时能够稳定转化为具有竞争力的有效位元供给。

中文译文
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CXMT 已成为全球第四大 DRAM 厂商
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CXMT 现在显然已是全球第四大 DRAM 厂商,并希望对 SK 海力士、三星和美光等领先内存供应商施加越来越大的压力。公司一直在扩充产能,而未来几个月大量现金流的积累可能支持其进一步扩产。不过,CXMT 仍面临几项关键挑战。

引用推文:中国长鑫存储将挑战 DRAM 领先厂商

延伸阅读:中国长鑫存储将挑战 DRAM 领先厂商

三项核心挑战
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设备限制
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设备:公司在生产 DRAM 和 HBM 所需的多种先进半导体设备上继续受到出口管制,包括 EUV 光刻设备、先进刻蚀设备和 TSV 相关设备。这些限制仍是 CXMT 向更先进制程节点和更高端内存产品扩张时面临的主要约束。中微公司、北方华创等中国本土设备供应商的崛起确实有助于减轻出口管制的影响,但这种缓解作用非常不对称。

CXMT 在多个工艺步骤上仍面临制造挑战,因为每一道工序需要的设备能力、工艺成熟度和整合经验都不同。换言之,一个设备品类取得进展,并不会自动解决另一个品类的瓶颈。因此,在完整的 DRAM 和 HBM 制造流程中,公司仍会受到设备供应不均、工艺波动和良率风险的影响。

DRAM 与 HBM 封装设备供应商中文版
图 1:中国与海外 DRAM/HBM 封装设备供应商对比。

DRAM 与 HBM 设备供应商中文版
图 2:按氧化扩散、光刻、刻蚀、沉积、离子注入、清洗和检测等工序划分的设备供应商。

技术代差
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技术:尽管 CXMT 的现有节点在持续改善,公司也在推进进一步创新,但其 DRAM 制程技术仍落后领先厂商数代。在 HBM 领域,差距甚至更大。

随着先进设备在下一代 DRAM 缩放中发挥越来越关键的作用,这项挑战可能会随时间推移而变得更加严峻。

HBM 技术路线图中文版
图 3:SK 海力士、三星、美光与 CXMT 的 HBM 技术路线图。

海外市场
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市场:CXMT 目前的大部分业务仍集中在中国。即使公司已经开始通过海外 PC、手机和消费电子品牌的认证,或逐步进入这些品牌的供应链,其全球份额依然非常、非常有限。

长远来看,更广泛的国际市场采用不仅取决于价格和供应能力,还取决于产品质量、认证进展、地缘政治因素,以及客户是否愿意摆脱对现有领先供应商的依赖、实现供应多元化。

为什么 CXMT 不会立即终结内存超级周期
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一些投资者可能会把我们近期对 CXMT 的研究误读为对内存市场完全负面的信号。我们认为,这种解读忽略了本轮周期的核心:严重缺货。

即使 CXMT 继续增加晶圆产能和位元供给,我们仍然认为,极度紧张的 DRAM 供应环境将继续利好所有内存供应商。事实上,CXMT 自己可能都难以完全满足中国本土需求,更不用说像一些人担心的那样“用廉价内存淹没市场”。

同样值得强调的是,CXMT 的内存并不一定“便宜”。中国内存价格也已经大幅飙升,整体走势与全球 DRAM 市场的强劲表现一致。换言之,CXMT 正受益于与领先厂商相同的缺货驱动型定价环境,而不是成为对抗这种环境的通缩力量。以前或许如此,但这一次不是。

因此,CXMT 的崛起不应被视为周期终结者,也不应被视为领先内存厂商迫在眉睫的威胁,而应更多地被看作一种长期的结构性竞争力量。短期内,DRAM 供给不足的规模实在太大,CXMT 的增量产出不足以实质性缓解市场紧张。本轮超级周期仍由供给受限、设备内存容量提升、HBM 对晶圆产能的吸收,以及 AI 驱动需求加速所定义。

CXMT 与三大厂商季度 DRAM 营收中文版
图 4:CXMT、三星、SK 海力士和美光的季度 DRAM 营收走势。

数据入口
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如需 CXMT 和领先内存厂商的完整数据,请联系 sales@semianlaysis.com,并查看我们的内存模型

原文(英文)
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CXMT 已成为全球第四大 DRAM 厂商
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CXMT is now clearly the No. 4 DRAM player globally, and it aims to exert increasing pressure on leading memory suppliers such as SK Hynix, Samsung, and Micron. While the company has been expanding capacity, with further additions likely supported by significant cash flow accumulation in the coming months, CXMT still faces several key challenges.

Quoted tweet

China’s CXMT Is Set to Challenge DRAM Incumbents

三项核心挑战
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设备限制
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Equipment: The company continues to face export controls across a wide range of advanced semiconductor equipment required for both DRAM and HBM production, including EUV lithography, advanced etch tools, and TSV-related equipment. These restrictions remain a major constraint on CXMT’s ability to scale into more advanced process nodes and higher-end memory products. While the rise of domestic equipment suppliers such as AMEC, Naura, and others has certainly helped alleviate the impact of export controls, this relief is highly asymmetric.

CXMT still faces manufacturing challenges across multiple process steps, as each step requires different equipment capabilities, process maturity, and integration know-how. In other words, progress in one equipment category does not automatically solve bottlenecks in another, leaving the company exposed to uneven tool availability, process variability, and yield risk across the full DRAM and HBM manufacturing flow.

Key DRAM and HBM packaging equipment suppliers
Figure 1: Domestic and foreign DRAM/HBM packaging equipment suppliers.

Key DRAM and HBM equipment suppliers
Figure 2: Equipment suppliers by oxidation and diffusion, photolithography, etch, deposition, ion implantation, cleaning, inspection, and other process steps.

技术代差
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Technology: CXMT still trails the incumbents by several generations in DRAM process technology, even as its existing nodes continue to improve and the company pushes forward with further innovation. The gap in HBM is even larger.

This challenge is likely to become more difficult over time, as advanced equipment plays an increasingly critical role in enabling next-generation DRAM scaling.

HBM Technology Roadmap
Figure 3: HBM technology roadmaps for SK Hynix, Samsung, Micron, and CXMT.

海外市场
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Market: Most of CXMT’s presence remains concentrated in China. Even where the company has begun qualifying or penetrating foreign PC, mobile, and consumer brands, its global share remains very very limited. Over time, broader international adoption will depend not only on pricing and supply availability, but also on product quality, qualification progress, geopolitical considerations, and customer willingness to diversify away from incumbent suppliers.

对内存超级周期的含义
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What Does This Mean for the Memory Supercycle?

Some investors may misread our recent research on CXMT as a purely negative signal for the memory market. We think that interpretation misses the central point of this cycle: significant shortage.

Even as CXMT continues to add wafers and bit supply over time, we believe the extremely constrained DRAM environment will remain supportive for all memory suppliers. In fact, CXMT itself may struggle to fully satisfy domestic Chinese demand, let alone “flood the market with cheap memory,” as some might fear.

It is also worth emphasizing that CXMT’s memory is not necessarily “cheap.” Chinese memory pricing has also gone through the roof, broadly tracking the strength seen across the global DRAM market. In other words, CXMT is benefiting from the same shortage-driven pricing environment as the incumbents, rather than acting as a deflationary force against it. This might be true before, but NOT this time.

To that end, CXMT’s rise should be viewed NOT cycle-killer nor imminent threat to leading memory players, but more as a long-term structural competitive force. In the near term, the scale of DRAM undersupply is simply too large for CXMT’s incremental output to materially loosen the market. The supercycle remains defined by constrained supply, rising memory content, HBM wafer absorption, and accelerating AI-driven demand.

CXMT and Big 3 Quarterly DRAM Revenue
Figure 4: Quarterly DRAM revenue for CXMT, Samsung, SK Hynix, and Micron.

数据入口
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For comprehensive data on CXMT and leading memory players, please reach out to sales@semianlaysis.com and check out our Memory Model.

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