📰 DigiTimesDigiTimesDoubao · 实盘不做把握 7/10不做原因:消息已过时
北京时间·🕒 发布 09-11 15:12:20·⟳ 抓取 09-11 16:03:32 +51m12s·⚡ 决策 09-15 13:05:59 +3d21h·42.6 天前
DigiTimes称石英股份炉管产品通过国内DRAM大厂认证，但核心事实公司9月2日互动平台已披露，属旧闻再传播
DigiTimes 9月11日报道的核心事实（炉管通过国内DRAM IDM厂商认证）公司已于9月2日在互动平台自行披露，国内媒体（每经、证券时报）当日即广泛报道，4月互动易更早提及12英寸全部工艺认证；本篇唯一新增是未经证实的‘客户或为长鑫’猜测。认证不等于批量供货，无订单金额或收入增量，消息窗内股价不涨反跌，无事件驱动edge。
📄 原文DigiTimes↗ 原文
China's DRAM supply chain clears another materials hurdle
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不做 石英股份（603688.SH）
旧闻再传播：炉管通过DRAM IDM认证的核心事实公司9月2日互动平台已披露并被国内媒体广泛报道，DigiTimes 9月11日文章仅追加未获证实的长鑫客户猜测，无新增量；认证≠批量供货、无订单与收入弹性，消息窗内股价连跌且无异动，不存在事件驱动edge。后续若公司正式公告长鑫定点/批量采购订单，再按新事件重新研判。
展开详情(成交明细 / 研究档案 / 原文全文 / 决策记录链)
研究档案
结论摘要
国产高纯石英炉管进入DRAM晶圆厂认证环节方向正面，但这是9月2日已明牌的旧闻，DigiTimes仅追加未获确认的长鑫猜测；认证距放量收入尚远且无量化弹性，股价在消息窗内无正反应，不构成新的可交易催化。
消息传播链
- 公司4月已在互动易称自产砂炉管系列在国内头部存储晶圆制造企业完成12英寸全部工艺认证，说明认证进展市场早有预期
- 公司正式表示自主砂炉管高纯石英产品已通过国内具备DRAM大规模量产能力的IDM厂商认证，为本次DigiTimes所述核心事实的真正首发时点
- 晚9天的产业链报道，新增信息仅为引用分析师推测客户为长鑫存储，原文明确注明双方均未确认，并重申认证不等于规模供货市场反应:石英股份9月11日收跌0.23%，无异动
- 国内媒体以‘高纯石英首次打入DRAM大厂’为题二次扩散，无新增事实
关键理由
- 若后续确认客户为长鑫并转入批量采购，石英股份半导体耗材国产替代逻辑将实质强化，但这属于尚未发生的下一步
主要风险
- 公司明确认证不等于批量供货，量产时点与采购份额不确定，且高纯石英砂当前主要受光伏/光源周期拖累
- 长鑫身份仅为第三方推测，公司或客户随时可能否认或不予证实
反向证据
- 做多前查反向 · 来源 web · 日期 2026-09-11 · 影响 weakens
公司自述认证不等于已规模供货、距有意义出货仍需时间；未披露订单金额或半导体业务收入占比，且公司主业仍受光伏石英材料周期影响，无法量化本次事件业绩弹性
检索:石英股份 炉管 认证 批量供货 订单 收入 光伏石英砂 降价 2026 原文 ↗ - 做多前查反向 · 来源 web · 日期 2026-09-15 · 影响 weakens
行情显示9月2日披露后三日连跌（-2.42%/-2.12%/-4.36%），9月11日DigiTimes报道当日-0.23%，近20日累计-6.8%，市场未对该催化正重定价
检索:石英股份 603688 认证后股价表现 9月
先例如何影响了这次决策
对本次决策的影响:支持直接AVOID，不进入标的选择与tp/sl设定
方向:不适用：本信号在新鲜度/增量事实维度即被否证（9月2日旧闻的二次报道），无需用同类认证事件先例校准方向或涨幅
涨幅量级:无可参考幅度，且不应据旧闻构建交易
形态:消息窗内股价9月2-4日连跌、9月11日微跌0.23%，本身即说明该认证披露未带来正重定价
工具执行结果 · 成功 4 · 降级 0 · 失败 0 · 取消 0
- search_processed_events 成功 stock_tools HTTP · 34 ms
{"result": "search_processed_events:agent query=`603688 半导体石英 扩散炉管 客户认证 | pacific quartz quartz furnace tube dram cxmt qualification | 太平洋石英 高纯石英 炉管 dram 长鑫 认证`；结构化索引覆盖完整 72 小时；旧记录兼容扫描近 0.0/72 小时、0 条本臂决策(完整)，返回 0 条候选。未命中只表示这些 agent query 表达式没有召回候选，不能据此证明消息首发或不是重复；按当前事件继续正常研判。"} - normalize_ticker 成功 stock_tools HTTP · 96 ms
{ - web_search 成功 doubao_search · 1,398 ms
豆包搜索结果（原始查询:太平洋石英 高纯石英砂 炉管 半导体 DRAM 客户认证 长鑫 2026年9月；API SearchType:web） - stock_quote 成功 stock_tools HTTP · 366 ms
{
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China's DRAM supply chain clears another materials hurdle
Levi Li
, DIGITIMES, Taipei
Sep 11, 2026, 15:12
0
Powered by AI
China's semiconductor localisation effort has reached another upstream materials milestone. Jiangsu Pacific Quartz Co. has secured qualification for high-purity quartz products at a domestic DRAM manufacturer capable of large-scale production.
The company said its furnace-tube series, made using internally produced high-purity quartz sand, had passed the customer's certification process. The products are intended for semiconductor manufacturing involving 300mm wafers. According to Guandian , Pacific Quartz said it is continuing qualification work with customers in China and overseas, seeking to broaden its semiconductor quartz materials business and strengthen its supply-chain position.
The customer was not identified. Industry analyst TP Huang, host of the China Tech Talk podcast, believes the DRAM manufacturer is CXMT, according to Tom's Hardware . The identification remains speculative, however, and there is no confirmation from either Pacific Quartz or CXMT.
China closes a gap in semiconductor-equipment quartz
The qualification is significant because high-purity quartz is widely used in semiconductor process equipment, where contamination control becomes increasingly demanding at advanced manufacturing stages.
Semiconductor furnace tubes generally use roughly 5N-class high-purity fused quartz, while quartz used across process equipment typically ranges from about 4N5 to 5N, equivalent to approximately 99.995% to 99.999% silicon dioxide (SiO₂) purity.
Pacific Quartz has developed a broader portfolio of semiconductor quartz consumables, including LPCVD diffusion tubes, wafer boats, quartz ingots, quartz plates and high-purity quartz tubes. Its products have also undergone qualification with major semiconductor equipment suppliers including Lam Research and Tokyo Electron (TEL).
The latest DRAM qualification is particularly notable because the furnace-tube products use Pacific Quartz's own high-purity quartz sand. It suggests China is increasingly capable of linking domestic quartz purification with downstream processing and qualification at a high-volume memory fab, reducing reliance on imported materials for at least part of the semiconductor equipment supply chain.
Qualification, however, should not be confused with commercial scale. Pacific Quartz has cautioned that passing customer certification does not mean volume supply has begun, and further time may be required before meaningful production shipments materialise.
The harder quartz problem remains unresolved
The milestone also exposes the limits of China's progress.
Quartz used in semiconductor processing equipment is distinct from the exceptionally pure material required for crucibles used to grow silicon ingots. These fused-quartz crucibles must withstand extreme temperatures while introducing virtually no contaminants into the silicon that will eventually become semiconductor wafers.
High-purity quartz used for such crucibles typically exceeds 99.999% SiO₂, with particularly stringent limits on critical impurities. The Quartz Corp, one of the major suppliers, describes its high-purity quartz as 99.999% pure silica and identifies semiconductor crucibles as a core application.
Supply of this premium material remains highly concentrated. Large-scale high-end output is centred on deposits around Spruce Pine, North Carolina, used by Sibelco and The Quartz Corp, while Russian Quartz supplies smaller volumes. Academic research has likewise identified China's continuing dependence on imported high-end high-purity quartz raw materials.
Pacific Quartz therefore appears to have crossed an important qualification threshold without eliminating China's most difficult quartz dependency. Its progress strengthens domestic sourcing for consumables used inside semiconductor manufacturing equipment, potentially extending localisation deeper into DRAM fabs. It does not yet demonstrate that China can independently supply the ultra-pure quartz needed further upstream to manufacture crucibles for semiconductor-grade silicon ingots.
That distinction matters. The immediate breakthrough is not complete quartz self-sufficiency, but the emergence of a more credible domestic materials chain stretching from purified quartz sand to equipment-grade components qualified for advanced 300mm memory production.
Article
edited by Jerry Chen
AI Search
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Home
Tech
Semiconductors
China's DRAM supply chain clears another materials hurdle
Levi Li
, DIGITIMES, Taipei
Sep 11, 2026, 15:12
0
Powered by AI
China's semiconductor localisation effort has reached another upstream materials milestone. Jiangsu Pacific Quartz Co. has secured qualification for high-purity quartz products at a domestic DRAM manufacturer capable of large-scale production.
The company said its furnace-tube series, made using internally produced high-purity quartz sand, had passed the customer's certification process. The products are intended for semiconductor manufacturing involving 300mm wafers. According to Guandian , Pacific Quartz said it is continuing qualification work with customers in China and overseas, seeking to broaden its semiconductor quartz materials business and strengthen its supply-chain position.
The customer was not identified. Industry analyst TP Huang, host of the China Tech Talk podcast, believes the DRAM manufacturer is CXMT, according to Tom's Hardware . The identification remains speculative, however, and there is no confirmation from either Pacific Quartz or CXMT.
China closes a gap in semiconductor-equipment quartz
The qualification is significant because high-purity quartz is widely used in semiconductor process equipment, where contamination control becomes increasingly demanding at advanced manufacturing stages.
Semiconductor furnace tubes generally use roughly 5N-class high-purity fused quartz, while quartz used across process equipment typically ranges from about 4N5 to 5N, equivalent to approximately 99.995% to 99.999% silicon dioxide (SiO₂) purity.
Pacific Quartz has developed a broader portfolio of semiconductor quartz consumables, including LPCVD diffusion tubes, wafer boats, quartz ingots, quartz plates and high-purity quartz tubes. Its products have also undergone qualification with major semiconductor equipment suppliers including Lam Research and Tokyo Electron (TEL).
The latest DRAM qualification is particularly notable because the furnace-tube products use Pacific Quartz's own high-purity quartz sand. It suggests China is increasingly capable of linking domestic quartz purification with downstream processing and qualification at a high-volume memory fab, reducing reliance on imported materials for at least part of the semiconductor equipment supply chain.
Qualification, however, should not be confused with commercial scale. Pacific Quartz has cautioned that passing customer certification does not mean volume supply has begun, and further time may be required before meaningful production shipments materialise.
The harder quartz problem remains unresolved
The milestone also exposes the limits of China's progress.
Quartz used in semiconductor processing equipment is distinct from the exceptionally pure material required for crucibles used to grow silicon ingots. These fused-quartz crucibles must withstand extreme temperatures while introducing virtually no contaminants into the silicon that will eventually become semiconductor wafers.
High-purity quartz used for such crucibles typically exceeds 99.999% SiO₂, with particularly stringent limits on critical impurities. The Quartz Corp, one of the major suppliers, describes its high-purity quartz as 99.999% pure silica and identifies semiconductor crucibles as a core application.
Supply of this premium material remains highly concentrated. Large-scale high-end output is centred on deposits around Spruce Pine, North Carolina, used by Sibelco and The Quartz Corp, while Russian Quartz supplies smaller volumes. Academic research has likewise identified China's continuing dependence on imported high-end high-purity quartz raw materials.
Pacific Quartz therefore appears to have crossed an important qualification threshold without eliminating China's most difficult quartz dependency. Its progress strengthens domestic sourcing for consumables used inside semiconductor manufacturing equipment, potentially extending localisation deeper into DRAM fabs. It does not yet demonstrate that China can independently supply the ultra-pure quartz needed further upstream to manufacture crucibles for semiconductor-grade silicon ingots.
That distinction matters. The immediate breakthrough is not complete quartz self-sufficiency, but the emergence of a more credible domestic materials chain stretching from purified quartz sand to equipment-grade components qualified for advanced 300mm memory production.
Article
edited by Jerry Chen
AI Search
Related stories
AI and satellite demand drive quartz components toward lower noise, jitter and higher precision
TXC eyes 30% optical module share by 2027
Taiwan quake damages key quartz tubes at fabs, putting chip recovery in focus
Glotech sees growing demand for quartz cloth on M9 CCL shift
China counters US trade pressures with semiconductor raw materials
Show more
Categories
Chips + components Passive, PCB, other IC components
Tags
China DRAM equipment manufacturing materials quartz silicon
Share this article
Other links
Related topics
Global supply chain: China market
Asia
Regions
BIZ FOCUS
Sep 14, 08:00
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Monday 14 September 2026
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