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【学习笔记】存储产业之原厂、利基与模组厂

  • 2026-05-28 11:50:17
【学习笔记】存储产业之原厂、利基与模组厂

      最近看了不少AI产业链方面的资料,从个人目前的认知看“存储确定性更强”,因此,这周开始重点学习存储知识,并将认为重要的内容(内容可能很初级,行业专家请勿浪费时间)整理为学习笔记留存。

      从本质来讲——原厂是"造面粉的",利基厂是"做特色小杂粮的",模组厂是"用别人的面粉做面包卖的"。 三者处在产业链的不同位置,干不同的活,赚不同的钱。


一、原厂(存储晶圆原厂 / IDM)

定义:具备自主设计 + 晶圆制造能力的存储芯片厂商,是整个产业的最上游和绝对核心,掌握着存储颗粒(Die/Wafer)的生产权。

项目

说明

核心壁垒

 百亿美元级建厂投入、先进制程工艺、数千步工艺 know-how、专利墙

代表企业

 DRAM:三星、SK海力士、美光(三巨头≥90%份额);

国内→长鑫存储

 NAND:三星、铠侠、WD/Sandisk、美光、SK海力士;

国内→长江存储

主营品类

 大宗型存储——DRAM(内存)和 NAND Flash(闪存),用量最大、标准化程度最高

盈利模式

靠技术代差 + 规模效应 + 周期中的供给调控赚取制造利润,毛利极高但周期波动剧烈(AI时代,天量数据源源不断,周期性可能弱化)

商业模式

几乎全是 IDM(垂直整合),从设计到制造到封测一条龙

原厂决定了存储芯片的性能上限、容量、成本和全球产能供给,是整条链的话语权掌控者。


二、利基厂(利基型存储厂商)

定义:不做大宗DRAM/NAND红海竞争,而是聚焦用量较小、制程要求较宽松、但生命周期很长(5-10年)的细分存储品类——统称利基型(Niche)存储

利基型品类

典型场景

NOR Flash

 BIOS/UEFI

 代码存储(路由器、主板、车载)

SLC NAND

 工控、安防——追求擦写寿命而非容量

成熟制程 DRAM

(DDR3/DDR4 老节点)

 电视、物联网、老设备——不需要最先进制程

SRAM / EEPROM / 特种存储

 极小容量、超高可靠场景

项目

说明

核心壁垒

 工艺成熟度

 车规/工规认证

 客户关系粘性(一旦导入很难换

代表企业

 兆易创新(NOR全球前列 + 利基DRAM)

 北京君正华邦电子旺宏、普冉、聚辰等

商业模式

Fabless(设计公司),晶圆交给台积电/中芯/华虹代工;

 不直接做模组或品牌,卖裸芯片给模块厂/终端厂

周期特性

 利基的周期不跟大宗完全同步——当原厂把老产线转去HBM/DDR5时,利基受益于需求外溢反而可能出现供给缺口→涨价

⚠️ 注意:"利基厂"和"原厂"不是并列的上下游关系,而是从产品品类/市场竞争定位维度切出来的概念——原厂做的是"大宗主粮",利基厂做的是"特色杂粮",两者都处在产业链较上游(卖的是芯片颗粒,不是成品)。


三、模组厂(存储模组厂商 / Module Maker)

定义不造晶圆,向上游原厂采购存储颗粒/晶圆,搭配主控芯片 + PCB + 固件算法,通过封装测试做成终端能直接用的成品——SSD固态硬盘、内存条(DIMM)、U盘、存储卡、eMMC/UFS模组等。

项目

说明

核心能力

 固件调校、颗粒筛选分级、BOM成本控制、先进封测、渠道品牌、供应链"低买高卖"的库存管理

代表企业

 全球:金士顿(绝对龙头)、威刚、群联、十铨等
 国内A股:江波龙佰维存储、朗科、德明利等

资产属性

 轻资产(相比原厂),重运营、重渠道、重供应链

盈利模式

 加工/品牌溢价 + 周期中的库存价差(低价囤货→涨价卖出,毛利可短期暴增)

困境

 夹心饼干——上游原厂涨价它成本就升,下游消费端涨价传导又不一定顺,两头受气


四、三者的关系全景图

关键关系要点

关系

解释

原厂 → 模组厂

模组厂是原厂最重要的出货通道之一,尤其覆盖原厂不愿直接服务的分散中小客户、渠道市场、消费配件市场

原厂 ↔ 模组厂(竞合)

三星/美光等也有自有的SSD/内存条品牌,但份额远小于独立模组厂;双方既供货又局部竞争

利基厂 ≈ "小型上游"

利基厂和模组厂是供应关系(模组厂/终端厂买利基厂的NOR/SLC等芯片),但利基厂不属于"原厂"那个顶级寡头圈

周期传导

现货涨价→模组厂最先反应(当季就能提价)→原厂合约价滞后1-2个季度才跟上


五、总结

原厂

利基厂

模组厂

造不造晶圆?

✅ 自己造(IDM)

❌ 多为Fabless

❌ 买别人的

卖什么?

存储颗粒/晶圆

细分品类裸芯片(NOR等)

SSD/内存条/存储卡成品

资产轻重

极重(百亿Fab)

轻(设计公司)

较轻(重运营渠道)

话语权

★★★★★

(寡头垄断)

★★★

(细分垄断)

★★

(受制于原厂供应)

代表企业

三星/海力士/美光/长存/长鑫

兆易/华邦/旺宏/君正

金士顿/江波龙/佰维

原厂掌握"面粉"的独家配方和生产权,利基厂在旁边做差异化小品种,模组厂把面粉做成各种面包送到消费者手里——三者共生,但权力和利润的天平明显偏向前者。利润金字塔如下:

价投尽善,生活尽美!
祝大家账户长虹!
(特别提醒:本文所有提及标的,仅为自己研究学习和记录,不做任何推荐,据此买卖后果自负。)

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  1. CONNECT:[ UseTime:0.000562s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000631s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000251s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000250s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000503s ]
  6. SELECT * FROM `set` [ RunTime:0.000198s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000576s ]
  8. SELECT * FROM `article` WHERE `id` = 491328 LIMIT 1 [ RunTime:0.000402s ]
  9. UPDATE `article` SET `lasttime` = 1779950871 WHERE `id` = 491328 [ RunTime:0.001339s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000438s ]
  11. SELECT * FROM `article` WHERE `id` < 491328 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001238s ]
  12. SELECT * FROM `article` WHERE `id` > 491328 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000459s ]
  13. SELECT * FROM `article` WHERE `id` < 491328 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000793s ]
  14. SELECT * FROM `article` WHERE `id` < 491328 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000755s ]
  15. SELECT * FROM `article` WHERE `id` < 491328 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000833s ]
0.075948s