半导体设备
Lithography, etch, deposition, inspection, and advanced packaging tools.
需求为什么传导到这里
晶圆需求最终转化为设备需求：光刻、刻蚀、沉积、检测，以及把 HBM 堆叠与逻辑芯片键合的先进封装环节。设备离 AI 的新闻标题隔了两步，却比产能早一步。
瓶颈在哪
某些工序全球实际上只有一家供应商。而限制加速器出货量的，多次是先进封装产能，而不是晶圆投片量。
这是关于供应商集中度与交期的结构性观察，不是对任何标的的看法。
本层级的公司
- TER受益
Automated test equipment for semiconductors, including AI accelerator test.
- AMAT受益
Deposition, etch, and process equipment across logic, memory, and packaging.
- LRCX受益
Etch and deposition equipment, heavily used in memory and advanced packaging.
- KLAC受益
Process control, inspection, and metrology systems.
- ASML受益
Lithography systems, including the EUV tools used at leading-edge nodes.
- ONTO受益
Inspection and metrology, including advanced packaging process control.
- ACMR受益
Wafer cleaning and surface preparation equipment.
引用这些标的的公开 13F 申报
供研究参考，不构成任何推荐。以下是已向 SEC 存档的事实；把某个标的归入本层级是我们的分类，申报人并未作出这样的表述。
- ARK Investment Managementreported a position inTERForm 13F-HR for the period ending 2026-06-30, filed 2026-08-14 · SEC filing
- Bridgewater Associatesreported a position inTERForm 13F-HR for the period ending 2026-06-30, filed 2026-08-14 · SEC filing
下列条目来自 SEC 公开的 Form 13F-HR 申报，由申报主体就所示期间申报、并在其后提交 —— 它们不是当前持仓。Form 13F 仅覆盖美股多头头寸：不含空头、现金、非美资产和大多数衍生品，且申报的头寸可能已被卖出。把某个标的归入某一层级是 XingAI 的分类，不是申报人的。此处没有任何推荐，机构申报持有某标的也不构成你持有它的理由。
同一赛道
Descriptive positioning only. `stance` says whether a company's business is exposed to a layer, never whether to buy it. Layers with no exposure are not recommendations to add any.