The Kiyo FX Etcher from Lam Research Corp. - 300 mm focus for advanced logic nodes

Reviewed: ad hoc news B2B & Pro desk. Edited and checked on 2026-06-27, 04:21. Details in the imprint.

The Kiyo FX Etcher from Lam Research Corp. is one of those machines you only notice when you stand next to it in a cleanroom: a tall, quiet cabinet, cables and gas lines tucked behind smooth panels, a small screen glowing with wafer recipes. Engineers talk about it with the same mix of respect and routine they reserve for tools that simply have to deliver.

What the Kiyo FX does

The Kiyo FX Etcher is a plasma etch system for 300 mm wafers, designed to shape high-aspect-ratio features in advanced logic and memory chips. It sits in Lam’s dielectric and conductor etch portfolio, aimed at production lines at 5 nm and below. In practice, it removes material layer by layer from the wafer so that nanoscale trenches and vias stay sharp and clean for later process steps.

Lam describes Kiyo FX as providing tight critical-dimension control, low line-edge roughness and high uniformity across the wafer, all key metrics for chipmakers trying to keep yields up as geometries shrink. When process engineers watch the post-etch inspection images, they are looking for straight sidewalls and repeatable profiles; this is where the tool earns its keep.

Process features and feel

The system is built for high-aspect-ratio etch, meaning it can drill deep structures without widening them too much, a central challenge at advanced nodes. To achieve that, Kiyo FX uses carefully tuned plasma chemistries and hardware controls, combining source power, bias power and gas flows to balance etch rate and sidewall protection. On the factory floor, you hear the low hiss of gases and the occasional click of valves more than any dramatic noise.

According to Lam, customers use Kiyo FX in integrated process flows with its Flex and Exelan platforms, so recipes and maintenance schedules are coordinated across the etch fleet. For process teams, that consistency matters: the same user interface logic, similar chamber design and shared spare parts mean less training time and more uptime, even when the fab is ramping a new node.

Where it is used

Lam positions Kiyo FX for leading-edge foundry and memory customers, where volume production on 300 mm wafers is standard. In these fabs, the tool will often run similar recipes on thousands of wafers per month, making stability and uptime as critical as sheer etch capability. Process engineers like Jessica Chen at a major Asian foundry spend much of their shift watching run charts and reacting to subtle drifts before they hit yield.

Because Kiyo FX is part of a modular platform concept, fabs can configure chambers and options to match their mix of layers and devices. That allows one tool family to support different customers, from DRAM makers driving capacitor scaling to logic producers focused on gate and interconnect structures, without redesigning the entire system.

Control, software and interface

On the software side, Kiyo FX ties into Lam’s equipment control environment that manages recipes, logs process data and interfaces with fab automation. Operators see a fairly tidy screen: lot IDs, steps, alarms, simple trend charts. Underneath, advanced control algorithms adjust plasma parameters within tight windows to keep critical dimensions within spec. For many users, the quiet confidence of the system is more important than showy dashboards.

Lam has been emphasizing data and analytics across its product range, and Kiyo FX benefits from that push. The company talks about leveraging tool data to help customers optimize etch processes faster, cutting time-to-yield when a new node ramps. When you talk to manufacturing managers, they highlight how fewer experimental wafers and faster recipe convergence translate into real savings.

Competition and positioning

The etch market is competitive, with Tokyo Electron, Applied Materials and others all targeting similar high-aspect-ratio needs. Kiyo FX sits in that race as Lam’s answer for 300 mm dielectric and conductor etch, relying on a mix of hardware, chemistry know-how and long-term customer relationships. For chipmakers, switching etch platforms is expensive, so once a tool like this is qualified, it often stays in the line for years.

Analysts following semiconductor equipment note that Lam’s strength in etch and deposition helps it capture a substantial share of fab capex at advanced nodes. That, in turn, makes tools such as Kiyo FX important beyond their technical role, because they anchor multi-year supply and service agreements between Lam and leading chipmakers.

Context and Lam shares

Lam Research, headquartered in Fremont, California, supplies etch, deposition and cleaning systems to most major foundry and memory makers worldwide. The company is listed on Nasdaq, where Lam Research shares (ISIN US5128071082) most recently closed at 379.09 US dollars on June 26, 2026.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.