LSE

What LSE does

LSE Co., Ltd. (엘에스이 주식회사) is a South Korean manufacturer of semiconductor wet-cleaning equipment, headquartered in Yongin-si, Gyeonggi-do. The company designs, manufactures, and sells three core hardware product lines — the NSM-Series 12-chamber single wafer processor (sub-20nm), the SI-Series 8-chamber single wafer processor (sub-30nm), and the SC-Series 8-chamber stacked wafer scrubber (sub-20nm) — and is developing next-generation 3D and high-temperature cleaning platforms. Its technology centers on advanced chamber structure, wafer transport modules, and particle/pattern lean control engineered for advanced-node wafer fabrication.

LSE traces its operational lineage to an affiliated research institute established in 2002, with subsequent facility expansions at Anseong (2016) and Anseong 2 (2018), and a wholly-owned Chinese subsidiary, WLSE, established in Wuxi in 2011. The current corporate entity was formed on January 7, 2022 through the acquisition of Mujin Electronics' equipment business division, with registered capital of approximately 28억 KRW (~$2.3M USD) and 201 employees. The company holds ISO 9001/14001/45001/22301 certifications and is recognized as a Korean Corporate Affiliated Research Institute.

The company operates a direct B2B sales model, selling cleaning equipment to semiconductor fabs in Korea and China. Pricing is not publicly disclosed, and revenue figures are not reported in available sources. The 4th fiscal period settlement was announced for March 25, 2026, with Daeju Accounting Corporation appointed as external auditor for fiscal year 2024.

Name

LSE

Legal name

엘에스이 주식회사

Website

https://www.lse-r.com

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

1–10 employees

Short description

LSE is a South Korean semiconductor cleaning equipment manufacturer selling single-wafer processors and wafer scrubbers for sub-20nm and sub-30nm process nodes to semiconductor fabs in Korea and China.

Ownership category

akta.pro rank

Product category

Semiconductor Cleaning Equipment

NAICS

Semiconductor Machinery Manufacturing (333242)

SIC

Special Industry Machinery, Nec (3559)

akta.pro primary industry

Wafer Cleaning & Surface Preparation Equipment (HDAHAEAG)

akta.pro secondary industry

Wafer Handling, Automation & Robotics (AMHS) (HDAHAEAI)

Keywords

• Semiconductor cleaning equipment
• Wafer processing equipment
• Single wafer processor
• Wafer scrubber systems
• Sub-20nm cleaning tools

Headquarters

HQ city

Yongin

HQ country

South Korea

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales

Revenue model

1. Semiconductor Cleaning Equipment Sales: LSE generates revenue through the development, manufacturing, and sale of semiconductor cleaning equipment including Single Wafer Processors (NSM-Series, SI-Series) and Wafer Scrubbers (SC-Series). Equipment is sold directly to semiconductor fabs for use in their manufacturing processes.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

LSE develops, manufactures, and sells semiconductor cleaning equipment used by semiconductor fabrication facilities (fabs). The company offers three main product lines: the NSM-Series and SI-Series Single Wafer Processors, and the SC-Series Stacked Platform Wafer Scrubber. Equipment targets advanced process nodes (sub-20nm and sub-30nm) with proprietary chamber structures and wafer transport modules designed for particle control, pattern lean control, and throughput improvement.

Product overview

LSE (엘에스이 주식회사) is a semiconductor cleaning equipment manufacturer offering three main product lines: the NSM-Series and SI-Series Single Wafer Processors, and the SC-Series Wafer Scrubber. The NSM-Series targets sub-20nm applications with 12 chambers, the SI-Series serves sub-30nm processes with 8 chambers, and the SC-Series provides scrubbing functionality for sub-20nm wafer processing. These equipment products work together to serve semiconductor fabrication cleaning needs across different technology nodes.

Differentiator

Problem solved

Functional benefit

Products and services

• NSM-Series Single Wafer Processor A single wafer processor consisting of 12 chambers with an advanced chamber structure and wafer transport module, designed to improve small-size particle control and throughput for process applications under the 20nm technology node. Targeted at semiconductor fabs performing wafer cleaning at advanced nodes.
• SI-Series Single Wafer Processor A single wafer processor consisting of 8 chambers with an advanced wafer transport module to improve throughput for process applications under the 30nm technology node. Targeted at semiconductor fabs performing wafer cleaning at advanced nodes.
• SC-Series Wafer Scrubber A stacked platform scrubber consisting of 8 chambers with an advanced wafer transport module to improve throughput for process applications under the 20nm technology node. Targeted at semiconductor fabs requiring scrubbing functionality for wafer processing.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators4 records

Recent moves10 records

Expansion highlights4 records

Broad incumbents

• Ulvac: Japanese broad-line vacuum and semiconductor equipment maker with cleaning-related offerings. Comparable in node targeting and customer set, though Ulvac spans many equipment categories.
• Lam Research: U.S. incumbent with broad semiconductor equipment portfolio including wet-cleaning products. Comparable customer base and node focus, though Lam is a broad-line equipment maker rather than cleaning specialist.

Direct peers

• SEMES: Samsung Electronics' semiconductor equipment subsidiary producing cleaning and other front-end tools primarily for in-house Samsung fabs. A large, captive Korean peer in cleaning equipment.
• Tokyo Electron: Global leader in semiconductor cleaning equipment (single-wafer wet stations, scrubbers) and the dominant incumbent LSE competes against. Directly comparable product category, customer base (foundries, memory fabs), and process-node focus.
• SCREEN Holdings: Major Japanese manufacturer of wafer cleaning equipment (single-wafer processors, scrubbers) serving the same advanced-node fab customers as LSE. Closest analog in product portfolio and technology positioning.
• KCTech: Korean semiconductor equipment maker with cleaning and surface-preparation tools serving Korean fabs. Comparable product focus and Korean customer overlap.
• ACM Research: China/U.S.-listed semiconductor cleaning equipment maker focused on single-wafer wet clean, scrubbers, and advanced packaging. Closest mid-size direct competitor to LSE, especially relevant given Chinese fab exposure.
• NAURA Technology: Major Chinese semiconductor equipment conglomerate with wet-cleaning and other front-end tools. Competes in the same Chinese fab customer set where LSE's WLSE subsidiary operates.
• AP Tech: Korean semiconductor cleaning equipment manufacturer serving Korean memory and logic fabs. Direct Korean peer in product category, customer base, and node focus.

Emerging players

• Kingsemi: China-based emerging semiconductor equipment vendor with single-wafer cleaning products targeting advanced nodes. An emerging direct competitor particularly relevant to LSE's China positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/lse-r

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about LSE