What TSE does

TSE is a South Korean manufacturer of semiconductor test interface hardware, founded in 1994 and listed on the KOSDAQ exchange, headquartered in Cheonan, South Korea. The company designs and produces high-performance probe cards (High-Performance Probe Cards and Vertical MEMS Probe Cards), simulation-based device test interface boards, and custom test sockets and COKs for package-level testing across DRAM, Flash, Foundry/Logic, Parametric, and SoC devices. Its flagship i3unify architecture (launched at SEMICON KOREA 2025) integrates these three product categories into a single system under a unified brand. TSE also manufactures MEMS LC components for loopback testing of high-speed I/O ports (USB, Thunderbolt, PCI, SATA) and a Display Test System (ATS) product line spanning OLED TVs to AR/VR glass displays, with AI-assisted image/data processing cited as a component.

TSE generates revenue primarily through direct hardware sales to global semiconductor and display manufacturers, supported by an enterprise field-sales motion and 14 international offices across Korea, USA, Germany, China, Japan, Taiwan, Thailand, Philippines, Singapore/Malaysia, Brazil, and Malta. Pricing is not publicly disclosed and is negotiated enterprise-by-enterprise. The company markets via major industry exhibitions (SEMICON KOREA, SEMICON CHINA, K-Display) and corporate social channels. TSE Group includes six wholly-owned subsidiaries — Megatouch (precision pogo pins), TigerElec and MegaElec (PCB manufacturing), GM TEST (ISO-certified test engineering services), MegaSen (OLED/semi equipment), and LDT (driver IC, OLED/LED solutions) — which collectively enable vertical integration from precision contacts through finished test systems. The company is led by Chairman/Founder Kwon Sang-joon (former Samsung Semiconductor, Schlumberger Korea, Donghwa) and CEO/Vice Chairman Kim Chul-ho, with stated domestic headcount above 1,500, net assets of approximately 370 billion KRW (30th-anniversary disclosure, October 2024), and a publicly stated goal of 1 trillion KRW in sales by 2030.

Name

TSE

Legal name

TSE

Website

https://tse21.com

Company type

Public

Founded year

1994

Operating status

Operating

Headcount range

51–100 employees

Short description

TSE is a South Korean manufacturer of semiconductor test interface hardware — probe cards, interface boards, test sockets, MEMS components, and display test systems — serving global chipmakers and display panel manufacturers through 14 international offices and six wholly-owned subsidiaries.

Ownership category

akta.pro rank

Product category

Semiconductor Test Equipment

NAICS

Semiconductor Machinery Manufacturing (333242), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Testing Laboratories and Services (541380), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823), Services-Testing Laboratories (8734)

akta.pro primary industry

Test, Probe & Burn-In Equipment (Wafer Sort/Final Test) (HDAHAEAJ)

akta.pro secondary industries

Sockets, IC Sockets & Test/Programming Interconnects (HDAHAOAF), Test & Measurement Equipment (Oscilloscopes, DAQ, signal analyzers, calibration benches) (IMAGAFAC), Assembly & Packaging Services (Wirebond/Flip-Chip/FCBGA) (HDAHADAA)

Keywords

• Semiconductor test equipment
• Probe card manufacturing
• Device test interface boards
• Display test systems
• MEMS test components

Headquarters

HQ city

Cheonan

HQ country

South Korea

HQ region

Asia

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Semiconductor Test Equipment Sales: Sale of probe cards, interface boards, and test sockets for semiconductor chip testing. Vertical integration allows in-house production of all three product categories.
2. Display Test System Sales: Sale of Array Test System (ATS) equipment and LED test systems for display panel inspection.
3. MEMS Products: MEMS LC components for loopback testing of high-speed I/O ports.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

TSE designs, manufactures, and sells semiconductor and display test interface hardware for global chipmakers and display panel manufacturers. Its portfolio covers high-performance probe cards, Device Test Interface Boards, package test sockets, MEMS LC components for high-speed I/O loopback testing, and Array Test Systems (ATS) for OLED and LED display inspection. All three core test interface categories — probe cards, interface boards, and test sockets — are produced in-house and unified through the company's proprietary i3unify architecture.

Product overview

TSE offers a portfolio of semiconductor test and inspection hardware products organized around its flagship i3unify integrated architecture. The core product line consists of probe cards (for DRAM, Flash, Foundry & Logic, SoC testing), interface boards (high-speed PCB solutions), and test sockets (for package testing), all unified under i3unify to provide an integrated test solution combining these three component types. Additionally, TSE provides MEMS products (for high-speed I/O loopback testing) and a comprehensive Display Test System (ATS) product line covering both OLED and LED panel testing, incorporating AI technology for advanced display measurement.

Differentiator

Problem solved

Functional benefit

Brands

• i3unify: TSE's integrated semiconductor test system combining probe cards, interface boards, and test sockets into a unified solution for flexible and optimized semiconductor chip testing.

Products and services

• i3unify Integrated System Integrated three-in-one architecture combining probe cards, interface boards, and test sockets into a single efficient system for semiconductor chip testing, providing flexibility and optimized test solutions for diverse testing requirements. For global semiconductor manufacturers.
• Probe Card

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Korea Production Technology Research Institute (한국생산기술研究院)coreStrategic or Co-development Partner · 14 April 2025TSE and the Korea Production Technology Research Institute signed an MOU for technology exchange and cooperation in the semiconductor test technology field. Activities include technology exchange meetings, joint operation of corporate cooperation programs, and sharing of infrastructure and industry information. At the signing ceremony, TSE's probe card and test socket technologies were presented alongside the institute's femtosecond laser and metal ion removal filter technologies.
• Soonchunhyang University Cheonan Hospital (순천향대학교 천안병원)minorStrategic or Co-development Partner · 19 November 2024TSE and Soonchunhyang University Cheonan Hospital signed an MOU for joint occupational safety and health management. The agreement covers joint implementation of employee health examinations, special health examinations, and workplace environment measurements.
• Megatouch Co., Ltd.coreOthersPart of the We TSE Group. Provides Ultra Precision Contact Solution, Micro Contact Solution Pogo Pin, ICT Pin, Battery pin.
• TigerElec Co., Ltd.coreOthersPart of the We TSE Group. Manufacturing high-performance PCB for semiconductor testing.
• GM TESTcoreOthersPart of the We TSE Group. ISO 9001/ISO 14001 certified Semiconductor Test House. Expanded in 2023 to provide the best test engineering services.
• MegaElec Co., Ltd.coreOthersPart of the We TSE Group. High-density multilayer and Fine pitch PCB manufacturing.
• MegaSen Co., Ltd.coreOthersPart of the We TSE Group. OLED and Semiconductor Equipment.
• LDT Inc.coreOthersPart of the We TSE Group. PM/AM OLED, LED, LCD Driver IC, SSN Solution, NI (Bypass Switch, TAP).

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Technoprobe: Technoprobe is one of the world's largest independent probe card manufacturers, competing head-to-head with TSE in MEMS and vertical probe cards for memory and logic testing. Its scale and customer overlap make it a primary direct competitor.
• FormFactor: FormFactor is a leading global supplier of probe cards and advanced wafer test solutions, directly competing with TSE in DRAM, Flash, and logic probe cards. It is the largest pure-play probe card company and shares TSE's key global chipmaker customer base.
• MJC (Micronics Japan): MJC is a Japanese probe card specialist competing with TSE in vertical probe cards and MEMS-based test solutions for memory and logic devices. It shares TSE's focus on high-performance probe technology.
• Yokowo: Yokowo is a Japanese specialist in test sockets and spring probes used in semiconductor package testing, directly competing with TSE's test socket offerings. It serves many of the same global chipmakers.
• Leeno Industrial: Leeno Industrial is a leading Korean manufacturer of test sockets, probe pins, and IC test contactors, directly competing with TSE's test socket and contact solution businesses. As a Korean peer, it shares TSE's customer base and supply chain ecosystem.
• Chunghwa Precision Test Tech (CHPT): CHPT is a Taiwan-based probe card manufacturer competing directly with TSE across memory and logic applications. As a regional Asian rival serving the same foundry/OSAT customers, it is a closely comparable direct competitor.
• ISC (Interconnect Systems Holdings): ISC designs and manufactures high-performance semiconductor test interconnect products including test sockets and interface boards, directly overlapping with TSE's test socket and interface board portfolio. It targets similar memory and logic test applications.

Broad incumbents

• KLA Corporation: KLA is the dominant incumbent in semiconductor process control and inspection, with adjacent presence in test, metrology, and PCB inspection that overlaps with TSE's display test and inspection capabilities. It represents a much larger, broad-based competitor.
• Cohu: Cohu is a broad incumbent in semiconductor test equipment, offering handlers, test contactors, and interface solutions that overlap with TSE's test socket and interface board portfolio. It is a larger, more diversified competitor serving similar end customers.

Regional players

• Intekplus: Intekplus is a Korean automated optical inspection and display test equipment manufacturer, comparable to TSE's Display Test System (ATS) line for OLED and LED panel inspection. It competes most directly in TSE's display test segment.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat7 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@tse_i3unify
• LinkedInlinkedin.com/company/tse21
• Instagraminstagram.com/life.tse

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries6 records

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 TSE