UniTest

What UniTest does

UniTest (주식회사 유니테스트, KOSDAQ ticker 281020) is a South Korean manufacturer founded in 2000 that operates two divisions: semiconductor memory test and inspection equipment, and green energy products including perovskite solar cells and solar EPC services. In its semiconductor business, UniTest offers a complete test lineup spanning wafer testers (UNI650, UNI610), memory testers (UNI940A at 400Mbps with 6,144 parallelism, UNI5900 at 9Gbps for LPDDR4/GDDR5/DDR5), burn-in testers (UNI940FL for NAND Flash), module testers (UNI480E), and storage/SSD testers (UNI92K, UNI92KR-6B, PCIe Gen4 to 16Gbps) under the UNI series brand, with subsidiary Unifusion providing logic burn-in solutions (FECBIS series). The company was the first Korean firm to domestically develop and mass-produce memory inspection equipment and has delivered over 1,000 units globally as of May 2019. Key customers include SK Hynix (292B KRW inspection equipment contract May 2026; HBM4 burn-in tester qualified March 2026) and Samsung Electronics (sole supplier for next-gen DRAM post-process main test equipment since 2016), with approximately 55% of semiconductor equipment revenue from exports supported by Taiwan (2005), China (2016), and USA (2012) subsidiaries.

In its green energy division, UniTest develops and manufactures perovskite solar cells in partnership with the Korea Institute of Chemical Technology (KRICT), achieving world-record NREL-certified 20.6% efficiency for large-area cells (200cm²+) in May 2024 and 26.8% for indoor IoT cells in June 2026. The company also produces solar inverters (PV050K-G3LX-JW 50kW, PV500K-G3LX-JN3 500kW) and executes solar/EPC and ESS projects including a 620B KRW ESS contract with KEPCO E&C (January 2023), 210B KRW Naju solar project (2022), and 60.1B KRW Guam solar project (June 2026). A planned 1.213 trillion KRW perovskite manufacturing plant at Saemangeum (66,000m² site) was announced in October 2021, and perovskite mass production shipments to IoT customers commenced in December 2024.

The business model combines one-time capital equipment sales to semiconductor manufacturers (predominantly SK Hynix and Samsung) with project-based solar/EPC contracts won through competitive bidding and direct utility partnerships, plus emerging hardware sales of perovskite cells to IoT device makers. Manufacturing is centered at the new 14,939m² Pyeongtaek factory (December 2021), with 2-3x the capacity of the Yongin headquarters facility. The company operates under a co-CEO structure established March 2025 (Kim Jong-hyun for development/new business, Ahn Soo-hong for management), is publicly listed since December 2006, and reports a homepage-stated revenue of 198.3B+ KRW with 200+ employees, though financial data through 2024-2025 show significant operating losses and revenue volatility tied to contract cycles.

Name

UniTest

Legal name

주식회사 유니테스트

Website

https://uni-test.com

Company type

Public

Founded year

2000

Operating status

Operating

Headcount range

101–250 employees

Short description

UniTest is a South Korean KOSDAQ-listed manufacturer of semiconductor memory test and inspection equipment and perovskite solar cells, serving major memory makers including SK Hynix and Samsung, with growing green energy operations spanning solar EPC and ESS construction.

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)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro industry

PRIMARYHDAHAEAJ

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

Hardware, Technology & Telecom/Semiconductors & Electronic Components/Semiconductor Manufacturing Equipment

SECONDARYEUAMAHAA

Solar PV Module & Cell Manufacturing (Crystalline, Thin-Film)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Renewable Equipment & Component Manufacturing (Modules, Turbines, Inverters, Towers, Blades)

SECONDARYEUACAGAK

Solar Plant Components Supply & Manufacturing (Modules, Cells, Wafers, Mirrors, Heliostats)

Energy, Utilities & Environment/Electric Power Generation/Solar Power Generation (Utility-Scale PV & CSP)

Keywords

• Semiconductor test equipment
• Memory inspection systems
• Perovskite solar cells
• Solar inverters
• Burn-in testing

Headquarters

HQ city

Yongin

HQ country

South Korea

HQ region

Asia

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Semiconductor Equipment Sales: Sales of semiconductor test and inspection equipment including wafer testers, memory testers, storage testers, and burn-in testers. Major customers include SK Hynix. Equipment is sold directly to semiconductor manufacturers domestically and internationally. ~55% of semiconductor equipment revenue is from exports.
2. Solar Energy / EPC: Solar power plant development, EPC (engineering, procurement, construction), and O&M (operations and maintenance). Projects include Naju solar (21B KRW), Chuncheon solar/ESS, and Guam solar (60.1B KRW). Also supplies solar inverters (50kW, 500kW).
3. Perovskite Solar Cell Products: Perovskite solar cell modules for IoT, glass windows, and flexible applications. Mass production shipments began December 2024. Targets indoor IoT markets with low-light performance. Products include BLE modules with perovskite cells for temperature and water-level sensors.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

UniTest designs, manufactures, and sells semiconductor memory test and inspection equipment (wafer testers, memory/burn-in/component/module testers, SSD storage testers, and logic burn-in testers) under the UNI and Uni Fusion brands to global semiconductor manufacturers such as SK hynix and Samsung. The company also develops and sells perovskite solar cells and solar inverters (50kW, 500kW), and executes solar power plant EPC and ESS construction projects for utilities including KEPCO.

Product overview

UniTest is a semiconductor equipment and green energy company offering a comprehensive portfolio of testing solutions and solar products. The semiconductor division provides memory testing equipment (wafer testers, burn-in testers, component testers, module testers) under the UNI series brand, along with storage SSD testers and logic burn-in testers under the Uni Fusion sub-brand. The green energy division offers perovskite solar cells with world-leading efficiency and solar inverters (50kW and 500kW capacity) under the Solar Gate brand. The company serves major semiconductor manufacturers including SK hynix and operates in both domestic and international markets with manufacturing facilities in Yongin, Pyeongtaek, and Saemangeum.

Differentiator

Problem solved

Functional benefit

Products and services

• UNI650 Wafer Tester Wafer-level post-process memory semiconductor tester that evaluates Speed, Data read/Write/Erase, and Repair functions for DRAM and PCRAM wafers, intended for semiconductor manufacturers.
• UNI610 Wafer Tester Wafer tester for memory semiconductor post-process inspection of DRAM device wafers.
• UNI940A DRAM Memory Tester High-speed DRAM memory tester with 6,144 parallelism supporting up to 400Mbps test rates for DDR5 and temperature range from -10°C to 125°C, for memory chip manufacturers.
• UNI940FL NAND Flash Burn-in Tester NAND Flash burn-in tester that validates completed DRAM/NAND chips at high and low temperatures to filter initial defects for memory semiconductor manufacturers.
• UNI5900 Memory Component Tester Memory component tester for completed DRAM chips including LPDDR4, GDDR5, and DDR5 devices, testing Speed, Data Read/Write, and Refresh at 9Gbps.
• UNI480E Memory Module Tester Memory module tester for DDR2/DDR3/DDR4 DRAM modules, testing Speed, Data Read/Write, and Refresh performance at 800Mbps with parallelism of 12.
• UNI92K Storage SSD Tester Storage SSD tester that inspects SSD performance to detect initial defects, supporting U.2, M.2, and FHHL form factors and PCIe NVMe protocol, for SSD manufacturers.
• UNI92KR-6B Storage Tester High-performance storage device tester for SSD quality inspection with parallel testing capability for storage device manufacturers.
• PCIe Gen4 SSD Storage Tester PCIe Gen4 SSD storage tester with up to 512 parallelism and 16Gbps data rate, covering M.2, U.2/U.3, FHHL, and BGA form factors with -40°C to 125°C range.
• FECBIS-1 Logic Semiconductor Burn-in Tester Logic semiconductor burn-in solution for SERDES chips, TCON, and high-peak-current devices, with up to 256 driver-receivers and ambient to -40°C to 150°C range.
• F-1 Logic Burn-in Tester High-specification logic burn-in tester with up to 32 pattern zones, 16 slots per temperature zone, and ambient to 150°C range, for high-end logic devices.
• FECBIS-CP Power IC Burn-in Tester Power IC burn-in tester for high voltage and high peak current applications with up to 64 driver-receivers, for power semiconductor manufacturers.
• PV050K-G3LX-JW 50kW Solar Inverter 50kW wall-mounted outdoor solar inverter with built-in junction box and MPPT control, employing SiC semiconductors for >98% efficiency and proprietary hunting prevention and AC SMPS ON/OFF control.
• PV500K-G3LX-JN3 500kW Solar Inverter 500kW solar inverter with 3-level switching technology and MPPT control, supporting up to 760A output current and IP44 enclosure rating for utility-scale solar plants.
• Perovskite Solar Module Third-generation organic-inorganic hybrid perovskite photovoltaic module with flexibility, light weight, low-cost production, transparency adjustability, and low-light indoor generation, supplied for IoT and BIPV applications.

Quantifiable outcome

• World-record 20.6% certified efficiency for large-area perovskite solar cells (200cm²+), surpassing previous record of 19.2% (China)
• +6 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Nine partnerships are on record, tiered major, minor and core.

• PRU Tamuning LLC (and 3 other entities)majorChannel Partner/ Reseller/ Distributor · 1 June 2026Solar power generation project contract won June 2026 for 601B KRW. PRU Tamuning LLC operates solar power business in Guam. Contract to design and construct/operate solar generation facilities.
• Yongin City (용인특례시)minorStrategic or Co-development Partner · 1 June 2025RE100 implementation support MOU signed June 2025 at Yongin City office. Ceremony attended by Mayor Lee Sang-il, An Soo-hong (CEO of UniTest), Choi Jun-sik (Chamsolra Energy CEO), Kwon Jae-woong (JB Asset Management), and Hong Ju-hyung (Yuanta Securities).
• BT Telecom (비티텔레콤)minorStrategic or Co-development Partner · 1 November 2024Energy harvesting collaboration at BIXPO 2024 exhibition. Jointly showcased perovskite-based BLE modules for temperature sensors and water-level sensors, demonstrating indoor IoT energy harvesting applications.
• Korea Institute of Chemical Technology (한국화학연구소)coreStrategic or Co-development Partner · 1 May 2024Joint development of large-area perovskite solar cell production technology (200cm²+). Achieved 20.6% internationally certified efficiency (May 2024), surpassing China's previous world record of 19.2%. Full commercialization targeted.
• KEPCO Engineering & Construction (한국전력기술)coreStrategic or Co-development Partner · 1 January 2023Jointly won 620B KRW ESS construction contract for Cheonan Jaege-myun substation project (January 2023). Part of KEPCO's 1.2 GWh nationwide public ESS installation program to address renewable intermittency from solar and wind.
• Korea Electric Power Corporation (한국전력)coreStrategic or Co-development Partner · 1 November 2021Agreement signed November 2021 for joint development of 200W glass-window perovskite solar cell prototypes and outdoor exposure testing. ~300B KRW R&D investment through 2025. Jointly pursuing commercialization pathways for window-type building-integrated photovoltaics.
• Gunsan City and Saemangeum Development Agency (군산시, 새만금개발청)majorStrategic or Co-development Partner · 1 October 2021Investment agreement signed October 2021 for perovskite solar cell manufacturing plant construction in Saemangeum industrial complex. 6.6万㎡ site with 1,213B KRW total investment. Ceremony attended by Kim Jong-hyun (CEO), Mayor Kang Im-jun, and Saemangeum Development Agency Director Yang Choong-mo.
• Korea Electric Power Corporation (한국전력)coreStrategic or Co-development Partner · 1 August 2020MOU signed August 2020 for glass-window type perovskite solar cell business with KEPCO. Partnership leverages perovskite's lower production cost vs silicon and alignment with government renewable energy policies. Goal: create market for high-efficiency, low-cost glass-window perovskite solar cells.
• Korea Institute of Chemical Technology (한국화학연구소)coreStrategic or Co-development Partner · 1 August 2016Joint research agreement for next-generation organic-inorganic hybrid perovskite solar cell technology transfer and joint research. Announced August 2016. This partnership enabled world-record perovskite cell efficiency achievements (14.8% in 2019, 20.6% in 2024) through collaborative R&D with KRICT.

Scale indicators12 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Advantest Corporation: Japanese supplier of memory and SoC automatic test equipment; competes head-to-head with UniTest in DRAM ATE and burn-in markets including HBM, with stronger global scale and R&D budget.
• Teradyne Inc. US-based ATE leader covering memory, storage, and SoC test; overlapping product portfolio with UniTest's UNI-series memory and SSD testers, serving similar DRAM/NAND manufacturer customers globally.
• Cohu, Inc. US supplier of semiconductor test handlers and interface products with a strong memory and storage test overlap; competes with UniTest in DRAM module and SSD test handlers used by memory OEMs.
• FormFactor, Inc. US-based probe card and wafer test solutions provider; competes with UniTest's wafer testers (UNI650/610) in DRAM wafer-level post-process inspection across Asian memory fabs.
• Accretech (Tokyo Seimitsu): Japanese manufacturer of probe/test and dicing equipment; competes in wafer-level memory test against UniTest's UNI-series, with comparable Japanese fab customer overlap.
• Hangzhou Changchuan Technology Co., Ltd. Chinese ATE maker focused on memory and SoC testers including burn-in and handler products; competes with UniTest for memory test share in China and within Chinese-Korean cross-border memory fabs.
• Beijing Huafeng Test & Control Technology Co., Ltd. Chinese semiconductor ATE supplier serving memory, mixed-signal, and SoC test applications; regional competitor to UniTest's memory and burn-in product lines in Chinese fabs.
• Hanmi Semiconductor Co., Ltd. Korean semiconductor handler and test equipment maker with overlapping SK Hynix/Samsung customer base; an analogous Korean-domestic test equipment peer competing for memory test capex.

Emerging players

• Oxford PV Ltd. UK-based perovskite-silicon tandem solar cell developer focused on high-efficiency residential and BIPV applications; competes with UniTest's perovskite product line on efficiency benchmarks and BIPV commercial deployment.

Broad incumbents

• First Solar, Inc. US thin-film (CdTe) solar module manufacturer with utility-scale deployment and active perovskite R&D; an incumbent in next-generation solar that competes with UniTest in the broader perovskite/BIPV opportunity.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries2 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 UniTest