위드멤스
1 known investors
Korean MEMS specialist making micro test components for display probe units, semiconductor probe cards, MEMS sensors and foundry services.
Also known as (주)위드멤스 · WITHMEMS · WithMEMS Co., Ltd. · 위드멤스
Founders & leadership
Investors · 1
Company profile
researched Aug 2026위드멤스 (WithMEMS Co., Ltd.) is a Korean MEMS company that develops and manufactures micro test components and test solutions for the semiconductor and display industries, and offers MEMS foundry services. Its core business lines are display micro test solutions (high-precision OLED/LCD panel test probe units based on MEMS Ultra Film and MEMS blade probe technology), semiconductor micro test solutions (tailored MEMS pins and guide plates for probe cards, and test sockets for memory and system semiconductors), MEMS foundry work covering unit processes, prototype development and volume production, and MEMS sensors including MEMS scanner solutions for LiDAR and hydrogen leak detection sensors. Factory automation is also listed among its business areas.
The company is registered under semiconductor device manufacturing and machinery for display manufacturing, is classified as an SME (중소기업), and operates an in-house corporate research institute. It is headquartered at 46, Samsung 1-ro 5-gil, Hwaseong, Gyeonggi Province, with an 8-inch MEMS fab and internalised assembly lines. Reported technologies include Ultra Film and MEMS Blade probe solutions, TRAMS VPC, MLP, TSV and IPD technologies, silicon dry etch, CMP, MEMS mirror scanners and hydrogen sensors, with fabrication controlled through a barcode-based MES system.
Founding story
WithMEMS was established in 2017 as a newly incorporated entity spun off and made independent from Gigalane, a special-purpose machinery manufacturer with which it had been affiliated. The MEMS operations trace back to Gigalane's construction and operation of what is described as Korea's first private 8-inch MEMS fab in 2006.
Business model
The company sells MEMS-based test components and test equipment (display probe units, probe card MEMS pins and guide plates, test sockets) to semiconductor and display manufacturers, and additionally provides MEMS foundry services covering unit processes, prototyping and mass production. It frames part of its model as "open innovation" / C&D (Collaboration & Development), creating products jointly with customers.
Revenue comes from manufacturing and supply of MEMS test parts, test units and sensors, plus paid MEMS foundry and collaborative development services. Reported revenue was KRW 20.17bn in 2023, KRW 18.09bn in 2024 and KRW 16.73bn in 2025, with operating losses in 2023-2025.
Traction
Financials reported by credit-data providers show revenue of KRW 20.17bn (2023), KRW 18.09bn (2024) and KRW 16.73bn (2025), with net losses each year and operating losses widening from KRW -0.93bn (2023) to KRW -3.94bn (2025). Paid-in capital is about KRW 2.08bn and total equity KRW 5.72bn as of 31 December 2025. Headcount is reported between 108 and 125 depending on source and date. Products are supplied to OLED production lines of major domestic display makers and exported to overseas display customers.
Latest developments
Company history entries record HBM logic die MPGA socket and MPA (Movable Micro Pillar Array) development plus selection for the IP "Innovation Premier 1000" programme and designation as a top corporate research institute by the Ministry of Science and ICT in 2025, and a Deputy Prime Minister's commendation for its research institute in 2026. FY2025 results show revenue of KRW 16.73bn with an operating loss of KRW 3.94bn and a net loss of KRW 4.65bn.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
Positioned as a specialist MEMS test-component supplier to the semiconductor and display sectors. It has been designated a Global Excellent SME (글로벌 강소기업, 2020 and 2000-company designation in 2024), an export-promising SME, a materials/parts/equipment startup (Startup 100), and its corporate research institute was named a top research institute by the Ministry of Science and ICT. A jobs-site ranking based on disclosed revenue placed it 31st among companies in its electrical/electronic/control industry classification for 2025.
In-house 8-inch MEMS fab and internalised assembly line, proprietary IP in Ultra Film and MEMS blade probe processes (including a claimed world-first 11um fine-pitch UF-S probe unit in 2015), and a combined model of product supply plus MEMS foundry and collaborative development. It holds a recognised corporate research institute and venture/Inno-Biz certifications.
Technology
MEMS-based fabrication on a turnkey 8-inch MEMS fab infrastructure. Technology portfolio includes Ultra Film (UF, UF-S, UF-R) probe unit processes, MEMS Blade probes, TRAMS VPC and TRAMS Pin for fine pitch, MLP, TSV and IPD technologies, silicon dry etch, CMP, FLEX-POGO, MPA (Movable Micro Pillar Array), guideless micro LED probes, HBM logic die MPGA sockets, 2D MEMS scanners for 4D FMCW LiDAR, and hydrogen leak detection sensors. Production quality is managed through a barcode-based MES system built for the MEMS fab.
Go-to-market
Direct supply relationships and vendor registrations with large display and semiconductor manufacturers in Korea and China, combined with collaborative development (C&D/open innovation) engagements and foundry service contracts. A Chinese subsidiary was established in Hefei in 2016 (pre-spin-off history).
Display panel makers and memory/system semiconductor manufacturers, plus companies needing MEMS prototyping or production capacity. The company states it supplies inspection probe units to all OLED production lines of two domestic large customers (referred to as S and L) and exports differentiated MEMS probe units to overseas display makers; registered vendor relationships include Samsung Display, Samsung Electro-Mechanics, Carnavi Mobility, and China's HYC and SINEVA.
Geography
Headquartered in Hwaseong, Gyeonggi-do, South Korea (Seokwoo-dong), with a company-owned headquarters building acquired in 2019. Historical records list a MEMS fab relocated to Dongtan in 2009 and a Chinese corporate entity in Hefei established in 2016. Customers include vendors in Korea and China.
History
Corporate registration dates from 2 May 2017, the year the company was spun off from Gigalane and obtained venture business and Inno-Biz certifications along with establishing a corporate research institute. Pre-spin-off milestones under Gigalane include the 2006 8-inch MEMS fab, a 2009 fab move to Dongtan, a 2012 MEMS Blade probe unit for smartphone OLED panels, 2014 MES deployment, 2015 UF-S 11um fine-pitch probe unit, and 2016 UF-R development plus a Hefei, China entity. After 2017 the company acquired its own headquarters building (2019, 3,500 pyeong), was selected as a Global Excellent SME and registered as a Samsung Display vendor (2020), developed FLEX-POGO and merged with Senplus (2021), gained export-promising SME and talent-development SME designations (2022), registered as a vendor with Samsung Electro-Mechanics, Carnavi Mobility, HYC and SINEVA (2023), and executed a 5-for-1 stock split in March 2023. In 2024 it developed the fine-pitch MEMS TRAMS Pin, a next-generation guideless micro LED probe and a 2D MEMS scanner for 4D FMCW LiDAR; in 2025 it developed an HBM logic die MPGA socket and MPA technology and was selected for IP "Innovation Premier 1000" and as a top corporate research institute.
Risks & controversies
Financial disclosures show three consecutive years of declining revenue and operating losses (2023-2025), a net loss of KRW 4.65bn in 2025 and shrinking equity (KRW 7.41bn in 2023 to KRW 5.72bn in 2025). An industry benchmarking assessment scored the company in the lowest tiers for profitability (7) and stability (11) and the lower tier for activity (18). Business is concentrated on a small number of large display and semiconductor customers.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 14
launches, deals, and filingsSelected in the IP-field 'Innovation Premier 1000' programme and designated a best corporate research institute by the Ministry of Science and ICT.
A special resolution of the 30 March 2023 general shareholders' meeting split each KRW 500 par value share into five KRW 100 par value shares, taking shares outstanding from 4,169,705 to 20,848,525 with capital unchanged at KRW 2,084,852,500. Old share certificates were to be submitted between 30 March and 29 April 2023.
Registered as a supplier with Samsung Electro-Mechanics and Carnavi Mobility in Korea and HYC and SINEVA in China.
The company acquired its own headquarters/plant building of about 3,500 pyeong.
The company was newly incorporated on 2 May 2017, split off and made independent from Gigalane, and in the same year set up a corporate research institute and obtained venture business and Inno-Biz certifications.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 8
primary sources listed
- WITHMEMSwithmems.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does 위드멤스 do?
- Korean MEMS specialist making micro test components for display probe units, semiconductor probe cards, MEMS sensors and foundry services.
- Who are 위드멤스's investors?
- 위드멤스's investors include Laguna Investment.