# Magnetic levitation wafer transfer robots advance into South Korean semiconductor cleanrooms *Chipmakers deploy contactless vacuum handling systems to eliminate particle defects in sub-two-nanometer fabrication as domestic robotic vendors expand fab market share.* **Published:** August 29, 2026 **By:** Hyun-jung Lee **Section:** Robotics & Automation — South Korea **Format:** Why It Matters **Confidence:** high **Source:** https://eastasiabrief.com/robotics/magnetic-levitation-wafer-transfer-robots-advance-south-korean-semicondu-111 **Publisher:** East Asia Brief (https://eastasiabrief.com/) --- ## What to know - The transition toward contactless vacuum transfer marks a pivotal shift in a specialized fab automation supply chain historically dominated by Japanese and American suppliers. ![Engineers in cleanroom suits monitor an automated vacuum wafer transfer system inside an advanced semiconductor fabrication facility. (AI-generated image)](https://eastasiabrief.com/media/2026-08-28-a011267f78df.webp) *Engineers in cleanroom suits monitor an automated vacuum wafer transfer system inside an advanced semiconductor fabrication facility. (AI-generated image)* South Korean chipmakers are widening their deployment of magnetic levitation and non-contact transfer mechanisms in vacuum wafer handling systems, moving to eliminate mechanical friction particles inside advanced deposition, etch, and extreme ultraviolet lithography chambers. As logic nodes migrate below two nanometers and high-bandwidth memory architectures require hundreds of vertically stacked dies, micro-particle contamination inside vacuum process clusters has emerged as a direct ceiling on front-end yields. Conventional vacuum transfer robots rely on articulated mechanical arms, internal drive belts, harmonic gears, and lubricated ceramic bearings operating under pressures below 10^-5 Torr. In these high-vacuum environments, standard liquid lubricants outgas, while dry-lubricated mechanical contacts generate sub-micron wear particles that vacuum turbomolecular pumps cannot easily evacuate. Magnetic levitation transport and contactless wafer motion systems address this yield loss by using active electromagnetic suspension and linear motor coils to float and propel wafer carriers or robotic end-effectors without mechanical contact. Decoupling moving stages from chamber walls through active magnetic fields and laser sensor feedback measuring positioning thousands of times per second suppresses mechanical wear and particle generation. Furthermore, removing gear trains eliminates lubrication maintenance cycles, lowers the risk of chamber seal breaches during servicing, and enables multi-axis movement with six degrees of freedom inside ultra-high vacuum transfer chambers. The transition toward contactless vacuum transfer marks a pivotal shift in a specialized fab automation supply chain historically dominated by Japanese and American suppliers. For decades, global semiconductor foundries and memory makers depended almost exclusively on vacuum handling robotics engineered by companies such as Brooks Automation of the United States, alongside Sankyo Manufacturing and RORZE Corporation of Japan. These incumbent suppliers established entrenched positions across cluster tool platforms, setting high qualification barriers for alternative robotics vendors due to the financial risk of wafer breakage inside active production lines. South Korean industrial robotics and vacuum automation developers have steadily captured market share by qualifying domestic vacuum transfer robots directly with domestic memory and foundry lines. Raon Robotics, formerly known as Raontech prior to its corporate name change in early 2026, has expanded its commercial footprint across Samsung Electronics and SK hynix wafer fabrication facilities. The company developed four-arm individually controlled vacuum transfer robots capable of handling multiple 300-millimeter wafers simultaneously within high-vacuum cluster tools, securing an estimated domestic market share exceeding 30 percent. Costecsys has similarly expanded its presence in vacuum cluster automation systems and vacuum transfer robotics, surpassing a cumulative shipment volume of 1,400 units by the end of 2023. The company, recognized as an anchor supplier under the Ministry of Trade, Industry and Energy's specialized materials, parts, and equipment program, has developed multi-chamber vacuum transfer platforms that integrate domestic robotics into etch and chemical vapor deposition workflows. These platforms provide local chipmakers with faster engineering modifications, lower maintenance lead times, and an alternative procurement channel amid ongoing geopolitical export compliance requirements. At the lithography level, magnetic levitation is already the foundational architecture for wafer positioning in extreme ultraviolet (EUV) and High-NA EUV systems. In ASML's TWINSCAN platforms, the dual wafer stages that maneuver silicon wafers under projection optics accelerate at up to several times the force of gravity using active magnetic levitation without physical contact. The Dutch lithography maker sources precision stage modules and magnetic levitation sub-assemblies from precision engineering partners such as VDL Enabling Technologies Group (VDL-ETG), which manufactures motion systems capable of picometer-level positioning inside deep vacuum chambers. Beyond dedicated lithography stages, industrial automation vendors are piloting planar magnetic levitation transport systems across cleanroom logistics and vacuum transfer interfaces. Beckhoff Automation's XPlanar system, which utilizes modular electromagnetic tile surfaces to freely levitate and transport mover tiles across six degrees of freedom, is being evaluated for customized fab automation layouts where physical conveyors introduce particle risks. These planar maglev carriers allow fab operators to route wafers dynamically between process chambers, load-locks, and inspection stations without track friction, enabling flexible cluster architectures that bypass the kinematic reach constraints of traditional central robotic hubs. For fab managers and capital expenditure planners at Samsung Electronics and SK hynix, adopting non-contact magnetic levitation and diversifying vacuum robot suppliers carry direct cost and operational implications. Wafer cluster tools represent major capital outlays, often costing tens of millions of dollars per unit across high-density plasma deposition and atomic layer etching bays. Unplanned maintenance downtime caused by vacuum robot bearing failure or particle contamination can cost fab operators millions of dollars per hour. Diversifying the vendor base lowers the total cost of ownership for vacuum cluster tools while establishing dual-sourcing redundancies against supply bottlenecks. The transition toward next-generation vacuum transfer mechanisms is supported by institutional research initiatives in South Korea, where the Korea Institute of Machinery and Materials (KIMM) has conducted national research and development projects focused on magnetic levitation transport systems for high-cleanliness environments. Korean intellectual property filings, including registered patents for magnetic levitation non-contact transfer robots inside vacuum transfer chambers, outline architectures where electromagnetic coil arrays drive multi-axis arms isolated from atmospheric actuators. Fab equipment makers and robotics firms continue to validate these non-contact platforms across memory and advanced packaging lines, focusing initial deployment on particle-critical metallization and dry etching steps. ## Impact map | Event | Korea | China | Japan | Global impact | | --- | --- | --- | --- | --- | | Maglev vacuum transfer adoption | domestic VTR qualification | | legacy robotics competition | particle defect reduction | ## In this story - **Companies:** Raon Robotics, Costecsys, Samsung Electronics, SK hynix, ASML - **Tickers:** 232680.KQ, 005930.KS, 000660.KS, ASML.AS - **Exposed:** Brooks Automation, Rorze Corporation, Beckhoff Automation, VDL Groep - **Policy:** Economic Security, Subsidies - **Impact:** Supply Chain, Capex, Cost Structure ## Primary sources 1. kimm.re.kr 2. irobotnews.com 3. kidd.co.kr 4. hankyung.com 5. elec4.co.kr --- Cite as: East Asia Brief, "Magnetic levitation wafer transfer robots advance into South Korean semiconductor cleanrooms," August 29, 2026. https://eastasiabrief.com/robotics/magnetic-levitation-wafer-transfer-robots-advance-south-korean-semicondu-111