Robotics and IoT Semiconductors

Demand side · servo drives, motor-control MCUs, encoders, wireless MCUs · TI, Infineon, Renesas, Espressif, Nordic

Chinese factories installed 354,000 industrial robots in 2025, 59% of the world total. Robot demand has moved to China and Chinese makers supply 55% of it, but the motor-control MCUs, gate drivers, sensing chips and encoders inside each axis still come mainly from US, European and Japanese chip companies.

Industrial robots installed in 2025, by country, from the International Federation of Robotics: China 354,000, the United States 38,400, Japan 36,219, South Korea about 30,000, Germany 24,842, and about 120,000 in the rest of the world, for 603,000 in total. China took 59% of the world total. Chinese robot makers supplied 195,000 of China's installations, a 55% share of their home market, down from 57% in 2024. INDUSTRIAL ROBOTS INSTALLED, 2025 (IFR) CHINA 354,000 UNITED STATES 38,400 JAPAN 36,219 SOUTH KOREA ~30,000 GERMANY 24,842 REST OF WORLD ~119,500 WHO SUPPLIED CHINA'S 354,000 Chinese makers 55% Foreign makers 45% 59% OF THE WORLD'S NEW FACTORY ROBOTS WENT INTO CHINESE FACTORIES IN 2025
Robots installed, 2025
603,000
China share
59%
Chinese makers in China
55%
US installs
38,400
Servo drives, 2025
~3.6M (computed)
Hub
Sectors

Demand in China

China Installed 59% of the World's New Factory Robots

Robotics demand for chips now sits mostly in China. Chinese factories installed 354,000 industrial robots in 2025, 59% of the 603,000 installed worldwide and a record, according to the International Federation of Robotics (IFR) World Robotics 2026 report. China installed more than nine times as many as the United States, which overtook Japan as the second-largest market at 38,400 units.

Chinese robot makers such as Estun, Inovance and Efort supplied 55% of China's installations, but the share slipped from 57% in 2024 as foreign suppliers grew 27%. Inside the robots, the motor-control microcontrollers, gate drivers, isolated sensing chips and encoders still come mainly from US, European and Japanese chip companies. The robot is increasingly Chinese; much of its silicon is not.

Installations

The US Passed Japan, but China Installed Nine Times More

Industrial robot installations by country, 2025
MarketInstallationsChange from 2024Note
China354,000+20%59% of the world; Chinese makers supplied 195,000 (55%)
United States38,400+12%Overtook Japan as the second-largest market
Japan36,219-19%Lowest in a decade; home of Fanuc and Yaskawa
South KoreaAbout 30,000-1%Highest robot density in the world
Germany24,842-8%Largest market in Europe; EU total 60,500, down 11%
World603,000+11%Operational stock passed 5 million robots, up 9%

Inside an axis

Each Robot Axis Repeats the Same Chip Chain

The chips in one industrial robot axis. The robot controller sends position commands over an industrial Ethernet link such as EtherCAT. Each axis has a servo drive with a motor-control microcontroller or DSP, gate drivers, a power stage of IGBTs, MOSFETs or GaN transistors, and current-sensing amplifiers or isolated converters. The servo motor carries a position encoder chip that reports the shaft angle back to the drive. A typical six-axis arm repeats this chain six times, so 603,000 robots in 2025 needed about 3.6 million servo drives (computed). Controller MPU, SAFETY MCU ETHERCAT SERVO DRIVE, ONE PER AXIS Motor-control MCU TI C2000, RENESAS Gate drivers ISOLATED, PER PHASE Power stage IGBT, MOSFET, GAN Current and voltage sensing ISOLATED ADCS, AMPLIFIERS Encoder link, comms ETHERCAT ASIC, PMIC Servo motor THREE PHASES Encoder IC SHAFT ANGLE, 17-26 BIT x6 AXES IN A TYPICAL ARM 603,000 ROBOTS X 6 AXES = ABOUT 3.6 MILLION SERVO DRIVES IN 2025 (COMPUTED). SUPPLIER NAMES ARE EXAMPLES OF EACH CLASS.
The chip chain in one robot axis. A six-axis arm repeats the servo drive six times. Supplier names are examples.

Suppliers

The Motor-Control Chips Come From US, European and Japanese Suppliers

Main chip classes in industrial robots and their suppliers
Chip classJob in the robotLeading suppliersWhere made
Motor-control MCUs and DSPsRun the current, speed and position loops in each servo driveTexas Instruments (C2000), Renesas, STMicroelectronics, Infineon, NXPTI and some Renesas parts in their own fabs; many at TSMC
Power transistorsSwitch motor current; GaN entering low-voltage cobot and humanoid jointsInfineon, Mitsubishi Electric, Fuji Electric, onsemi, ST; EPC and Navitas for GaNEurope, Japan, US; GaN at TSMC and in-house fabs
Gate drivers and isolationDrive and isolate the power stageTI, Infineon, ADI, Silicon Labs, BroadcomMostly abroad; TI and ADI partly in US fabs
Isolated sensingMeasure phase current and bus voltageTI, ADI, Infineon, AllegroUS, Europe, Asia
Encoder ICsReport shaft angle at 17 to 26 bitsiC-Haus, ams OSRAM, Renesas, Broadcom; Japanese robot makers build their ownGermany, Austria, Japan
Controller processorsPlan motion, run safety logic and visionIntel, AMD, NXP, TI; NVIDIA Jetson for AI visionTSMC and Intel fabs

Humanoids

Humanoids Multiply the Joint Count Five Times or More

Humanoid robots multiply the per-axis chip chain: a humanoid has 20 to 40 or more actuated joints against six in a factory arm, plus cameras, force sensors and a battery. China builds most of the world's humanoids today. The largest single plan is in Texas: Tesla's Optimus factory at Giga Texas, designed for 10 million Optimus 4 robots a year, 10 times its Fremont line, with volume production targeted for summer 2027. At 1,100 to 2,200 chips per robot, that one plant at full rate would need 11 billion to 22 billion chips a year (computed). See Humanoid Semiconductor Stack for the chip content of a humanoid and Humanoids and Robotics for who builds them and on which computers. Joint-level chips are covered on GaN Motor Drive ICs, Encoder and Positioning ICs and Force-Torque Sensor ICs.

IoT

IoT Runs on Wireless Microcontrollers Made Mostly at TSMC

The Internet of Things (IoT) runs on wireless microcontrollers: a small processor, radio, memory and security block on one die, sold in hundreds of millions. The largest Wi-Fi microcontroller maker, Espressif Systems of Shanghai, grew revenue 27.8% to about CNY 2.57B in 2025 and has shipped more than 1.5 billion chips; TSMC makes a significant portion of its products (Espressif 2025 annual report). Industrial IoT adds sensors, isolated interfaces and security chips to the same pattern.

Wireless MCU suppliers for IoT
SupplierHeadquartersMain radiosWafers made by
Espressif SystemsShanghai, ChinaWi-Fi, Bluetooth LE, Thread, ZigbeeTSMC
Nordic SemiconductorTrondheim, NorwayBluetooth LE, Thread, cellular IoTTSMC
Silicon LabsAustin, TexasBluetooth LE, Zigbee, Thread, Wi-FiTSMC
NXP, TI, Infineon, ST, RenesasEurope, US, JapanBluetooth LE, Wi-Fi, sub-GHzOwn fabs and foundries
Realtek, MediaTekTaiwanWi-Fi, BluetoothTSMC and UMC

US status

Few Robot Chips and Few Robots Are Made in the US

  • Some US volume
  • US planned
  • Made abroad
US production status of robot and IoT chip classes
Chip classExample US productionNotesUS status
Motor-control MCUsTexas Instruments fabs in Texas and UtahMany competing MCUs are made at TSMC in TaiwanSome US volume
Isolated sensing and gate driversTI; ADI Wilmington, MassachusettsPackaged mostly in Southeast AsiaSome US volume
Power transistors and modulesSmall volumesMost made in Europe and JapanMade abroad
Encoder ICsNone at volumeGermany, Austria and JapanMade abroad
Wireless IoT MCUsNone at volumeEspressif, Nordic and Silicon Labs all use TSMC; Silicon Labs designs in AustinMade abroad
Robots themselvesA few US makers38,400 robots were installed in the US in 2025, most imported from Japan, Europe and ChinaUS planned

Record

Page Record

Covers
Industrial robot installations by country, robot supplier shares in China, the chip chain in a robot axis, robot chip suppliers, humanoid links, wireless IoT microcontrollers and US production status
Sources
International Federation of Robotics, World Robotics 2026 (September 24, 2026, via The Next Web); Espressif Systems 2025 annual report; company product and site information for chip suppliers; servo drive count computed by SemiconductorX assuming six axes per robot. Folded in: IoT and IIoT Semiconductors
Last verified
October 2026