Alpha and Omega Semiconductor

What Alpha and Omega Semiconductor does

Alpha and Omega Semiconductor Limited (NASDAQ: AOSL), founded in 2000 and headquartered in Sunnyvale, California, is a designer, developer, and global supplier of power semiconductors spanning Power MOSFETs (low-, mid-, and high-voltage plus hot-swap classes), Silicon Carbide (SiC) MOSFETs, Gallium Nitride (GaN) transistors, IGBTs, Intelligent Power Modules (IPM3/IPM5/IPM7), Power ICs (DC-DC buck regulators, active bridge drivers, multiphase controllers, DrMOS/Smart Power Stages, eFuse, Type-C protection), High Voltage Gate Drivers, Motor Control MCUs, and TVS protection devices. The portfolio comprises 2,300+ products protected by 953 issued patents and is organized around six vertical end markets: Cloud (server, telecom infrastructure), Computing (graphic cards, notebooks), Automotive/EV powertrain, Industrial (power supply), Consumer (home appliances), and Motor Drive (power tools). AOS differentiates itself by integrating discrete semiconductor process technology, IC design, and advanced packaging under one roof through its wholly owned wafer fab subsidiary Jireh Semiconductor in Hillsboro, Oregon, with proprietary platforms including AlphaZBL, AlphaSGT, SmartClamp, A2TM, aMOS, and AlphaIGBT.

The company monetizes primarily through unit-priced hardware sales of semiconductors, with pricing disclosed per part in 1,000-piece quantities (e.g., AOZ71049QI at $2.70, AOZ52986QI at $1.50, AOZ53228QI at $1.40, AOLV66935 at $3.60) and lead times of 12-18 weeks, supplemented by evaluation/sampling programs for design engineers. Distribution is hybrid: 17+ direct sales offices and field application engineers across the US, China (six cities), Hong Kong, India, South Korea, Taiwan, Japan, Germany, Serbia, and the UK, complemented by a worldwide authorized sales partner network with a dedicated partner portal and parametric product search on aosmd.com. Manufacturing combines in-house wafer fabrication at Jireh with outsourced assembly/test, including a flagship five-year, 10-million-unit-per-year OSAT agreement with Kaynes Semicon in Sanand, Gujarat, India for IPM5 production commencing April 2026. Reported revenue stands at $685.9M annually (per company website), with $163.8M in fiscal Q3 2026 and Q4 FY2026 guidance of approximately $168M.

AOS's commercial strategy emphasizes design-in wins with anchor platform customers — most visibly Intel (Panther Lake/Wildcat Lake, AMD Genoa/Turin) and AI server/hyperscale data center buyers — where its products are positioned as differentiated power-management solutions for high-current, high-efficiency applications. Marketing is executed through major industry tradeshows (PCIM, APEC), a technical resource library of 8,353+ documents, dedicated newsroom, and investor relations communications. Insider ownership stands at 16.70% with institutional ownership at 78.97%; the founder Mike F. Chang remains Chairman and EVP of Strategic Initiatives following a March 2025 transition, with Stephen C. Chang as CEO since March 2023 and Yifan Liang as CFO since August 2014. Notable regulatory and capital actions in 2025 include a $4.25M BIS settlement over 2019 Huawei shipments and a $30M board-approved share repurchase program in November 2025.

Name

Alpha and Omega Semiconductor

Legal name

Alpha and Omega Semiconductor Limited

Website

https://aosmd.com

Company type

Public

Founded year

2000

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Alpha and Omega Semiconductor Limited (NASDAQ: AOSL) is a Sunnyvale-based designer, developer, and global supplier of power semiconductors — MOSFETs, SiC, GaN, IGBTs, IPMs, and Power ICs — serving cloud/AI servers, computing, automotive/EV, industrial, consumer, and motor drive markets through direct sales, distribution partners, and an in-house wafer fab.

Ownership category

akta.pro rank

Product category

Power Semiconductors

NAICS

Semiconductor and Related Device Manufacturing (334413), Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Other Electronic Component Manufacturing (334419)

SIC

Semiconductors & Related Devices (3674), Electronic Components, Nec (3679)

akta.pro primary industry

High-Voltage, Power Discretes & Modules (IGBT/MOSFET/SiC/GaN) (HDAHAAAK)

akta.pro secondary industries

Power Management & Power ICs (HDAHAAAE), Power Semiconductor Foundries (BCD/Power IC Processes) (HDAHACAE), Wide-Bandgap Power Devices (SiC/GaN Discretes) (HDAHAHAG), Power Management & Power Conversion ICs (PMIC/DC‑DC/AC‑DC/Gate Drivers) (HDAHABAE), RF, Microwave & Wireless ICs (HDAHAAAF), Power Modules (IGBT/MOSFET/SiC/GaN Modules) (HDAHAHAH), Advanced SoCs & Application Processors (HDAHAAAB), Interface ICs (USB/HDMI/SerDes/Level Shifters) (HDAHAIAD), Analog & Mixed-Signal ICs (HDAHAAAD)

Keywords

• Power semiconductor devices
• Power MOSFET solutions
• Silicon carbide MOSFETs
• Gallium nitride transistors
• Intelligent power modules

Headquarters

HQ city

Sunnyvale

HQ country

United States

HQ region

North America

Offices18 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Semiconductor Component Sales: Primary revenue from unit sales of power semiconductors including discrete power MOSFETs, SiC/GaN wide bandgap devices, IGBTs, Intelligent Power Modules (IPM), TVS, HV Gate Drivers, Power ICs, and digital power products sold through direct sales and distribution channels globally. Reported $163.8M fiscal Q3 2026 revenue.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels5 records

Core offering

Alpha and Omega Semiconductor Limited (AOS) designs, develops, and globally supplies a broad range of power semiconductors, including Power MOSFETs, IGBTs, Intelligent Power Modules (IPMs), Power ICs, Silicon Carbide (SiC) MOSFETs, Gallium Nitride (GaN) transistors, High Voltage Gate Drivers, Motor Control MCUs, and Transient Voltage Suppressors (TVS). The company differentiates itself by integrating its discrete and IC semiconductor process technology, product design, and advanced packaging know-how to deliver high-performance power management solutions for AI servers, data centers, EVs, computing, industrial, and consumer applications.

Product overview

Alpha and Omega Semiconductor Limited (AOS) operates as a unified single-vendor portfolio of power semiconductors rather than a multi-product platform company. The offering is a broad but integrated product family designed, developed, and globally supplied under the AOS brand, integrating discrete and IC semiconductor process technology with advanced packaging. At the portfolio level it comprises eight product families: Gallium Nitride (GaN) Transistors, Silicon Carbide (SiC) MOSFETs, IGBTs (AlphaIGBT), Intelligent Power Modules (IPM3, IPM5, IPM7), MOSFETs (low/medium/high voltage and hot-swap classes), Power ICs (including EZBuck DC-DC buck regulators, active bridge drivers, multiphase controllers such as AOZ71049QI/AOZ71149QI/AOZ71146QI, DrMOS/Smart Power Stages such as AOZ52986QI and the SmartClamp™ Protected DrMOS Family including AOZ53228QI, eFuse, and Type-C protection switches), High Voltage Gate Drivers, Motor Control MCUs, and TVS devices. Together, these families combine to deliver total power solutions across applications: Automotive (including EV Powertrain), Cloud (Server, Telecom Infrastructure), Computing (Graphic Cards, Notebook), Consumer (Home Appliance), Industrial (Power Supply), and Motor Drive (Power Tool). Within the portfolio, individual flagship products serve specific use cases — for example, the AOLV66935 100V High SOA MOSFET powers 48V Hot Swap in AI servers, the AOZ32063MQV drives BLDC motors, and the SmartClamp™ DrMOS Family targets AI server and high-end GPU power management — drawing on the same integrated design, process, and packaging platform.

Differentiator

Problem solved

Functional benefit

Brands

• Jireh Semiconductor: In-house wafer fab and wholly owned subsidiary of Alpha and Omega Semiconductor, located in Hillsboro, Oregon.

Products and services

• Gallium Nitride (GaN) Transistors E-mode GaN power transistors that enable high-frequency operation, increase efficiency, and reduce system size in computing, consumer, and industrial applications. Available in voltage classes from 80V to 700V and in a broad variety of packages.
• Silicon Carbide (SiC) MOSFETs SiC MOSFET products designed as the leading solution for high-performance and high-efficiency requirements in 400V and 800V EV powertrain architectures, including traction inverter and onboard charger (OBC) applications. Includes 1200V SiC MOSFETs for automotive and industrial power applications.
• IGBTs (AlphaIGBT) Robust, high-performance Insulated Gate Bipolar Transistors including Trench Field IGBT products targeting power supply, motor drive, and home appliance applications across 600V and 650V voltage classes.
• Intelligent Power Modules (IPM3, IPM5, IPM7) Application-specific Intelligent Power Modules for motor inverter applications including consumer home appliances, industrial motor controls, and EVs. IPM3 (3-Phase ESD-IGBT-IPM), IPM5 (3-Phase and Full-Bridge ESD-IGBT IPM with NTC, Low EMI variants), and IPM7 (3-phase RC-IGBT IPM) deliver high energy-efficiency, low EMI, and elevated system ruggedness.
• MOSFETs Broad portfolio of power MOSFETs spanning low voltage (12V-30V), medium voltage (40V-400V), hot-swap (25V-150V), and high voltage (500V-1000V) classes, plus P-channel and complementary variants. Products feature aMOS High Voltage Super Junction (600V-700V), Mid and Low Voltage SGM/SGL FET, designed for optimized Qg FOM, switching efficiency, and Body Diode ruggedness.
• Power ICs Broad portfolio of power management ICs including EZBuck DC-DC Buck regulators, Active Bridge Drivers, multiphase controllers, DrMOS/Smart Power Stages (SPS), eFuse products, and Type-C protection switches. Powers CPU/GPU rails, server power, notebook platforms, AI servers, data centers, and high-end graphics cards.
• AOZ71049QI / AOZ71149QI / AOZ71146QI Multiphase Controllers New family of 4-rail digital multiphase controllers with A2TM technology, engineered for Intel IMVP9.3 Vcore power delivery. Configurable to up to 4+2+1+2 phase outputs with ultra-low quiescent current of 5.9mA at PS0. Designed for Intel Panther Lake and Wildcat Lake mobile processor architectures, offering 30-60 minutes additional battery life.
• AOZ52986QI Smart Power Stage (SPS) Compact 3x4 QFN Smart Power Stage with 2.7V to 22V supply range, 30V HS MOSFET, 45A continuous output (up to 80A peak), integrated current and temperature monitoring. Optimized for switching frequencies up to 1.5MHz; pairs with AOZ71049QI series multiphase controllers.
• SmartClamp Protected DrMOS Family (AOZ53228QI) Protected DrMOS family with industry-leading peak-to-peak current limiting for AI servers, data centers, and high-end graphics cards. Flagship AOZ53228QI provides cycle-by-cycle current monitoring with 10% peak current accuracy to prevent catastrophic failures during high-peak-current scenarios in AI workloads.
• AOLV66935 100V High SOA MOSFET 100V High Safe Operating Area MOSFET in LFPAK 8x8 package featuring AOS proprietary AlphaSGT technology for 48V Hot Swap architectures in AI servers. Provides very low on-resistance of 1.86 milliohms with copper clip technology for enhanced thermal management; package is 60% smaller than standard TO-263 packages.
• AOZ32063MQV 3-Phase Driver IC Compact 3-phase driver IC designed for high-efficiency BLDC (Brushless DC) motor applications in robotics, automotive electrification, industrial automation, and electric vehicle production.
• High Voltage Gate Drivers High voltage gate drivers for IGBT and MOSFET power switches in industrial and motor drive applications, including parts designed for power tool applications.
• Motor Control MCUs Motor Control MCUs for advanced motor control applications including industrial automation, consumer motor drives, and electric vehicles.
• TVS (Transient Voltage Suppressors) Transient Voltage Suppressors including High Power TVS (1.5KW and 5KW classes for hot swap and monitoring in servers) and general-purpose/high-speed interface ESD protection for USB Type-C, HDMI, Thunderbolt, LAN, USB, VBus, Audio and VGA interfaces in notebook applications.
• eFuse Products Advanced eFuse product family supplying power protection and supply sequencing for server and data center applications, including parts for hot swap and monitoring as well as supply sequencing and power saving.

Quantifiable outcome

• 30 to 60 minutes of additional mobile battery life vs competing solutions
• +7 more outcomes

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered flagship and minor.

• IntelflagshipStrategic or Co-development Partner · 18 May 2026Strategic alignment with Intel's processor architectures through product engineering for Intel IMVP9.3 Vcore power delivery. AOS launched AOZ71049QI/AOZ71149QI/AOZ71146QI digital multiphase controllers and AOZ52986QI Smart Power Stage specifically engineered for Intel Panther Lake and Wildcat Lake mobile processor platforms. The products support multiple Intel platforms including AMD Genoa, AMD Turin, and Intel SVID platforms for server applications.
• Kaynes Semicon (Kaynes Technology India Limited)flagshipImplementation/ SI/ Consulting Partner · 15 October 2025Multi-year OSAT (outsourced semiconductor assembly and test) partnership with Kaynes Semicon's facility in Sanand, Gujarat, India. Kaynes shipped India's first commercially packaged multi-chip module (MCM/IPM5) to AOS's Sunnyvale headquarters around October 15-16, 2025. Under the five-year agreement, Kaynes will deliver 10 million Intelligent Power Modules (IPMs) annually to AOS. The IPM5 integrates 17 dies (six IGBTs, two controller ICs, six FRDs, three diodes) for EVs, industrial automation, consumer electronics, and clean energy systems. Facility involves ₹3,307 crore investment under India's Semiconductor Mission.
• Bing Xue (EVP) - Insider Trading PlanminorOthers · 14 August 2025Not a commercial partnership; included here for context on insider transactions. EVP Bing Xue operates a pre-arranged Rule 10b5-1 trading plan adopted August 14, 2025.

Scale indicators11 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• STMicroelectronics: STMicroelectronics is a major broadline semiconductor incumbent with a leading SiC MOSFET portfolio (for Tesla/EV) and power management ICs that compete with AOS across automotive, industrial and cloud applications.
• Infineon Technologies: Infineon is the global power semiconductor leader with broad MOSFET, IGBT, SiC and IPM offerings directly competing with AOS's full portfolio across automotive, industrial, and AI server markets.
• Microchip Technology: Microchip offers power management ICs, motor control MCUs and discrete MOSFETs that overlap AOS's Power ICs and Motor Control MCU product lines in industrial, computing and consumer applications.
• Texas Instruments: Texas Instruments is the dominant analog/power management incumbent with broad multiphase controllers, DrMOS, and discrete portfolios that overlap AOS offerings across nearly all end-markets.

Direct peers

• ON Semiconductor: ON Semiconductor is a leading power discrete and SiC competitor offering MOSFETs, IGBTs, gate drivers, and intelligent power modules directly overlapping AOS's portfolio across automotive, cloud, and industrial end-markets.
• Vishay Intertechnology: Vishay is a major discrete power MOSFET and IGBT supplier with a portfolio that overlaps AOS's medium-voltage MOSFETs, IGBTs, and protection devices in industrial and automotive applications.
• Diodes Incorporated: Diodes designs discrete, analog, and mixed-signal semiconductors including MOSFETs and power management ICs that compete head-to-head with AOS in PC, consumer, industrial and automotive power applications.
• Monolithic Power Systems (MPS): MPS designs highly integrated power management ICs, DrMOS/power stages, and digital multiphase controllers that directly compete with AOS's AOZ71049QI and AOZ52986QI families in AI servers, notebooks and computing.
• Power Integrations: Power Integrations offers high-voltage AC/DC and gate-driver ICs that overlap AOS's High Voltage Gate Drivers and AlphaZBL active bridge technology in industrial, server and telecom power supply applications.

Emerging players

• Navitas Semiconductor: Navitas is a pure-play GaN power semiconductor company focused on high-frequency power conversion, directly competing with AOS's GaN transistor portfolio in consumer, data center and EV applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/aosmd
• Xx.com/AlphaOmega_Semi
• Facebookfacebook.com/170608549672880

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries4 records

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Alpha and Omega Semiconductor