Company Overview
About Aehr Test Systems
Aehr Test Systems is a semiconductor test equipment company specializing in wafer-level burn-in and test systems, with a dominant position in testing silicon carbide (SiC) power semiconductors. Silicon carbide devices are essential components in electric vehicle inverters, solar inverters, and industrial power systems — they handle high voltages and temperatures where traditional silicon fails. Before shipping, SiC semiconductors must undergo burn-in testing at elevated voltage and temperature to screen out early-life failures, and Aehr's FOX-XP wafer-level system performs this screening more efficiently than component-level testing.
Business Model & Competitive Advantage
Aehr Test Systems reported approximately $80 million in revenue in FY2024, having grown dramatically as EV adoption drove demand for SiC testing capacity. The company's wafer-level approach tests entire wafers of devices simultaneously rather than individual packaged parts, dramatically reducing test cost per device. Aehr's major customers include leading SiC suppliers Infineon, Wolfspeed, onsemi, and others who are investing billions in SiC manufacturing capacity to meet automotive demand.
Competitive Landscape 2025–2026
The company's technology creates a virtuous cycle with its dominant SiC market position: as SiC manufacturers expand production, they need more Aehr systems, generating both capital equipment revenue and recurring spare parts and service revenue. Aehr also serves compound semiconductor testing for photonic devices (data center transceivers), expanding beyond its core SiC franchise.
Open Positions
Reddit Discussions
Key Differentiators
Emerging Innovator
Aehr Test Systems is an emerging player bringing innovative solutions to the Semiconductor Equipment market.
Top 10 Ranked
Ranked #7 in the Semiconductor Equipment category, among the industry's best.
Frequently Asked Questions
AI Visibility Rankings
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