Aehr Test Systems
At a glance
Employees100-499
In business sinceNot reported
HeadquartersFremont, CA
US patents88
SAM.gov UEIR4MGV15K44V3
CAGE code0X3Y7
Incorporated inCA
LEI529900A4GWWZFRU2RE97
Brands
This company sells these brands.
- semiconductor test
- packaged parts
- FOX-CP
- FOX-XP
- FOX-NP
- modules
- artificial intelligence
- automotive
- silicon photonics
- silicon carbide
Named on the company’s own website, read JUL 29, 2026
Supplier designations
Community Development Corporation Owned FirmFor Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
88 US patents granted 1992–2025, 23 of them in the five years to SEP 2025, including 3 design patents.
Measurement 76Semiconductors 6Audio-visual technology 1Computer technology 1Mechanical elements 1
- System for testing an integrated circuit of a device and its method of useUS 12,326,472 · granted JUN 10, 2025
- Controlling alignment during a thermal cycleUS 12,298,328 · granted MAY 13, 2025
- Method and system for thermal control of devices in an electronics testerUS 12,292,484 · granted MAY 6, 2025
- Electronics testerUS 12,282,062 · granted APR 22, 2025
- Method and system for thermal control of devices in electronics testerUS 12,265,136 · granted APR 1, 2025
Newest 5 shown · Granted to Aehr Test Systems · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Aehr Test Systems | Fremont | CA | 100–499 | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.