A small company that builds for the world's hardest measurements.
Signatone is family‑owned, factory‑direct, and engineered in California. We build analytical probe stations for the semiconductor labs that can't afford to be wrong — research universities, national labs, and the wide‑bandgap power device teams electrifying transportation.
What we make
Analytical (not production) probe stations from DC to 1.1 THz, ±1 fA to 10 kV / 600 A, and −65 °C to +400 °C. Plus the probes, positioners, and thermal chucks that make those stations measure correctly.
How we work
Factory‑direct, no resellers between you and the engineer who designed your station. Every system is built to order, configurable, and upgradeable — the same chassis serves you for decades as the work evolves.
Visit Signatone.
If you're nearby, we'd love to have you see the factory. Bring your wafers — we'll measure them on the bench you'll be buying.