Skip to main content

LGT Products (Langatate)

CRYSTALINNOV manufactures langatate (LGT) crystals, a unique material that combines the symmetry and modeling advantages of quartz with the ability to operate at very high temperatures (>600 °C).

With excellent chemical stability, a high quality factor, and no ferroelectricity, LGT is ideally suited for advanced piezoelectric applications in resonators, sensors, and transducers.

Langatate and quartz have similar advantages:

Langatate and quartz have similar advantages:
• No ferroelectricity.
• Same point symmetry group as quartz, hence an easy transposition of the well-known models of the quartz.
• Excellent chemical and mechanical stability.
• Excellent quality factor

Why choose Crystal-Innov?
By combining growth, machining, and orientation expertise, CRYSTALINNOV provides both wafers and rings in LGT with unmatched dimensional accuracy, opening new horizons for high-temperature and high-performance piezoelectric devices.
• Exceptional thermal and chemical stability
• Excellent mechanical robustness
• High quality factor (Q) for resonators
• Easy transposition from quartz models → faster design cycles

• Dimensions: Up to 2” (50.8 mm) diameter
• Orientations: X, Y, Z, single-rotated or double-rotated cuts and other orientations on request (single-rotated or double-rotated)
• High crystallographic quality for frequency control devices

• Dimensional accuracy: ±0.03 mm
• With or without metallic coating
• With or without flat, according to customer specifications


Applications

BAW and SAW resonators

for telecommunications and sensors

Oscillators

and frequency control devices

Direct piezoelectric effect sensors

for harsh environments

High-temperature transducers

(>600 °C)