Description
We offer precision laser drilling services for sapphire glass, specializing in micro‑hole fabrication for semiconductor wafers, optical components, and high‑reliability devices. Sapphire (single‑crystal Al₂O₃) combines extreme hardness (Mohs 9), high thermal stability, and broad optical transmission, making it ideal for demanding applications.
Using ultrashort‑pulse (femtosecond and picosecond) laser systems, we produce micro‑holes with diameters from 10 µm to 500 µm, achieving aspect ratios exceeding 20:1. Our non‑contact process eliminates mechanical stress, chipping, and heat‑affected zones, delivering clean, taper‑controlled holes with sub‑micron positional accuracy.
For semiconductor applications, we drill precision alignment marks, via holes, and fluidic channels in sapphire wafers used in LED substrates, RF filters, and MEMS packaging. For optical components, our micro‑holes enable fiber alignment, gas flow sensing, and mounting features in sapphire windows, lenses, and prisms – without degrading surface finish or transparency.
All drilling is performed in a Class 1000 cleanroom, with on‑axis vision inspection for quality assurance. We support prototype to high‑volume production, with tight tolerances down to ±0.002 mm. Contact our engineering team to discuss your micro‑hole drilling requirements in sapphire glass.
The main characteristics of sapphire glass
The main characteristics of sapphire include high hardness, high scratch resistance, high transparency, high temperature resistance, etc., so it is widely used in many high-end applications.
- Scratch resistance: sapphire glass is made of artificial sapphire crystal, with extremely high hardness, can resist scratches and wear in daily useto maintain the clarity and gloss of the glass surface.
- Transparency and optical performance: sapphire glass crystal has a high degree of transparencyand can transmit more light, so that it has a wide range of applications in the field of observation and display. Transmittance band: 185 ~ 5000nm
- High temperature resistance: the melting point of sapphire glass is 2045°C, and the application temperature is generally below 2000°C.
- Pressure resistance: As a kind of high-strength glass, the compressive strength of sapphire glass at room temperature can reach 2.1GPa, so it is used as a viewing window in deep sea diving.
