What is Glass Etching Processing?
Glass etching processing is a precision microfabrication technique that removes glass material to create patterns, channels, and structures on glass substrates. This process enables manufacturing of high-precision components for semiconductor packaging, microfluidics, MEMS devices, and optical applications where traditional machining cannot achieve the required accuracy.
Our etched glass substrate solutions deliver dimensional tolerances as tight as ±50μm with surface roughness under 0.02μm Ra, meeting demanding specifications across industries from LED packaging to biomedical devices.
Custom Glass Etching Processing
Material Compatibility
Borosilicate glass
fused silica
soda-lime glass
specialty glasses including Gorilla Glass, D263, and AF32.
Microchannel Glass Etching Expertise
Channels from 5μm to 5000μm width with depths from 1μm to 500μm. Aspect ratios up to 20:1 with rectangular, trapezoidal, or rounded cross-sectional profiles. Integrated mixing chambers, flow restrictions, and sensor pockets available.
Precision Glass Etching Capabilities
| Item | Specification | Remarks |
|---|---|---|
| Alignment Accuracy | ||
| Alignment mark size | ±80 μm | Circular drilled mark |
| Alignment mark tolerance | ±50 μm | Including diagonal position |
| Alignment mark to edge | ±100 μm | |
| Cell / Cavity Dimensions | ||
| Cell position tolerance | ±170 μm | |
| Cell size tolerance | ±170 μm | |
| Cavity depth tolerance | ±50 μm | |
| Surface Quality | ||
| Surface roughness | < 0.02 μm Ra | |
| Glass Substrate Specifications | ||
| Max glass panel size | 920 × 730 mm | |
| Thickness range | 0.035 – 1.1 mm | Standard: 0.5 / 0.55 / 0.7 / 1.1 mm |
Industry Applications
Precision cavity formation for LED dies with anti-reflection surface texturing and thermal expansion matching. Applications include automotive headlights, display backlights, and high-power industrial lighting systems.
Microfluidic Glass Chip Etching
Complex channel networks from 1μm to 1000μm width with aspect ratios up to 10:1. Serves biomedical diagnostics, drug discovery platforms, and point-of-care testing devices with 3D channel architectures and integrated port features.
Optical Glass Etching
Diffraction gratings, waveguide formation, micro-lens arrays, and integrated photonic circuits with low optical loss surfaces and precise refractive index control for AR/VR and telecommunications applications.
MEMS Glass Substrate Etching
High-precision components for pressure sensors, accelerometers, optical MEMS switches, and biomedical implantable devices requiring tight dimensional tolerances and long-term stability.
Contact Us
Ready to discuss your precision glass etching requirements?
Contact our engineering team for technical consultation, rapid quotation within 24 hours, and sample processing evaluation.