Why Chromium? (Engineering Advantages)
Chromium is the industry standard for high-precision optical blocking and patterning due to its unique physical properties:
- High Optical Density (OD): Chrome coatings effectively block light transmission. We can precisely control the film thickness to achieve specific Optical Densities (e.g., OD 3.0, 4.0, or >5.0), ensuring zero light leakage in the coated areas.
- Exceptional Adhesion: Chromium bonds naturally and chemically to glass (silicon dioxide). It will not peel, flake, or fail standard tape adhesion tests.
- Extreme Durability: Chrome is a notoriously hard metal. The resulting coating is highly scratch-resistant and can withstand rigorous handling, ultrasonic cleaning, and harsh environments.
- Superior Edge Definition: When etched, chrome maintains exceptionally sharp, clean edges without the jaggedness seen in other metal coatings, making it ideal for micro-patterning.
Our Coating & Patterning Capabilities
We don’t just coat the glass; we engineer it to your exact specifications. Our capabilities include:
- Pinhole-Free Deposition: Utilizing advanced Magnetron Sputtering, we deposit dense, uniform, and strictly pinhole-free chrome layers, critical for laser and imaging applications.
- Low-Reflective (AR) Chrome: Standard chrome is highly reflective. For applications like lithography where internal reflections cause "ghosting," we offer Anti-Reflective Chrome (Cr + CrxOy layers) to provide high OD blocking with ultra-low surface reflection.
- Precision Photolithography & Wet/Dry Etching: We can etch complex geometries, grids, and apertures directly into the chrome layer. Our process achieves micron and sub-micron feature sizes with extremely tight tolerances.
- Substrate Versatility: We apply chrome coatings to a variety of polished substrates, including Soda Lime, Borosilicate (B270/Borofloat), Quartz, and Fused Silica, depending on your UV/VIS/IR transmission needs.
铬玻璃的常见应用
Our custom chrome-plated and patterned substrates are integrated into high-tech systems worldwide:
- Photomasks & Reticles: Used in semiconductor lithography, PCB manufacturing, and MEMS fabrication.
- Machine Vision Calibration Targets: Precision checkerboards, dot grids, and resolution test charts for calibrating cameras and optical sensors.
- Optical Slits & Pinholes: Essential components for spectrometers, spectrophotometers, and spatial filtering in laser optics.
- Apertures & Encoders: Custom-shaped light-blocking windows and high-precision rotary/linear encoder disks.
맞춤 제작 견적 요청하기
From unpatterned chrome blanks to complex, finely etched optical targets, we can support your project from prototype to volume production.
To provide an accurate quote, please share:
- 기판 재질: (e.g., Soda Lime for visible light, Fused Silica for UV applications).
- Optical Density (OD): Or required chrome thickness (e.g., OD > 3.0).
- Coating Type: Standard reflective chrome or Low-Reflection (AR) chrome?
- Patterning Needs: If etching is required, please attach your CAD/Gerber file or describe the minimum feature size (e.g., 5μm slits).
