| Categories | Sapphire Substrate |
|---|---|
| Brand Name: | ZMSH |
| Place of Origin: | China |
| MOQ: | 1 |
| Payment Terms: | T/T |
| Material: | Single-crystal Sapphire (C-plane, A-plane optional) |
| Thickness: | 100 μm – 1000 μm |
| Via Diameter: | ≥ 20 μm |
| Aspect Ratio: | ≥ 10:1 |
| Surface Roughness: | Ra < 1 nm (polishing available) |
| Package Compatibility: | Fan-out, Flip-chip, MEMS packaging, etc. |
Product Overview
TGV Sapphire is a transparent conductive glass material based on sapphire (Al₂O₃) substrates, coated with transparent conductive oxide (TCO) films (e.g., ITO, AZO) via magnetron sputtering. It combines sapphire’s ultra-high hardness, high-temperature resistance, and TCO films’ conductivity and transparency, making it ideal for high-performance electronic devices in extreme environments.
Principle
Using laser drilling or dry etching, vertical vias with high aspect ratios are created in the sapphire substrate. These vias are metallized to enable vertical electrical signal transmission, while maintaining the sapphire’s optical clarity and mechanical integrity.
Sapphire Substrate: Sapphire (Al₂O₃) is one of the hardest oxide materials in nature, offering exceptional chemical stability, high thermal conductivity (~40 W/m·K), and a wide optical bandgap (~9.9 eV), enabling resistance to high temperatures and harsh chemical environments.
Transparent Conductive Layer: A nano-scale TCO film (e.g., ITO) is deposited on the sapphire
surface via physical vapor deposition (PVD), balancing high
transmittance (>90%) and low sheet resistance (≤10 Ω/sq).
Specification
| Item | Typical Values (Customizable) |
|---|---|
| Material | Single-crystal Sapphire (C-plane, A-plane optional) |
| Thickness | 100 μm – 1000 μm |
| Via Diameter | ≥ 20 μm |
| Aspect Ratio | ≥ 10:1 |
| Via Density | > 1,000,000 vias/cm² (optional) |
| Metallization | Ti/Cu, Ni/Au, Pt, etc. |
| Surface Roughness | Ra < 1 nm (polishing available) |
| Package Compatibility | Fan-out, Flip-chip, MEMS packaging, etc. |
Applications
Consumer Electronics: Scratch-resistant AR/VR displays, flexible OLED backplanes.
Optoelectronics: Laser window components, UV sensors,
high-power LED substrates.
Automotive: Automotive displays, LiDAR optical components.
Aerospace: Radiation-resistant satellite parts and spacecraft
windows.
Q&A
Q1: What’s the difference between TGV Sapphire and ordinary
conductive glass?
A1: TGV Sapphire is 10x harder than regular glass, withstands
temperatures up to 600℃, and operates in harsh chemical
environments.
Q2: Can it be customized (e.g., shape cutting, thickness
adjustment)?
A2: Yes, customizable dimensions, thickness (0.5mm~5mm), and
conductive layer patterns are available.
Q3: Does extreme temperature affect conductivity?
A3: Sapphire’s CTE matches silicon chips, ensuring stable
conductivity under high temperatures.
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