Wafer Substrates
Vital Materials supplies high-quality epitaxial substrates engineered for reliable performance across optoelectronic, RF, and power-device applications. Using precision wire-sawing, grinding, CMP polishing, and advanced cleaning technologies, we deliver EPI-ready wafers that meet the strict requirements of modern semiconductor manufacturing.
Gallium Arsenide (GaAs) Substrates
Gallium arsenide (GaAs) is a high-performance III–V semiconductor known for its direct bandgap, high electron mobility, and excellent high-frequency characteristics.
Available Diameters
- 2″, 3″, 4″, 6″, and 8″
Growth Method
- VGF
Types Offered
- Semi-insulating GaAs (undoped)
- Semiconducting GaAs (Si- or Zn-doped)
Applications
- LED and display technologies, including Mini- and Micro-LEDs
- RF devices used in wireless communication systems (4G/5G base stations, satellite links, Wi-Fi modules)
- High-efficiency solar cells used in aerospace, drones, and specialty vehicles
Indium Phosphide (InP) Substrates
Indium phosphide combines high electron mobility with a direct bandgap, supporting high-speed optoelectronic and RF applications.
Available Diameters
- 2, 3, 4, and 6 inches
Growth Method
- VGF
Types Offered
- Semi-insulating InP, Fe-doped
- N-type InP, S- or Sn-doped
- Undoped n-type InP
- P-type InP, Zn-doped
Applications
- Optical communications and AI data-center interconnects
- DFB and EML lasers, PIN photodiodes, and APD detectors
- RF, microwave, satellite, and wireless devices
Germanium (Ge) Substrates
Germanium substrates provide excellent carrier mobility, making them essential for high-performance semiconductor and photovoltaic applications.
Available Diameters
- 2″, 3″, 4″, 6″, and 8″
Dislocation Options
- Low-dislocation and zero-dislocation
Resistivity Range
- 0.005–50 Ω·cm
Applications
- CPV (concentrated photovoltaic) systems
- Space-grade solar panels with extended operational life
- Ultra-high-brightness LEDs and specialty semiconductor devices
Sapphire (Al₂O₃) Substrates
Vital Materials produces high-quality sapphire substrates using advanced manufacturing technology originally derived from Honeywell substrate processing. We supply large-diameter sapphire wafers with excellent surface flatness and uniformity.
Available Diameters
- 2″, 4″, 6″, and 8″
Applications
- LED manufacturing
- RFICs and power electronics
- Optical and sensing applications requiring high thermal conductivity and durability