Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

GaN-FS-C-SI-C100 Gallium Nitride Substrate

GaN-FS-C-SI-C100 is a high-purity gallium nitride substrate from the GaN-FS series by Sumitomo Electric, featuring carbon-doped semi-insulating properties and 100mm diameter. Engineered for RF power amplifiers and high-frequency devices, it delivers superior thermal conductivity, low defect density, and excellent crystal uniformity—enabling next-generation 5G, radar, and power electronics applications with enhanced reliability and performance.
  • gan fs c si c100 gallium nitride substrate_0523cea7
  • gan fs c si c100 gallium nitride substrate_0523cea7

Features Of GaN-FS-C-SI-C100 Gallium Nitride Substrate

  1. Freestanding (FS) gallium nitride substrate with low dislocation density (< 5 × 10⁶ cm⁻²) for high-power and high-frequency device performance.

  2. Carbon-doped (C-doped) n-type conductivity control enabling stable, reproducible epitaxial growth of high-electron-mobility transistors (HEMTs).

  3. Polished double-side Si-face orientation (C-plane) with atomic-level surface roughness (Ra < 0.2 nm) for optimal heteroepitaxy.

  4. 100 mm (4-inch) diameter wafer format compatible with standard III-nitride MOCVD and MBE toolsets.

  5. Thermally robust structure with minimal bow (< 20 µm) and warp (< 15 µm), ensuring high-yield lithography and processing.

Typical Applications Of GaN-FS-C-SI-C100 Gallium Nitride Substrate

  1. High-power RF amplifiers for 5G base stations and satellite communication systems.

  2. High-efficiency power converters in EV onboard chargers and industrial DC-DC modules.

  3. UV-C optoelectronic devices including deep-ultraviolet LEDs and laser diodes.

  4. High-temperature electronics for aerospace and downhole oil & gas sensing applications.

  5. Monolithic microwave integrated circuits (MMICs) requiring low parasitic capacitance and high thermal conductivity.

Specifications Of GaN-FS-C-SI-C100 Gallium Nitride Substrate



Chemical TypeGallium Nitride (GaN), carbon-doped
Product FormFreestanding circular wafer (100 mm / 4-inch diameter)
Crystal OrientationC-plane (0001), Si-face polished both sides
Thickness450 ± 25 µm
Surface FinishChemomechanically polished, epi-ready (Ra < 0.2 nm)
Primary ApplicationsRF power devices, power electronics, UV optoelectronics
Key FeaturesLow threading dislocation density, high thermal conductivity (~230 W/m·K), lattice-matched to GaN epilayers
Regulatory ComplianceRoHS 2015/863/EU compliant; REACH SVHC-free; no conflict minerals used


Compatible Systems Of GaN-FS-C-SI-C100 Gallium Nitride Substrate

Common Compatible SystemsSuitability
Aixtron Crius II MOCVD SystemHighly Recommended – Optimized temperature ramp profiles and NH₃ flow compatibility for GaN nucleation
Veeco Gen10 MBE PlatformRecommended – Verified Ga/N flux stability and in-situ reflection high-energy electron diffraction (RHEED) calibration
Applied Materials Centura® ClustertoolSuitable – Compatible with standard 100 mm wafer handling and vacuum load-lock protocols
ASML PAS 5500/300 StepperRecommended – Minimal thermal drift during exposure; supports sub-200 nm lithography alignment

GaN-FS-C-SI-C100 Gallium Nitride Substrate – Frequently Asked Questions (FAQ)

Q1: Does GaN-FS-C-SI-C100 have a CAS Registry Number?

A: Gallium nitride (GaN) is an inorganic crystalline compound not assigned a unique CAS number; however, the bulk material complies with IUPAC nomenclature and is referenced under CAS 25617-97-4 (gallium nitride, unspecified form). This substrate contains no organic ligands or solvents.


Q2: What is the recommended maximum operating temperature for device fabrication using this substrate?

A: Continuous thermal exposure up to 1050 °C is supported during MOCVD growth; short-term spikes ≤ 1100 °C are permissible with controlled ramp rates (< 5 °C/s) to prevent cracking or interfacial decomposition.


Q3: How does GaN-FS-C-SI-C100 compare to sapphire or SiC substrates in terms of lattice mismatch and thermal management?

A: Compared to sapphire (13% lattice mismatch, 35 W/m·K thermal conductivity) and SiC (3.5% mismatch, 490 W/m·K), GaN-FS-C-SI-C100 offers zero lattice mismatch and ~230 W/m·K conductivity—enabling higher power density and lower junction temperatures without buffer layers.


Q4: Are there any known extractables or leachables from this substrate under standard etch or cleaning conditions (e.g., HCl, KOH, or SC1)?

A: No detectable Ga or N ion leaching occurs under standard semiconductor cleaning protocols (SC1: NH₄OH/H₂O₂/H₂O; SC2: HCl/H₂O₂/H₂O; or dilute HCl at 25–60 °C). Surface carbon dopant remains substitutional and non-mobile below 800 °C.


Q5: Is this substrate certified for use in medical-grade or aviation-qualified electronic assemblies?

A: The substrate itself is not a finished component and does not carry ISO 13485 or DO-160 certification; however, it meets raw material traceability and particulate cleanliness requirements (SEMI F57-0219) for inclusion in AS9100- and ISO 13485-certified manufacturing flows.



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