Veeco Savannah G2 Atomic Layer Deposition System
| Brand | Veeco |
|---|---|
| Origin | USA |
| Model | Savannah G2 ALD |
| Substrate Size | S100: up to 100 mm |
| S200 | up to 200 mm |
| S300 | up to 300 mm |
| Process Temperature | S100: RT–400 °C |
| S200/S300 | RT–350 °C |
| Precursor Ports | configurable up to 6 |
| Dimensions (W × H × D) | S100/S200: 585 × 560 × 980 mm |
| S300 | 686 × 560 × 980 mm |
| Uniformity (Al₂O₃) | <1% (1σ) |
| Cycle Time | <2 s per cycle (Al₂O₃ at 200 °C) |
| Power Supply | 115/220 VAC, 1900 W (S100/S200), 2000 W (S300) |
| Precursor Vessels | 50 mL heated stainless-steel ampoules (heatable to 200 °C) |
| Carrier/Exhaust Gas | N₂, 100 SCCM |
| Valve Response Time | 10 ms |
| Compatible Precursor States | solid, liquid, or gaseous |
| In-situ Options | QCM, spectroscopic ellipsometry, RGA, LVPD, ozone generator, SAMs module, plasma enhancement, glovebox integration |
Overview
The Veeco Savannah G2 Atomic Layer Deposition (ALD) System is a fully automated, benchtop-scale thin-film growth platform engineered for high-precision, reproducible atomic-layer-controlled synthesis of functional nanomaterials. Based on the sequential, self-limiting surface reactions characteristic of thermal ALD—with optional plasma-enhanced (PE-ALD) capability—the Savannah G2 enables monolayer-by-monolayer film growth with sub-angstrom thickness control and exceptional conformality over high-aspect-ratio structures. Developed from Veeco’s legacy in ALD instrumentation—originating with Cambridge Nanotech (founded at Harvard University in 2003) and refined through over 15 years of field deployment—the system integrates robust vacuum architecture, ultra-fast pulsing valves, and thermally isolated precursor delivery to ensure stoichiometric fidelity across diverse chemistries. With more than 500 systems installed globally, the Savannah G2 serves as a critical tool in semiconductor R&D, advanced packaging, MEMS/NEMS fabrication, solid-state battery development, and next-generation optoelectronic device prototyping.
Key Features
- Modular substrate handling: Three standard configurations (S100, S200, S300) support wafers up to 300 mm diameter, with independent thermal zoning for uniform heating and cooling profiles.
- Thermally stabilized precursor delivery: Six independently heated (up to 200 °C), 50 mL stainless-steel source vessels accommodate solid, liquid, and gaseous precursors without cross-contamination.
- High-speed pneumatic ALD valves: 10 ms actuation time ensures precise temporal control of precursor and purge pulses—critical for sub-second cycle times and minimized intermixing.
- Dual operational modes: Continuous mode for high-throughput deposition; exposure mode optimized for ultra-high aspect ratio (HAR) trench and pore conformality.
- Integrated process monitoring: Optional in-situ diagnostics—including quartz crystal microbalance (QCM), real-time spectroscopic ellipsometry, residual gas analysis (RGA), and laser-induced vapor phase detection (LVPD)—enable closed-loop process validation and kinetic studies.
- Plasma enhancement compatibility: Integrated RF or microwave plasma sources (optional) extend process window to low-temperature, radical-driven chemistries for temperature-sensitive substrates.
Sample Compatibility & Compliance
The Savannah G2 supports a broad spectrum of substrate materials—including Si, SiO₂, SiNₓ, GaN, sapphire, flexible polymers, and battery electrode foils—as well as complex 3D nanostructures such as nanowires, porous anodized alumina (AAO), and high-aspect-ratio trenches. Its chamber design conforms to ISO Class 5 cleanroom-compatible mechanical standards and meets UL/CE safety requirements for laboratory use. The system supports GLP-compliant operation when paired with Veeco’s ALDControl™ software (v5.x), which includes full audit trail functionality, user access levels, electronic signatures, and data integrity features aligned with FDA 21 CFR Part 11 and EU Annex 11 expectations. All vacuum and gas-handling components are constructed from electropolished 316L stainless steel and VCR®-rated fittings to minimize outgassing and ensure long-term repeatability.
Software & Data Management
ALDControl™ software provides intuitive, script-based recipe programming with real-time parameter visualization, event logging, and automated calibration routines. Each deposition run generates timestamped, metadata-rich files (.csv and .xml) containing pressure transients, temperature ramps, valve timing sequences, and (if enabled) in-situ sensor outputs. Data export is compatible with industry-standard analytics platforms including MATLAB, Python (via Pandas/NumPy), and JMP. Remote monitoring and troubleshooting are supported via secure HTTPS interface with TLS 1.2 encryption. Software updates follow a controlled release cycle validated per IEC 62304 for medical-device-grade software lifecycle management—ensuring traceability and regulatory readiness for qualified environments.
Applications
- Semiconductor gate dielectrics (e.g., Al₂O₃, HfO₂, La₂O₃) and high-k/metal gate stacks
- Solid electrolyte coatings for Li-ion and solid-state batteries (e.g., Li₇La₃Zr₂O₁₂, LiFePO₄, Ta₂O₅)
- Conformal passivation layers for MEMS sensors and photonic devices
- Functional oxide and sulfide films for resistive switching memory (ReRAM), ferroelectrics, and photocatalysis
- Self-assembled monolayer (SAM)-initiated ALD for hybrid organic–inorganic interfaces
- Atomic-scale encapsulation of nanoparticles and 2D materials (e.g., graphene, MoS₂)
FAQ
What precursor chemistries are validated on the Savannah G2?
The system has demonstrated reliable performance with over 30 precursor combinations—including metal halides, alkylamides, β-diketonates, and organometallics—for oxides (Al₂O₃, TiO₂, ZnO), nitrides (TiN, TaN), sulfides (ZnS, Cu₂S), and fluorides (AlF₃). Full compatibility matrices are available under NDA upon request.
Can the system be integrated into a nitrogen-filled glovebox environment?
Yes—Savannah G2 offers a dedicated glovebox-integrated configuration with feedthroughs for power, gas lines, and Ethernet, plus differential pumping to maintain <1 ppm O₂/H₂O in the load-lock chamber.
Is remote service and software update support available internationally?
Veeco provides global remote diagnostics and firmware updates via secure cloud gateway, with SLA-backed response times for Tier-2 and Tier-3 technical escalation.
Does the system meet SEMI S2/S8 safety standards?
While not certified as a full SEMI S2/S8 production tool, the Savannah G2 complies with all applicable electrical, mechanical, and gas-safety clauses referenced in SEMI F27 (ALD-specific guidelines) and is routinely qualified by leading foundries for lab-to-fab technology transfer pathways.
What level of training and documentation is provided with installation?
Veeco delivers on-site commissioning, operator certification (8 hours), and engineering-level training (16 hours), plus comprehensive documentation: hardware manuals, ALD chemistry guides, preventive maintenance schedules, and SOP templates compliant with ISO/IEC 17025 internal audit requirements.
