Picosun P-300B Atomic Layer Deposition System

Overview

The Picosun P-300B Atomic Layer Deposition (ALD) System is a production-grade, batch-mode thin-film deposition platform engineered for high-volume manufacturing of conformal, pinhole-free nanoscale coatings on complex 3D geometries and planar substrates. Operating on the self-limiting surface reaction principle—where sequential, saturated pulses of gaseous precursors react with functionalized substrate surfaces—the P-300B delivers atomic-level thickness control (<0.1 Å per cycle), exceptional step coverage (>95% in aspect ratios >50:1), and outstanding film stoichiometry reproducibility. Its thermal-wall reactor architecture isolates heating elements from process gases, minimizing thermal gradients and enabling precise, uniform temperature control across the entire process zone. This design directly supports stringent requirements for MEMS, micro-optics, medical implants, and precision mechanical components where film integrity, interface quality, and long-term reliability are non-negotiable.

Key Features

• Batch processing capability for up to 25 × 8-inch wafers or mixed 3D parts (e.g., watch components, surgical tools, optical lenses, stents) in a single run
• Patented thermal-wall reactor with independent heater zoning ensures <±1.5% thickness uniformity across full 200 mm substrates and complex topographies
• Eight fully isolated precursor delivery lines with heated valves, mass flow controllers, and dedicated purge paths—enabling rapid process reconfiguration and multi-material ALD (e.g., Al₂O₃, TiO₂, HfO₂, ZnO, SiO₂, TaN)
• Picoflow™ diffusion-enhancement technology integrated into chamber geometry improves precursor transport into high-aspect-ratio features without requiring plasma or elevated pressure
• Modular, tooling-friendly design with front-access service panels and quick-release gas line couplings—reducing mean time to repair (MTTR) to under 30 minutes for routine maintenance
• Integrated real-time monitoring: substrate temperature profiling (via multiple thermocouples), chamber pressure feedback (capacitance manometer), and precursor pulse validation (FTIR or QCM optional)

Sample Compatibility & Compliance

The P-300B accommodates diverse sample formats: standard silicon, glass, or sapphire wafers (up to 200 mm); free-standing MEMS devices; curved optical substrates; porous metallic scaffolds; and sterilizable medical implants (e.g., titanium hip stems, nitinol stents). All wetted materials comply with SEMI F57 and ISO 14644-1 Class 5 cleanroom compatibility standards. The system meets CE marking requirements and supports integration into ISO 13485-certified medical device manufacturing environments. Optional documentation packages include IQ/OQ protocols aligned with FDA 21 CFR Part 820 and EU MDR Annex II requirements. Process logs retain full audit trails—including operator ID, timestamped parameter sets, alarm history, and recipe versioning—for GLP/GMP traceability.

Software & Data Management

Controlled via Picosun’s proprietary ALD Studio™ software suite (Windows-based, touchscreen-optimized), the P-300B provides deterministic recipe execution with sub-second timing resolution. The software includes built-in statistical process control (SPC) dashboards, automated yield reporting per lot, and configurable email/SNMP alerts for critical events. All process data—including temperature ramps, pulse durations, purge counts, and chamber pressure transients—are logged in HDF5 format with SHA-256 checksums for integrity verification. Export interfaces support CSV, XML, and OPC UA for MES/ERP integration (e.g., Siemens Opcenter, Rockwell FactoryTalk). Audit trail functionality complies with FDA 21 CFR Part 11 requirements when paired with network-authenticated user accounts and electronic signature modules.

Applications

• MEMS fabrication: hermetic encapsulation of pressure sensors, gyroscopes, and inkjet printheads using Al₂O₃ or AlN barrier layers
• Medical device functionalization: antimicrobial TiO₂ coatings on orthopedic implants; biocompatible SiO₂ passivation of neural electrodes
• Optical component enhancement: anti-reflective (MgF₂/TiO₂) and high-refractive-index (Ta₂O₅) stacks on aspheric lenses and AR/VR waveguides
• Power electronics: high-k dielectric (HfO₂) gate stacks for GaN-on-Si transistors and conformal Al₂O₃ insulation for SiC power modules
• Precision mechanics: wear-resistant nanolaminates (e.g., CrN/AlN) on watch gears and surgical instrument surfaces

FAQ

What is the maximum aspect ratio achievable with conformal coating on 3D parts?
The P-300B achieves >90% step coverage in features with aspect ratios up to 100:1 using Picoflow™-optimized thermal ALD processes—validated on MEMS comb drives and porous titanium scaffolds.
Does the system support remote diagnostics and predictive maintenance?
Yes—optional Picosun RemoteConnect™ enables secure, encrypted telemetry streaming for real-time health monitoring, failure mode prediction, and automated spare-part provisioning based on usage analytics.
Can the P-300B be upgraded to support plasma-enhanced ALD (PE-ALD)?
No—the P-300B is a thermally driven platform. Plasma functionality is available only on the separate P-300 PE series, which features integrated RF and microwave sources with independent impedance matching.
Is training and process development support included with purchase?
Standard delivery includes 5-day on-site installation qualification, operator certification, and one complimentary ALD process optimization session (up to 3 precursors, 2 material systems). Extended support contracts cover annual preventive maintenance and quarterly application workshops.
How does the system handle moisture- and oxygen-sensitive precursors?
All precursor lines feature double-sealed VCR fittings, continuous N₂ purging of valve manifolds, and optional glovebox-integrated loading modules with <0.1 ppm O₂/H₂O environment control.