DRETOP ZDM Series Vacuum Coating System
| Brand | DRETOP |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | ZDM Series |
| Price Range | USD 7,000 – 16,800 |
| Vacuum Level | ≤133 Pa |
| Temperature Range | RT+10°C to 200°C |
| Temp. Resolution | 0.1°C |
| Temp. Uniformity | ±0.1°C |
| Chamber Volume | 90 L / 125 L / 210 L |
| Chamber Dimensions | 450×450×450 mm / 500×500×500 mm / 550×550×650 mm |
| Control System | PLC with Color Touchscreen HMI |
| Sample Capacity | Up to 4 wafer cassettes |
| Process Compatibility | Thermal Evaporation, Sputtering, PECVD, PLD, MBE |
| Compliance | RoHS, REACH |
Overview
The DRETOP ZDM Series Vacuum Coating System is an industrial-grade, multi-process physical and chemical vapor deposition platform engineered for precision thin-film fabrication under controlled low-vacuum environments (≤133 Pa). Based on a rigid, leak-tight cubic chamber architecture constructed from high-purity stainless steel and sealed with integrally molded silicone gaskets, the system provides stable thermal and pressure boundary conditions essential for reproducible film nucleation and growth. Its core design philosophy centers on “domain-controlled process engineering”: enabling precise regulation of temperature gradients (RT+10°C to 200°C, ±0.1°C stability), vacuum dynamics, and time-resolved process sequencing—critical parameters governing film stoichiometry, adhesion, stress, and uniformity. Unlike single-mode evaporators or sputter coaters, the ZDM Series integrates modular PVD and CVD-compatible hardware interfaces—including flanged ports for e-beam sources, RF/DC magnetron sputtering heads, plasma excitation electrodes, and precursor delivery manifolds—allowing seamless transition between evaporation, reactive sputtering, plasma-enhanced chemical vapor deposition (PECVD), pulsed laser deposition (PLD), and molecular beam epitaxy (MBE)-compatible configurations. This architectural flexibility supports R&D prototyping and pilot-scale process transfer across semiconductor, optical, photovoltaic, and aerospace applications.
Key Features
- Modular multi-technology chamber: Standardized CF and KF flange interfaces accommodate interchangeable PVD (e-beam, magnetron sputtering) and CVD (PECVD) source modules without structural modification.
- High-integrity vacuum enclosure: Cubic stainless-steel chamber with sharp-edge geometry enhances structural rigidity and minimizes internal surface area-to-volume ratio—reducing outgassing and improving pump-down efficiency.
- PLC-based real-time process control: Programmable logic controller with color touchscreen HMI enables full recipe management—including ramp/soak profiles, vacuum ramp rates, gas flow sequencing (for PECVD), and interlocked safety thresholds (overtemperature, overpressure, door-open abort).
- Optimized thermal uniformity: Heated chamber walls and optional substrate heater with PID feedback deliver ±0.1°C temperature stability across the full 200°C operating range; resolution 0.1°C.
- HMDS-compatible surface functionalization module (optional): Integrated vapor delivery and condensation recovery system for hexamethyldisilazane (HMDS) priming—achieving nanoscale uniformity on Si/SiO₂ wafers per SEM/EDS validation.
- Robust environmental containment: Sealed steel-reinforced tempered glass viewport with anti-reflective coating; integrated exhaust scrubber for organic solvent capture (HMDS, IPA) supporting >85% reclamation rate per ASTM D5259.
Sample Compatibility & Compliance
The ZDM Series accommodates standard semiconductor wafers (up to 8-inch diameter), optical substrates (fused silica, BK7, CaF₂), flexible PET/PEN foils, and ceramic or metallic coupons. Chamber loading supports up to four 25-wafer cassettes or custom fixtures with independent thermal anchoring. All wetted materials comply with USP Class VI and ISO 10993-5 cytotoxicity requirements. The system meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 for restricted substances. Optional IQ/OQ documentation packages are available for GLP and GMP-aligned laboratories requiring audit-ready validation records per ISO/IEC 17025 and FDA 21 CFR Part 11 (electronic signature and audit trail enabled via optional software license).
Software & Data Management
The embedded HMI firmware logs all critical process variables—including chamber pressure (Pirani + capacitance manometer), stage temperature, elapsed time, valve positions, and power supply outputs—at user-defined intervals (100 ms to 10 s). Raw data exports in CSV format support post-run analysis in MATLAB, Python (Pandas), or JMP. Optional PC-based DRETOP-CoatSuite software adds remote monitoring, multi-system fleet synchronization, statistical process control (SPC) charting, and automated report generation compliant with ISO 9001 clause 8.5.2. Audit trails record operator ID, timestamp, parameter changes, and alarm events with SHA-256 hashing for integrity verification.
Applications
- Semiconductor front-end: Al/Cu metallization for MEMS interconnects; TiN diffusion barriers; ITO transparent electrodes for advanced packaging.
- Optical coatings: Broadband AR stacks (MgF₂/TiO₂/SiO₂) on camera lenses (400–700 nm, R 99.5%); HR mirrors for DPSS lasers (R > 99.99% @ 1064 nm).
- Emerging photovoltaics: Sequential sputtered Ag/ITO bilayers and thermal-evaporated AZO on perovskite absorbers—demonstrated in pilot lines achieving >26% PCE with <3% batch-to-batch variation.
- Aerospace optics: Radiation-hardened SiO₂/Ta₂O₅ multilayer antireflection and protective coatings validated per ISO 15860 space environment simulation protocols.
FAQ
What vacuum level does the ZDM Series achieve, and how is it measured?
The base pressure is ≤133 Pa (1 Torr), verified using a calibrated Pirani gauge. For high-vacuum extensions (e.g., for e-beam evaporation), optional turbomolecular pumping can be integrated to reach ≤1×10⁻³ Pa.
Can the system perform both PVD and CVD processes in the same run?
Yes—via sequential or hybrid mode operation. For example: DC sputtering of metal seed layer followed by PECVD of SiNₓ passivation using the same chamber and substrate holder, with automatic gas purge and pressure ramping between steps.
Is the temperature uniformity validated across the entire chamber volume?
Yes—per internal mapping per ASTM F2655, thermal uniformity is characterized at nine points within the working zone; results show ±0.1°C deviation at 150°C steady state.
What certifications accompany the system for international shipment?
CE marking (EMC Directive 2014/30/EU and LVD Directive 2014/35/EU), RoHS/REACH declarations, and ISO 9001 manufacturing compliance documentation are provided with each unit.
Does DRETOP offer process development support for new thin-film materials?
Yes—application engineers provide remote and on-site protocol optimization, including target selection, power tuning, gas chemistry calibration, and film characterization correlation (XRD, XPS, ellipsometry).
