Jianhu JH-SemiVac Series Semiconductor-Grade Vacuum Drying Oven
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | JH-SemiVac Series |
| Price Range | USD 700 – 7,000 (FOB Shanghai) |
| Vacuum Level | ≤6×10⁻² Pa (standard), ≤1×10⁻³ Pa (high-vacuum optional) |
| Temperature Range | -60°C to 400°C |
| Temperature Uniformity | ≤±1.5°C (9-point measurement) |
| Leak Rate | ≤8×10⁻³ MPa·L/s |
| Chamber Material | 316L stainless steel with PTFE anti-corrosion coating |
| Compliance | ISO 9001, GB/T 2423 (IEC 60068), supports FDA 21 CFR Part 11–compliant data logging via optional software module |
Overview
The Jianhu JH-SemiVac Series Semiconductor-Grade Vacuum Drying Oven is engineered for precision-controlled thermal processing in oxygen-sensitive, high-reliability semiconductor manufacturing environments. Unlike general-purpose vacuum ovens, the JH-SemiVac employs a fundamental design philosophy rooted in semiconductor process physics: it integrates ultra-low-leakage chamber architecture, dual-zone intelligent temperature regulation, and cryogenic-capable thermal management to meet the stringent requirements of wafer drying, die-attach curing, photoresist stabilization, and nanomaterial lyophilization. Its operational principle relies on simultaneous vacuum evacuation (to suppress oxidative degradation), precise conductive heating (for uniform thermal energy transfer), and active cooling (to enable sub-zero freeze-drying without ice crystal damage). The system operates within a rigorously validated pressure–temperature–time envelope aligned with industry-critical thresholds: ≤10 Pa ultimate vacuum, ±0.8°C temperature accuracy, and ≤8×10⁻³ MPa·L/s helium leak rate—parameters verified per ASTM E493 and ISO 10648-2 protocols. This enables stable, repeatable processing of photolithographic resists, quantum dot films, MEMS packaging adhesives, and GaN-based substrates under Class 100 cleanroom-compatible conditions.
Key Features
- Laser-welded 316L stainless steel chamber with electropolished interior and dual-layer PTFE corrosion-resistant coating—validated for 168-hour immersion in glacial acetic acid per SEMI F21-02 standards.
- Dual-zone PID+SSR temperature control system with imported Pt100 RTD sensors; achieves ±0.8°C setpoint accuracy, ≤0.3°C overshoot, and ≤1.5°C spatial uniformity across nine calibrated points (per IEC 60068-3-5).
- Cryogenic drying module enabling -60°C to 400°C operating range; reaches -60°C within 30 minutes from ambient, supporting sub-millimeter chip freeze-drying with ≤0.4 cm sample thickness and ≤5.5 h cycle time.
- Ultra-low leakage architecture: helium leak rate ≤8×10⁻³ MPa·L/s (measured per ISO 10648-2); 48-hour vacuum hold test shows pressure rise <0.003 MPa at 6×10⁻² Pa baseline.
- MES-integrated data management interface supporting HTTP/HTTPS and TCP/IP protocols; stores ≥500,000 drying cycles with timestamped, user-authenticated audit trails compliant with FDA 21 CFR Part 11 Annex 11 requirements.
- Modular mechanical configuration options: freestanding upright, floor-mounted horizontal, or cleanroom-embedded installation—designed for ISO Class 5–7 semiconductor fab integration.
Sample Compatibility & Compliance
The JH-SemiVac accommodates wafers up to 300 mm diameter, stacked die packages (QFN, BGA, WLCSP), MEMS sensor arrays, and photoresist-coated substrates. Its chamber geometry and airflow dynamics are optimized to minimize thermal gradient-induced stress in brittle silicon nitride membranes and low-k dielectrics. All wetted surfaces comply with SEMI F57-03 (cleanliness classification) and ASTM F2279 (outgassing limits for vacuum systems). The system conforms to GB/T 2423.7-2018 (environmental testing—vacuum tests), ISO 9001:2015 certified manufacturing, and supports GLP/GMP traceability through optional electronic batch records. Third-party validation reports—including vacuum integrity, temperature mapping, and acid resistance—are provided with each unit shipment.
Software & Data Management
Jianhu’s proprietary JH-DataLink™ software provides real-time monitoring, remote parameter adjustment, and automated report generation. It features role-based access control (RBAC), encrypted local storage, and configurable alarm thresholds for vacuum decay, temperature deviation, and cycle timeout. Raw data export supports CSV, XML, and PDF formats; metadata includes operator ID, environmental log (ambient T/RH), and equipment calibration status. When deployed with optional 21 CFR Part 11 add-on module, the software delivers full electronic signature capability, immutable audit trail, and system-generated certificate of conformance per batch—enabling direct integration into semiconductor quality management systems (QMS) and regulatory submissions.
Applications
- Wafer-level drying post-wet etch or rinse processes—preventing watermark formation and interfacial oxidation on SiO₂/SiNₓ stacks.
- Curing of epoxy-based underfill and glob-top encapsulants in advanced packaging (Fan-Out, 2.5D/3D IC), where ±1.0°C thermal stability ensures consistent cross-link density and void suppression.
- Stabilization of chemically amplified photoresists (CARs) prior to post-exposure bake (PEB), minimizing standing wave effects and line-edge roughness (LER).
- Lyophilization of quantum dot inks and perovskite precursor solutions for display backplane fabrication, preserving colloidal integrity under inert vacuum.
- Outgassing preconditioning of ceramic substrates and RF filter components prior to thin-film deposition (PVD/CVD), reducing residual H₂O and CO contamination.
FAQ
What vacuum level does the JH-SemiVac achieve, and how is it verified?
Standard models reach ≤6×10⁻² Pa using dual-stage oil-free scroll + turbomolecular pump configuration; high-vacuum variants (optional) achieve ≤1×10⁻³ Pa. Verification follows ISO 10648-2 helium leak testing and continuous pressure-rise monitoring over 48 hours.
Is the chamber compatible with acidic process residues commonly found in semiconductor fabs?
Yes. The 316L stainless steel chamber is coated with a 25 µm PTFE layer, validated per SEMI F21-02 for resistance to HF, HNO₃, and CH₃COOH exposure—no pitting or seal degradation observed after 168-hour immersion.
Can the JH-SemiVac integrate with our existing MES platform?
Yes. Standard Ethernet (TCP/IP) and RESTful API interfaces support bidirectional communication with Siemens Opcenter, Applied Materials eDAPT, and generic MES via HTTP/HTTPS—no third-party middleware required.
What is the mean time between failures (MTBF) for this system in 24/7 production use?
Based on field data from 28 semiconductor clients (2022–2024), MTBF exceeds 8,000 hours; annual failure rate is 0.5%, significantly below the industry average of 4.2% (CSIA 2025 Benchmark Report).
Does Jianhu provide on-site installation and operator training?
Yes. All orders include factory-certified on-site commissioning, IQ/OQ documentation, and three annual hands-on training sessions covering SOP development, preventive maintenance, and data integrity compliance.
