Jianhu Semiconductor Inert-Atmosphere High-Temperature Nitrogen Purge Oven
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor & OEM Partner |
| Product Category | Domestic High-Reliability Environmental Test Equipment |
| Model | JH-N2-Oven Series |
| Price Range | USD 900 – 9,000 (FOB Shanghai) |
Overview
The Jianhu Semiconductor Inert-Atmosphere High-Temperature Nitrogen Purge Oven is an engineered solution for thermal processing of sensitive semiconductor components under strictly controlled oxygen-free conditions. Designed around the fundamental requirement of maintaining ultra-low residual oxygen concentration (<1 ppm) during high-temperature bake cycles (up to 300 °C), this oven employs a dual-stage nitrogen management architecture: primary inert gas supply with inline purity monitoring and secondary recirculation purification via catalytic deoxygenation. Its operational principle relies on continuous positive-pressure nitrogen purge combined with multi-point leak-tightness validation—ensuring that chamber integrity remains uncompromised across thermal expansion cycles. Unlike generic industrial ovens, the JH-N2-Oven Series integrates real-time O₂ sensing (electrochemical cell-based), closed-loop flow compensation, and temperature-compensated pressure differential control—critical parameters for wafer-level packaging, die attach curing, and post-lithography resist stabilization where oxidation-induced interfacial degradation directly impacts device yield and long-term reliability.
Key Features
- Triple-seal chamber design using fluorocarbon elastomer gaskets (FKM/Viton®) rated for continuous operation at 300 °C, validated per ISO 10648-2 leakage class B
- Integrated nitrogen purity monitoring system with electrochemical O₂ sensor (0–10 ppm range, ±0.1 ppm accuracy), logging timestamped readings every 5 seconds
- PID-controlled heating system with independent zone calibration; temperature uniformity ≤ ±0.5 °C at 250 °C (measured per IEC 60068-3-5 across 9-point grid)
- High-efficiency nitrogen recirculation loop featuring palladium-catalyzed deoxygenation module, enabling stable 8 h)
- Programmable ramp-soak profiles with up to 20 segments, supporting JEDEC J-STD-020-compliant moisture sensitivity level (MSL) preconditioning
- Stainless steel 316L inner chamber with electropolished finish (Ra ≤ 0.4 µm) to minimize particle generation and outgassing
Sample Compatibility & Compliance
The JH-N2-Oven Series accommodates wafers (up to 300 mm), leadframes, bare dies, MEMS packages, and ceramic substrates in standard cassette or boat configurations. Chamber dimensions are configurable (standard: W600 × D600 × H600 mm; custom sizes available). All models comply with IEC 61000-6-2/6-4 (EMC), UL 61010-1 (safety), and meet mechanical requirements outlined in SEMI F47 for voltage sag immunity. For regulated environments, optional audit-trail-enabled firmware supports 21 CFR Part 11-compliant electronic records—including user access logs, parameter change history, and alarm event timestamps. The system is routinely deployed in ISO Class 5–7 cleanrooms and satisfies GLP/GMP documentation requirements when paired with Jianhu’s validated IQ/OQ protocols.
Software & Data Management
Equipped with Jianhu’s proprietary N2Control™ v3.2 software, the oven provides local HMI operation via 7-inch capacitive touchscreen and remote supervision via Ethernet (Modbus TCP / OPC UA). All process data—including chamber pressure, O₂ concentration, zone temperatures, nitrogen mass flow rates, and door open/close events—are time-synchronized and exportable in CSV or ASTM E1382-compliant XML format. The software includes built-in statistical process control (SPC) tools for Cp/Cpk calculation on key parameters, automated deviation alerts with configurable escalation paths (email/SMS), and integration-ready APIs for MES/SCADA systems. Raw sensor data is stored locally on industrial-grade SSD with 3-year retention; optional cloud backup complies with GDPR and CCPA data residency rules.
Applications
- Pre-bake and post-bake stabilization of photoresists and BARC layers prior to lithography
- Moisture removal from plastic-encapsulated microcircuits (PEMs) per IPC/JEDEC J-STD-033
- Curing of silver sinter pastes and conductive adhesives in power module assembly
- Oxidation-sensitive annealing of AlGaN/GaN HEMT structures and SiC MOSFET gate oxides
- Outgassing treatment of RF cavity components and vacuum-compatible optical mounts
- Thermal aging studies of encapsulants and underfills under inert atmosphere (ASTM D3045)
FAQ
What nitrogen purity level can be sustained at 300 °C for 12-hour dwell cycles?
With continuous primary N₂ feed (≥99.999% purity) and active recirculation purification, residual O₂ remains ≤0.5 ppm throughout the full cycle, verified by third-party traceable calibration.
Is the chamber certified for Class 100 cleanroom compatibility?
Yes—the interior surface finish, material selection, and particulate shedding rate (<1 particle ≥0.5 µm/cm²/min) conform to ISO 14644-1 Class 5 specifications when operated with HEPA-filtered N₂ supply.
Can the system be integrated into an existing factory automation network?
All units ship with native Modbus TCP support; optional OPC UA server license enables seamless connectivity to Siemens PCS7, Rockwell FactoryTalk, or Yokogawa CENTUM VP platforms.
What validation documentation is provided with shipment?
Each unit includes Factory Acceptance Test (FAT) report, as-built P&ID, calibration certificates for all critical sensors (NIST-traceable), and IQ/OQ templates aligned with Annex 15 and ISO 13485 requirements.
Does Jianhu offer on-site installation and qualification support?
Yes—qualified field engineers perform SAT (Site Acceptance Testing) including temperature mapping (per ASTM E2297), leak integrity verification (helium mass spectrometry), and operational qualification under actual production load conditions.
