Jianhu PI-Grade High-Temperature Vacuum Oven for Polyimide Dehydration and Anaerobic Curing
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM/ODM Equipment Manufacturer |
| Product Category | Domestic Laboratory & Industrial Vacuum Oven |
| Model | JH-VAC-PI Series |
| Price Range | USD 900 – 9,000 (FOB Shanghai) |
Overview
The Jianhu PI-Grade High-Temperature Vacuum Oven is an engineered solution for thermal processing of polyimide (PI) films, precursors, and related high-performance polymers under strictly controlled anaerobic and low-oxygen conditions. Designed to meet the stringent requirements of semiconductor packaging, flexible printed circuit (FPC) manufacturing, and aerospace-grade composite curing, this oven operates on a dual-stage vacuum–inert gas purge principle. It achieves and maintains oxygen concentrations ≤10 ppm via integrated two-stage mechanical vacuum pumping (rotary vane + turbomolecular) coupled with closed-loop nitrogen (N₂) or argon (Ar) purging. Unlike standard vacuum ovens, the JH-VAC-PI Series incorporates structural and thermal design features specifically validated for continuous operation at 200–250 °C without dimensional drift, seal degradation, or vacuum integrity loss—critical for PI imidization kinetics and long-term material stability.
Key Features
- Stainless steel 316L seamless inner chamber with full-welded construction, eliminating crevices and ensuring corrosion resistance during extended high-temperature exposure.
- High-temperature-rated fluorosilicone and metal-CIP gaskets rated for continuous service up to 250 °C, certified per ASTM D1418 and ISO 3601-1.
- Programmable PID temperature controller with dual-sensor redundancy (PT100 Class A), ±0.5 °C accuracy over full operating range (RT to 250 °C).
- Multi-zone heating system with independently controlled upper, lower, and sidewall zones; ensures radial and axial temperature uniformity ≤±0.8 °C at 230 °C (per IEC 60068-3-5).
- Real-time dissolved oxygen (DO) monitoring via electrochemical sensor (0–100 ppm range, resolution 0.1 ppm), with analog output and alarm-triggered N₂ top-up logic.
- Integrated vacuum integrity test protocol compliant with ISO 2859-1 sampling plans; automated leak rate verification (≤5×10⁻³ mbar·L/s) prior to process initiation.
Sample Compatibility & Compliance
The JH-VAC-PI Series accommodates substrates including polyimide films (Kapton®, Upilex®, VTEC™), copper-clad laminates, ceramic carriers, silicon wafers (up to 300 mm), and pre-preg composites. Chamber dimensions are customizable (standard: W600 × D600 × H700 mm). All models conform to IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emission) standards. Vacuum system components comply with PED 2014/68/EU for pressure equipment. For regulated environments, optional audit trail logging supports FDA 21 CFR Part 11 compliance when paired with Jianhu’s TraceLink™ software module (GMP/GLP-ready configuration available).
Software & Data Management
Jianhu’s proprietary VacControl™ software (Windows-based, USB/Ethernet interface) enables full recipe management, real-time graphing of vacuum level, O₂ concentration, and multi-point temperature profiles. Data export is supported in CSV, PDF, and XML formats, with timestamped metadata including operator ID, batch number, and environmental ambient logs. Optional cloud synchronization (AWS-hosted) allows remote monitoring across multi-site facilities. All process records retain SHA-256 hash integrity and support electronic signature workflows aligned with Annex 11 and ALCOA+ data governance principles.
Applications
- Final dehydration and cyclodehydration of polyimide precursor films prior to lamination or metallization.
- Thermal imidization of spin-coated PI layers in display backplane and micro-LED substrate fabrication.
- Outgassing of space-grade adhesives, encapsulants, and die-attach materials per ECSS-Q-ST-70-02C.
- Pre-bake stabilization of MEMS packaging substrates to prevent interfacial delamination during subsequent wafer-level bonding.
- Controlled pyrolysis of PI-derived carbon membranes in battery separator R&D.
FAQ
What vacuum level can the JH-VAC-PI Series achieve, and how is it verified?
Standard configuration reaches ≤5×10⁻³ mbar using dual-stage pumping; optional turbomolecular upgrade achieves ≤1×10⁻⁵ mbar. Vacuum integrity is automatically verified before each cycle using pressure-rise testing per ISO 10277.
Is the oven suitable for GMP-compliant production environments?
Yes—when equipped with TraceLink™ software, electronic signatures, and 21 CFR Part 11 audit trail modules, it meets GMP Annex 15 and EU GMP Annex 11 validation requirements.
Can chamber volume and port layout be customized for integration into automated material handling lines?
Absolutely—Jianhu provides full mechanical interface documentation (STEP/IGES), custom flange configurations (KF40/KF50/CF150), and PLC-compatible I/O mapping for SECS/GEM or OPC UA integration.
What maintenance intervals are recommended for long-term reliability at 250 °C?
Vacuum pump oil change every 1,000 operational hours; door gasket inspection every 6 months; temperature sensor calibration annually or per IQ/OQ protocol. Full preventive maintenance kits and OEM spare parts are stocked globally.
Does Jianhu provide IQ/OQ documentation and on-site qualification support?
Yes—qualified engineers deliver site-specific Installation Qualification (IQ), Operational Qualification (OQ), and Performance Qualification (PQ) packages aligned with ASTM E2500 and ISO 13485 frameworks.
