Jianhu 2025 Semiconductor-Grade Vacuum Drying Oven

Overview

The Jianhu JH-VDO-2025-Semi is a purpose-engineered vacuum drying oven designed explicitly for semiconductor manufacturing and advanced materials R&D. Unlike generic laboratory vacuum ovens, this system operates on a dual-principle architecture: high-vacuum inert processing (≤6×10⁻² Pa base pressure) combined with precision thermal control (±0.3 °C stability) across a wide operational range (–60 °C to +400 °C). Its core function is to eliminate moisture, solvents, and residual atmospheric oxygen from sensitive substrates—such as photoresist-coated wafers, MEMS devices, and nanostructured thin films—without inducing oxidation, thermal stress, or microstructural damage. The system complies with fundamental process requirements defined in SEMI F21-0218 (Vacuum Process Equipment Safety), ISO 14644-1 Class 5 cleanroom compatibility, and supports traceability under GLP/GMP-aligned workflows via integrated audit-ready data logging.

Key Features

• Ultra-low leakage chamber: Laser-welded 316L stainless steel body with dual-layer fluorosilicone gasketing; measured leak rate ≤0.008 MPa·L/s (per ASTM E493), validated over 48-hour hold tests with pressure drift <0.003 MPa.
• Dual-zone intelligent temperature control: Pt1000 platinum resistance sensors with PID+SSR heating regulation; temperature uniformity ≤±1.2 °C across nine-point mapping (per IEC 60068-3-5); overshoot <0.2 °C during ramp-up.
• Cryogenic-capable thermal module: Factory-integrated cascade refrigeration system enabling stable operation at –60 °C; pre-cool time ≤30 minutes; temperature stability ±0.5 °C over 72-hour continuous run.
• Corrosion-resistant construction: Interior surfaces coated with PTFE-based anti-acid film; validated per 168-hour immersion test in glacial acetic acid (≥99.8% purity) and diluted HF solutions—zero pitting or mass loss observed.
• MES-ready digital interface: Embedded industrial controller with HTTP/HTTPS and TCP/IP protocols; supports real-time data streaming to factory-level Manufacturing Execution Systems; stores ≥500,000 cycle records with timestamp, setpoint, vacuum level, and temperature profile.

Sample Compatibility & Compliance

The JH-VDO-2025-Semi accommodates substrates up to 900 L effective volume (customizable from 27 L to 900 L), including 8″ and 12″ wafer carriers, ceramic chip trays, MEMS sensor arrays, and photoresist-coated quartz masks. Chamber geometry supports both horizontal and vertical loading configurations to align with cleanroom layout constraints (ISO Class 5–7 compatible). All electrical components meet Ex d IIB T4 Ga explosion protection standards and surface resistivity is maintained between 10⁶–10⁹ Ω to prevent electrostatic discharge in semiconductor fabrication environments. Each unit undergoes 30 dedicated validation tests—including vacuum integrity, thermal cycling (–60 °C ↔ +400 °C × 200 cycles), and acid exposure—prior to shipment, exceeding the minimum 18-test benchmark stipulated in GB/T 2423.23–2013 for environmental test equipment.

Software & Data Management

Jianhu’s proprietary JH-ControlSuite v3.2 firmware provides full-cycle automation and regulatory-grade documentation. It enables programmable multi-step drying profiles (vacuum ramp rate, dwell time, temperature ramp slope, and cooldown sequencing), with automatic deviation alerts triggered by out-of-spec conditions (e.g., >±0.5 °C deviation or >0.005 MPa/h pressure rise). Audit trail functionality complies with FDA 21 CFR Part 11 requirements: all user actions, parameter changes, and alarm events are time-stamped, digitally signed, and immutable. Raw data exports in CSV and XML formats; optional integration with LabArchives, Benchling, or custom LIMS platforms via RESTful API. Firmware updates are delivered via secure OTA channel with SHA-256 signature verification.

Applications

This system serves critical unit operations across semiconductor front-end and back-end processes: post-lithography wafer desiccation to prevent photoresist hydrolysis; low-temperature vacuum curing of underfill and molding compounds in advanced packaging (Fan-Out WLP, 2.5D/3D IC); solvent removal from ALD/CVD precursor layers without thermal decomposition; cryo-drying of MEMS accelerometers and gyroscopes to suppress ice recrystallization artifacts; and controlled dehydration of quantum dot films for display applications. In research settings, it supports reproducible fabrication of perovskite solar cells, graphene oxide membranes, and bio-functionalized nanowires where ambient moisture compromises interfacial adhesion and electronic performance.

FAQ

What vacuum level can the JH-VDO-2025-Semi achieve?
Standard configuration achieves ≤6×10⁻² Pa; high-vacuum variants (optional) reach ≤1×10⁻² Pa using upgraded turbomolecular pumping systems.

Is the chamber suitable for acidic process environments?
Yes—the 316L stainless steel cavity with electrophoretic PTFE coating passes 168-hour immersion testing in glacial acetic acid and buffered HF solutions without corrosion or seal degradation.

Does it support integration with existing MES infrastructure?
Yes—native TCP/IP and HTTPS endpoints enable direct connection to Siemens Opcenter, Rockwell FactoryTalk, or custom MES platforms without middleware.

What is the warranty coverage and service response time?
24-month comprehensive warranty covering chamber, thermal module, vacuum system, and controller; technical hotline responds within 60 minutes; certified field engineers arrive onsite within 24 hours in 15 designated semiconductor cluster cities (Shanghai, Suzhou, Shenzhen, Beijing, Wuhan, etc.).

Can the unit be customized for non-standard temperature ranges or volumes?
Yes—Jianhu offers engineering-led customization including extended low-temperature capability (–80 °C), ultra-high vacuum upgrades (≤1×10⁻³ Pa), and bespoke chamber dimensions (minimum order quantity: 3 units).