JH Semiconductor-Specific Heating-Cooling Temperature & Humidity Environmental Test Chamber
| Brand | JH |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | OEM/ODM Manufacturer |
| Country of Origin | China |
| Model | JH-Semiconductor TH-CH Series |
| Price Range | USD 1,200 – 14,500 (FOB Shanghai) |
| Temperature Range | −70 °C to +150 °C |
| Cooling Method | Dual-Stage Compressor-Based Refrigeration |
| Explosion-Proof Design | Yes (Class I, Division 2, Group C/D compliant) |
| Temperature Fluctuation | ±0.5 °C (at setpoint, steady-state) |
| Temperature Uniformity | ±2.0 °C (across working chamber) |
| Temperature Deviation | ±2.0 °C (vs. reference sensor) |
| Ramp-Up Time | ≤60 min (−40 °C to +85 °C) |
| Ramp-Down Time | ≤45 min (25 °C to −40 °C), ≤60 min (25 °C to −55 °C), ≤80 min (25 °C to −70 °C) |
| Interior Dimensions | Customizable (standard range: W300–2000 mm × D300–1500 mm × H300–1800 mm) |
Overview
The JH Semiconductor-Specific Heating-Cooling Temperature & Humidity Environmental Test Chamber is an engineered environmental simulation system designed explicitly for reliability validation and accelerated stress testing of semiconductor devices, IC packages, wafer-level components, and advanced packaging materials (e.g., mold compounds, underfills, die attach adhesives). It operates on a dual-mode thermodynamic control architecture—integrating high-efficiency cascade compression refrigeration with precision PID-controlled resistive heating and steam-based humidification—to deliver tightly regulated thermal and hygrothermal profiles across an extended operational envelope (−70 °C to +150 °C; 10–98% RH). Unlike general-purpose climatic chambers, this model incorporates semiconductor-grade design considerations: explosion-proof electrical enclosures compliant with IEC 60079-0 and NEC Class I, Div 2 standards; low-outgassing internal chamber materials (304L stainless steel, electropolished surfaces); minimized particulate generation during temperature ramping; and humidity control stability optimized for moisture sensitivity level (MSL) testing per JEDEC J-STD-020 and J-STD-033.
Key Features
- Explosion-proof certified construction (ATEX/IECEx optional), suitable for testing volatile process gases or flammable solvents in R&D cleanroom environments
- High-stability dual-sensor temperature control system with independent reference-grade PT100 sensors and real-time deviation compensation
- Steam-humidification system with deionized water reservoir, anti-scaling heater design, and condensate management to ensure long-term RH repeatability
- Programmable multi-segment thermal/hygrothermal profiles with up to 999 cycles, supporting HALT, HASS, and JEDEC-compliant preconditioning sequences
- Chamber interior fully customizable in volume and configuration—including removable shelves, cable ports with EMI grommets, and integrated thermocouple feedthroughs
- Robust mechanical architecture featuring reinforced insulation (≥150 mm polyurethane foam, λ ≤ 0.022 W/m·K), hermetic door seals, and vibration-damped compressor mounting
Sample Compatibility & Compliance
This chamber accommodates wafer trays (FOUP/SMIF compatible), leadframe carriers, QFN/BGA test boards, and full-panel PCBAs—supporting both static and dynamic biasing via external I/O interfaces. Internal airflow is engineered for uniform thermal distribution (±2.0 °C uniformity per IEC 60068-3-5) without inducing convective stress on fine-pitch interconnects. The system complies with key industry standards including IEC 60068-2-1 (cold), IEC 60068-2-2 (dry heat), IEC 60068-2-30 (damp heat cyclic), JEDEC JESD22-A104 (temperature cycling), and MIL-STD-810H Method 502.7. Optional qualification documentation supports ISO/IEC 17025-accredited lab implementation and FDA 21 CFR Part 11 audit readiness when paired with validated software.
Software & Data Management
Bundled with JH-EnviroLog™ v4.2 control software, the chamber provides real-time monitoring, automated calibration logging, and electronic signature-enabled test report generation. The software supports ASTM E2922-compliant uncertainty calculation for temperature and humidity measurements, stores raw sensor data at configurable intervals (100 ms to 5 min), and exports CSV/Excel-compatible files traceable to NIST-traceable reference standards. Audit trail functionality records all user actions—including parameter changes, manual overrides, and calibration events—with timestamps and operator IDs. Remote access is enabled via TLS-secured Ethernet or optional cellular modem, allowing integration into MES/QMS platforms (e.g., Siemens Opcenter, ETQ Reliance) through OPC UA or Modbus TCP protocols.
Applications
- Preconditioning of moisture-sensitive devices prior to reflow soldering (per J-STD-033)
- Temperature-humidity-bias (THB) testing of gate oxides and passivation layers
- Highly Accelerated Life Testing (HALT) of power modules and SiC/GaN devices
- Thermal cycling validation of flip-chip interconnects and TSV structures
- Reliability screening of advanced packaging substrates (ABF, Ajinomoto Build-up Film)
- Environmental stress screening (ESS) for automotive-grade ASICs and ADAS SoCs
FAQ
Does this chamber support JEDEC J-STD-020 MSL classification testing?
Yes—configured with rapid ramp rates, tight humidity control (±2% RH), and programmable soak dwell times, it meets all thermal profile requirements for MSL 1–6 classification per revision E.
Can the chamber be integrated into a factory automation system?
Yes—standard Modbus TCP and optional OPC UA interfaces enable bidirectional communication with SCADA, MES, and PLC systems for recipe loading, status reporting, and alarm forwarding.
Is NIST-traceable calibration documentation included?
A full calibration certificate (including as-found/as-left data for temperature, humidity, and ramp rate) is provided with each unit. Optional annual recalibration services are available with ISO/IEC 17025 accreditation.
What is the typical lead time for custom chamber configurations?
Standard models ship within 6–8 weeks; custom dimensions, special coatings, or integrated electrical feedthroughs require 10–14 weeks from order confirmation.
Does the explosion-proof version meet international hazardous location standards?
Yes—the Ex d IIB T4 Gb / Ex tb IIIC T135°C Db variant complies with IEC 60079-1, IEC 60079-7, and ATEX 2014/34/EU directives for Zone 1 and Zone 21 applications.
