Other Brands OK-HAST Series Compact High-Pressure Steam Aging Chamber
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Price | USD 14,000 (approx.) |
| Internal Dimensions (W×H×D) | Φ250×300 mm / Φ300×450 mm / Φ450×500 mm / Φ650×600 mm |
| External Dimensions (W×H×D) | 500×500×700 mm / 580×850×650 mm / 800×750×900 mm / 950×900×1100 mm |
| Temperature Range | +100 °C to +132 °C |
| Temp. Uniformity | ±1.5 °C |
| Temp. Stability | ±0.5 °C |
| Humidity Range | 75–100 % RH (saturated steam) |
| Humidity Uniformity | ±3.0 % RH |
| Humidity Stability | ±1.5 % RH |
| Pressure Range | 0–2.0 / 2.5 / 3.0 / 3.5 / 4.0 kg/cm² (selectable) |
| Pressure Accuracy | ±0.1 kg/cm² |
| Test Duration | 0–999 h |
| Pressurization Time (0 → 2.0 kg/cm²) | ~45 min |
| Heating Rate (100 °C → 132 °C, no-load, air temp. avg.) | ~10 min |
| Control System | Touchscreen LCD with PID algorithm, ±0.1 °C setpoint accuracy |
| Safety Systems | Dual overtemperature cutoff (electronic + mechanical), triple pressure safety interlocks, emergency manual & dual-stage automatic pressure relief valves |
| Steam Generation | Vacuum-assisted saturated steam conditioning prior to pressurization |
| Compliance | Designed per JEDEC JESD22-A102 (HAST), A110, and IEC 60068-2-66 test requirements |
Overview
The OK-HAST Series Compact High-Pressure Steam Aging Chamber is an engineered environmental stress test system designed for accelerated reliability evaluation of microelectronic components and printed circuit assemblies under highly accelerated stress test (HAST) conditions. Operating on the principle of saturated steam pressurization within a sealed chamber, it subjects devices to elevated temperature, high relative humidity, and controlled overpressure—enabling rapid simulation of long-term moisture ingress and electrochemical degradation mechanisms observed in field use. Unlike conventional autoclave-based aging systems, this chamber integrates precision PID-controlled thermal management, vacuum-assisted steam saturation, and real-time pressure regulation to ensure strict adherence to JEDEC JESD22-A102 (Unbiased HAST) and A110 (Biased HAST) protocols. Its compact footprint and modular internal volume options (25 L to 65 L) make it ideal for R&D labs, quality assurance departments, and contract manufacturing organizations requiring repeatable, standards-compliant accelerated life testing without full-scale production chamber infrastructure.
Key Features
- Four standardized chamber volumes: OK-HAST-25 (Φ250×300 mm), OK-HAST-35 (Φ300×450 mm), OK-HAST-45 (Φ450×500 mm), and OK-HAST-65 (Φ650×600 mm), each with fully insulated stainless-steel construction and reinforced door sealing.
- Precision control of temperature (+100 °C to +132 °C, ±0.5 °C stability, ±1.5 °C uniformity) and saturated humidity (75–100 % RH, ±1.5 % RH stability, ±3.0 % RH uniformity) via integrated steam generator and feedback-regulated condensate management.
- Selectably configurable pressure range up to 4.0 kg/cm² (≈3.92 bar absolute), with calibrated pressure transducer (±0.1 kg/cm² accuracy) and programmable ramp/soak profiles.
- Vacuum-assisted steam conditioning cycle ensures removal of non-saturated air prior to pressurization—critical for achieving true saturated vapor conditions required by JEDEC standards.
- Triple-redundant safety architecture: (1) dual independent electronic overtemperature cutoffs (primary and secondary PID loops), (2) mechanical pressure relief valve rated at maximum operating pressure, and (3) manually operable emergency vent valve plus dual-stage automatic depressurization logic.
- Intuitive 7-inch resistive touchscreen controller with embedded data logging, real-time graphing, password-protected parameter editing, and audit-trail-capable event history (compatible with GLP/GMP documentation workflows).
Sample Compatibility & Compliance
This chamber accommodates standard JEDEC trays, FR-4 PCB panels up to 300 mm × 450 mm, IC packages (QFP, BGA, CSP), LCD modules, magnetic components, and hermetically sealed sensors. All models are configured to meet the critical operational envelopes defined in JEDEC JESD22-A102 (e.g., 110 °C / 90 % RH / 200 kPa or 120 °C / 95 % RH / 120 kPa) and support both unbiased and biased HAST configurations when integrated with external bias supplies. The system’s thermal and pressure response characteristics have been validated against IEC 60068-2-66 Annex A for high-pressure saturated steam testing. While not certified as a medical device, its design conforms to general electrical safety requirements per IEC 61010-1 and EMC compliance per CISPR 11 Group 1 Class A.
Software & Data Management
The embedded controller firmware supports continuous timestamped logging of chamber temperature, relative humidity, absolute pressure, and elapsed test time at user-selectable intervals (1–60 seconds). Export is available via USB flash drive in CSV format for traceability and post-test statistical analysis (e.g., Weibull lifetime modeling). Optional Ethernet interface enables remote monitoring and integration into centralized lab management systems. All parameter changes, alarm events, and safety interventions are recorded with operator ID (if enabled), date/time stamp, and contextual status flags—supporting FDA 21 CFR Part 11 compliance when deployed with supplementary access controls and electronic signature validation.
Applications
- Accelerated moisture sensitivity level (MSL) qualification per J-STD-020.
- Failure mode analysis of solder joint intermetallic growth, wire bond corrosion, and die attach delamination.
- Qualification of conformal coatings and encapsulants under combined thermal-humidity-stress conditions.
- Reliability screening of automotive electronics (AEC-Q200 compliant test planning).
- Process validation for wafer-level packaging and fan-out wafer-level packaging (FOWLP) technologies.
- Material compatibility testing of adhesives, underfills, and molding compounds exposed to high-humidity environments.
FAQ
What standards does this chamber support?
It is engineered to execute JEDEC JESD22-A102 (Unbiased HAST), A110 (Biased HAST), and IEC 60068-2-66 test methods. Configuration files for common test conditions are preloaded.
Is vacuum pre-conditioning mandatory before each test?
Yes—vacuum evacuation to ≤10 kPa absolute is performed automatically at test initiation to displace ambient air and ensure steam saturation prior to pressurization, as required by JEDEC.
Can the chamber be integrated with external DC bias supplies?
Yes—rear-panel terminals allow connection to programmable power supplies for biased HAST; voltage/current limits must comply with JESD22-A110 specifications.
What maintenance is required for long-term calibration integrity?
Annual verification of temperature, humidity, and pressure sensors using NIST-traceable references is recommended. Steam generator descaling every 200 operational hours prevents mineral buildup and maintains vapor purity.
Does the system include validation documentation?
Factory-installed IQ/OQ documentation templates are provided, including sensor calibration certificates, safety interlock verification records, and chamber uniformity mapping reports (per ISO/IEC 17025 guidelines).
