HAST High-Accelerated Stress Test Chamber (Custom OEM/ODM Supply Available)
| Brand | Other Brands |
|---|---|
| Origin | Imported |
| Manufacturer Type | Authorized Distributor |
| Temperature Range | +105.0°C to +142.9°C |
| Humidity Range | 75–100% RH |
| Temperature Stability | ±0.5°C |
| Humidity Stability | ±3% RH |
| Temperature Uniformity | ±1.0°C |
| Pressure Range | 0.2–2.0 kg/cm²G (Optional: 0.2–4.0 kg/cm²G) |
| Ramp Time | ~120 min (from ambient to 140°C) |
| Internal Chamber Dimensions | Ø45×45 cm or Ø65×60 cm |
| Construction Material | Inner & Outer Chamber – SUS316 Stainless Steel (Body), SUS304 Stainless Steel (Exterior Casing) |
| Power Supply | 1φ 220V 60Hz / 3φ 380V 50Hz, 20A |
Overview
The HAST High-Accelerated Stress Test Chamber is an engineered environmental reliability testing system designed for accelerated life assessment of semiconductor devices, PCBAs, passive components, and hermetically sealed packages under elevated temperature, humidity, and pressure conditions. Operating on the principle of high-pressure saturated steam exposure—also known as Pressure Cooker Test (PCT) or Highly Accelerated Stress Test (HAST)—this chamber significantly reduces test duration compared to traditional Temperature-Humidity-Bias (THB) methods by increasing water vapor partial pressure and accelerating moisture diffusion through packaging interfaces and dielectric layers. Unlike standard humidity chambers, HAST introduces controlled overpressure (up to 4.0 kg/cm²G) to raise the dew point and boiling point of water, enabling stable operation at temperatures exceeding 100°C without boiling dry-out. This enables failure mechanisms such as corrosion, wire bond degradation, intermetallic growth, and delamination to manifest within hours or days rather than weeks or months.
Key Features
- Horizontal cylindrical chamber design with front-loading access—optimized for ergonomic sample loading/unloading of wafers, trays, and DUT carriers
- Magnetic-coupled motor-driven circulation fan system ensures uniform temperature and humidity distribution (±1.0°C / ±3% RH across working volume)
- Integrated safety interlock architecture: automatic shutdown, pressure relief valve activation, vacuum break, and auto-refill function upon cycle completion or fault detection
- Chamber body constructed from high-purity SUS316 stainless steel (resistant to chloride-induced stress corrosion cracking); outer casing in SUS304 for structural integrity and surface durability
- Dual-mode humidity control: programmable saturated vs. unsaturated HAST protocols to emulate diverse field stress profiles
- Real-time multi-parameter display: chamber temperature, relative humidity, wet-bulb temperature, absolute pressure, applied bias voltage (optional interface), and elapsed test time
- Compliant with JEDEC JESD22-A110, JESD22-A101, and IEC 60749-28 for HAST qualification testing
Sample Compatibility & Compliance
This HAST chamber supports a broad range of electronic device packages including QFN, BGA, CSP, SOIC, and leaded/leadless SMT components. It accommodates standard JEDEC trays (e.g., 330 × 280 mm), wafer carriers (up to 8-inch diameter), and custom fixtures. All internal surfaces are electropolished and passivated to prevent particulate generation and metal ion contamination. The system meets ISO 17025 laboratory environmental control requirements when operated within certified facilities. Its pressure containment design conforms to PED 2014/68/EU (Pressure Equipment Directive) Category II classification. Optional data logging modules support audit-ready records compliant with FDA 21 CFR Part 11 and GLP/GMP documentation standards—including user authentication, electronic signatures, and immutable event timestamps.
Software & Data Management
The embedded controller features a touchscreen HMI with intuitive profile programming, real-time trend plotting, and alarm history review. Optional PC-based software (Windows-compatible) provides extended functionality: remote monitoring via Ethernet/Wi-Fi, automated report generation (PDF/CSV), statistical process control (SPC) charting, and integration with MES/LIMS platforms via Modbus TCP or OPC UA. All test logs—including setpoints, actual readings, safety events, and calibration metadata—are timestamped and stored with checksum validation. Audit trails record operator ID, parameter changes, start/stop commands, and emergency interventions—ensuring full traceability for internal quality audits and external regulatory reviews.
Applications
- Qualification testing of ICs per AEC-Q100, JEDEC, and automotive OEM specifications
- Failure analysis root cause investigation for moisture-related defects (e.g., popcorning, lid lift, mold compound blistering)
- Process validation of conformal coating, underfill, and encapsulation materials
- Reliability screening during new product introduction (NPI) and lot acceptance testing (LAT)
- Comparative evaluation of package robustness across different substrate technologies (e.g., organic vs. ceramic substrates)
- Supporting FMEA development by quantifying acceleration factors (AF) under varying T/RH/P conditions
FAQ
What is the difference between HAST and standard THB testing?
HAST applies elevated pressure to increase water vapor concentration and accelerate moisture ingress—reducing test time by up to 10× versus THB at 85°C/85% RH.
Can this chamber perform unsaturated HAST?
Yes—user-selectable saturated or unsaturated modes allow precise control of dew point and partial pressure for application-specific stress profiling.
Is third-party calibration and certification available?
Yes—NIST-traceable calibration certificates and IQ/OQ documentation packages are available upon request.
What safety certifications does the system carry?
CE marking (EMC & LVD directives), RoHS compliance, and optional UL/CSA certification for North American installations.
How is pressure controlled and monitored?
Digital pressure transducer with closed-loop PID regulation; redundant mechanical relief valve set at 110% of max rated pressure.
