HAST Chambers
Highly accelerated temperature and humidity stress testing machine
  • HAST-55
  • +105℃~+135℃
  • 65~100%RH
  • 0.05Mpa~0.3Mpa
Products introduction
The high accelerated temperature and humidity stress testing machine meets the JESD22 bias or unbiased accelerated humidity resistance test. It is used to evaluate the operation reliability of non airtight packaged IC devices (solid state equipment) under high temperature and high humidity conditions, and conduct temperature humidity bias (non bias) high accelerated stress life aging test on chips, semiconductors and other components.

Product alias: high accelerated temperature and humidity stress testing machine, temperature and humidity bias life testing machine, high accelerated temperature and humidity stress testing machine, unbiased voltage UHAST unsaturated high pressure steam testing machine, steady state humidity and heat life aging testing machine, BHAST.


Technical parameters
Model No. KM-HAST-25 KM-HAST-35 KM-HAST-40 KM-HAST-55
Inner chamber size Diameter φ25 φ35 φ40 φ55
Depth
D45 D45 D45 D65
Exterior chamber size Width
W56 W73 W75 W115
Height
H125 H163 H155 H155
Depth
D105 D110 D130 D140
Temp.range
(Saturated/Unsaturated)
105~151.4℃(100%R.H);105.0~133.3℃(100%R.H)
110.0~157.5℃(85%R.H);110.0~140.0℃(85%R.H)
118.0~162.5℃(65%R.H);118.0~150.0℃(65%R.H)
Humidity range 65% ~ 100%R.H
Pressure range
(Saturated/Unsaturated)
0.019~0.393MPa
0.019~0.208MPa
Temp. fluctuation ±0.5℃
Temp. uniformity ±0.5℃
Humidity Fluctuation ±2.0%RH
Humidity Deviation ±5.0%RH
Pressure Deviation ≤±2 kPa
Heat up rate +25℃~+135℃, The whole process takes about 45minutes on average (no load, no heat)
Boost time 0→0.196MPa,About 20min
Safety protection device a. Protection switch for heater empty burning prevention b. Heater overcurrent circuit breaker c. Overcurrent overload protection for circulating fan d. Compressor high voltage protection switch e. Compressor overheat protection switch
f. Compressor overcurrent protection switch g. Overvoltage under reverse phase protection switch h. Circuit breaker i. Leakage switch j. Zero-crossing thyristor power controller k. Water shortage protection

Product features

◎The double arc design of the inner liner can prevent condensation and water dripping during the test, so as to prevent the product from being directly impacted by superheated steam during the test.


◎The product meets JESD22-A100 to A118 bias (BHAST) or unbiased (UHAST) accelerated moisture resistance test and saturated high-pressure steam (cooking) test.


◎The product is compatible with high accelerated temperature and humidity stress HAST aging test and high-pressure cooking PCT moisture resistance test.