The highly accelerated stress test (HAST) method was first proposed by Jeffrey E. Gunn, Sushil K. Malik, and Purabi M. Mazumdar of IBM. The acceleration factor for elevated humidity is empirically derived to be is a value which normally goes from 0.1 to 0.15 where RHs is the stressed humidity, RHo is the operating-environment humidity, and n is an empirically derived constant (usually 1 < n < 5). the acceleration factor for elevated temperature is derived to be therefore the total acceleration factor for unbiased hast testing is
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| - Highly accelerated stress test (en)
- 高加速应力测试 (zh)
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| - 高加速应力测试(HAST)的方法是由 Jeffrey E. Gunn, Sushil K. Malik 和 Purabi M. Mazumdar 首先提出的。 湿度加速因子由下式计算 其中 RHs 是加速状态相对湿度,RHo 是工作环境相对湿度,n 是一个经验得出的常数(一般1< n <5). 温度加速因子由下式计算 其中Ea 是活化能(电子产品通常是 0.7eV), k 是玻尔兹曼常数, To 是以开尔文为单位的工作温度,Ts 是加速状态温度。 无偏压高加速应力测试的总加速因子是 (zh)
- The highly accelerated stress test (HAST) method was first proposed by Jeffrey E. Gunn, Sushil K. Malik, and Purabi M. Mazumdar of IBM. The acceleration factor for elevated humidity is empirically derived to be is a value which normally goes from 0.1 to 0.15 where RHs is the stressed humidity, RHo is the operating-environment humidity, and n is an empirically derived constant (usually 1 < n < 5). The acceleration factor for elevated temperature is derived to be Therefore the total acceleration factor for unbiased HAST testing is (en)
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| - The highly accelerated stress test (HAST) method was first proposed by Jeffrey E. Gunn, Sushil K. Malik, and Purabi M. Mazumdar of IBM. The acceleration factor for elevated humidity is empirically derived to be is a value which normally goes from 0.1 to 0.15 where RHs is the stressed humidity, RHo is the operating-environment humidity, and n is an empirically derived constant (usually 1 < n < 5). The acceleration factor for elevated temperature is derived to be where Ea is the activation energy for the temperature-induced failure (most often 0.7 eV for electronics), k is the Boltzmann constant, To is the operating temperature in kelvins, and Ts is the stressed temperature. Therefore the total acceleration factor for unbiased HAST testing is (en)
- 高加速应力测试(HAST)的方法是由 Jeffrey E. Gunn, Sushil K. Malik 和 Purabi M. Mazumdar 首先提出的。 湿度加速因子由下式计算 其中 RHs 是加速状态相对湿度,RHo 是工作环境相对湿度,n 是一个经验得出的常数(一般1< n <5). 温度加速因子由下式计算 其中Ea 是活化能(电子产品通常是 0.7eV), k 是玻尔兹曼常数, To 是以开尔文为单位的工作温度,Ts 是加速状态温度。 无偏压高加速应力测试的总加速因子是 (zh)
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