本文介绍了大生产中超高频低噪声管的失效现象，对生产结果进行了讨论，亦提出了新的工艺方法。
The failure Phenomena of ultrahigh frequency and low noise transistor in mass production are described. The production results are discussed. Finally, the new technique are presented.
管逆变工作频率高，高效，低噪声。
V-MOS inverter high running frequency, high efficiency, low noise.
在分析常用低噪声快速光电探测器的基础上，选择pin光电二极管来探测氦氖激光纵模脉冲。
Based on analyzing common low noise and fast photodetectors, PIN photodiode is selected to detect He-Ne laser longitudinal mode pulse.
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