阻抗场与低信号噪声
1. 引言
低信号电气噪声不可避免,其成因在于器件内部过程的随机波动,例如热波动导致的载流子密度微观变化,以及产生-复合速率的统计波动。 此类噪声可能干扰电路预期行为,因此建模器件产生的噪声至关重要。了解噪声在器件中的具体产生位置亦具有重要意义,这有助于设计低噪声器件。Victory Device采用阻抗场法进行噪声计算。
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