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肖特基势垒二极管（SBD）金属的差异
下载“第Ⅱ章：二极管” (PDF:895KB)
对于SBD而言，半导体由n型层组成，因此金属充当二极管的阳极。同样地，只有电子是载流子，SBD变成了类似MOSFET的单极元件。
硅的能级不同于金属（能隙）。该能级因金属元素而异。符号ΦB用于表示不同的能隙。Pt（铂）是一种具有大能隙的金属。V（钒）或Ti（钛）是具有小能隙的金属。采用ΦB大的金属，泄漏电流小，但是正向电压VF大。采用ΦB小的金属，则情况相反。
