(1)多子通过EB(发射结注入B区 返回 经EB结 EB结正偏匡区多子(电子) 注入B区→in 扩散 B区多子(空穴)→注入匡区→iP 注意:(n)注入B区的电子是B区的非平衡少数载流子 E注入匡区的空穴是E区的非平衡少数载流子 所以 E en Ep sven 因为 NTP i>i) C b 88 b C EP e B LE所以 i E = ie n +i EP≈ien (因为 N+ P ie n >>iEP) (1) 多子通过EB(发射)结注入B区 EB 结正偏 E 区多子（电子） 注入 B 区→ien B 区多子（空穴）→注入 E 区→iE P 经 EB 结 扩散 注意：（ie n）注入 B 区的电子是 B 区的非平衡少数载流子 (iE P )注入 E 区的空穴是 E 区的非平衡少数载流子 EB EC RC b Rb c e iEP ib1 icn1 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ien iE 返回