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The first Transistor

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<strong>The</strong> avalanche breakdown in a transistor<br />

[B. G. Streetman and S. Banerjee, Solid State Electronic Devices, Prentice Hall, 2000]<br />

52<br />

Carrier multiplication and feedback mechanism<br />

[R. F. Robert, Semiconductor Device Fundamentals, Addison Wesely, 1996]<br />

0: initial hole injection<br />

1: injected hole entering the CB<br />

depletion junction<br />

2: e-h pair generation by impact ionization<br />

3: generated electrons being swept<br />

into the vase<br />

4: excess base electrons injected<br />

into the emitter<br />

5: hole injected from the emitter<br />

into the base in response to the<br />

step 4 electron injection<br />

53<br />

26

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