# Effect of base doping on early voltage,base transport factor and emitter injection efficiency?

According to me as base doping increases recombination will be less at base region so base transport factor and emitter injection efficiency will increase and as effective base width will decrease due to less doping at the base region so early voltage will decrease. am I thinking right? No options is matching.

• Why does MORE base doping reduce the base recombination? – analogsystemsrf Feb 1 '19 at 15:26

$$\text{as } \quad N_B \downarrow \quad \to \quad \gamma \text{ (Emitter Injection Efficiency) } \uparrow \quad, \quad \beta^{*} \,\, \uparrow \,\,\& \,\,|V_A| \,\,\downarrow$$