The simulation results show that the emitter injection is easier to burnout the BJT than the collector injection, and the base injection is relatively difficult.

发射极注入最容易导致烧毁，集电极注入次之，基极注入相对不易导致烧毁；

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A new theory about minority carrier injection into polysilicon emitter has been proposed in this paper.

本文提出了一种新的多晶硅发射区少数载流子注入理论。

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Analyze the structure of the drip-emitter, get the best parameters of the injection molding, obtain the parts with good quality.

通过对滴灌灌水器产品结构的分析，确定合理的注塑工艺参数，制得各项性能均良好的滴灌灌水器产品。

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