Regardless of type NPN or PNP-type tubes, the internal transistor has three areas, namely, the launch area, base, collector area, the three areas form two PN junction.
无论npn型还是PNP型管，三极管内部均有三个区、即发射区、基区、集电区，三个区形成两个PN结。
2
There are two limitations on the power handling ability of a transistor: average junction temperature and second breakdown.
有两个限制了晶体管的处理能力，功耗：平均交界处的温度和二次击穿。
3
In order to comprehend schottky gate of organic static induction transistor, chapter two expatiates characteristics of PN junction and schottky junction.