| Abstract |
An investigation of the dependence of advanced, small-geometry power BJTs' performances upon the geometrical parameters of the elementary cell is carried out. It is shown that, as the emitter window is shrunk, the switching
properties are enhanced and the on-state characteristic are degraded, thus
imposing a trade-off between static and dynamic performances. A reduction
in the base width, on the other side, corresponds to an improvement both of
$teady-state and transient characteristics, provided that the base contact is not too close to the emitter window. Both numerical and expeJ:imental results are presented . |
