Bipolar transistor has heterojunction insensitive to the variation of the external temperature and the associated circuit integrated.

摘要

The present invention relates to the stabilization of the behavior in particular in the case of the microwave applications, analog or digital, as a function of the external temperature of operation of the bipolar heterojunction transistor. It also relates to an integrated circuit. & br / according to the invention, the transistor (6) is polarized (dc) continuously by its base by means of a stabilising resistor (5), whereas the signal to be amplified (rf) is transmitted to the base by means of a capacitor (4). br / the transistor of the invention is compensated for directly internally during its manufacture. The integrated circuits which contain it is therefore no need for devices outside temperature regulation. There is no need to take account of variations of ambient temperature during their design.