  Electrical breakdown of a dielectric nanolayer between film electrodes under
the combined action of direct current and capacitor discharge current makes it
possible to form Josephson bridges with a reproducible resistance exceeding 1
{\Omega}. A new feature of the formation of a bridge during electrical
breakdown, which is preceded by a series of preliminary breakdowns (auto
breakdowns) of a dielectric nanolayer, has been discovered. The mechanism of
the process and the role of the thickness of the cathode film in the formation
of the bridge are discussed.
