Current limiting integrated circuit

Claim 1

A current limiting device comprising: a laminate having first, second and third layers, said first and third layers being of a first conductivity type and said second layer being of a second conductivity type and contiguous with said first layer; a plurality of first, second and third elements contiguous with each other interposed between said second and third layers, said first and second elements being contiguous with said third layer and one being of said second conductivity type, said second and third elements being interposed between said first element and said second layer, said third element being contiguous with said second layer and of said first conductivity type; an insulator contiguously interposed between said second layer and both said third layer and said second element; whereby said first and second layers form collector and base electrodes, respectively, for a multi-emitter transistor, said third layer forms a common source electrode for each of a plurality of field effect transistors, said first and second elements form current channels and gates, respectively, of said field effect transistors, and said third elements commonly form drains of said field effect transistors and emitters of said multi-emitter transistor.