Abstract of the Disclosure

An integrated semiconductor device including at least one first vertical-type junction field effect transistor (vertical JFET) having a triode-like unsaturated voltage-current characteristic and at least one second vertical JFET having a bipolar-transistor-like saturated voltage-current characteristic, both being integrally formed in a semiconductor body. Both the first and second vertical JFET are much similar in general arrangement to each other, thus allowing simultaneous forming thereof by the same manufacturing process, without sacrificing the good characteristics of these two types of transistors.

• a diagrammatic vertical section of an example of an integrated semiconductor device according to the present invention.

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