Patent ID: 7829930

Claim:
A semiconductor device, comprising: a first electrode formed on a semiconductor substrate; a second electrode formed on the semiconductor substrate so as to face the first electrode; and a laminated film formed between the first and second electrodes and consisting of at least two stacked solid electrolytic layers of which components differ from each other, wherein the first electrode includes a metal to be diffused in the solid electrolytic layer so as to form a low resistance conductive path therein; wherein the solid electrolytic laminated film is formed so that the mobility of the solid electrolytic layer closer to the first electrode with respect to the metal becomes higher than that of the solid electrolytic layer closer to the second electrode with respect to the metal, wherein the device includes a plurality of pairs of the first and second electrodes, wherein the low resistance conductive path has an angle deviated from a direction in which the pair of first and second electrodes are connected to each other at least in its middle portion, wherein the device includes a plurality of said low resistance conductive paths, wherein the device further includes means that switches or branches one of said low resistance conductive paths to another of said low resistance conductive paths having a different angle, and wherein the switching means is provided in each solid electrolytic layer and has a pair of electrodes that are disposed so as to sandwich a conductor path therebetween.