PLANAR TYPE TRIAC DEVICE AND METHOD FOR FABRICATING THE SAME

摘要

PURPOSE: A planar type TRIAC(Triode AC Switch) device and a method for fabricating the same are provided to perform the operating mode 4 by improving a characteristic of a gate trigger. CONSTITUTION: The first and the second base regions(12,12a) of P type are formed on both sides of an N type silicon substrate(10). The first and the second conductive layers(14',14a') as two N type dopant layers are formed on the first base region(12). The third conductive layer(15) as one N type dopant layer is formed on the second base region(12a). The first main electrode and a gate electrode(G) are formed on upper portions of the first conductive layer(14') and the third conductive layer(15) in order to cover a surface of the first base region(12). The second gate electrode(T2) is formed on the second conductive layer(14a') in order to cover a whole surface of the second base region(12a).