| 摘要 |
The present invention is to provide an improved surge protector device and its fabricating method. The present invention's surge protector device basically comprises: a plurality of metal bars which are combined to a single body by a continuous high-resistive film of semiconductor crystal so that there is no gap between adjacent metal bars; and electrodes formed on the endmembers of said metal bars composing the single body. Thus, the present invention's surge protector device is fabricated so as to have no air gap between adjacent ones of the metal bars. As a result, the present invention's protector device can operate in such a way that the surge protector device changes from a non-conductive state to a conductive state due to breakdown in depletion region accompanying the semiconductor crystal when the voltage across the electrodes exceeds a threshold voltage because of a surge. And, the present invention's device fabricating method comprises: a first oxidization step for oxidizing a plurality of metal bars keeping them in contact so that said metal bars are combined to a single body without any gap between adjacent ones of said metal bars by a continuous single high-resistive film of semiconductor crystal; and a second oxidization step for oxidizing said metal bars combined to said single body so that a high-resistive film is formed on the whole surface of said single body composed of said metal bars. |
