SEMICONDUCTOR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a semiconductor device equipped with a normally operating surge protecting circuit. SOLUTION: This semiconductor device is provided with a surge protecting circuit 51 electrically connected to a signal input terminal 34, and equipped with an npn transistor 32 and an npn transistor 33. The narrowest area of the base of the npn transistor 32 is configured to have a width different from that of the narrowest area of the base of the npn transistor 33. Thus, the npn transistor 32 is configured to more easily yield than the npn transistor 33. COPYRIGHT: (C)2004,JPO&NCIPI