Patent ID: 8461907
Filing Date: 2013-06-11
Classification: G11C,H01L

Abstract:
1. A semiconductor device, comprising: a first unit including a first input terminal and a second input terminal; a second unit including a third input terminal and a fourth input terminal; a first wire connected to the first input terminal and the third input terminal; a second wire connected to the second input terminal and the fourth input terminal; a first resistor connected at a first end to the first wire; a second resistor connected at a first end to the second wire; a first fuse connected to the first wire; and a second fuse connected to the second wire, wherein both the first fuse and the second fuse are blown, the first unit outputs a first signal if both the first fuse and the second fuse are blown, the first unit outputs a second signal if neither the first fuse nor the second fuse is blown or if one of the first fuse and the second fuse is not blown, the second signal is at a different level from the first signal, the second unit outputs a third signal if both the first fuse and the second fuse are blown or if one of the first fuse and the second fuse is blown, the second unit outputs a fourth signal if neither the first fuse nor the second fuse is blown, and the fourth signal is at a different level from the third signal.