US Patent 7408823 Semiconductor device and method thereof

A semiconductor device and method thereof. The semiconductor device may include a protection unit receiving an input signal and outputting a switching control signal based on the received input signal, the received input signal indicating an operating mode of a controller and a switching device receiving the switching control signal, the switching control signal setting an operating status of the switching device, the operating status of the switching device controlling a connection between the controller and an operating device (e.g., an e-fuse). In an example, the switching device may be controlled such that the operating device may be protected from voltage irregularies output by the controller.