Description: We are increasing the demand for processing speed, along with this growth, the transistors used to build the single-chip size continues to decrease. Lower cost to achieve higher integration, but also promoted the geometry of a smaller demand. As the size decreases, the transistor breakdown voltage becomes lower, and ultimately, when the breakdown voltage below the supply voltage, then reduce the supply voltage requirements. Thus, with the speed and complexity of the increase, for high-density devices, the inevitable consequence is that the power supply voltage from 5V to 3.3V, or 1.8V.
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