SEMICONDUCTOR MEMORY DEVICE AND BODY BIAS METHOD THEREOF

摘要

A semiconductor memory device is provided which includes a function block including a plurality of transistors; a body bias control unit configured to detect a command and to generate a body bias selection signal according to the detection result; and a body bias generator configured to generate a body voltage according to the body bias selection signal and to provide the body voltage to bodies of the plurality of transistors, wherein the body bias generator down-converts a power supply voltage supplied from an external device to generate the body voltage.

主权项

1. A semiconductor device, comprising:
a memory device having a plurality of transistors supplied with a first power supply voltage; a body bias control unit configured to detect a command and to generate a body bias selection signal; and a body bias voltage generator supplied with a second power supply voltage, the body bias voltage generator configured to generate a plurality of body bias voltages to body bias the plurality of transistors according to the body bias selection signal, wherein the second power supply voltage is at a higher voltage level than the first power supply voltage.