SEMICONDUCTOR INTEGRATED CIRCUIT APPARATUS HAVING LOCAL BIT LINE SENSE AMPLIFICATION

摘要

PURPOSE: A semiconductor integrated circuit device including a local bit line sense amplifier is provided to reduce the area of the local bit line sense amplifier by changing a channel direction of an enhanced transistor. CONSTITUTION: A main sense amplifier(130) amplifies a voltage difference of a bit line pair by sensing the voltage difference of the bit line pair. A local bit line sense amplifier(150) is electrically connected to the main sense amplifier and increases a sensing speed. A first transistor is electrically connected to a bit line bar and a channel is formed in parallel to a bit line. A second transistor is electrically connected to the bit line and a channel is formed in parallel to the bit line. A third transistor is driven in response to a signal of the bit line and is electrically connected to the first transistor. A fourth transistor is driven in response to a signal of a bit line bar.