Patent ID: 8509002
Filing Date: 2013-08-13
Classification: G11C

Abstract:
1. A semiconductor memory device comprising: a sense amplifier comprising a pair of transistors cross-coupled between a bit line and a complementary bit line; and a voltage supply circuit comprising at least two transistors, and configured to supply at least one source voltage having a level different than a target source voltage to a common source of the pair of transistors and then to supply the target source voltage to the common source during data sensing of the sense amplifier, wherein that at least two transistors comprise a first transistor and a second transistor, and wherein a first end of the first transistor is connected to the common source and the at least one source voltage is supplied to a second end of the first transistor, and a first end of the second transistor is connected to the common source and the target source voltage is supplied to a second end of the second transistor.