Patent ID: 6535417
Filing Date: 2003-03-18
Classification: G11C

Abstract:
A semiconductor storage device comprising:a first MOS transistor, which is of an N-channel type, having a source connected to a ground line; a second MOS transistor, which is of an N-channel type, having a source connected to a ground line, a drain connected to a gate of said first MOS transistor and its connection point being a first node, and a gate connected to a drain of said first MOS transistor and its connection point being a second node; a third MOS transistor, which is either of an N-channel type MOS transistor or a P-channel type MOS transistor, having a gate connected to said first node, and at least one of a source and a drain being in an open state; a fourth MOS transistor, which is either of an N-channel type MOS transistor or a P-channel type MOS transistor, having a gate connected to said second node, and at least one of a source and a drain being in an open state; a fifth MOS transistor, which is of a P-channel type, having a source connected to a power-supply line, a drain connected to the drain of said first MOS transistor, and a gate connected to the gate of said first MOS transistor; and a sixth MOS transistor, which is of a P-channel type, having a source connected to a power-supply line, a drain connected to the drain of said second MOS transistor, and a gate connected to the gate of said second MOS transistor.