Patent ID: 6744661
Filing Date: 2004-06-01
Classification: G11C

Abstract:
A radiation-hardened static memory cell, comprising:a first inverter having a first N-channel Metal Oxide Semiconductor (NMOS) device and a first P-channel MOS (PMOS) device, with a first isolation device disposed therebetween; a second inverter having a second NMOS device and a second PMOS device, with a second isolation device disposed therebetween, said first and second inverters being cross-coupled together to form a pair of data storage nodes therein, wherein a first data storage node is formed at a coupling between said first PMOS device and said first isolation device and a second data storage node is formed at a coupling between said second PMOS device and said second isolation device, said first and second isolation devices operating to be biased at a predetermined level, and a first access device coupled to said first data storage node and a second access device coupled to said second data storage node, said first and second data storage nodes operating to hold two complementary data values.