Patent ID: 6777734
Filing Date: 2004-08-17
Classification: H01L

Abstract:
A structure of a static random access memory (SRAM) having an asymmetric silicide layer, wherein the SRAM is provided with transfer transistors and actuating transistors, the structure comprising:a semiconductor substrate provided with a lower structure with a predetermined configuration; a gate insulating layer and gate electrodes of the transfer transistors and the actuating transistors formed on the semiconductor substrate spaced at a predetermined distance; a spacer formed on side walls of the gate electrodes of the transfer transistors and the actuating transistors, respectively; source/drain electrodes of the transfer transistors and the actuating transistors implanted into a portion of the semiconductor substrate placed between the gate electrodes; a silicide blocking layer formed on a top of a region of the transfer transistors and a silicide layer formed on a top of the gate electrodes of the actuating transistors and surface of the source/drain electrodes.