학술논문

An easily integrable NiSi TOSI-gate/SiON-module for LP SRAM applications based on a single step silicidation of gate and junction
Document Type
Conference
Source
IEEE InternationalElectron Devices Meeting, 2005. IEDM Technical Digest. International Electron Devices Meeting 2005 Electron Devices Meeting, 2005. IEDM Technical Digest. IEEE International. :626-629 2005
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Random access memory
Silicidation
Epitaxial growth
Electrodes
Morphology
Contamination
Iron
Ion implantation
Impurities
CMOS technology
Language
ISSN
0163-1918
2156-017X
Abstract
In this paper, we present a CMOS NiSi totally silicided (TOSI)-gate on SiON module, based on a single step silicidation of the junctions and the total gate, and demonstrate its industrial feasibility on SRAM demonstrators. The single step silicidation is achieved by the use of an ultra-low initial Si gate electrode and selective S/D epitaxy, which allows us to avoid any additional CMP step. We show excellent transistor morphology, good device results and first functional NiSi TOSI-gate SRAMs in a state-of-the-art industrial cell size indicating the potential of our TOSI integration module for LP applications