학술논문

Dual stress liner for high performance sub-45nm gate length SOI CMOS manufacturing
Document Type
Conference
Source
IEDM Technical Digest. IEEE International Electron Devices Meeting, 2004. Electron devices meeting Electron Devices Meeting, 2004. IEDM Technical Digest. IEEE International. :1075-1077 2004
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Manufacturing
DSL
Compressive stress
Tensile stress
Silicon germanium
Germanium silicon alloys
Inverters
Ring oscillators
Delay
Microprocessors
Language
Abstract
For the first time, tensile and compressively stressed nitride contact liners have been simultaneously incorporated into a high performance CMOS flow. This dual stress liner (DSL) approach results in NFET/PFET effective drive current enhancement of 15%/32% and saturated drive current enhancement of 11%/20%. Significant hole mobility enhancement of 60% is achieved without using SiGe. Inverter ring oscillator delay is reduced by 24% with DSL. Overall yield for the DSL process is comparable to that of a similar technology without DSL. Single and multi-core SOI microprocessors are being manufactured using the DSL process in multiple, high-volume fabrication facilities.