DocumentCode
704353
Title
Salicidation Processes and CoSi2 Resistance Study
Author
Lifang Xu ; Shafi, Alan ; Meldrim, Mark ; Zengtao Liu ; Yudong Kim ; Rangaraju, Nikhil
Author_Institution
Micron Technol., Boise, ID, USA
fYear
2015
fDate
20-20 March 2015
Firstpage
1
Lastpage
3
Abstract
The effect of multiple Si processes on the intrinsic sheet resistance of CoSi2 resistors is investigated in this article. It is discovered that CoSi2 intrinsic sheet resistance is not a simple function of the CoSi thickness, but rather depends on many other factors including CD related poly grain size, the mushroom effect, diffusion of As implant during silicidation anneal, and the existence of Ti-Under layer. The findings of this study provided an accurate and stable resistance control on Silicided poly resistor applications.
Keywords
annealing; cobalt compounds; diffusion; electrical resistivity; grain size; ion implantation; resistors; semiconductor materials; semiconductor thin films; CoSi2; annealing; diffusion; intrinsic sheet resistance; mushroom effect; polygrain size; salicidation processes; titanium-underlayer; Annealing; Films; Implants; Resistance; Resistors; Silicides; Silicon;
fLanguage
English
Publisher
ieee
Conference_Titel
Microelectronics and Electron Devices (WMED), 2015 IEEE Workshop on
Conference_Location
Boise, ID
ISSN
1947-3834
Print_ISBN
978-1-4799-7644-7
Type
conf
DOI
10.1109/WMED.2015.7093687
Filename
7093687
Link To Document