DocumentCode :
1337855
Title :
Unusual C V Characteristics of High-Resistivity SOI Wafers
Author :
Nayak, P. ; Seacrist, M. ; Schroder, D.K.
Author_Institution :
Sch. of Electr., Comput. & Energy Eng., Arizona State Univ., Tempe, AZ, USA
Volume :
32
Issue :
12
fYear :
2011
Firstpage :
1659
Lastpage :
1661
Abstract :
The maximum capacitance for bulk or Silicon on Insulator (SOI) wafers is governed by the gate/contact area. During our capacitance-voltage (C-V) characterization of high-resistivity SOI wafers with Al contacts directly on the Si film, we observed the maximum capacitance to be much higher than that due to the contact area, suggesting bias spreading due to the distributed transmission line of the film resistance and buried oxide capacitance. In addition, an “S”-shape C-V plot was observed in the accumulation region.
Keywords :
electrical contacts; silicon-on-insulator; S-shape C-V plot; buried oxide capacitance; capacitance-voltage characterization; distributed transmission line; film resistance; gate-contact area; high-resistivity SOI wafers; silicon on insulator wafers; Area measurement; Capacitance; Doping; Logic gates; Silicon; Silicon on insulator technology; Substrates; $C$$V$ characteristics; Bias spreading; high-resistivity SOI (HRS); low-pass filter effect; transmission-line effect;
fLanguage :
English
Journal_Title :
Electron Device Letters, IEEE
Publisher :
ieee
ISSN :
0741-3106
Type :
jour
DOI :
10.1109/LED.2011.2167651
Filename :
6032710
Link To Document :
بازگشت