Title
Application Of Microwave Photoconductivity Decay Method To Characterization Of Amorphous In-Ga-Zn-O Films
Abstract
Microwave photoconductivity decay (mu-PCD) method was applied to evaluate the effects of chemical composition and Ar+ plasma induced damage on the bulk and the surface states in amorphous In-Ga-Zn-O (a-IGZO) films. It was found that the peak reflectivity signal in the photoconductivity response increased with decreasing the Ga content, and had a strong correlation with the a-IGZO transistor performances. In addition, the peak reflectivity signals obtained after various Ar+ plasma treatment duration were well correlated with the transistor characteristics. With Ar+ plasma treatment, the peak reflectivity signal decreased in accordance with degradation of transistor characteristics. The mu-PCD method was found to be a very useful tool not only to evaluate the bulk and the surface states, but also to predict the performance of a-IGZO transistors subjected to various plasma processes in the production.
Year
DOI
Venue
2012
10.1587/transele.E95.C.1724
IEICE TRANSACTIONS ON ELECTRONICS
Keywords
Field
DocType
microwave photoconductivity decay, a-IGZO, oxide semiconductor, photoconductivity response
Chemical composition,Microwave,Photoconductivity,Electronic engineering,Degradation (geology),Plasma,Engineering,Transistor,Surface states,Amorphous solid
Journal
Volume
Issue
ISSN
E95C
11
1745-1353
Citations 
PageRank 
References 
0
0.34
0
Authors
7
Name
Order
Citations
PageRank
Satoshi Yasuno100.34
Takashi Kita200.34
Shinya Morita300.34
Aya Hino400.34
Kazushi Hayashi521.15
Toshihiro Kugimiya601.01
Shingo Sumie700.34