Title
Decomposition of drain-current variation into gain-factor and threshold voltage variations
Abstract
A predictable device models should correctly handle parameter variations. Good recognition of the variation of physical parameters, which are being the sources of current variations of modern devices, is thus significantly important. In this paper, we present a practical procedure for decomposing device current variation into physical parameter variations. Based on the I-V curve measurements, two variation components: threshold voltage variation and gain-factor variation are clearly separated. Cause of gain-factor variation is further discussed with measurement results of poly-Si resistor. The impact of the variation-sources on circuit performance is also evaluated using SRAM noise margin as an example.
Year
DOI
Venue
2010
10.1109/ISCAS.2010.5537354
Circuits and Systems
Keywords
DocType
ISSN
SRAM chips,circuit noise,elemental semiconductors,resistors,silicon,I-V curve measurements,SRAM noise margin,Si,drain-current variation decomposition,gain-factor variation,physical parameter variations,polySi resistor,predictable device models,threshold voltage variations
Conference
0271-4302
ISBN
Citations 
PageRank 
978-1-4244-5309-2
0
0.34
References 
Authors
2
4
Name
Order
Citations
PageRank
Takashi Sato18136.76
Takumi Uezono2226.63
Noriaki Nakayama3308.95
Kazuya Masu412036.37