Title
Spatial variation decomposition via sparse regression
Abstract
In this paper, we briefly discuss the recent development of a novel sparse regression technique that aims to accurately decompose process variation into two different components: (1) spatially correlated variation, and (2) uncorrelated random variation. Such variation decomposition is important to identify systematic variation patterns at wafer and/or chip level for process modeling, control and diagnosis. We demonstrate that the spatially correlated variation can be accurately represented by the linear combination of a small number of “templates”. Based upon this observation, an efficient algorithm is developed to accurately separate spatially correlated variation from uncorrelated random variation. Several examples based on silicon measurement data demonstrate that the aforementioned sparse regression technique can capture systematic variation patterns with high accuracy.
Year
DOI
Venue
2012
10.1109/ICICDT.2012.6232875
ICICDT
Keywords
Field
DocType
regression analysis,semiconductor technology,chip level,correlated variation,process modeling,process variation,silicon measurement data,sparse regression technique,spatial variation decomposition,systematic variation pattern,uncorrelated random variation,integrated circuit,variation decomposition
Data mining,Computer science,Spatial variability,Interconnection,Sparse regression
Conference
ISSN
ISBN
Citations 
pending E-ISBN : 978-1-4673-0144-2
978-1-4673-0144-2
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Wangyang Zhang11389.98
karthik balakrishnan200.68
Xin Li353060.02
emrah acar400.34
f liu500.34
Rob A. Rutenbar62283280.48
Duane Boning720149.37