Title
Compact modeling of LDMOS working in the third quadrant
Abstract
This paper presents a method to model the drain current of LDMOS working in the 3rd quadrant (Vds<;0), which is important for power management IC design. The DIBL effect in 3rd quadrant is shown to be much more significant than that in 1st quadrant (Vds>0), and is not captured by the existing LDMOS models. Also, the threshold voltage model is not accurate in 3rd quadrant, where the drain-body junction is forward biased. Consequently, the existing LDMOS models underestimate the 3rd quadrant drain current in the sub-threshold region. A drain current expression taking into account these effects for the sub-threshold region is developed and added to the device model through a SPICE component bsource. The modeling accuracy of the drain current in the 3rd quadrant is significantly improved.
Year
DOI
Venue
2014
10.1109/CICC.2014.6946028
CICC
Keywords
Field
DocType
subthreshold region,drain-induced barrier lowering effect,semiconductor device models,drain-body junction,spice,power management ic design,integrated circuit modelling,simulation,power mosfet,spice component bsource,laterally diffused metal oxide semiconductor,integrated circuit design,semiconductor device modeling,mosfet circuits,third quadrant drain current,mosfet,ldmos compact modeling,threshold voltage model,dibl effect,forward bias,modeling accuracy
Quadrant (instrument),LDMOS,Power semiconductor device,Computer science,Semiconductor device modeling,Electronic engineering,Electrical engineering,Drain-induced barrier lowering
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Kejun Xia100.34
Harihara Indana200.34
Usha Gogineni300.34