Characterization of MOS Transistor Current Mismatch

Klimach, H - Arnaud, Alfredo - Schneider, M. C - Galup Montoro, Carlos

Resumen:

Electron device matching has been a key factor on the performance of today’s analog or even digital electronic circuits. This paper presents a study of drain current matching in MOS transistors. CMOS test structures were designed and fabricated as a way to develop an extensive experimental work, where current mismatch was measured under a wide range of bias conditions. A model for MOS transistor mismatch was also developed, using the carrier number fluctuation theory to account for the effects of local doping fluctuations. This model shows a good fitting with measurements over a wide range of operation conditions, from weak to strong inversion, from linear to saturation region, and allows the assessment of mismatch from process and geometric parameters.


Detalles Bibliográficos
2004
MOSFET
Analog design
Matching
Mismatch
Compact models
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/21287
Acceso abierto