Towards a Modeling Synthesis of Two or Three-Dimensional Circuits Through Substrate Coupling and Interconnections: Noises and Parasites


Christian Gontrand

DOI: 10.2174/97816080582661140101
eISBN: 978-1-60805-826-6, 2014
ISBN: 978-1-60805-827-3

Indexed in: EBSCO.

The number of transistors in integrated circuits doubles every two years, as stipulated by Moore’s law, and this has been the driving ...[view complete introduction]
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Defects in Microwave Devices

- Pp. 111-141 (31)

Christian Gontrand


The electric performances of devices such as MOS or SiGe HBT, specified for analog and analog-digital circuits and working in the radiofrequency range, can be penalized by the presence of defects inherent to the complex structure shrinking. This work is focused on the identification of defects responsible for the current fluctuations at the origin of low frequency noise (LFN) or Random Telegraphic Signals in industrial submicronic BiCMOS technologies. For instance, Gummel characteristics are simulated in order to identify generation-recombination or trap assisted tunnelling process in the base current. </p><p> From theoretical point of view, numerical method for analysing heterostructure semiconductor devices is described. Simulations and modeling both have to be performed and followed by electrical parameter extraction. Often, this noise can be very inconvenient since, from non-linearities, it is cumbersome for circuits, systems, working with such devices in the radiofrequency range. It is worth noticing that LFN characterization is not only a useful tool to analyze complex devices, but it seems indispensable at circuit and system level.

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