Examination of Impact of NBTIs on Commercial Power P-Channel VDMOS Transistors in Practical Applications
Danijel Danković, Emilija Živanović, Nevena Veselinović, Dunja Đorđević, Marija Petrović, Lana Tasić, Miloš Marjanović, Sandra Veljković, Nikola Mitrović, Vojkan Davidović, Goran Ristić
TL;DR
This paper studies how negative bias temperature instabilities affect the performance and reliability of power p-channel VDMOS transistors in real-world applications.
Contribution
The study experimentally evaluates the practical impact of NBTI on circuit performance and self-heating in commercial power transistors.
Findings
NBTI-induced threshold voltage shift increases self-heating in load-driving circuits.
NBTI affects transfer and dynamic characteristics in CMOS inverters.
Abstract
In this paper, the impact of negative bias temperature instabilities (NBTIs) on commercial power p-channel Vertical Double-Diffused MOS (VDMOS) transistors from the standpoint of practical applications was analyzed. The effects of NBTI are one of the main reliability concerns for this type of device, so it is necessary to investigate how these effects influence various applications. A series of experiments were carried out including negative bias temperature stressing, infra-red thermographic recording and circuit characterization, with the goal of evaluating the effects of negative bias temperature stressing on the self-heating of samples in load-driving circuits operating with higher currents and circuit performance of a CMOS inverter circuit containing the examined samples. The findings suggest that negative bias temperature stressing-induced threshold voltage shift directly affects…
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Taxonomy
TopicsSilicon Carbide Semiconductor Technologies · Advancements in Semiconductor Devices and Circuit Design · Semiconductor materials and devices