Article ID Journal Published Year Pages File Type
549270 Microelectronics Reliability 2012 6 Pages PDF
Abstract

A comparative investigation of high-energy neutrons effect on strained and non-strained devices with different geometries is presented. Both single-gate planar and multiple-gate (MuG) silicon-on-insulator (SOI) devices are considered. Device response to the neutron irradiation is assessed through the variations of threshold voltage and transconductance maximum. The difference between strained and non-strained device response to the high-energy neutrons exposure is clearly evidenced. The reasons for such a difference are discussed. Analysis of the experimental results allows for suggesting that strain relaxation is one of the probable causes.

► High-energy neutrons effect on strained and non-strained FD SOI MOSFETs and MuGFETs. ► Device response to the neutrons is assessed through the variations of VT and Gmmax. ► Neutron-induced total-dose effects in strained and non-strained device are different. ► Strain relaxation under neutrons exposure is one of the reasons of such a difference. ► Difference in the space charge conditions at the Si-BOX interface is another reason.

Related Topics
Physical Sciences and Engineering Computer Science Hardware and Architecture
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