Experimental validation of self-heating simulations and projections for transistors in deeply scaled nodes

Abstract

CMOS device improvements have recently been achieved by changing the geometry of the device from planar to fully-depleted (FD) FinFET. Also FD SOI (Silicon-on-Isolator) devices have emerged as a candidate for replacing bulk silicon in ULSI applications in future technology nodes. Along with this scaling comes, however, a challenging penalty: device self-heating. In this study, i) we propose a unique measurement technique for self-heating and use it to assess self-heating in planar devices, ii) we compare and verify these results with finite-element simulations and iii) we provide perspectives for upcoming FinFET nodes.