Yttrium oxide/silicon dioxide: a new dielectric structure for VLSI/ULSI circuits

Abstract
Electrical characteristics of Al/yttrium oxide ( approximately 260 AA)/silicon dioxide ( approximately 40 AA)/Si and Al/yttrium oxide ( approximately 260 AA)/Si structures are described. The Al/Y/sub 2/O/sub 3//SiO/sub 2//Si (MYOS) and Al/Y/sub 2/O/sub 3//Si (MYS) capacitors show very well-behaved I-V characteristics with leakage current density