Lk. Bera et al., Determination of density and distribution of high-voltage stress-induced traps in O-2-, NO- and NO/O-2/NO-plasma grown oxides on strained Si, SOL ST ELEC, 45(3), 2001, pp. 379-383
High quality ultrathin (< 75 Angstrom) oxide and oxynitride films prepared
by microwave O-2- and NO-plasma on strained Si (on fully relaxed SiGe buffe
r) have been investigated for the determination of trap charge density and
distribution using high voltage pulse stressing measurements. The transient
current and trap charge distribution in O-2-plasma treated films are compa
red with NO- and NO/O-2/NO-plasma grown dielectric films. It has been obser
ved that the initial value of trap density for NO/O-2/NO-plasma grown diele
ctrics is lower than for NO- and O-2-plasma treated samples. (C) 2001 Elsev
ier Science Ltd. All rights reserved.