Formation of shallow Schottky contacts to Si using Pt-Si and Pd-Si alloy films

Abstract
A series of codeposited alloy films of Pt‐Si with a composition changing from Pt75Si25 to Pt50Si50 and of Pd‐Si changing from Pd75Si25 to Pd67Si33 have been prepared on Si for a systematic study of shallow silicide contacts. The effects of alloy composition and heat treatment on the formation and properties of these contacts have been investigated by IV measurement of Schottky barrier height, glancing incidence x‐ray diffraction, and cross‐sectional transmission electron microscopy. Shallow contacts with a depth of about 10 nm and with the Schottky barrier height of PtSi and Pd2Si have been achieved.