Patent ID: 7030042

Claim:
A method of forming a tantalum oxide layer on a substrate, the method comprising: providing a substrate; providing a vapor comprising one or more precursor compounds of the formula Ta(OR 1 ) x (O—R 2 —OR 3 ) y (Formula I), wherein each R is an organic group, x=3-4, and y=1-2; providing one or more sources of a reaction gas; and directing the one or more vaporized precursor compounds and the one or more reaction gases to the substrate to form a tantalum oxide layer on one or more surfaces of the substrate; wherein Ta(OR 1 ) x (O—R 2 —OR 3 ) y is selected from the group consisting of Ta(OEt) 4 (OCH 2 CH 2 O i Pr), Ta(OMe) 4 (OCH 2 CH 2 O i Pr), and combinations thereof, wherein Me=methyl, Et=ethyl, and i Pr=isopropyl; wherein providing the vapor comprising the one or more precursor compounds and directing the one or more precursor compounds and the one or more reaction gases is accomplished using an atomic layer deposition process comprising a plurality of deposition cycles.