Patent ID: 8242029

Claim:
A method for manufacturing a nanolaminate, wherein said nanolaminate comprises a number of alternating atomic layer deposition-deposited layers of silicon dioxide and a metal oxide, and wherein said nanolaminate has a desired wet etch rate with respect to an etchant, the method comprising: choosing the desired wet etch rate for the nanolaminate to be manufactured; determining, from a predetermined relation between wet etch rates of atomic layer deposition-deposited silicon dioxide/metal oxide-nanolaminates and their compositional ratios, what compositional ratio of silicon dioxide and said metal oxide is required to obtain a nanolaminate with the desired wet etch rate; and manufacturing the nanolaminate with the determined compositional ratio, said manufacturing comprising: A: depositing a first number of silicon dioxide monolayers so as to form a silicon dioxide layer; B: depositing a second number of metal oxide monolayers so as to form a metal oxide layer; and repeating the steps A and B—if desired with different first and second numbers—until a desired nanolaminate thickness is achieved, wherein the desired wet etch rate of the nanolaminate is either greater than a greatest or smaller than a smallest of a wet etch rate of a film of said nanolaminate-constituting silicon dioxide and a wet etch rate of a film of said nanolaminate-constituting metal oxide in said etchant.