Patent ID: 11955312
Assignee: MATERIALS ANALYSIS TECHNOLOGY INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC H

Claim 26:
27. The physical analysis method according to claim 19, wherein the contrast enhancement layer is formed by an atomic layer deposition process, and the atomic layer deposition process includes:
placing the sample to be inspected in a film deposition chamber;
sequentially introducing a precursor containing a first element, a purge gas, and a first reactant gas into the film deposition chamber so as to form one of a plurality of first material layers, and sequentially evacuating the precursor containing the first element, the purge gas, and the first reactant gas from the film deposition chamber;
sequentially introducing a precursor containing a second element, the purge gas, and a second reactant gas into the film deposition chamber so as to form one of a plurality of second material layers, and sequentially evacuating the precursor containing the second element, the purge gas, and the second reactant gas from the film deposition chamber;
wherein the precursor containing the first element, the purge gas, the first reactant gas, the precursor containing the second element, the second reactant gas are evacuated from the film deposition chamber through a gas outlet at an exhaust velocity, and the exhaust velocity is at least 8 times higher than a supply velocity of the first reactant gas and a supply velocity of the second reactant gas.