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

Claim 0:
1. A preparing method of a sample for physical analysis, comprising:
providing a sample to be inspected; and
forming a contrast enhancement layer on a surface of the sample to be inspected according to a material of the sample to be inspected, wherein the contrast enhancement layer includes m layers of first material layers and n layers of second material layers that are stacked upon one another, m and n each being zero or a positive integer, and satisfying the following relationship: (m+n)>0;
wherein a material of each of the first material layers is different from a material of each of the second material layers, and each one of the first material layers and the second material layers has a thickness that does not exceed 0.1 nm; and
wherein in an image captured by an electron microscope, a difference between an average grayscale value of a surface layer image of the sample to be inspected and an average grayscale value of an image of the contrast enhancement layer is at least 50.