Patent ID: 11901295
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A structure, comprising:
a substrate; and
a dielectric layer that contains an element that is nitrogen or carbon;
wherein:
the dielectric layer includes a first portion, a second portion, and a third portion;
the second portion is located farther away from a bottom surface of the dielectric layer than the first portion;
the third portion is located farther away from a bottom surface of the dielectric layer than the second portion;
a concentration of the element in the second portion is greater than the concentration of the element in the first portion; and
the concentration of the element in the third portion is greater than the concentration of the element in the first portion but less than the concentration of the element in the second portion.