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

Claim 13:
14. The structure of claim 13, wherein:
the dielectric layer contains both nitrogen and carbon;
a concentration of nitrogen in the second portion is greater than the concentration of nitrogen in the first portion;
the concentration of nitrogen in the third portion is greater than the concentration of nitrogen in the first portion but less than the concentration of nitrogen in the second portion;
a concentration of carbon in the second portion is greater than the concentration of carbon in the first portion but less than the concentration of nitrogen in the second portion; and
the concentration of carbon in the third portion is greater than the concentration of carbon in the first portion and greater than the concentration of nitrogen in the third portion but less than the concentration of carbon in the second portion.