Patent ID: 11948882
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A semiconductor device comprising:
a substrate;
a first metal pattern on the substrate;
a second metal pattern on the first metal pattern;
a via contact between the first metal pattern and the second metal pattern;
an antireflective pattern on the second metal pattern; and
a third metal pattern on the antireflective pattern,
wherein the first metal pattern includes copper (Cu),
each of the second metal pattern and the third metal pattern includes aluminum (Al),
the via contact includes tungsten (W),
the antireflective pattern includes titanium nitride (TiN),
a thickness of the second metal pattern in a direction that is perpendicular to a top surface of the substrate is greater than a thickness of the first metal pattern in the direction,
the third metal pattern includes a redistribution line, and
the third metal pattern is connected to the antireflective pattern.