Patent ID: 11923383
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 3:
4. The photomask of claim 3, wherein:
each of the first outer shape of the first test pattern, the first inner shape of the first test pattern, the second outer shape of the second test pattern, and the second inner shape of the second test pattern has a square shape,
a first length of one side of the second outer shape of the second test pattern is longer than a second length of one side of the first inner shape of the first test pattern and is shorter than a third length of one side of the first outer shape of the first test pattern, and
a fourth length of one side of the second inner shape of the second test pattern is shorter than the second length of one side of the first inner shape of the first test pattern.