Patent ID: 11880140
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G

Claim 6:
7. The method of claim 2, further comprising:
removing the photosensitive material after developing the photosensitive material;
forming an additional photosensitive material over the substrate after removing the photosensitive material;
exposing the additional photosensitive material to additional electromagnetic radiation at an additional plurality of depths of focus that are laterally centered with one another along an additional path that extends in a direction perpendicular to an upper surface of the additional photosensitive material and that are vertically off-centered from one another, wherein the additional plurality of depths of focus are centered within the additional photosensitive material; and
developing the additional photosensitive material to remove an additional soluble region.