Patent ID: 11874595
Assignee: MICRON TECHNOLOGY, INC.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A photo-processing method, comprising:
forming photoimageable material over a substrate, the substrate having a first region where first target features are to be formed and having a second region where second target features are to be formed, the first target features being smaller than the second target features;
forming a reticle configured to pattern the first and second target features within the photoimageable material; the reticle having first pattern features which pattern the first target features and having second pattern features which pattern the second target features; each of the second pattern features having a configuration which includes a central region and an outer region, with the central region being of different opacity than the outer region; the first and second pattern features having first and second optimal doses of actinic radiation associated therewith; the configuration of the second pattern features balancing the second optimal dose of the actinic radiation to be within about 5% of the first optimal dose of the actinic radiation; and
passing the actinic radiation through the reticle and onto the photoimageable material to pattern the first and second target features within the photoimageable material in a single exposure.