US2007146672A1PendingUtilityA1
Methods and systems to compensate for a stitching disturbance of a printed pattern in a maskless lithography system utilizing overlap of exposure zones with attenuation of the aerial image in the overlap region
Est. expirySep 30, 2023(expired)· nominal 20-yr term from priority
G03B 21/18G03F 7/70291G03F 7/70091G03F 7/70475G03F 7/70466G03B 27/42
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Claims
Abstract
A method and system are provided for printing a pattern on a photosensitive surface using a spatial light modulator (SLM). An exemplary method includes defining two or more exposure areas on the photosensitive surface, the exposure areas overlapping along respective edge portions of the exposure areas to form an overlap zone therebetween. Two or more exposure areas are exposed to print an image therein, the exposing extending through the overlap zone. The exposing within the overlap zone is then attenuated.
Claims
exact text as granted — not AI-modified1 . A method to compensate for errors in a pattern to be printed using a spatial light modulator (SLM), comprising:
defining exposure areas on a photosensitive surface, the exposure areas overlapping to form an overlap zone therebetween; determining attenuation of at least one of a predicted aerial image and a corresponding resist image; exposing the exposure areas to print an image therein, the exposing extending through the overlap zone; and implementing the determined attenuation during the exposing within the overlap zone.
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