Invention Grant
US08219939B2 Method of creating photolithographic masks for semiconductor device features with reduced design rule violations 有权
为减少设计规则违规而制造半导体器件特征的光刻掩模的方法

Method of creating photolithographic masks for semiconductor device features with reduced design rule violations
Abstract:
A method of creating photolithographic masks for semiconductor device features with reduced design rule violations is provided. The method begins by providing preliminary data that represents an overall mask pattern. The preliminary data is processed to decompose the overall mask pattern into a plurality of component mask patterns. Next, a design rule check is performed on the plurality of component mask patterns to identify tip-to-tip and tip-to-line violations in the plurality of component mask patterns. The method continues by modifying at least one of the plurality of component mask patterns in accordance with the identified violations to obtain a modified set of component mask patterns, wherein each mask pattern in the modified set of component mask patterns is void of tip-to-tip and tip-to-line violations. Photolithographic masks are then created for the modified set of component mask patterns.
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