Invention Grant
US09576099B2 Minimizing harmful effects caused by reticle defects by re-arranging IC layout locally 有权
通过在本地重新布置IC布局,最大限度地减少掩模版缺陷造成的有害影响

Minimizing harmful effects caused by reticle defects by re-arranging IC layout locally
Abstract:
Provided is a method of fabricating a semiconductor device. An integrated circuit (IC) layout plan is obtained. The IC layout plan contains critical features and non-critical features. Locational information regarding a defect on a blank reticle is obtained. The blank reticle is a candidate reticle for being patterned with the IC layout plan. Based on the locational information regarding the defect and the IC layout plan, a determination is made that at some of the critical features will intersect with the defect if the blank reticle is patterned with the IC layout plan, regardless of whether the IC layout plan is globally manipulated or not before being patterned onto the blank reticle. In response to the determination, selected local portions of the IC layout plan are re-arranged such that none of the critical features will intersect with the defect if the blank reticle is patterned with the IC layout plan.
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