发明名称 |
METHOD AND APPARATUS FOR PERFORMING DUMMY-FILL BY USING A SET OF DUMMY-FILL CELLS |
摘要 |
An embodiment performs dummy fill in a design layout to achieve a target density within a narrow range of target densities. During operation, the system receives a design layout that includes a region whose density is not within a desired range of target densities. Next, the system receives a set of dummy-fill cells which can be used to place a dummy-fill array to fill an arbitrarily sized rectangle. The dummy-fill cells may contain assist features and optical proximity corrections which cause the dummy shapes to print properly regardless of the size of the dummy-fill array. The system then determines a polygon in the design layout to fill with dummy-fill cells. Next, the system fractures the polygon into a set of rectangles. The system uses the set of dummy-fill cells to place a dummy-fill array that fills a rectangle. |
申请公布号 |
WO2009045613(A1) |
申请公布日期 |
2009.04.09 |
申请号 |
WO2008US71310 |
申请日期 |
2008.07.28 |
申请人 |
SYNOPSYS, INC.;VAN ADRICHEM, PAULUS J.M.;GOINARD, DENIS L. |
发明人 |
VAN ADRICHEM, PAULUS J.M.;GOINARD, DENIS L. |
分类号 |
G06F17/50 |
主分类号 |
G06F17/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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