Lithography-simulation-based design for manufacturability rule development: an integrated circuit design house's approach

Jonathan Ho; Yan Wang; Joanne Wu; Ya-Ching Hou; Ke-Chih Wu

doi:10.1117/1.2781584

1 July 2007 Lithography-simulation-based design for manufacturability rule development: an integrated circuit design house's approach

Jonathan Ho; Yan Wang; Joanne Wu; Ya-Ching Hou; Ke-Chih Wu

Author Affiliations +

J. of Micro/Nanolithography, MEMS, and MOEMS, 6(3), 031008 (2007). https://doi.org/10.1117/1.2781584

Abstract

We describe design house approaches for design rule developments with emphasis of valuations of pre-optical proximity correction (pre-OPC) layouts and their simulation results. To begin, we describe the procedure of the simulation model calibration. An evaluation of metrics for analyzing the design layouts is then described. Due to the unavailability of post-OPC layouts, both pre-OPC and trial-OPC simulations are studied. A range of layout pattern density, within which the pre-OPC metric follows the post-OPC's, is estimated. Within this pattern density range, pre-OPC layout then can be evaluated to identify potential process "hot spots." With this approach, a set of design for manufacturability (DFM) compliance design rules is derived and applied to the product developments for both 90- and 65-nm process technology nodes. Several hot spots in the products (designed with 90-nm design rules) are located and fixed using layout optimization guided by the DFM rules. Simulated image contours and in-line scanning electron microscope (SEM) images validate the approach.

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Jonathan Ho, Jonathan Ho, Yan Wang, Yan Wang, Joanne Wu, Joanne Wu, Ya-Ching Hou, Ya-Ching Hou, Ke-Chih Wu, Ke-Chih Wu, } "Lithography-simulation-based design for manufacturability rule development: an integrated circuit design house's approach," Journal of Micro/Nanolithography, MEMS, and MOEMS 6(3), 031008 (1 July 2007). https://doi.org/10.1117/1.2781584 . Submission:

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