Abstract
Given the deployment delays for EUV, several next generation lithography (NGL) options are being actively researched. Several cost-effective NGL solutions, such as self-aligned double patterning through sidewall image transfer (SIT) and directed self-assembly (DSA), in conjunction with process integration challenges, mandate grating-like pattern design. As part of the GRATEdd project, we have evaluated the design cost of grating-based design for ASICs (application specific ICs). Based on our observations we have engineered fundamental changes to the primary ASIC design components to make scaling affordable and useful in deeply scaled sub-20 nm technologies: unidirectional-M1 based standard cells, application-specific smart SRAM synthesis, and statistical and self-healing analog design.
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