Multiple via connections using connectivity rings

摘要

Among other things, one or more techniques and/or systems for performing design layout are provided. In an example, a design layout corresponds to a layout of a standard cell whose connectivity is described by a netlist. For example, the netlist specifies net types for respective vias of the standard cell. One or more connectivity rings are formed within the design layout to provide connectivity for one or more vias of the design layout. For example, a first connectivity ring is generated, such as from mandrel, to connect one or more ring one vias. A second connectivity ring is generated, such as from passive pattern, to connect one or more ring two vias. One or more cuts are generated within the design layout to isolate vias having different net types. In this way, the design layout is self-aligned double patterning (SADP) compliant.

主权项

1. A method, comprising:
generating a first connectivity ring to connect one or more ring one vias, the first connectivity ring comprising mandrel and the one or more ring one vias extending through the mandrel; generating a second connectivity ring to connect one or more ring two vias, the second connectivity ring comprising a passive pattern and at least partially surrounded by the first connectivity ring, the one or more ring two vias extending through the passive pattern; and generating one or more cuts within the first connectivity ring to isolate a first ring one via of the one or more ring ones vias from a second ring one via of the one or more ring ones vias, wherein the method is implemented by a processing unit that executes processor-executable instructions stored on a non-transitory computer-readable medium.