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RuleWise Technology:
Enabling Process-Portable Analog Design
Ciranova developed RuleWise Technology specifically to solve the increasingly difficult problem of design rule complexity. RuleWise Technology effectively eliminates the need for layout and PDK designers to remember and wrestle with process-specific requirements, enabling the creation of process-portable analog circuit layout and PyCell Libraries.
A New Approach to Automating Layout
| The RuleWise Engine creates design-rule-correct layout for PyCells and Ciranova Helix, eliminating the need for users to specify design rule behavior |
Traditional approaches to PCell design and analog layout automation require users to specify design rule related behavior. Ciranova RuleWise Technology represents a fundamental advance because it combines two sophisticated software components that automatically capture and implement process requirements. These components are:
The Technology Database
The Technology Database handles all technology information, including data about layers and layer relationships, physical design rules and electrical design rules. Physical design rule sets can include simple minimum spacing rules, recommended rules and/or complex conditional rules, as used in typical DRC engines. The Technology Database also provides support for multiple simultaneous rule sets, which is often required to meet DFM requirements.
The RuleWise Engine
The RuleWise Engine has much in common with geometry engines that power many DRC programs. However, rather than checking layout to flag errors, the RuleWise Engine is used to construct design-rule-correct layout using process data contained in the Technology Database. Both Ciranova Helix and PyCell Studio access the RuleWise Engine to create layout that is design-rule-correct for the target process technology. Computers are much better than humans at remembering and applying all the design rules in a given process.
The Result: Space Efficient, Design-rule-correct Layout
The goal of every circuit and layout designer is to create compact layout that meets performance objectives and is design-rule-correct. Ciranova RuleWise Technology automatically creates space efficient, design-rule-correct layout, so that designers can focus their efforts on circuit function and performance.