Siemens, Leti team for first automated hybrid photonic design flow

June 23, 2021 // By Nick Flaherty
Siemens, Leti team for first automated hybrid photonic design flow
A physical process design kit from CEA-Leti provides the industry's first automated hybrid flow for photonic and electronic designs on 300mm wafers

CEA-Leti is working with Siemens Digital Industries Software to offer an updated process design kit (PDK) that enables photonic designers to select multiple methodologies, including layout centric, schematic driven and layout automation with electronic designs all on 300mm wafers.

For the photonic element, the Siemens Tanner L-Edit software tool includes autonomous photonic design, easy creation and editing of waveguides, automatic insertion of crossing waveguides, an export simulation netlist and layout-oriented design. The PDK is suitable for Leti’s 300mm multi-project wafer (MPW) process.

For the hybrid combination of photonic and electronic designs, the PDK supports the Siemens’ LightSuite Photonic Compiler. This is an automated electronic and optical line-routing tool for a seamless design flow and provides the industry's first integrated electrical/photonic layout automation tool.

This includes automated routing of both the waveguides and electrical control, and rapid production of a new layout without DRC error, verified by the Siemens Calibre software platform for the physical chip verification for hybrid design.

In addition to simplifying optical-circuit design, the new PDK version allows increased flexibility and evolution for future designs, along with many more components for both C-band and 0-band applications.

“Our close collaboration over many years with the EDA segment of Siemens Digital Industries Software (formerly Mentor Graphics), a leading source of CAD tools in micro-technologies, has produced a new level of maturity in content, layout design rules, photonic routing and other EDA features with this state-of-the-art PDK,” said  Christophe Kopp,  Head of the Photonic Circuit, Sensor and Display Lab at CEA-Leti and Director of the Nanoelec Photonic sensors program. “In addition, thanks to its compatibility with the LightSuite Photonic Compiler tool, designers will have the tools to produce electro-optical circuits with optical and electrical routing on thousands of components in a matter of minutes. The design of optical circuits will be greatly simplified and shortened, while adding flexibility and evolution for future versions.” 

“Our relationship with CEA-Leti began with the 200mm photonic PDK and we are pleased to continue this support with the 300mm PDK for our mutual customers,” said Greg Lebsack, General Manager ICDS Division, Siemens Digital Industries Software. “CEA-Leti is an early user of the LightSuite Photonic Compiler flow, and they continue to benefit from the productivity features and support for Siemens’ EDA customers.

www.leti-cea.com

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