OpenLight PDK on Cadence for Tower PH18DA
Analysis based on 6 articles · First reported Aug 11, 2026 · Last updated Aug 12, 2026
The announcement strengthens Tower Semiconductor's position in the growing silicon photonics market, potentially boosting its foundry business as demand for AI and optical interconnect solutions rises. OpenLight gains broader market access through Cadence's established EDA ecosystem, likely accelerating customer adoption and supporting its recent funding momentum.
On August 11, 2026, OpenLight and Tower Semiconductor announced the availability of OpenLight's photonic Process Design Kit (PDK) for Tower's PH18DA indium phosphide (InP)-on-silicon photonics platform within Cadence Design Systems' electronic design automation (EDA) tools. Developed through close technical collaboration, the PDK enables customers to design advanced photonic integrated circuits (PICs) in a widely adopted IC design environment, accelerating development toward production. The PH18DA ecosystem combines OpenLight's photonics IP, Tower's manufacturing expertise, and Cadence's EDA tools, supporting applications such as optical interconnects, AI infrastructure, and sensing. The integration allows for co-optimized PIC and electronic IC (EIC) designs, targeting 400G and 1.6T laser-integrated PICs for near- and co-packaged optics (NPO/CPO) solutions. Executives from all three companies highlighted the milestone as key for introducing integrated active devices into high-performance electro-optical designs.
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