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Siemens to Bring Advanced Timing Constraint Capabilities to EDA Design Flow with Excellicon Acquisition
May 19, 2025 | SiemensEstimated reading time: 2 minutes
Siemens has entered into an agreement to acquire Excellicon to bring its best-in-class software for the development, verification, and management of timing constraints to Siemens’ EDA portfolio of software for IC design
Acquisition enables System-on-a-Chip (SoC) designers to accelerate design closure and enhance functional and structural constraint correctness with industry-proven timing constraints management
Siemens Digital Industries Software announced today that it has entered into an agreement to acquire Excellicon. This will bring Excellicon’s best-in-class software for the development, verification, and management of timing constraints to Siemens’ EDA portfolio of software for IC design. The planned acquisition enables Siemens to deliver an innovative approach to both implementation and verification flows -enabling System-on-a-Chip (SoC) designers to improve power, performance and area (PPA), accelerate design closure, enhance functional and structural constraint correctness, improve productivity and address key gaps in the current workflows.
The SoC design landscape is rapidly evolving, driven in part by growing design complexity. Timing constraints management is required throughout the design process to meet power, performance, area and time-to-market requirements.
“Effective timing constraints management is crucial for the overall success of semiconductor system-on-chip designs,” said Mike Ellow, CEO, Siemens EDA, Siemens Digital Industries Software. “Excellicon’s constraint verification and management solution complements Siemens’ existing EDA offerings and expands our portfolio into key market segments in flows with the Questa, Tessent, Aprisa and PowerPro products.”
The addition of Excellicon’s comprehensive, proven product portfolio covers the entire spectrum of timing constraints authoring, compiling, verification, formal validation and management using a multi-mode approach that bridges early design concepts with their physical implementation - offering insights into partitioning schemes for optimal floorplans and timing. The integration of Excellicon’s timing constraint verification and management technology into Siemens will strengthen both implementation and verification flows.
“We are delighted to join Siemens and bring our knowledge and expertise in timing constraints management to the wider Siemens EDA community,” said Himanshu Bhatnagar, CEO, Excellicon. “Together, we’ll be able to provide better process coverage and enable our customers to deliver robust innovation to market more quickly and overcome the ever-growing complexity challenges facing the IC industry.”
Founded in 2009 in Laguna Hills, USA, Excellicon develops tools for timing constraints used in digital design and verification workflow. Terms of the acquisition, which is expected to close in a few weeks, were not disclosed.
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Brent Fischthal - Koh YoungSuggested Items
Siemens, UMC Collaborate to Advance EM/IR Drop Analysis with mPower Technology
07/22/2025 | SiemensSiemens Digital Industries Software announced that it has collaborated with United Microelectronics Corporation (UMC), a leading global semiconductor foundry, to implement Siemens' mPower™ software for electromigration (EM) and IR drop analysis, enabling chip designers to optimize performance and enhance reliability.
Siemens’ Veloce CS Selected by Arm for Neoverse Compute Subsystems Verification and Validation
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DownStream Acquisition Fits Siemens’ ‘Left-Shift’ Model
06/26/2025 | Andy Shaughnessy, I-Connect007I recently spoke to DownStream Technologies founder Joe Clark about the company’s acquisition by Siemens. We were later joined by A.J. Incorvaia, Siemens’ senior VP of electronic board systems. Joe discussed how he, Rick Almeida, and Ken Tepper launched the company in the months after 9/11 and how the acquisition came about. A.J. provides some background on the acquisition and explains why the companies’ tools are complementary.
Siemens Streamlines Design and Analysis of Complex, Heterogeneously Integrated 3D ICs
06/25/2025 | SiemensSiemens Digital Industries Software introduced two new solutions to its Electronic Design Automation (EDA) portfolio that help semiconductor design teams address and overcome the complexity challenges associated with the design and manufacture of 2.5D and 3D Integrated Circuit (IC) designs.