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Author: Admin | 2025-04-27
The startup ArcSys, which was previously merged with Integrated Silicon Solutions (ISS),[42] gaining Avanti its design rule checking and layout versus schematic tool Hercules (including 3D silicon structure modeling). Avanti then bought Compass Design Automation, which had fully integrated IC design flow and ASIC libraries, especially its place and route tool, which Avanti reworked to create Saturn and Apollo II. Avanti also bought TMA (Technology Modeling Associates) which brought its pioneering TCAD and Proteus optical proximity correction tools. The acquisition of Avanti was Synopsys' most significant and controversial acquisition. At the time, Avanti was the No. 4 company in the EDA industry, and was struggling with a major lawsuit from Cadence for software theft.[43] Avanti was merged into Synopsys on June 6, 2002, during the litigation. Synopsys paid Cadence about $265 million to end that litigation. Soon after the settlement, the California Supreme Court upheld the lower court's earlier decision. Synopsys then paid $26.1 million to Silvaco to settle two of Silvaco's three lawsuits against Meta-Software, earlier purchased by Avanti, and its president. The lawsuits were filed in 1995 and inherited by Avanti.[44]Magma Design Automation[edit]Synopsys agreed to buy its competitor Magma Design Automation for about $500 million in an all-cash deal in November 2011.[45][46]The two companies previously faced drawn-out, back-and-forth patent disputes, which began in 2004. These disputes arose when Synopsys claimed one of Magma's co-founders, Lukas van Ginneken, developed technology for Magma products that was based on work he conducted while employed at Synopsys. While van Ginneken later acknowledged the claim, Magma and Synopsys continued disputing each other's patents.[47] The litigations were eventually settled in 2007, with Magma paying Synopsys $12.5 million, and the companies agreeing to cross-license the disputed patents to each other.[48][49]Ciranova was an EDA company which focused on analog design automation. The company authored the Python-based
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