Cadence Design Systems Explained

Cadence Design Systems, Inc.
Type:Public
Industry:Software
Founded: in San Jose, California as Solomon Design Automation (SDA), renamed Cadence Design Systems in 1988
Key People:Anirudh Devgan (president, CEO)
Lip-Bu Tan (executive chairman)
Revenue: (2023)
Operating Income: US$1.25 billion (2023)
Net Income: US$1.04 billion (2023)
Assets: US$5.67 billion (2023)
Equity: US$3.40 billion (2023)
Num Employees: (December 2023)
Footnotes:[1]

Cadence Design Systems, Inc. (stylized as cādence)[2] is an American multinational technology and computational software company. Headquartered in San Jose, California,[2] Cadence was formed in 1988 through the merger of SDA Systems and ECAD. Initially specialized in electronic design automation (EDA) software for the semiconductor industry, currently the company makes software and hardware for designing products such as integrated circuits, systems on chips (SoCs), printed circuit boards,[3] and pharmaceutical drugs, also licensing intellectual property for the electronics, aerospace, defense and automotive industries, among others.

History

1983–1999

Founded in 1983 in San Jose, California, Cadence Design Systems began as an electronic design automation (EDA) company named Solomon Design Automation (SDA). SDA's cofounder's included James Solomon, Richard Newton, and Alberto Sangiovanni-Vincentelli.[4] Cadence was formed by the merger of SDA and ECAD. A public company, ECAD had been co-founded by Ping Chao, Glen Antle, and Paul Huang in 1982. Cadence Design Systems was officially formed through SDA and ECAD's 1988 merger, with Joseph Costello was appointed both CEO and president of the newly combined company. After the merger, Cadence began trading on the New York Stock Exchange and Costello oversaw further mergers and acquisitions.[5]

In 1989, the company acquired Gateway Design Automation for $72 million. In 1990 it acquired Automated Systems Inc., and in doing so added "board design to its existing line of chip design software." In 1991, Cadence acquired its rival Valid Logic Systems for around $200 million, its biggest acquisition yet. The revenues of the combined company were $390 million, making Cadence "the largest provider of the software used by electronic engineers to design computer chips and circuit boards," according to the New York Times.[5] In 1996, Cadence acquired High Level Design Systems, at which point Cadence had 3,300 employees and $742 million in annual revenue. Following the resignation of Cadence's original CEO Joe Costello in 1997, Jack Harding was appointed CEO.[6] Ray Bingham was named CEO in 1999.[7] Cadence purchased Ambit Design Systems for $260 million, which made tools for system-on-a-chip technology, in 1998, and OrCAD Systems in 1999. After acquiring Quickturn Design in 1999, Cadence was described as a "white knight" for the act by the New York Times, as Quickturn had been subject to a hostile takeover by Cadence's rival Mentor Graphics.

2000–2019

Under urging by executives such as Jim Hogan and executive vice president Penny Herscher, between 2001 and 2003, Cadence purchased a number of implementation tools through acquisition, such as Silicon Perspective, Verplex, and Celestry Design. The acquisitions were apparently in part to counter the 2001 purchase of Avanti by Synopsys, as Synopsys had become their primary market rival. In 2004, Mike Fister became Cadence's new CEO and president, with Ray Bingham becoming chairman. The former chairman, Donald L. Lucas, remained on the Cadence board.[8] Between 2004 and 2007, Cadence purchased four companies, including the software developer Verisity, and in 2006, it spent $1 billion in stock buybacks.

In 2007, Cadence announced it would be introducing a new chip-making process that laid wires diagonally as well as horizontally and vertically, arguing it would make its designs more efficient. In June 2007, Cadence had a market value of around $6.4 billion. That year, Cadence was rumored to be in talks with Kohlberg Kravis Roberts and Blackstone Group regarding a possible sale of the company.[9] Cadence withdrew a $1.6 billion offer to purchase Mentor Graphics in 2008.[10] Also that year, Cadence's board appointed Lip-Bu Tan as acting CEO, after the resignation of Mike Fister; Tan had served on the Cadence board of directors since 2004.[11] In January 2009, the board of directors of Cadence voted unanimously to confirm Lip-Bu Tan as president and CEO.[12] In 2011, it purchased Altos Design Automation. Subsequent notable acquisitions included Cosmic Circuits and Tensilica in 2013, Forte Design Systems in 2014, and the AWR Corporation in 2019.

2020–2024

Cadence had 9,300 employees and annual revenue of $3 billion in 2021. In April 2021, following a Washington Post report on the use of Cadence and Synopsys technology in the People's Liberation Army's military-civil fusion efforts,[13] U.S. legislators Michael McCaul and Tom Cotton requested that the United States Department of Commerce tighten controls on the sales of semiconductor manufacturing software.[14] [15] On December 15, 2021, Anirudh Devgan assumed the role of Cadence president & CEO, after having been named Cadence president in 2017. Lip-Bu Tan retired as CEO and became executive chairman.[16] In 2021, Cadence launched an artificial intelligence platform to streamline processor development.

Although most of Cadence's customers for decades were "traditional semiconductor firms," around 40% of Cadence's revenue by 2022 came from customers who were "systems" oriented, or seeking products tailored for various industries that utilized chips in a central role. Cadence was also increasingly designing customized chips for clients and having them manufactured by third parties such as Taiwan Semiconductor Manufacturing, a practice which had become more popular in the face of worldwide chip shortages and shipping issues, according to Reuters. By late 2022, Cadence had clients such as Tesla and Apple Inc. Cadence acquired OpenEye Scientific Software for $500 million in September 2022, rebranding the company OpenEye Cadence Molecular Sciences and making it into a business unit. OpenEye signed Pfizer as a software client in October 2023.[17] Cadence purchased the SerDes and memory interface PHY IP business from Rambus in 2023.

Products

Originally known as a creator of electronic design automation (EDA) software, the company currently develops software, hardware and intellectual property (IP) used to design chips,[18] chiplet-style products,[19] and printed circuit boards,[20] while also selling hardware systems that run its chip design software.

It also has tools for "electromagnetics, thermal and computational fluid dynamics in the high-tech electronics, aerospace and defense and automotive sectors," and according to Investor's Business Daily in 2023, it specializes in products for fields such as "artificial intelligence and machine learning, cloud computing, 3D technology, and AI-enabled big data analytics."[21] Among market applications are "hyperscale computing, 5G communications, automotive, mobile, aerospace, consumer, industrial and health care."

Integrated circuit software

The company develops a number of technologies for creating custom integrated circuits. For example, its Virtuoso Platform incorporates tools for designing full-custom integrated circuits.[22] In 2019, Cadenced introduced its Spectre X parallel circuit simulator, so that users could distribute time- and frequency-domain simulations across hundreds of CPUs for speed.[23] Cadence also developed AWR, a radio frequency to millimeter wave design environment for designing 5G/wireless products. AWR is used for communications, aerospace and defense, semiconductor, computer, and consumer electronics.[24] [25]

Digital implementation and signoff

Cadence has a number of digital implementation and signoff tools, including Genus, Innovus, Tempus & Voltus, among others. In 2020, Cadence integrated its Innovus place and route engine and optimizer into Genus Synthesis.[26] Stratus is Cadence's high-level synthesis tool, and is used to create RTL implementations from C, C++, or SystemC code.[27] Other formal verification and signoff tools include Conformal Equivalence Checker,[28] Joules RTL Power Solution,[29] Quantus Extraction Solution,[30] and Cadence's Modus DFT Software Solution.[31]

System verification

Cadence has developed a number of formal verification products for chip design. JasperGold is a formal verification tool, initially introduced in 2003[32] and upgraded with machine learning in 2019.[33] is a verification management tool for tracking the verification process.[34] [35] Cadence announced Perspec System Verifier in 2014 for defining and verifying system-level verification scenarios,[36] with Perspec made compatible with the Accellera Portable Test and Stimulus Standard (PSS) several years later.[37] Introduced in 2017, Cadence's parallel simulator Xcelium is based on a multi-core parallel computing architecture.[38]

Hardware emulation

In 2015, Cadence announced the Palladium Z1 hardware emulation platform,[39] with over 100 million gates per hour compile speed, and greater than 1 MHz execution for billion-gate designs.[40] which was based on emulation technology from Cadence's 1998 acquisition of Quickturn.[41] Cadence announced Palladium Z2 in 2021, claiming a 1.5X performance and 2X capacity improvement over the Z1.[42] [43]

The Protium FPGA prototyping platform was introduced in 2014,[44] followed by the Protium S1 in 2017, which was built on Xilinx Virtex UltraScale FPGAs.[45] Protium X1 rack-based prototyping was introduced in 2019,[46] which Cadence claimed supported a 1.2 billion gate SoCs at around 5 MHz.[47] with Palladium S1/X1 and Protium sharing a single compilation flow.[48] IIn 2021, Protium X2 was announced; Cadence claimed a 1.5X performance and 2X capacity improvement over Protium X1.[49] [50]

SIP blocks

Cadence supplies semiconductor intellectual property (SIP) blocks, covering interface design, USB, MIPI, ethernet,[51] memory, analog, SoC peripherals, and data plane processing units. Cadence also develops chip verification technologies including simulators and formal verification tools. Cadence develops Tensilica DSP processors for audio, vision, wireless modems, and convolutional neural nets. Tensilica DSP processors IP in 2019[52] included: Tensilica Vision DSPs for imaging, vision, and AI processing;[53] [54] Tensilica HiFi DSPs for audio processing;[55] [56] Tensilica Fusion DSPs for IoT;[57] Tensilica ConnX DSPs for radar, lidar, and communications processing;[58] [59] and Tensilica DNA Processor Family for AI acceleration.[60] [61] In 2021, Cadence launched the Tensilica AI Platform to accelerate AI SoC development and improve performances.[62]

PCB and packaging technologies

The company has a number of printed circuit board (PCB) and packaging technologies for designing circuit boards. Its Allegro Platform has tools for co-design of integrated circuits, packages, and PCBs. OrCAD/PSpice has tools for smaller design teams and individual PCB designers.[63] OrbitIO Interconnect Designer is a die/package planning & route optimization tool.[64] InspectAR uses augmented reality to map out complicated circuit board electronics for real-time labelling of board schematics.[65]

Systems design and analysis

The company has a number of tools for system analysis. Sigrity has tools for signal, power integrity, and thermal integrity analysis and IC package design.[66] Introduced in April 2019 as part of Cadence's expansion into system analysis, Clarity is a 3D field solver for electromagnetic analysis, that uses distributed adaptive meshing to partition jobs across multiple cores.[67] In September 2019, Cadence announced Celsius, a parallel architecture thermal solver that uses finite element analysis for solid structures and computational fluid dynamics (CFD) for fluids.[68] Cascade Technologies, Inc includes hi-fidelity CFD solvers for multiphysics analysis of turbulence fluid flow.[69] Acquired by Cadence from Pointwise in 2021, Fidelity Pointwise is for computational fluid dynamics (CFD) mesh generation.[70]

Automotive and machine design

Cadence in 2021 acquired a number of system analysis products from NUMECA, known for software tools used in the automotive, marine, aerospace, and power generation industries.[71] Among the tools were Fidelity (formerly known as OMNIS), a computational fluid dynamics (CFD), mesh generation, multi-physics simulation, and optimization product.[72]

Drug design

Cadence's OpenEye Scientific division has computational molecular modeling and simulation software used by pharmaceutical and biotechnology companies for purposes such as drug discovery. The Orion is OpenEye's software-as-a-service platform.[73]

Artificial intelligence

The company was increasingly incorporating artificial intelligence (AI) in 2023, according to Reuters, by "providing tools to design chips for AI" as well as by "adding AI into its own software to help in the complex process of designing chips."[74] Cerebrus was released in 2021, and is a machine learning-based chip which utilizes reinforcement learning and is meant to automatically optimize the Cadence digital design flow.[75] [76] In 2022, Cadence introduced the AI platform Optimality Intelligent System Explorer, a system design tool with multiphysics system analysis software. Designed to be compatible with Clarity 3D and SigrityX, Microsoft was an early adopter.[77]

Recognition

In 2016, Cadence CEO Lip-Bu Tan was awarded the Dr. Morris Chang Exemplary Leadership Award by the Global Semiconductor Alliance.[78] In 2019, Investor's Business Daily ranked Cadence Design Systems #5 on its 50 Best Environmental, Social, and Governance (ESG) Companies list.[79] In 2020, Cadence ranked #45 on People Magazine's Companies that Care list.[80] Fortune Magazine named Cadence to its 100 Best Companies to Work For list for the sixth consecutive year in 2020.[81]

Sponsorship

In May 2022, the Formula 1 motor racing team McLaren announced a multi-year partnership deal with Cadence.[82] Cadence partnered with the San Francisco 49ers in April 2023 on a several year technology project to fix energy efficiencies at Levi's Stadium. The deal also gave Cadence the naming rights to the team's mobile app.[83]

Acquisitions timeline

Year
announ-
ced
CompanyBusinessValue (USD)Refe-
rences
1989Gateway Design AutomationSimulation software$72 million[84]
1990Automated Systems, Inc.PCB Design Automation$23 million[85]
1991Valid Logic SystemsGate-level design$198 million[86] [87]
1993Comdisco SystemsDigital signal processing & communications design$13 million[88]
1996High Level Design Systems Inc.Advanced design technology for integrated circuits$94 million[89]
1997Cooper & Chyan Technology
UniCAD
Placement and routing (Specctra AutoRouter) and UniCAD (PCB Design)$422 million[90] [91] [92]
1998Ambit Design SystemsSystem-on-a-chip technology$260 million[93]
1998Bell Labs Design AutomationSimulation and verification software$45 million[94]
1998Quickturn Design SystemsEmulation hardware$253 million[95]
1999OrCAD SystemsPCB & FPGA design$121 million[96]
2002IBM's DFT tools & groupDesign for testingnot disclosed[97]
2003Celestry DesignDense modeling, full-chip circuit simulationnot disclosed[98]
2001-
2003
CadMOS
Plato
Get2Chip
Silicon Perspective
Simplex
CadMOS (signal integrity), Plato (routing), Get2Chip (logic synthesis), Silicon Perspective Corp. (floor planning and placement), Simplex (extraction and power analysis)multiple[99]
2003VerplexFormal verification, equivalence checkersnot disclosed[100]
2004NeolinearAnalog & mixed-signal layout, circuit sizingnot disclosed[101]
2005VerisityVerification automation, hardware acceleration$315 million[102]
2006PraesagusManufacturing variation predication$26 million[103]
2007InvariumLithography-modeling and pattern-synthesisnot disclosed[104]
2007Clear ShapeDesign for Manufacturingnot disclosed[105] [106]
2008Chip EstimateIP portal, IP reuse managementnot disclosed[107]
2010Denali SoftwareMemory models, design IP, verification IP$315 million[108]
2011Altos Design AutomationFoundation IP characterization, such as memory, standard cell libraries not disclosed[109] [110]
2011AzuroClock concurrent optimizationnot disclosed[111]
2012SigritySignal, power & thermal integrity analysis, IC package design$80 million[112]
2013Cosmic CircuitsAnalog & mixed-signal IP for mobile device IP, such as USB, MIPI, audio & Wi-Fi coresnot disclosed[113] [114]
2013TensilicaDataplane processing IP$380 million[115] [116]
2013EvatronixSemiconductor IP: USB, MIPI, display, & storage interfacesnot disclosed[117]
2014Forte Design SystemsHigh-level synthesisnot disclosed[118] [119]
2014Jasper Design AutomationFormal analysis & verification$170 million[120] [121]
2016Rocketick TechnologiesMulti-core parallel simulatornot disclosed[122]
2017nusemiHigh-speed Serializer/Deserializer (SerDes) communications IP$182 million[123]
2019AWR CorporationWireless/high-frequency radio-frequency application design software$160 million[124]
2020Integrand SoftwareMethod of moments solver technology for analysis & extraction for simulating large IC and packages, characterization, and analysis in 3D-IC systemsnot disclosed[125] [126]
2020InspectAR Augmented InterfacesMaps electronics & labels circuit board schematics in real-time using augmented realitynot disclosed[127] [128]
2021NUMECACFD, mesh generation, multi-physics simulation & optimizationnot disclosed
2021PointwiseComputational fluid dynamics (CFD) mesh generationnot disclosed
2022Future FacilitiesCFD solution provider for electronics cooling and energy performance optimization solutions for data center design and operations not disclosed[129]
2022OpenEye ScientificComputational molecular modeling and simulation software used by pharmaceutical and biotechnology companies for drug discovery$500 million[130]
2023PulsicFull custom IC floorplanning, placement, and routing tools$59.9 million[131]
2023RambusCompletion of acquisition of SerDes and memory interface PHY IP business from Rambus Inc. not disclosed[132]
2023Intrinsix CorporationSemiconductor design services providernot disclosed[133]
2024Invecas IncDesign engineering, embedded software and system-level solutions providernot disclosed[134]
2024BETA CAESimulation and analysis software$1.24 billion[135]

Lawsuits

See main article: Cadence Design Systems, Inc. v. Avanti Corp. From 1995 until 2002, Cadence was involved in a 6-year-long legal dispute[136] with Avanti Corporation (brand name "Avant!"), in which Cadence claimed Avanti stole Cadence code, and Avanti denied it. According to Business Week "The Avanti case is probably the most dramatic tale of white-collar crime in the history of Silicon Valley".[136] The Avanti executives eventually pleaded no contest and Cadence received several hundred million dollars in restitution. Avanti was then purchased by Synopsys, which paid $265 million more to settle the remaining claims.[137] The case resulted in a number of legal precedents.[138]

See also

External links

NASDAQ:

Notes and References

  1. Web site: Cadence Design Systems, Inc. 2023 Annual Report . February 14, 2024 . U.S. Securities and Exchange Commission.
  2. Investor's Business Daily CEO Lip-Bu Tan Molds Troubled Cadence Into Long-Term Leader Retrieved November 12, 2020
  3. The Street How Cadence Designs the Future Retrieved July 21, 2020
  4. Web site: Alberto Sangiovanni-Vincentelli receives EDAA Lifetime Achievement Award. Bailey. Brian. December 20, 2017. EE Times.
  5. NYTimes A Fun Chief at Cadence Is Serious Merger Man Retrieved October 4, 1991
  6. WSJ Cadence's Costello Steps Down As CEO to Join Software Firm Retrieved October 21, 1997
  7. EETimes Harding replaced as Cadence president Retrieved April 27, 1999
  8. WSJ Intel's Michael Fister Resigns To Take Top Job at Cadence Retrieved May 13, 2004
  9. https://www.nytimes.com/2007/06/04/technology/04chip.html Specialized Software Maker Is Said to Be in Buyout Talks
  10. Web site: Cadence Withdraws Proposal to Acquire Mentor Graphics.
  11. IConnect007 Cadence CEO Mike Fister Resigns Retrieved October 15, 2008
  12. EETimes Lip-Bu Tan named Cadence CEO Retrieved January 8, 2009
  13. News: Nakashima . Ellen . Shih . Gerry . April 9, 2021 . China builds advanced weapons systems using American chip technology . en-US . . 2023-04-02 . 0190-8286.
  14. Web site: April 15, 2021 . McCaul, Cotton Ask Administration to Restrict Sale of Chip-Making Software to China . 2023-04-02 . . en.
  15. News: De Chant . Tim . April 16, 2021 . Congressmen ask Biden admin to keep chip design software away from China . . April 2, 2023.
  16. Guru Focus Cadence Announces Anirudh Devgan to Become CEO in December 2021 Retrieved July 26, 2021
  17. News: October 25, 2023 . Cadence Expands Pfizer's License to Molecular Design Software . Cadence.com .
  18. https://www.nytimes.com/2007/02/26/technology/26chip.html Design on Diagonal Path in Pursuit of a Faster Chip
  19. News: Don Clark . May 11, 2023 . U.S. Focuses on Invigorating 'Chiplets' to Stay Cutting-Edge in Tech . .
  20. NYTimes Cadence Acquires Software Company Retrieved April 11, 1990
  21. News: March 15, 2023 . Top Funds Can't Get Enough Of This Breakout AI Stock  . Investor's Business Daily .
  22. Web site: Course description from University of Colorado . 2007-06-10 . https://web.archive.org/web/20070624084120/http://ece-www.colorado.edu/~ecen5007/software.html . 2007-06-24 . dead .
  23. New Electronics Cadence looks to boost simulation performance with the Spectre X Simulator Retrieved June 3, 2019
  24. Chin, Spencer (December 5, 2019). acquires AWR from NI to bolster 5G presence" Fierce Electronics Retrieved September 6, 2021
  25. Levitsky, Allison (December 2, 2019). Design Systems to acquire AWR Corp. from National Instruments for $160M" Silicon Valley Business Journal Retrieved September 6, 2021
  26. EENews Europe Cadence's digital full flow promises up to 3X faster throughput, better results Retrieved March 17, 2020
  27. Morris, Kevin Powers AI Revolution EEJournal Retrieved Mar 31, 2020
  28. News: 2024 . Conformal Equivalence Checker . Cadence Home Website . March 12, 2024.
  29. News: 2024 . Joules RTL Power Solution . Cadence Home Website . March 12, 2024.
  30. News: 2024 . Quantus Extraction Solution . Cadence Home Website . March 12, 2024.
  31. News: 2024 . Cadence Modus DFT Software Solution . Cadence Home Website . March 12, 2024.
  32. EETimes Startup promises 'pure' formal tool for verification Retrieved May 19, 2003
  33. eeNews Europe Formal verification platform leverages AI to speed up verification throughput Retrieved May 9, 2019
  34. Tech Design Forum Cadence uses SQL to boost verification manager capacity Retrieved February 24, 2014
  35. Oct 6, 2003 has tool for SoC design project management Electronics Weekly Retrieved Oct 30, 2021
  36. Electronics Weekly Chip verification moves to system-level Retrieved December 11, 2014
  37. Electronics Weekly EDA embraces standard to streamline IC test and verification Retrieved July 6, 2018
  38. EET Asia Multi-core parallel engine powers Cadence simulator Retrieved March 1, 2017.
  39. EE Journal State of Emulation Retrieved June 6, 2016
  40. Electronic Specifier Enterprise Emulation Platform Develops Supercomputer Retrieved October 26, 2016
  41. NY Times Cadence to Acquire Quickturn Design Retrieved 36137
  42. Neowin Cadence's latest Palladium and Protium "dynamic duo" to offer 2X capacity and 1.5X gains Retrieved Apr 5, 2021
  43. EENews Europe Cadence boosts its emulation and verification systems Retrieved Apr 5, 2021
  44. EDN Cadence unveils Protium FPGA-based SoC prototyping platform Retrieved July 14, 2014
  45. EET Asia Multi-core parallel engine powers Cadence simulator Retrieved March 1, 2017
  46. Tech Design Forum Cadence Expands Protium for Rack-Based Prototyping Retrieved May 28, 2019
  47. Electronics Weekly Cadence machine can prototype a 1bn gate SoC on FPGAs Retrieved May 29, 2019
  48. EE Journal Cadence EDA Update Retrieved May 8, 2017
  49. Embedded Cadence speeds billion gate SoC verification Retrieved Apr 7, 2021
  50. New Electronics Cadence unveils next-generation Palladium Z2 and Protium X2 systems Retrieved Apr 6, 2021
  51. News: 2024 . Interface IP . Cadence Home Website . March 13, 2024.
  52. Web site: Tensilica Customizable Processor and DSP IP. ip.cadence.com. 2019-05-16.
  53. AnandTech Cadence Announces Tensilica Q7 DSP Retrieved May 15, 2029
  54. Embedded Cadence: Tensilica Vision Q7 DSP IP doubles vision and AI performance for automotive, AR/VR mobile Retrieved May 16, 2019
  55. eeNews Embedded Cadence Tensilica HiFi 5 DSP for audio and voice processing Retrieved November 1, 2018
  56. EE Journal Watching AI Evolve Retrieved November 12, 2018
  57. Engineering.com Cadence Announces Availability of Tensilica Xtensa LX7 Processor Architecture Retrieved September 30, 2016
  58. Embedded Computing Design Cadence's Tensilica ConnX B20 DSP IP Boosts Performance for Automotive Radar/Lidar and 5G Retrieved March 8, 2019
  59. Electronics Weekly Cadence ups DSP throughput for 5G comms, and automotive radar and lidar Retrieved March 7, 2019
  60. AnandTech Cadence Announces The Tensilica DNA 100 IP: Bigger Artificial Intelligence Retrieved September 19, 2018
  61. Electronic Design Cadence's Deep-Neural-Network Processor Pushes to 3.4 TMACs/W Retrieved September 26, 2018
  62. HelpNet Security Cadence Tensilica AI Platform accelerates intelligent SoC development Retrieved Sep 15, 2021
  63. Web site: UNIX Software and CAD tools. Carleton University. 2007-06-10. https://web.archive.org/web/20120503235221/http://www.doe.carleton.ca/facilities/computer_help/internal/software.php. 2012-05-03. dead.
  64. Schilling, Andreas (May 2, 2018). approach: TSMC stacks several wafers on top of each other Hardware LuxxRetrieved May 2, 2018
  65. Kirkwood, Isabelle Newfoundland's InspectAR Acquired By Cadence Design Systems BetaKit Retrieved Aug 13, 2020
  66. EE Times Cadence Pays $80 million to buy signal integrity firm Retrieved July 3, 2012
  67. Web site: Cadence Eyes System Analysis Market. McGrath. Dylan. 2 April 2019. EE Times.
  68. EE News Embedded Complete Electrical-thermal co-simulation for system analysis Retrieved September 19, 2019
  69. https://community.cadence.com/cadence_blogs_8/b/cfd/posts/cadence-welcomes-cascade-technologies-1221740980 Cascade CFD Blog
  70. eeNews OneSpin deal leads flurry of EDA acquisitions: Page 2 of 3 Retrieved Apr 15, 2021
  71. News: January 22, 2021 . Week In Review: Auto, Security, Pervasive Computing . Semiconductor Engineering . March 13, 2024.
  72. eeNews Europe Cadence buys Belgian CFD specialist Retrieved Jan 21, 2021
  73. News: July 26, 2022 . Cadence expands into molecular simulation  . New Electronics .
  74. News: July 24, 2023 . Cadence lifts full-year forecast, shares dip on short-term outlook . . March 13, 2024.
  75. Takahashi, Dean (August 18, 2021). "Cadence Design Systems launches Cerebrus machine learning for chip design" Venture Beat Retrieved September 5, 2021
  76. Deutshcer, Maria (July 22, 2021). "Chip design giant Cadence launches AI platform to speed processor development" Silicon Angle Retrieved September 5, 2021
  77. News: June 13, 2022 . Cadence Taps AI Technology to Speed Up System Design . Electronic Design . March 13, 2024.
  78. GSA Website Dr. Morris Chang Exemplary Leadership Award Winner Retrieved November 28, 2020
  79. Web site: 2 December 2019 . 50 Best ESG Companies: A List Of Today's Top Stocks For Environmental, Social And Governance Values . Investor's Business Daily.
  80. Great Place to Work PEOPLE Companies that Care 2020 Retrieved November 28, 2020
  81. Web site: Cadence . 2020-04-28 . Fortune . en.
  82. Web site: McLaren Racing - McLaren Racing and Cadence announce new multi-year partnership . 2022-11-18 . www.mclaren.com . en.
  83. News: April 18, 2023 . San Francisco 49ers partner with Cadence Design Systems on multi-year technology partnership . . March 13, 2024.
  84. NY Times Cadence to Buy Gateway Design Retrieved January 20, 2005
  85. NY Times Cadence Acquires Software Company Retrieved April 11, 1990
  86. UPI Cadence Design, Valid Logic Retrieved October 2, 1991
  87. SemiEngineering Valid Logic Systems Retrieved November 29, 2020
  88. Funding Universe Cadence Design Systems History Retrieved January 20, 2005
  89. News: October 4, 1996 . Cadence Design to acquire High Level Design Systems . .
  90. https://www.latimes.com/archives/la-xpm-1996-10-29-fi-59090-story.html Cadence to Buy Cooper & Chyan
  91. Wall Street Journal Cadence Design Systems Agrees To Purchase Cooper & Chyan Retrieved October 29, 1996
  92. Web site: Cadence Acquires CCT and UniCAD . edn.com . EDN . 8 December 2022 . 1996-11-21.
  93. News: Stephen Nellis . January 18, 2022 . Focus: Cadence Design Systems aims to cash in on new custom-chip era . .
  94. News: Cadence 'Formally' Acquires BLDA – Cadence Design Systems buys Bell Labs Design Automation from Lucent Technologies. 20 August 2021. Electronic News. 1998.
  95. News: Cadence to Acquire Quickturn Design. 3 April 2015. The New York Times. 10 December 1998.
  96. Web site: Update: Cadence gets lift from Orcad purchase. EETimes.
  97. EE Times Cadence buys IBM's design-for-test tools business Retrieved October 1, 2002
  98. EDN Cadence Acquires Celestry Retrieved January 16, 2003
  99. News: September 15, 2003 . Cadence struggles to regain rhythm . .
  100. Web site: Cadence buys formal tool vendor Verplex. Santarini. Michael. July 14, 2003. EE Times. December 21, 2017.
  101. Web site: Cadence acquires analog layout vendor Neolinear. April 6, 2004. EE Times.
  102. EE Times Cadence completes acquisition of Verisity Retrieved April 7, 2005
  103. Web site: Cadence bought DFM startup Praesagus for $26 million.
  104. Electronic Design Cadence Acquires Invarium To Beef Up DFM Technology Retrieved July 22, 2007
  105. Web site: Cadence Design Systems buys chip design co., Clear Shape VentureBeat. venturebeat.com. 17 August 2007 . en-US. 2017-12-20.
  106. EDN Cadence to acquire Clear Shape Retrieved January 20, 2005
  107. Web site: Cadence buys IP reuse specialist Chip Estimate. Leopold. George. March 21, 2008. EE Times. December 20, 2017.
  108. EDN Cadence to buy Denali for $315 million Retrieved May 13, 2010
  109. EE Times Cadence Buys Altos Design Automation Retrieved May 10, 2011
  110. Silicon Valley Business Journal Cadence acquires Altos Design Automation Retrieved May 10, 2011
  111. EE Times Cadence acquires power specialist Azuro Retrieved July 12, 2011
  112. Evertiq Cadence acquires Sigrity Retrieved July 3, 2012
  113. EE News Europe Cosmic Circuits Acquisition helps Cadence to expand IP Portfolio Retrieved February 7, 2013
  114. EE Times Cadence buys analog IP startup Retrieved February 7, 2013
  115. EETimes Cadence to acquire Tensilica Retrieved March 11, 2013
  116. VentureBeat Cadence buys chip design firm Tensilica for $380m Retrieved March 11, 2013
  117. EE Times Cadence buying Evatronix to boost IP pool Retrieved May 7, 2013
  118. New Electronics Cadence Buys Forte, Looks to build HLS offering Retrieved February 6, 2014
  119. Electronics 360 The Math Backs Cadence's Forte Acquisition Retrieved February 6, 2014
  120. eeNews Embedded Cadence Grows formal verification profile with Jasper DA buyout Retrieved April 23, 2014
  121. Electronics 360 Cadence Keeps Consolidating with Jasper Purchase Retrieved April 22, 2014
  122. EENews Analog Cadence acquires parallel logic simulation speed-up tech with Rocketick purchase Retrieved April 13, 2016
  123. eeNews Analog Cadence grows high-speed communications IP offering with nusemi dea Retrieved November 2, 2017
  124. Silicon Valley Business Journal Cadence Design Systems to acquire AWR Corp. from National Instruments for $160M Retrieved December 2, 2019
  125. New Electronics Cadence makes Integrand acquisition Retrieved February 17, 2020
  126. everythingRF Cadence Accelerates Innovation in 5G RF Communications by Acquiring Integrand Retrieved February 14, 2020
  127. CBC A new chapter: Silicon Valley firm buys St. John's tech company Retrieved August 13, 2020
  128. Betakit Newfoundland's InspectAR Acquired by Cadence Design Systems Retrieved August 13, 2020
  129. Cadence News Releases Cadence completes acquisition of Future Facilities Retrieved July 26, 2022
  130. News: Silicon Valley firm seeks to acquire Santa Fe's OpenEye Scientific . August 23, 2022 . . Teya . Vitu.
  131. EENews Europe buys analog EDA tool pioneer Pulsic Retrieved June 25, 2024
  132. Web site: Cadence completes acquisition of PHY IP assets from Rambus - News . 2023-09-17 . Silicon Semiconductor . en.
  133. Web site: Cadence to Acquire Intrinsix Corporation from CEVA . 2023-09-21 . www.prnewswire.com . en.
  134. Web site: Cadence Acquires Invecas to Accelerate System Realization . www.businesswire.com . en.
  135. Web site: Nellis . Stephen . Bajwa . Arsheeya . March 5, 2024 . Cadence to buy BETA CAE Systems for $1.24 billion . March 5, 2024 . Reuters.
  136. https://www.bloomberg.com/news/articles/2001-09-02/the-avant-saga-does-crime-pay Business Week (pay wall)
  137. http://www.eedesign.com/article/showArticle.jhtml?articleId=10806192 EEDesign article
  138. http://direct.bl.uk/research/05/0C/RN149436533.html Cadence v. Avanti: The UTSA and California Trade Secret Law
  139. https://www.nytimes.com/2005/03/20/us/in-courts-threats-have-become-a-fact-of-life.html In Courts, Threats Become Alarming Fact of Life
  140. http://www.eetimes.com/electronics-news/4049672/Odd-legal-saga-takes-an-ugly-turn Odd legal saga takes an ugly turn
  141. http://www.eetimes.com/news/design/business/showArticle.jhtml?articleID=181401328 Jury finds Mohsen guilty of perjury, obstruction of justice
  142. Bailey, Brian (September 6, 2011). "Amr Mohsen – A story so bizarre…" EETimesRetrieved September 5, 2021
  143. Santarini, Michael (February 19, 2003). "Mentor loses patent suit against Cadence" EETimesRetrieved September 5, 2021
  144. https://www.eetimes.com/cadence-sues-berkeley-design-automation Cadence sues Berkeley Design Automation
  145. https://www.eenewseurope.com/news/mentor-buys-berkeley-da-after-cadence-lawsuit Mentor buys Berkeley DA after Cadence lawsuit