• Cadence Orcad Software Download
• Cadence Orcad Suite
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• Cadence Orcad Allegro

OrCAD Systems Corporation was a software company that made OrCAD, a proprietary software tool suite used primarily for electronic design automation (EDA). The software is used mainly by electronic design engineers and electronic technicians to create electronic schematics, perform mixed-signal simulation and electronic prints for manufacturing printed circuit boards. OrCAD was taken over by Cadence Design Systems in 1999 and was integrated with Cadence Allegro since 2005.

The name OrCAD is a portmanteau, reflecting the company and its software's origins: Oregon + CAD.

• 2Products
  • 2.2OrCAD EE PSpice

OrCAD 16.20.002 is free to download from our software library. The software lies within Development Tools, more precisely IDE. OrCAD is sometimes distributed under different names, such as 'OrCAD Demo', 'Release OrCAD', 'OrCAD Simulate'. The actual developer of the program is OrCAD. As you know, the startup scene in China is huge and so are the cracked software forums. Here, I present to you one such finding; Cadence OrCAD 17.2 in full working condition. Installing it is extremely easy. Simply follow the few steps below and you will be all set to run OrCAD 17.2.

Company[edit]

Founded in 1985 by John Durbetaki, Ken and Keith Seymour as 'OrCAD Systems Corporation' in Hillsboro, Oregon, the company became a supplier of desktop electronic design automation (EDA) software. In 1984 Durbetaki began designing an expansion chassis for the IBM PC. Durbetaki, who had left Intel Corp. after five years as an engineer and project manager, decided, along with brothers Keith and Ken Seymour, to start his own company to develop add-on instrumentation for the PC.^[1] Durbetaki began creating his own schematic capture tool for his use in the PC expansion chassis project; but eventually shelved the hardware project entirely in favor of developing low-cost, PC-based CAD software. The company's first product was SDT (Schematic Design Tools) for DOS, which shipped first in late 1985.

In 1986, OrCAD hired Peter LoCascio to develop sales and co-founder Ken Seymour left the company. The flagship SDT product was soon followed with a digital simulator, VST (Verification and Simulation Tools) and printed circuit board (PCB) layout tools.^[2]

Over time, OrCAD's product line broadened to include Windows-based software products to assist electronics designers in developing field-programmable gate arrays (FPGAs), including complex programmable logic devices (CPLDs). In 1991, Durbetaki, then CEO and head of R&D, left the company. He was succeeded as CEO by Michael Bosworth.

In June 1995, OrCAD acquired Massteck Ltd.,^[3][4] a small company that offered a printed circuit board layout tool and a sophisticated autorouter,^[5] and Intelligent Systems Japan, KK, OrCAD's distributor in Japan. In 1996, OrCAD made a public offering.^[6][7]

In late 1997 and early 1998, OrCAD and MicroSim Corporation merged, a business combination that ultimately proved to be disappointing. MicroSim has been a supplier of PC-based analog and mixed-signal simulation software for designing printed circuit board systems (PSpice).^[8][9]

On 16 July 1999, the company and its products were acquired by former competitor Cadence Design Systems.^[10][11][12]

OrCAD Layout has been discontinued. The latest iteration of OrCAD CIS schematic capture software has the ability to maintain a database of available integrated circuits. This database may be updated by the user by downloading packages from component manufacturers, such as Analog Devices^[13] and others. Another announcement was that ST Microelectronics will offer OrCAD PSpice models for all the power and logic semiconductors, since PSpice is the most used circuit simulator.^[14]Intel offers reference PCBs designed with Cadence PCB Tools in the OrCAD Capture format for embedded and personal computers.

Products[edit]

OrCAD is a suite of products for PCB Design and analysis that includes a schematic editor (Capture), an analog/mixed-signal circuit simulator (PSpice) and a PCB board layout solution (PCB Designer Professional).

OrCAD Capture[edit]

OrCAD Capture is a schematic capture application, and part of the OrCAD circuit design suite.^[15]

Unlike NI Multisim, Capture does not contain in-built simulation features, but exports netlist data to the simulator, OrCAD EE. Capture can also export a hardware description of the circuit schematic to Verilog or VHDL, and netlists to circuit board designers such as OrCAD Layout, Allegro, and others.^[16]

Capture includes a component information system (CIS), that links component package footprint data or simulation behavior data, with the circuit symbol in the schematic.^[16]

Capture includes a Tcl/Tk scripting functionality that allows users to write scripts, that allow customization and automation. Any task performed via the GUI may be automated by scripts.^[16]

The OrCAD Capture Marketplace enables customers to share and sell add-ons and design resources. Such add-ons can customize the design environment and add features and capabilities.^[16]

Capture can interface with any database which complies with Microsoft's ODBC standard etc. Data in an MRP, ERP, or PDM system can be directly accessed for use during component decision-making process.

OrCAD EE PSpice[edit]

OrCAD EE PSpice is a SPICEcircuit simulator application for simulation and verification of analog and mixed-signal circuits.^[17] PSpice is an acronym for Personal Simulation Program with Integrated Circuit Emphasis.

Cadence Orcad Software Download

OrCAD EE typically runs simulations for circuits defined in OrCAD Capture, and can optionally integrate with MATLAB/Simulink, using the Simulink to PSpice Interface (SLPS).^[18] OrCAD Capture and PSpice Designer^[19] together provide a complete circuit simulation and verification solution with schematic entry, native analog, mixed signal, and analysis engines.

PSpice was a modified version of the academically developed SPICE, and was commercialized by MicroSim in 1984. MicroSim was purchased by OrCAD a decade later in 1998.

OrCAD PSpice Designer is available in two options: PSpice Designer and PSpice Designer Plus.

OrCAD PSpice Designer includes OrCAD Capture and OrCAD PSpice solution. An upgrade option to PSpice Designer Plus provides the PSpice Advanced Analysis^[20] simulation engine for functional simulation and improvement in design yield and reliability.

The PSpice Advanced Analysis simulation capabilities covers various analyses- Sensitivity, Monte Carlo, Smoke (Stress), Optimizer, and Parametric Plotter providing in depth understanding of circuit performance beyond basic validation.

The OrCAD PSpice Simulink - PSpice Integration(SLPS)^[21] provides co-simulation and helps verify system level behavior.

A circuit to be analyzed using PSpice is described by a circuit description file, which is processed by PSpice and executed as a simulation. PSpice creates an output file to store the simulation results, and such results are also graphically displayed within the OrCAD EE interface.

OrCAD EE is an upgraded version of the PSpice simulator, and includes automatic circuit optimization and support for waveform recording, viewing, analysis, curve-fitting, and post-processing.^[17][22] OrCAD EE contains an extensive library of models for physical components, including around 33,000 analog and mixed-signal devices and mathematical functions.^[17] OrCAD EE also includes a model editor, support for parameterized models, auto-convergence and checkpoint restart, several internal solvers and a magnetic part editor.

History[edit]

SPICE was first developed at the University of California, Berkeley, in the early 1970s. Subsequently an improved version SPICE 2 was available in the mid-1970s especially to support computer aided design.

PSpice was released in January 1984, and was the first version of UC Berkeley SPICE available on an IBM Personal Computer. PSpice later included a waveform viewer and analyser program called Probe. Subsequent versions improved on performance and moved to DEC/VAX minicomputers, Sun workstations, Apple Macintosh, and Microsoft Windows. Version 3.06 was released in 1988, and had a 'Student Version' available which would allow a maximum of up to ten transistors to be inserted. PSpice (even the student version) increases the students' abilities to understand the behavior of electronic components and circuits.^[23][24]

Analyses[edit]

The type of simulation performed by PSpice depends on the source specifications and control statements. PSpice supports the following types of analyses:

• DC Analysis - for circuits with time–invariant sources (e.g. steady-state DC sources). It calculates all nodal voltages and branch currents over a range of values. Supported types include Linear sweep, Logarithmic sweep, and Sweep over List of values.
• Transient Analysis - for circuits with time variant sources (e.g., sinusoidal sources/switched DC sources). It calculates all nodal voltages and branch currents over a time interval and their instantaneous values are the outputs.
• AC Analysis - for small signal analysis of circuits with sources of varying frequencies. It calculates the magnitudes and phase angles of all nodal voltages and branch currents over a range of frequencies.

The operating temperature of an analysis can be set to any desired value, and nodal parameters are assumed to be measured at a nominal temperature, by default 27 °C.

PSpice User Community

PSpice.com is a PSpice User Community, an open platform dedicated to PSpice Spice circuit simulation discussions. It is a web portal with access to resources for all things related to PSpice circuit simulator. Users can find datasheets, application notes, tutorials, videos, and also information about regional PSpice training events and webinars. PSpice web portal provides extensive model library of more than 33,000 PSpice models which are also easily available with the PSpice Lite Download.

PSpice Lite version, which can be used by students comes with full functionality of the software, limited only by size and complexity.

OrCAD PCB Designer[edit]

OrCAD PCB Designer is a printed circuit board designer application, and part of the OrCAD circuit design suite.^[25] PCB Designer includes various automation features for PCB design, board-level analysis and design rule checks (DRC).

The PCB design may be accomplished by manually tracing PCB tracks, or using the Auto-Router provided. Such designs may include curved PCB tracks, geometric shapes, and ground planes.^[26]

PCB Designer integrates with OrCAD Capture, using the component information system (CIS) to store information about a certain circuit symbol and its matching PCB footprint.^[16][25]

See also[edit]

• Specctra for OrCAD (Allegro PCB Router)

References[edit]

1. ^Oregon Business, 1 May 1989, Paul Gerhards, 'Designing software for 'real' engineers: OrCAD Systems Corp.', accessed 2012-04-01
2. ^EDN, 'Putting a new spin on an old approach: Software design project management at OrCAD Systems', accessed 2012-04-01
3. ^The Free Library, 'ORCAD COMPLETES ACQUISITION OF MASSTECK; Company Marks Tenth Anniversary With an Expanded Design Desktop for Windows: OrCAD Capture, Layout, Layout Plus, and Simulate; OrCAD Home Page Now on Internet', accessed 2012-04-01
4. ^Highbeam Business, 'Orcad absorbs Massteck. (Massteck's MacEDA circuit board design tool also acquired)', accessed 2012-04-01
5. ^EDN, 'Improving on PCB design'Archived 2012-09-07 at Archive.today, accessed 2012-04-01
6. ^All Business, 'OrCAD completes its initial public offering', accessed 2012-02-09
7. ^Blog, 'Ethical Capitalism', accessed 2011-01-12
8. ^Electronic News, 'OrCAD, MicroSim plan $26M merger', accessed 2012-04-01
9. ^Electronics Weekly, 'OrCad/MicroSim finish dream merger', accessed 2012-04-01
10. ^Portland Business Journal, 'OrCAD needed a suitor, found one in Cadence', accessed 2012-04-01
11. ^Electronic News, 'Cadence Buys OrCAD for $121M', accessed 2012-02-09
12. ^Bloomberg Business Week, 'Company Overview of OrCAD, Inc.', accessed 2012-04-01
13. ^http://www.analog.com/en/design-tools/dt-symbols-footprints/design-center/index.html
14. ^EETimes, 'ST licenses Cadence's OrCAD PSpice', accessed 2010-09-08
15. ^OrCAD Capture, OrCAD Website
16. ^ ^abcdeOrCAD Features, OrCAD Website
17. ^ ^abcOrCAD EE PSpice Designer, OrCAD Website
18. ^PSpice Matlab Simulink Integration - Overview, OrCAD Website
19. ^PSpice Designer
20. ^PSpice Advanced Analysis
21. ^OrCAD PSpice Simulink- PSpice Integration(SLPS)
22. ^OrCAD EE FeaturesArchived 2015-03-02 at the Wayback Machine, OrCAD Website
23. ^Iqbal, Sajid; Sher, Hadeed; Qureshi, Suhail Aftab (2007). 'Pspice in undergraduate and graduate electrical engineering courses'. 57. IEEEP Journal.Cite journal requires |journal= (help)
24. ^Azemi, Asad; Yaz, Edwin E. (1994). PSpice and MATLAB in undergraduate and graduate electrical engineering courses. Frontiers in Education Conference, 1994. IEEE Conference Proceedings.
25. ^ ^abOrCAD PCB Designer, OrCAD Website
26. ^OrCAD PCB Designer Features, OrCAD Website

External links[edit]

Cadence Design Systems, Inc. is an American multinationalelectronic design automation (EDA) software and engineering services company, founded in 1988 by the merger of SDA Systems and ECAD, Inc. The company produces software, hardware and silicon structures for designing integrated circuits, systems on chips (SoCs) and printed circuit boards.

• 4Lawsuits
• 5Acquisitions

Overview[edit]

Cadence Design Systems, headquartered in San Jose, California, in the North San Jose Innovation District, is a supplier of electronic design technologies and engineering services in the electronic design automation (EDA) industry. The company develops software used to design chips^[1] and printed circuit boards,^[2] as well as intellectual properties (IP) covering a broad range of areas, including interfaces, memory, analog, SoC peripherals, data plane processing units, and verification.

Cadence products primarily target SoC design engineers and are used to move a design into packaged silicon, with products for custom and analog design, digital design, mixed-signal design, verification, and package/PCB design, as well as a broad selection of IP, and also hardware for emulation and FPGA prototyping.

To help integrate, verify, and implement complex digital SoCs, there are solutions that encompass design IP, timing analysis and signoff, services, and tools and methodologies. The company also provides products that assist with the development of complete hardware and software platforms that support end applications.^[3]

History[edit]

Cadence Design Systems was the result of a merger perfected in 1988 of Solomon Design Automation (SDA), co-founded in 1983 by Richard Newton, Alberto Sangiovanni-Vincentelli and James Solomon, and ECAD, co-founded by Glen Antle and Paul Huang in 1982. Joseph Costello was appointed as CEO from 1988–1997, and Cadence became the largest EDA company during his tenure.

Following Costello as CEO were Jack Harding (from 1997–99), Ray Bingham (from 1999-2005), and Mike Fister (from 2005-2008).

Following the resignation of Fister, the board appointed Lip-Bu Tan as acting CEO.^[4] In January 2009, the company confirmed Lip-Bu Tan as President and CEO. Tan had been most recently CEO of Walden International, a venture capital firm, and remains chairman of the firm. He has served on the Cadence Board of Directors since 2004, where he served on the Technology Committee for four years.

In 2013, Cadence celebrated its 25th anniversary. In 2015, it was named one of the top 100 places to work by Fortune magazine.^[5]

At the end of 2016, the company employed more than 7,100 people and reported 2016 revenues of approximately $1.82 billion.^[6] In November 2007 Cadence was named one of the '50 Best Places to Work in Silicon Valley' by San Jose Magazine.^[7]

According to Glassdoor, it is the fifth highest-paying company for employees in the United States as of April 2017.^[8]

Products[edit]

Cadence's product offerings are targeted at various types of design and verification tasks which include:

• Custom IC technologies - Virtuoso Platform - Tools for designing full-custom integrated circuits;^[9] includes schematic entry, behavioral modeling (Verilog-AMS), circuit simulation, custom layout, physical verification, extraction and back-annotation. Used mainly for analog, mixed-signal, RF, and standard-cell designs, but also memory and FPGA designs.
• Digital & Signoff technologies - RTL to GDS II implementation: Genus Synthesis, Conformal Equivalence Checker, Stratus High Level Synthesis, Joules Power Analysis, Innovus Place & Route, Quantus RC Extraction, Tempus Timing Signoff, Voltus Power Integrity Signoff, Modus Automatic Test Pattern Generation.
• System & Verification technologies - Verification Suite - JasperGold Formal Verification, Xcelium simulation, Palladium Z1 emulation, Protium S1 FPGA prototyping, Perspec software-driven tests, vManager plan & metrics, Indago debug, and Verification IP catalog.
• Intellectual Property - Design IP targeting areas including memory / storage / high-performance interface protocols (USB or PCIe controllers and PHYs), Tensilica DSP processors for audio, vision, wireless modems and convolutional neural nets. Tensilica DSP processors IP^[10] include:
  • Tensilica Vision DSPs for Imaging, Vision and AI processing
  • Tensilica HiFi DSPs for Audio/Voice/Speech processing
  • Tensilica Fusion DSPs for IoT
  • Tensilica ConnX DSPs for Radar, Lidar, and Communications processing
  • Tensilica DNA Processor Family for AI acceleration
• PCB & Packaging technologies: Allegro Platform - Tools for co-design of integrated circuits, packages, and PCBs,^[11] including the Specctraauto-router. OrCAD/PSpice - Tools for smaller design teams and individual PCB designers.,^[11] and Sigrity technologies - Tools for signal and power verification for system-level signoff verification and interface compliance.^[12]

In addition to EDA software, Cadence provides contracted methodology and design services as well as silicon design IP, and has a program aimed at making it easier for other EDA software to interoperate with the company's tools.

Lawsuits[edit]

Avanti Corporation[edit]

Cadence was involved in a 6-year-long legal dispute^[13] with Avanti Corporation, 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'.^[13] 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.^[14] The case resulted in a number of legal precedents.^[15]

Mentor Graphics[edit]

The Cadence group Quickturn was also involved in a series of legal events with Mentor Graphics/Aptix. Mentor purchased rights to an Aptix patent, then sued Cadence. In this case, the CEO of Aptix, Amr Mohsen, forged a notebook in order to make the patent case stronger. When suspicions were raised, he staged a break-in of his own car to get rid of the evidence, resulting in charges of obstruction of justice. Trying to avoid this, he attempted to flee the country, only to be caught with an illegal passport and a pile of cash. While in jail for this offense, he was recorded offering money to intimidate witnesses and kill the judge.^[16] In order to fight the new charges, he tried to feign psychological problems, but left a trail of evidence of his research into this defense, and how it might be done. He was charged with attempting to delay a federal trial by feigning incompetency,^[17] but was convicted anyway.^[18] According to the lawyers concerned, the original notebooks were not needed for the trial. The patent filing date, which was not in dispute, would have sufficed.

Acquisitions[edit]

Timeline[edit]

• August 1993: acquired Comdisco Systems Inc, a provider of network design and optimization software.
• May 1997: acquired Cooper & Chyan Technology (CCT), a provider of PCB and IC automatic place and router software solutions (Specctra).^[19]
• December 1998: acquired Quickturn Design Systems, Inc., a market leader in microchip emulation.^[20]
• June 1999: acquired OrCAD Systems, a market leader in shrink-wrap PCB Design Tools.^[21]
• October 2002: acquired IBM's Test Design Automation group.^{[citation needed]}
• January 2003: acquired Celestry Design Inc, a provider of fast-spice and reliability simulators.
• September 2003: acquired Verplex Systems, a provider of Formal Verification products, Conformal Solutions and Blacktie Property Checker.^[22]
• April 6, 2004: acquired Neolinear Technology, a privately held company specializing in rapid analog design technology.^[23]
• April 7, 2005: acquired Verisity, Ltd., a provider of verification process automation solutions ($315 million in cash).
• In 2007, the company began talks with Kohlberg Kravis Roberts and Blackstone Group regarding a possible sale of the company.^[24]
• July 12, 2007: acquired Invarium, a photolithography specialist.
• August 15, 2007: acquired Clearshape, a developer of Design for Manufacturability (DFM) technology.^[25]
• March 11, 2008: acquired ChipEstimate.com, an IP Portal and developer of IC planning and IP reuse management tools.^[26]
• August 15, 2008: Cadence withdrew a $1.6 billion offer to purchase rival Mentor Graphics.^[27]
• June 17, 2010: completed acquisition of Denali Software.^[28]
• May 10, 2011: acquired Altos Design Automation, Inc., vendor of standard and complex cell libraries for the delivery of complex SoCs at advanced nodes.^[29]
• July 12, 2011: acquired Azuro, creator of clock concurrent optimization technology.^[30]
• July 2, 2012: acquired Sigrity, a leader in high-speed PCB and IC packaging analysis^[31]
• February, 2013: acquired Cosmic Circuits, a provider of analog and mixed signal intellectual property (IP) cores. Cosmic Circuits offers IP products in connectivity and mixed-signal technologies in the 40 nm and 28 nm process nodes, with 20 nm and FinFET in development.^[32] The acquisition was completed in May 2013.
• March, 2013: acquired Tensilica, known for Dataplane Processing Units (DPU). Tensilica provides configurable and extensible processors along with DPUs for audio, baseband, imaging etc. It has 200 licensees and has shipped 2 billion cores so far.^[33]
• June, 2013: completed acquisition of the IP business of Evatronix, SA SKA of Poland. This acquisition brings to Cadence IP including certified USB 2.0/3.0, MIPI, display, and storage controllers.^[34]
• February 14, 2014: acquired Forte Design Systems, a provider of high-level synthesis (HLS) software products. This includes Cynthesizer, a SystemC-based behavioral synthesis tool that enables design creation at a higher level of abstraction.
• June 16, 2014: completed acquisition of Jasper Design Automation, Inc., a market and technology leader in the fast-growing formal analysis sector.^[35]
• April 28, 2016: completed acquisition of Rocketick Technologies, Ltd., an Israel-based pioneer and leading provider of multi-core parallel simulation.^[36]
• November 1, 2017: completed acquisition of nusemi inc, a Mountain View based provider of serial communication IP ^[37]. The acquisition resulted in Cadence's leading position in the high speed serial communication market.^[38], ^[39].

The company has also acquired Valid Logic Systems, High Level Design (HLD), UniCAD, CadMOS, Ambit Design Systems, Simplex, Silicon Perspective, Plato and Get2Chip.

Cadence Orcad Suite

Denali Software[edit]

Denali Software, Inc. was an American software company, based in Sunnyvale, California, now acquired by Cadence.^[40] The company produces electronic design automation (EDA) software, intellectual property (IP) and design cores and platforms for memory, other standard interfaces and system-on-chip (SoC) design and verification. It has its engineering offices in Sunnyvale, Austin and Bangalore. Incorporated in 1996, Denali is headquartered in Sunnyvale, California and serves the global electronics industry with direct sales and support offices in North America, Europe, Japan and Asia.

On May 2010, Cadence Design Systems announced that it would acquire Denali for $315 million.^[41]

Cadence

Valid Logic Systems[edit]

Valid Logic Systems was one of the first commercial electronic design automation (EDA) companies, now acquired by Cadence. It was founded in the early 1980s,^[42] along with Daisy Systems Corporation and Mentor Graphics, collectively known as DMV. The engineering founders were L. Curtis Widdoes,^[43] Tom McWilliams^[44] and Jeff Rubin,^[45] all of whom had worked on the S-1 supercomputer project at Livermore Labs.

Valid acquired several companies such as Telesis (PCB layout),^[46] Analog Design Tools,^[47] and Calma (IC layout). In turn, Valid was acquired by Cadence Design Systems in the early 90s.^[48]

Valid built both hardware and software, for schematic capture, logic simulation, static timing analysis, and packaging. Much of the initial software base derived from SCALD ('Structured Computer-Aided Logic Design'), a set of tools developed to support the design of the S-1 supercomputer at Lawrence Livermore National Laboratory.^[49] Later, Valid expanded into IC design tools and into printed circuit board layout.

At first, Valid ran schematic capture on a proprietary UNIX workstation, the SCALDSystem, with static timing analysis, simulation, and packaging running on a VAX or IBM-compatible mainframe. However, by the mid-1980s, general purpose workstations were powerful enough, and significantly cheaper. Companies such as Mentor Graphics and Cadence Design Systems sold software only for such workstations. By 1990, almost all Valid software was also running on workstations, primarily those from Sun Microsystems.

Notable persons[edit]

• Alberto Sangiovanni-Vincentelli, co-founder^[50]
• Richard Newton, co-founder
• James Solomon, co-founder
• Ken Keller, co-founder. Inventor of EDA framework including data store, portable window system, and layout editor
• Jiri Soukup, co-founder
• Ken Kundert, fellow. Creator of the Spectre circuit simulation family of products (including SpectreRF) and the Verilog-A analog hardware description language
• Joseph Costello, CEO, 1988–1997
• Lip-Bu Tan, CEO, 2009–present
• Anirudh Devgan, President, 2017-present

See also[edit]

References[edit]

1. ^Design on Diagonal Path in Pursuit of a Faster Chip, John Markoff, The New York Times, February 26, 2007
2. ^Cadence Acquires Software Company, The New York Times, April 11, 1990. Article describes Cadence acquiring a printed circuit design software company.
3. ^'Resource Library'. www.cadence.com.
4. ^Dylan McGrath, EE Times, 'Analysis: With Fister gone, Cadence layoffs may be next'. Retrieved March 3rd, 2012.
5. ^'Cadence'. Fortune. 2015-03-05. Retrieved 2017-04-21.
6. ^Source: Cadence Design Systems fact sheet, http://www.cadence.com/rl/Resources/financial_reports/cadenceataglance.pdf
7. ^'Best Places to Work For'(PDF). Archived from the original on 21 November 2008. Retrieved 12 July 2017.CS1 maint: BOT: original-url status unknown (link)
8. ^Verhage, Julie (April 12, 2017). 'These Are the Highest-Paying Companies in America'. Bloomberg Business. Retrieved April 18, 2017.
9. ^'Course description from University of Colorado'. Archived from the original on 2007-06-24. Retrieved 2007-06-10.
10. ^'Tensilica Customizable Processor and DSP IP'. ip.cadence.com. Retrieved 2019-05-16.
11. ^ ^ab'UNIX Software and CAD tools'. Carleton University. Archived from the original on 2012-04-30. Retrieved 2007-06-10.
12. ^Sigrity
13. ^ ^abBusiness Week overview of the entire case, after the criminal trial but before the purchase by Synopsys.
14. ^EEDesign article about the final settlement.
15. ^Cadence v. Avanti: The UTSA and California Trade Secret LawArchived 2012-07-07 at Archive.today, Danley, J., Berkeley Technology Law Journal, 2004, Vol 19; Part 1, pages 289-308
16. ^In Courts, Threats Become Alarming Fact of Life, Deborah Sontag, The New York Times, 20 March 2005
17. ^Odd legal saga takes an ugly turn, Richard Goering, EE Times, 02 August 2004
18. ^Jury finds Mohsen guilty of perjury, obstruction of justice, Dylan McGrath, EE Times, 28 February 2006
19. ^'Cadence Design Systems Annual Report, 1997'., page 14
20. ^'Cadence to Acquire Quickturn Design'. The New York Times. 10 December 1998. Retrieved 3 April 2015.
21. ^'Update: Cadence gets lift from Orcad purchase'. EETimes.
22. ^Santarini, Michael (July 14, 2003). 'Cadence buys formal tool vendor Verplex'. EE Times. Retrieved December 21, 2017.
23. ^Times, EE (April 6, 2004). 'Cadence acquires analog layout vendor Neolinear'. EE Times.
24. ^Specialized Software Maker Is Said to Be in Buyout Talks, Andrew Ross Sorkin and Michael J. de la Merced, The New York Times,Published: June 4, 2007
25. ^'Cadence Design Systems buys chip design co., Clear Shape | VentureBeat'. venturebeat.com. Retrieved 2017-12-20.
26. ^Leopold, George (March 21, 2008). 'Cadence buys IP reuse specialist Chip Estimate'. EE Times. Retrieved December 20, 2017.
27. ^'Cadence Withdraws Proposal to Acquire Mentor Graphics'.
28. ^'Cadence Completes Acquisition of Denali'. 17 Jun 2010. Retrieved 27 May 2012.
29. ^'Cadence Acquires Altos Design Automation'.
30. ^Former Azuro CEO Explains Clock Concurrent Optimization
31. ^[1]
32. ^'Cadence Expands IP Portfolio with Agreement to Acquire Cosmic Circuits'.
33. ^'Cadence to Acquire Tensilica'.
34. ^Source: http://www.cadence.com/cadence/newsroom/press_releases/Pages/pr.aspx?xml=061313_Evatronix
35. ^Source: http://www.cadence.com/cadence/newsroom/press_releases/pages/pr.aspx?xml=061614_jasper
36. ^Source: https://www.prnewswire.com/news-releases/cadence-completes-acquisition-of-rocketick-technologies-300259222.html
37. ^Source: https://www.cadence.com/content/cadence-www/global/en_US/home/company/newsroom/press-releases/pr/2017/cadence-to-expand-high-speed-communications-ip-portfolio-with-ac.html
38. ^Source: https://community.cadence.com/cadence_blogs_8/b/breakfast-bytes/posts/nusemi
39. ^ Source: https://www.businesswire.com/news/home/20190514005428/en/Cadence-Tapes-112G-Long-Reach-SerDes-IP-Samsung
40. ^Denali Software. 'EDA / IP Solutions for SoC Design and Verification – Denali Software'.
41. ^'EE Times - Electronic Engineering Times - Connecting the Global Electronics Community'. EETimes.
42. ^Kenneth N. Gilpin; Todd S. Purdum (November 14, 1985). 'BUSINESS PEOPLE; Intel Manager Becomes President of Valid Logic'. The New York Times. Retrieved 2013-10-17.
43. ^Donald MacKenzie (1998). Knowing machines: essays on technical change. MIT Press. ISBN0-262-63188-1.
44. ^Timothy Prickett Morgan (13 April 2009). 'Big-iron brains powers Schooner appliance power - Putting a ding in server size'. Servers. The Register. Retrieved 2011-09-22.
45. ^'Electronic Business'. 9. Cahners. 1983: 231.Cite journal requires |journal= (help)
46. ^'Business: Valid Logic to Buy Firm'. San Jose Mercury News. February 6, 1987. p. 13E. Retrieved 2013-10-17.
47. ^'Company News: Valid Logic to Buy Analog Design'. The New York Times. November 23, 1988. Retrieved 2013-10-17.
48. ^'Business: Cadence to Buy Rival Valid'. San Jose Mercury News. October 3, 1991. p. 1E. Retrieved 2013-10-17.
49. ^McWilliams, T.M.; Widdoes, L.C. Jr.; Wood, L.L. (1977-09-30). 'Advanced digital processor technology base development for Navy applications: the S-1 project'. Lawrence Livermore National Laboratory.Cite journal requires |journal= (help)
50. ^Bailey, Brian (December 20, 2017). 'Alberto Sangiovanni-Vincentelli receives EDAA Lifetime Achievement Award'. EE Times.

Cadence Orcad Allegro

External links[edit]