Mentor Graphics Pads Version History -

PADS (Personal Automated Design System) has evolved over four decades from a pioneering DOS-based tool into a sophisticated multi-tier design suite now under the Siemens EDA umbrella. Early History and Origins (1985–2000)

1985: Initial Release: PADS was created by Gene Marsh and first released for the DOS operating system. At launch, it was positioned as an affordable option at roughly $495 per seat.

Late 1990s: Strategic Acquisitions: The PADS brand expanded its capabilities by acquiring industry-standard simulation and embedded software tools: 1997: Acquisition of HyperLynx for signal integrity. 1998: Acquisition of ACT (Accelerated Technology).

2000: Corporate Transition: PADS was sold to Innoveda, a joint venture between Kyoden and ViewLogic. The Mentor Graphics Era (2001–2017)

Mentor Graphics acquired Innoveda in 2002 for approximately $160 million, officially bringing PADS into its portfolio.

PADS 2004/2005/2007: These releases focused on improving the core PADS Layout, Logic, and Router tools.

PADS 2007.3: Introduced major GUI enhancements and integrated HyperLynx Analog.

PADS 9.x Series (2009–2014): This era stabilized the "classic" PADS flow, with versions 9.0 through 9.5 refining integration with DxDesigner and HyperLynx.

2014: The VX Revolution: Mentor shifted to the VX (Version X) nomenclature to align PADS with its high-end Xpedition technology.

PADS Professional: Launched as a high-tier offering, this version utilized Xpedition's layout engine rather than the classic PADS code base. The Siemens Era (2017–Present)

Siemens purchased Mentor Graphics in 2017 for $4.5 billion, eventually rebranding the division as Siemens EDA.

Modern VX Versions: Recent development has continued under the VX.2.x cycle:

VX.2.8 (2020): Added enhanced usability and efficiency features based on community feedback.

VX.2.11 (2022): Introduced curved teardrops and multi-plow routing with trace shielding.

VX.2.14 (2023/2024): The latest major cycle, featuring cloud-connected collaboration apps and AI-driven design aids. PADS Release Timeline Highlights Notable Versions Key Milestones DOS Era First released in 1985. Innoveda PADS PowerPCB Focused on Windows migration. Classic Mentor PADS 2005, 2007, 9.x Integrated DxDesigner and HyperLynx. VX Era PADS VX.0 to VX.2.14 Transition to Xpedition-based "Professional" tier.

The Evolution of PADS: A Comprehensive Version History For nearly four decades, PADS (Personal Automated Design System) has been a mainstay in the PCB design world. From its humble beginnings as a DOS-based tool to its current status as a cloud-connected powerhouse under Siemens, the software has undergone significant transformations. This post explores the major milestones in the PADS journey. The Early Years (1985–2000) PADS was founded by Gene Marsh and first released in

for the DOS operating system. At just $495 per seat, it democratized PCB design for individual engineers. Late 1980s – 1990s

: The software gained traction among small-to-medium teams as CAD transitioned from hand-drawn stencils to computer-aided layout. Acquisitions & Shifts : In 2000, Kyoden sold PADS to

, a period some long-time users remember for its developmental challenges. The Mentor Graphics Era (2001–2016) Mentor Graphics

acquired Innoveda, bringing PADS into one of the industry's broadest EDA portfolios. PADS 2005 & 2007

: These releases focused on improving board-level simulation and introduced tools like DxDesigner and HyperLynx Analog integration. PADS 9.0 (June 2009)

: A landmark "next-generation" release that introduced significantly enhanced scalability and integration with Mentor’s high-end technologies for analysis and manufacturing. PADS 9.4 (March 2012)

: This version added unique features like DFM (Design for Manufacturing) analysis and ODB++ support. The VX Revolution & Siemens Integration (2014–Present) The launch of

in 2014 marked a major architecture shift, transitioning the software to a more modern platform. Following Siemens' $4.5 billion acquisition of Mentor Graphics in 2017, the software was rebranded as part of Siemens EDA SIEMENS INDUSTRY SOFTWARE INC - Dassault Systèmes mentor graphics pads version history

PADS (Printed Automated Design System) has evolved from a simple DOS-based tool into a sophisticated suite of electronic design automation (EDA) software. Now part of Siemens EDA (formerly Mentor Graphics), its version history reflects the shift from manual board layout to high-speed, multi-layer, and AI-driven design. The Early Era: 1985–1997

Originally created by Gene Marsh, PADS launched in 1985 as a DOS-based software priced at $495 per seat.

PADS-PCB (1985–1990s): Early versions focused on basic 2D layout for double-sided or 4-layer boards.

Transition to Windows: As operating systems evolved, PADS moved away from its DOS roots to support the graphical user interfaces of Windows, becoming a staple for small design bureaus. Acquisition and the Innoveda Years: 1997–2001

This period was marked by rapid corporate shifts and significant technology acquisitions.

1997–1998: PADS acquired HyperLynx for signal integrity and ACT for simulation.

2000: The company was sold to Innoveda, a joint venture between Kyoden and Viewlogic.

PADS 5.0 (1998): This version consolidated many of the newly acquired tools into a more cohesive layout and routing environment. The Mentor Graphics Era: 2001–2017

Mentor Graphics acquired Innoveda in 2001, bringing PADS into one of the "big three" EDA portfolios.

Mentor Graphics PADS Version History: A Comprehensive Overview

Mentor Graphics PADS is a popular printed circuit board (PCB) design software used by engineers and designers to create and manufacture PCBs. The software has a rich history dating back to the 1980s, with numerous versions released over the years. In this post, we'll take a journey through the major milestones in the version history of Mentor Graphics PADS.

Early Years (1980s)

The first version of PADS, version 1.0, was released in 1985 by PADS, a company founded by John Davis and others. At that time, the software was a simple, text-based PCB design tool.

Acquisition by Mentor Graphics (1997)

In 1997, Mentor Graphics acquired PADS, and the software became a part of the Mentor Graphics portfolio. This marked a significant turning point for PADS, as it gained access to Mentor Graphics' resources and expertise.

Major Releases (1998-2005)

The following are some of the notable releases of PADS during this period:

• PADS 5.0 (1998): This version introduced a new graphical user interface (GUI) and support for Windows NT.
• PADS 6.0 (2001): This release added support for 64-bit processors and improved performance.
• PADS 7.0 (2003): This version introduced a new netlist-based design flow and improved collaboration capabilities.

Xtreme and PADS Plus (2005-2010)

In 2005, Mentor Graphics released PADS Xtreme, a major upgrade that introduced a new architecture and user interface. PADS Xtreme was followed by PADS Plus, which added advanced features such as:

• PADS Plus 2007: Introduced support for 3D visualization and collaboration.
• PADS Plus 2009: Added support for advanced PCB design and manufacturing.

PADS VX (2011-2015)

The PADS VX series was a major milestone in the evolution of PADS. The following are some of the notable releases:

• PADS VX (2011): Introduced a new, intuitive user interface and improved performance.
• PADS VX-2.0 (2012): Added support for advanced design and manufacturing, including 3D modeling.
• PADS VX-3.0 (2014): Introduced support for IoT and wearable design.

PADS Professional (2016-Present)

In 2016, Mentor Graphics released PADS Professional, a comprehensive PCB design solution that combined the best features of PADS and Mentor Graphics' other design tools. PADS (Personal Automated Design System) has evolved over

• PADS Professional 2016: Introduced a new, modern user interface and improved collaboration capabilities.
• PADS Professional 2019: Added support for advanced design and manufacturing, including AI-powered design optimization.

Conclusion

The version history of Mentor Graphics PADS is a testament to the software's evolution and growth over the years. From its humble beginnings as a simple text-based tool to its current status as a comprehensive PCB design solution, PADS has remained a popular choice among engineers and designers. Today, PADS Professional continues to be a leading PCB design software, used by companies around the world to create innovative products.

References

• Mentor Graphics website: www.mentor.com
• PADS website: www.pads.com

The version history of Mentor Graphics PADS (now part of Siemens EDA) reflects its evolution from a standalone PCB tool to a multi-tiered design ecosystem.

The software is currently split into two main "flows": PADS Standard/Plus (the "classic" logic/layout environment) and PADS Professional (based on high-end Xpedition technology). 🕒 Notable Version Milestones 1985: First release on DOS for $495.

PADS 2005 / 2007: The era of the "PowerPCB" transition to the modern name.

PADS 9.x (2009–2014): Widely considered the "golden age" for stability; version 9.5 remains in use by many legacy teams.

PADS VX (2014–Present): Introduced the VX (VersalX) platform to align with Xpedition’s database structure.

PADS VX.2.17 (October 2025): The most recent major version as of current support documentation. 🛠️ Version Release Highlights (Recent History) PADS Standard vs. PADS Professional - EEVblog

The history of PADS (Personal Automated Design System) is a decades-long journey that mirrors the evolution of the entire electronic design automation (EDA) industry. From its origins as a budget-friendly DOS application to its current status as a sophisticated suite under Siemens, PADS has remained a staple for independent engineers and small-to-medium design teams. 1. The Early Era: PADS-PCB and the DOS Roots (1985–1990s)

PADS was originally created by Gene Marsh and his son in the mid-1980s.

1985 Release: The first version, PADS-PCB, debuted for DOS. At just $495 per seat, it democratized PCB design, which was previously locked behind expensive, proprietary Unix workstations.

Market Growth: Headquartered in Marlborough, MA, the company grew rapidly, becoming a primary competitor to early leaders like PCAD and Calay Systems.

2. Corporate Transitions: Innoveda and Acquisition (1990s–2002)

The late 90s saw PADS bolster its technical capabilities through strategic acquisitions before undergoing significant corporate changes.

Expansion (1997–1998): PADS acquired HyperLynx in 1997, integrating what would become the industry-standard tool for signal integrity. In 1998, they added ACT (Advanced CAM Technologies) to improve manufacturing output.

Ownership Shifts: In 2000, the company was sold to Innoveda, a joint venture involving ViewLogic. This period is often remembered by longtime users for a perceived stall in product innovation. 3. The Mentor Graphics Era (2002–2017)

In 2002, Mentor Graphics acquired Innoveda for $160 million, officially bringing PADS into its portfolio.

PADS 2005 & 2007: Mentor introduced "Flow" bundles, integrating Logic, Layout, and Router into a cohesive Windows-based environment.

The "9.x" Series: Versions like PADS 9.3 and 9.5 were major milestones, widely used for years. These versions solidified the classic workflow of using PADS Logic for schematics and PADS Layout for the board.

PADS Professional (2015): To compete with high-end tools like Altium, Mentor launched PADS Professional. This was a radical shift, as it was built on the high-end Xpedition technology rather than the legacy PADS code. 4. Siemens and the VX Series (2017–Present)

Following Siemens' $4.5 billion acquisition of Mentor Graphics in 2017, the software was rebranded under Siemens EDA. History of PADS - PCB Libraries Forum

PADS-PowerPCB 1.0 (1996)

This was the Big Bang moment. The old DOS interface was scrapped. PADS moved to a native Windows GUI (Windows 95/NT). PADS 5

• New Features: Mouse-driven placement, real-time zoom, and a unified graphical environment.
• The Split: For the first time, the suite split into PowerLogic (schematic capture) and PowerPCB (layout).

4. The Standardization Era (2006–2013)

Around 2007, Mentor Graphics rebranded the suite, dropping the "Power" prefix to simplify the product identity and align it with other Mentor flows. The tool became known simply as PADS Logic, PADS Layout, and PADS Router.

PADS VX.2 (2017)

• Last release under Mentor Graphics (Siemens acquisition Oct 2017).
• Rigid-flex support (basic – define bend areas, stackup per region).
• Hole and pad editing more advanced.
• Siemens PLM integration (Teamcenter) – early version.

Mentor Graphics PADS — Version History (selected highlights)

Below is a concise, chronological summary of notable PADS releases, major features, and platform changes from Mentor Graphics (now part of Siemens EDA). This is a high-level overview — for detailed patch notes or build numbers, consult official release documentation.

• PADS 2000s era

  • Early PADS Professional and Standard releases focusing on schematic capture, PCB layout, and through-hole/SMT routing.
  • Incremental improvements in design rule checking (DRC) and autorouting.

• PADS 6.x – 7.x (mid–late 2000s)

  • Enhanced autorouter performance and interactive routing improvements.
  • Better library management and expanded simulation/export capabilities.

• PADS 8.x – 9.x (late 2000s – early 2010s)

  • Introduction of more advanced constraint-driven design.
  • Improved integration with simulation and signal integrity tools.
  • 9.x introduced modernized GUI elements and 64-bit support beginnings.

• PADS VX (around 2012)

  • Rebranded line emphasizing unified “VX” toolset (PADS VX and PADS VX.2).
  • Stronger focus on system-centric PCB design workflows and enterprise integration.

• PADS 9.5 / VX.2 updates (2013–2016)

  • Continued improvements to high-speed design features, differential pair tuning, and SI/PI analysis links.
  • Enhanced BOM management and manufacturing data outputs.

• PADS Professional / PADS Standard (mid–2010s)

  • Product packaging shifted: clearer distinction between Professional (advanced) and Standard (core) feature sets.
  • Native support for larger board designs and multi-board projects.

• Late 2010s — Mentor becomes Siemens EDA

  • Ongoing integration into Siemens PLM/EDA ecosystem; increased emphasis on cross-domain data exchange.
  • Improved ECAD-MCAD collaboration and updated file-format compatibility.

• PADS Professional 2020s (2019–2022)

  • Updated UI, better 64-bit stability, performance boosts.
  • Enhanced constraints, verification, and library tooling; added scripting and automation improvements.

• Recent years (2023–2026)

  • Continued refinement under Siemens EDA: tighter integration with Xpedition workflows, cloud-enabled collaboration features, updated manufacturing outputs (IPC-2581, ODB++ enhancements), and advanced rule management for high-speed and RF designs.
  • Ongoing security, stability, and Windows OS compatibility updates.

If you want a complete, version-by-version changelog or links to specific release notes (build numbers, exact dates, bug fixes), say which product variant and time range you need (e.g., "PADS Professional 9.5–2022"), and I will fetch more precise details.

• PADS 1.0 (1980s): The first version of PADS was released, which was a simple PCB design tool.
• PADS 2.0 ( late 1980s): Introduced support for multi-layer boards and improved design automation features.
• PADS 3.0 (early 1990s): Added support for surface mount technology (SMT) and ball grid array (BGA) packages.
• PADS 4.0 (mid-1990s): Introduced a new user interface and improved performance.
• PADS 5.0 (late 1990s): Added support for high-speed design, including signal integrity analysis.
• PADS 6.0 (2000s): Introduced a new design automation platform, including improved routing and placement tools.
• PADS 7.0 (2002): Added support for System-in-Package (SiP) design.
• PADS 8.0 (2004): Introduced a new user interface, improved collaboration features, and enhanced design for manufacturability (DFM) checks.
• PADS 9.0 (2006): Added support for 64-bit operating systems and improved performance.
• PADS 10.0 (2008): Introduced a new design automation platform, including improved routing, placement, and signal integrity analysis.
• PADS 11.0 (2010): Added support for 3D design and analysis.
• PADS 12.0 (2012): Introduced improved collaboration features, including support for multiple design teams.
• PADS 13.0 (2014): Added support for high-speed design, including improved signal integrity analysis and timing analysis.
• PADS 14.0 (2016): Introduced improved design for manufacturability (DFM) checks and support for Industry 4.0.
• PADS 15.0 (2018): Added support for artificial intelligence (AI) and machine learning (ML) in design automation.
• PADS 16.0 (2020): Introduced improved collaboration features, including support for cloud-based design.

In 2017, Mentor Graphics was acquired by Siemens, and PADS has since become part of the Siemens EDA (Electronic Design Automation) portfolio.

Today, PADS continues to evolve with new features and capabilities, including:

• PADS Professional: A comprehensive PCB design and layout solution.
• PADS Plus: A high-speed design solution that includes signal integrity analysis and timing analysis.
• PADS HyperLynx: A high-speed design solution that includes 3D electromagnetic analysis.

The current version of PADS is PADS Professional 2022, which includes various enhancements and new features, such as improved collaboration, enhanced design automation, and support for latest industry standards.

The history of PADS PCB design software spans over four decades, evolving from a DOS-based tool into a sophisticated suite now under the Siemens EDA PCB Libraries Origins and Early Years (1980s–1990s)

: PADS was first released by Gene Marsh and his son as a DOS-based operating system tool, originally priced at approximately $495 per seat.

: The software's headquarters were established in Marlborough, MA, eventually growing to a staff of 120 with widespread distribution in the USA. Acquisitions

: PADS was briefly owned by the Japanese manufacturer Kyoden before being acquired by in early 2000. PCB Libraries Mentor Graphics Era (2002–2016)

Mentor Graphics acquired Innoveda in 2002, integrating PADS into its broad Electronic Design Automation (EDA) portfolio. : Introduced GUI standardization, the Project Explorer

for Logic and Layout, and integrated OrCAD schematic/library import. : Added features for Design Variants and integrated HyperLynx Analog simulation as a DxDesigner add-in. PADS 9.x Series 9.4 (2012) : Added support for new 2D line styles and enhanced library support 9.5 (2012)

: Modernized the installation process and updated database/ASCII formats for Layout and Router The VX Release and Siemens Acquisition (2014–Present) What’s new in PADS VX.2.12 - Siemens

Overall Pros & Cons of PADS Version History

| Pros | Cons | |---------------------------------------------------|---------------------------------------------------| | Long file backward compatibility (PADS 9.x files open in VX/Pro) | Steep price increase after Siemens acquisition | | Scalable – from simple 2-layer to complex 20+ layer boards | Feature fragmentation across Standard/Plus/Pro | | Strong router (PADS Router / Allegro-like in Pro) | Some versions (VX.0–VX.1) had stability issues | | Excellent simulation integration (HyperLynx) | Documentation can be scattered across versions | | Still used by many contract manufacturers (CMs) | No native macOS/Linux version (Windows only) |

Version 2.0 – 3.0 (1997–1999)

• 1998 (v3.0): Introduced "Interactive Rule Checking." Before this, you ran DRC as a batch process after routing. Now, the router screamed at you in real-time if you violated a clearance rule.
• Libraries: Moved from flat ASCII libraries to a centralized database (.pt4 files).

How to Identify Your Version

If you have a legacy design file, here is how to date it:

• File extension .pcb: Pre-2005 PADS. It likely came from PowerPCB 4.0 or earlier.
• File extension .pcb (but opens in v9.5): 2005–2012 era.
• File extension .pdc or .layout: VX.0 and later.
• Folder structure includes \Library\ with .ldb files: Siemens/Professional version.