Cadence Systems Analysis Sigrity 2021.1

Celsius Thermal Solver Enhancements

- Assigning Different Initial Conditions for Different Objects
In Celsius Solid Objects Simulation for 3D Structures and Celsius Fluid Flow Simulation modules, instead of specifying a uniform initial (ambient) temperature for the entire project, you can now specify different initial temperature values for different objects in the design. During analysis, such objects are initialized at the specified temperature value instead of the ambient temperature used for the rest of the project.
- Nonlinear Material Properties Added in the Material Library
You can now define materials with nonlinear properties, such as, viscoplasticity, fatigue, and failure in Celsius. This helps you study the structural response of your design when using materials with a nonlinear stress-strain relationship.
- Defining Structural Load Boundary Conditions
You can now perform structural load analysis of your design by specifying nodal and surface loads as boundary conditions in Celsius Solid Objects Simulation for 3D Structures module. This can help you study the effect of different loads on the deformation of materials and its impact on the simulation.
- Time-dependent Ambient Temperature Support
For transient analysis in Celsius Fluid Flow Simulation module, instead of defining a constant ambient temperature for the entire simulation, you can now define timedependent ambient temperature. This option helps model the scenarios where the ambient temperature can vary with time.
- Time-dependent Flow Rate and Flow Temperature Support
In the Celsius Fluid Flow Simulation module, you can now define time-dependent flow rate and flow temperature for an opening on the chassis wall. This helps you model more realistic scenarios, where the opening’s inlet flow rate and/or temperature can vary with time.
- 2D and 3D Probes Support in Celsius Fluid Flow Simulation
You can now add 2D and 3D probes in the Celsius Fluid Flow Simulation module to collect the 2D and 3D probe data. 3D probes collect the maximum, minimum, and average temperature data, while 2D probes collect the mean temperature in, mean temperature out, and net flow data. After the simulation run, you can use the probing data to analyze the results.
- Post-processing Enhancements
You now have the ability to post-process your simulation results within the Celsius Thermal Solver interface. Celsius lets you plot your simulation results in a new ParaView instance within the Layout pane. This capability is available through the Field-Plot option in both Celsius Solid Objects Simulation for 3D Structures and Celsius Fluid Flow Simulation modules.

Clarity 3D Solver Enhancements

- Adaptive Mesh Refinement Stage Improved
The mesh refinement priority and the mesh quality have been improved in the adaptive mesh refinement stage that results in a more stable convergence trend and a more reliable final mesh.
- Far-field Processing Enhanced
The performance of far-field processing has been improved significantly. Now, you can load and view the results for large designs much faster.
- New Geometry Healing Options Added
Clarity 3D Workbench now provides a couple of new options that enable you to remove or repair the bad faces of a geometry that are introduced when importing a design.
- Support for New Boundary Conditions Added
Two new boundary conditions, impedance boundary and RLC boundary, have been added in Clarity 3D Workbench. The impedance boundary condition is used to model the resistive surfaces while the RLC boundary condition is used to model lumped resistors, inductors, and capacitors.
- Presimulation Validation Enhanced
Presimulation validation has been enhanced in both Clarity 3D Workbench and Clarity 3D Layout. Both the tools now perform extensive checks during presimulation validation so that most of the errors can be detected and resolved prior to running the simulation.

New Clarity 3D Transient Solver Introduced
A new Finite Difference Time Domain (FDTD) solver, Clarity 3D Transient Solver, has been introduced that enables you to obtain results for a wide frequency band with a single simulation run as compared to other frequency domain solvers that require multiple runs for several frequencies.

New Unified GUI Platform Introduced
A new unified GUI platform is now available for Clarity 3D Workbench, Celsius Thermal Solver, and Clarity 3D Transient Solver tools. You can now access these tools from a single GUI, and also easily switch from one tool to another without the need to open the tool separately.

XtractIM Enhancements

- Support for Local Silicon Interconnect (LSI) Extraction
XtractIM now supports the extraction of Local Silicon Interconnect (LSI) in packages with LSI and short-via-array.
- Multi-profile Ball/Bump Support for Single Component
In XtractIM, while creating solder ball/bumps you can now add multiple profiles based on the padstack size. This allows you to generate new sub-circuits from selected pin nodes.

SystemSI Migrated to a New User Interface

SystemSI has been migrated to a new user interface. To continue using the extensive features of SystemSI:
- OrCAD/Allegro 17.4 (SPB174) HotFix
- Sigrity and Systems Analysis 2021.1
On Windows, open the new SystemSI from the Cadence System Analysis folder in the Start menu.

New SPEEDEM Tool Introduced
SPEED2000 is now known as SPEEDEM. SPEEDEM comes with complete support for rigidflex designs including cross-hatch planes and multi-zone stackups, enhanced time domain engine performance, and ERC modularization.

Support for Distributed Computing Added
Like the Celsius Thermal Solver and Clarity 3D Solver, now OptimizePI, PowerSI, PowerDC, and XtractIM also support distributed computing. Using this functionality, you can perform the simulation on a single (local) computer or distribute the simulation run across multiple computers. However, this functionality is available only if you select the Tier II license (OptimizePI II, PowerSI II, PowerDC II, or XtractIM II) from the Choose Licenses Suite dialog box when launching Layout Workbench.

Sigrity Suite Renamed to Layout Workbench
Sigrity Suite is now known as Layout Workbench. In this release, the following tools have been added to Layout Workbench:
- Celsius Layout
- OptimiziPI
- PowerDC

Gds2Spd User Interface Improved
The Gds2Spd translator interface has been revamped to make the design more intuitive for ensuring better flow and navigation. Text labels have also been revisited to make them more meaningful and simplify the options' usage.

Hardware and Software Requirements

Operating System
- Windows 10 (64-bit)
- Windows 2012 Server (All service packs)
- Windows 2016 Server (All service packs)
- Windows 2019 Server

Minimum Hardware
- x86_64 Compatible (includes P4 EMT and AMD Opteron)
- 8 GB RAM
- Virtual memory at least twice physical memory
- 50 GB free disk space
- 1,024 x 768 display resolution with true color (16bit color)
- Broadband Internet connection for some service
- Ethernet card (for network communications and security hostID)
- Three-button Microsoft-compatible mouse

Recommended Hardware
- Intel Core i7 4.30 GHz or AMD Ryzen 7 4.30 GHz with at least 4 cores
- 64 GB RAM or higher
- 500 GB free disk space
- SSD is recommended for primary operating system (OS) and simulation working directory
- Dedicated graphics card with 1 GB video memory or higher
- Large monitor (or two) with Full HD resolution or higher
- Broadband Internet connection for some services
- Three button mouse with scroll wheel
- Full size keyboard