Rising Design Complexity Across Chip–Package–Board Levels
As integration scales, managing electrical, thermal, and physical interactions across multiple design layers becomes increasingly difficult.
Powering Electronics & Semiconductor Innovation
Simulation-driven insights for signal integrity, reliability, and high-performance system integration.
Overview
Accelerate Innovation Across the Electronics & Semiconductor Value Chain
The electronics and semiconductor industries are at the heart of digital transformation — powering everything from smart devices and data centers to electric vehicles and aerospace systems. With increasing product complexity, tighter power and thermal constraints, and the push for miniaturization, engineers face mounting challenges in design, validation, and reliability.
CADFEM, with Ansys solutions, empowers companies to digitally design and validate their products across the chip–package–board–system hierarchy. Whether you're optimizing signal integrity in high-speed PCBs, simulating thermal reliability in 3D ICs, or validating EMI/EMC performance, our multiphysics simulation workflows help you innovate faster, reduce failures, and comply with global standards.
Pillars of Electronics & Semiconductor Simulation
Industry Challenges
Electromagnetic Interference and Signal Degradation at High Frequencies
High-speed designs face EMI issues and signal integrity challenges that compromise performance and compliance.
Thermal Runaway, Solder Fatigue, and Early-Life Failures
Electronics are increasingly vulnerable to thermal stress and mechanical fatigue, impacting reliability and longevity.
Pressure to Shorten Tape-Out and Validation Timelines
Market demands push for faster design-to-silicon cycles, leaving less room for physical validation and iteration.
Growing Compliance Needs: JEDEC, IPC, CISPR, ISO, etc.
Designs must now adhere to multiple overlapping international standards, increasing the complexity of verification.
Demand for Compact, Low-Power, and Reliable Designs
Space-constrained applications like consumer electronics and EVs require power-efficient, highly reliable systems.
Solution with Simulation
Product-Driven Simulation Solutions
End-to-End Simulation
Solve from transistor to system with multiphysics accuracy.
Early Failure Detection
Avoid re-spins by detecting risks early.
Thermal-Aware Design
Reduce overheating, ensure packaging integrity.
Faster Signoff
Accelerate signoff timelines with validated solvers.
Optimized Performance
Improve PI/SI, thermal, and EMI performance.
Advanced Packaging Simulation
Validate chiplet and 3D-IC integration.
Power Integrity & Signal Integrity
Ensuring Clean Power Delivery and Reliable High-Speed Signals
As digital systems scale toward multi-GHz signaling, multi-gigabit SerDes, DDR5/DDR6, and PCIe Gen5/6, both power integrity (PI) and signal integrity (SI) become critical bottlenecks. Noise on the power delivery network (PDN) directly couples into high-speed signals, while discontinuities in signal paths create jitter, eye closure, and data corruption. CADFEM, with Ansys solutions, provides end-to-end PI/SI workflows spanning chip-package-board-system, enabling early detection of bottlenecks, optimized decoupling, and compliance-ready channel validation.
Focus Points
- Power Delivery Network (PDN) Design
- High-Speed Channel Validation
- IBIS-AMI & DDR Compliance
- Co-Simulation Workflows
- Decoupling Capacitor Optimization
- Advanced Packaging Co-Extraction
- Statistical vs. Time-Domain Analysis
Challenges
Simultaneous Switching Noise (SSN) and Voltage Droops
Rapid current transients in SoCs create PDN instability, reducing timing margins.
Multi-GHz Jitter and Eye Closure
As signaling speeds push beyond 32–112 Gbps, small discontinuities cause severe timing violations.
Return-Path & Ground Bounce Issues
Incomplete return paths at vias/connectors lead to EMI leakage, SI degradation, and PDN resonance.
Optimal Decap Strategy in Complex PDNs
Balancing capacitor size, placement, and mounting inductance becomes increasingly complex in dense layouts.
Interconnect Parasitics in Advanced Packaging
TSVs, micro-bumps, and interposers introduce coupling paths not seen in traditional PCBs.
System-Level PI-SI Interaction
Noise coupling between PDN and signal channels must be validated together, not in isolation.
Compliance Across Multiple Standards
Channels must simultaneously meet compliance for multiple protocols (e.g., DDR + PCIe on the same board).
Advanced Workflows
DC IR Drop & Power Map
Early-stage PDN voltage-drop maps across chip-package-board.
AC Impedance Profiling
Target impedance validation across the frequency spectrum.
IBIS-AMI Channel Simulation
Statistical and time-domain compliance checks for high-speed serial links.
DDR Wizard-Based Workflows
Automated setup for DDR3/4/5 and LPDDR compliance tests (timing, reflections, crosstalk).
Chip-Package-Board Co-Design
Unified modeling of die, interposer, package, and PCB for 2.5D/3D IC systems.
Signal-Power Co-Simulation
PDN noise injection into signal simulations for real-world correlation.
Parametric / What-If Studies
Sweeping via geometries, trace widths, stackups, and capacitor types to optimize design.
Applications
Semiconductors
Chip-level PI/EMIR with system-level package/PCB correlation.
High-Speed Computing
PCIe Gen6, 112G SerDes, DDR5/DDR6 memory interfaces.
Mobile & Consumer
LPDDR5/6, USB4, HDMI, high-density SoC packaging.
Automotive & EV
High-speed links in ADAS, infotainment, and ECU platforms.
Aerospace & Defense
Robust PDN and SI design for mission-critical electronics.
Advanced EMI/EMC & Shielding
Virtual Validation for EMC, Shielding & Harsh EM Environments
Electronics today operate in environments saturated with electromagnetic fields — from 5G base stations and IoT hubs to aircraft, defense platforms, and mission-critical data centers. Ensuring compliance, shielding, and resilience against EMI/EMC threats is a major design and certification challenge, and physical EMC testing is expensive and iterative. CADFEM, powered by Ansys solutions, enables virtual compliance — covering Radiated Emissions (RE), Conducted Emissions (CE), ESD, immunity, shielding effectiveness, and reverberation chambers — accelerating product readiness while reducing costly lab cycles.
Focus Points
- Reverberation Chamber Simulation
- Shielding Effectiveness (SE) Analysis
- Radiated Emissions (RE)
- Conducted Emissions (CE)
- Radiated/Conducted Immunity
- High-Intensity Radiated Fields (HIRF)
- ESD & Lightning Protection
- Large-System EMI/EMC Simulation
Challenges
Regulatory Compliance
Meeting CISPR 11/22/32, FCC Part 15, MIL-STD-461, DO-160, ISO 11452, and IEC 61000 EMC standards.
Cost of Physical Testing
EMC chambers, RE/CE test benches, and shielding tests are expensive with multiple re-spins common.
Complex Cable & Harness Networks
Long cables act as antennas, amplifying conducted/radiated emissions and susceptibility.
Shielding vs. Ventilation Trade-offs
Balancing airflow for cooling with EMI shielding in dense electronic enclosures.
Harsh EM Environments
Defense, aerospace, and critical infrastructure must withstand HIRF, EMP, and lightning.
Applications
Aerospace & Defense
HIRF, lightning strike, RE/CE compliance, shielding of avionics and radomes.
Automotive
EMC compliance of EV electronics, busbars, inverters, and harnesses (RE, CE, immunity).
Data Centers & Telecom
Rack-level shielding, reverberation chamber-based compliance, RE control.
Industrial & Energy
Shielding of power cabinets, substations, renewable inverters under CE/RE stress.
Medical Devices
EMC validation of implants, diagnostic instruments, and life-critical equipment.
Thermal & Mechanical Reliability
Ensuring Thermal and Mechanical Robustness
From hot-spots to solder fatigue and drop events, CADFEM's multiphysics reliability workflows simulate thermal, structural, and shock/vibration stresses to predict product life before hardware build.
Focus Points
- Steady-state and transient thermal mapping
- Solder-joint fatigue and warpage prediction
- Shock, vibration, and drop-test simulation
- Packaging-induced mechanical stress
- Coupled thermal-structural analysis
Challenges
Localized Hotspots in High-Density Packages
Power-dense chips develop thermal hotspots that reduce performance and lifetime.
Solder Fatigue Under Thermal Cycling
Cyclic thermal loads cause solder joint degradation, especially in automotive and aerospace applications.
Warpage of Interposers and Substrates
Layered packages are susceptible to warping due to material mismatches and thermal stress.
Board Bending During Shock and Vibration
Mechanical deformations during transport or usage can lead to cracks and electrical failure.
Integrating Electrical, Thermal, and Mechanical Loads
Multiphysics interactions must be analyzed together to ensure real-world robustness.
Advanced Packaging & 3D IC
Enabling Next-Generation 2.5D/3D IC Integration
The semiconductor industry is rapidly transitioning to heterogeneous integration and advanced packaging to keep pace with Moore's Law alternatives. Chiplets, interposers, and 3D stacked dies offer higher bandwidth, lower latency, and improved power efficiency — but they also introduce complex multiphysics challenges spanning electrical, thermal, and mechanical domains. CADFEM, with Ansys multiphysics platforms, provides foundry-certified sign-off workflows for advanced packaging and 3D ICs, ensuring reliability from chiplet-to-system.
Focus Points
- Interposer & TSV Modeling
- Chiplet-to-Chiplet Power/Signal Co-Analysis
- Thermal-Aware 3D Design
- Structural & Warpage Verification
- Macro-to-Micro System Workflows
- Foundry-Ready Design Kits
Challenges
Inter-Die Coupling in Dense 3D Stacks
Electromagnetic and thermal coupling between closely stacked dies increases leakage and crosstalk risks.
Thermal Management of Stacked Die
Limited cooling pathways lead to hotspots, reliability degradation, and accelerated aging.
Electromagnetic Crosstalk in Tight Interconnects
Dense TSV and RDL networks increase SI/PI challenges at 112G SerDes, DDR5/6, and HBM speeds.
Mechanical Stress in Vertical Packaging
CTE (Coefficient of Thermal Expansion) mismatches induce stress and delamination in 2.5D/3D stacks.
Cross-Domain Verification Across EDA & MCAD
Packaging success depends on seamless integration of electrical, thermal, and structural solvers.
Yield and Manufacturability
Complex heterogeneous integration poses yield, alignment, and assembly challenges.
Advanced Workflows
Chip-Package-Board Co-Simulation
Integrated flows bridging die power models (RedHawk-SC), package parasitics (Q3D), and board SI/PI (SIwave).
Electrothermal Co-Design
Chip-to-system temperature-aware power integrity analysis to prevent thermal runaway.
Multiphysics Warpage Simulation
Predicting deformation of interposers and substrates during reflow, assembly, and operation.
Signal Integrity Across Chiplets
Channel compliance analysis for HBM, PCIe Gen6, CXL, and custom chiplet links.
Reliability & Lifetime Prediction
Solder fatigue, TSV reliability, and thermal cycling stress validation.
Design for Test & Compliance
Incorporating ESD, IR drop, and EMIR validation into early package sign-off.
Applications
High-Performance Computing (HPC)
HBM-enabled GPUs, CPUs, and AI accelerators with stacked 3D memory.
Mobile & Consumer SoCs
Chiplet-based AP/Modem/Memory integration for smartphones and AR/VR devices.
Automotive Electronics
Reliable 2.5D/3D ICs for ADAS, infotainment, and EV control units.
Networking & Telecom
112G SerDes, optical/electrical co-packaging, and chiplet-based CXL/PCIe architectures.
Defense & Aerospace
Radiation-hardened 2.5D/3D ICs with strict thermal and reliability requirements.
Antenna & Wireless System Integration
Designing, Validating, and Optimizing Antennas for Modern Applications
With the growing adoption of 5G, Wi-Fi 7, IoT, satellite communications, and automotive radar, antenna design has become central to electronics innovation. Antennas must not only deliver high performance in isolation but also coexist with complex PCB layouts, enclosures, human bodies, and surrounding systems. CADFEM, powered by Ansys solvers, enables engineers to virtually prototype, optimize, and integrate antennas in real-world environments — shortening design cycles and ensuring compliance.
Focus Points
- Wideband & multiband antenna design (5G NR, Wi-Fi, IoT)
- Array & beamforming for phased-array & MIMO
- Antenna-in-package (AiP) & antenna-on-chip (AoC)
- Co-site & coexistence analysis (Bluetooth, GPS, NFC)
- Antenna placement in complex environments
- Specific Absorption Rate (SAR) & regulatory compliance
Challenges
5G and mmWave Antennas in Compact Devices
Designing high-frequency antennas within limited space while meeting gain and efficiency targets.
Array Calibration and Mutual Coupling
Phased-array and MIMO systems require accurate modeling of element interactions to maintain beam patterns.
Antenna Placement Near Human Body or Vehicle Structure
Wearable and automotive antennas face detuning, absorption, and compliance risks.
Electromagnetic Interference with Co-Located Radios
Smartphones, EVs, and IoT hubs integrate multiple radios, creating coexistence and EMI challenges.
Validation Across Realistic Operating Environments
Antennas must be tested virtually in enclosures, buildings, vehicles, or outdoor ranges to ensure reliable performance.
Applications
Telecom & 5G
Massive MIMO base-stations, mmWave smartphone antennas.
Automotive & Aerospace
Radar, GNSS, V2X, SATCOM, in-flight Wi-Fi.
Consumer Electronics
Wearables, AR/VR devices, IoT hubs, smartphones.
Defense & Space
High-gain phased arrays, satellite payload antennas, radomes.
Low-Frequency Electromagnetics
Designing Reliable Motors, Actuators, Solenoids, and Power Systems
Electromechanical components form the backbone of energy conversion and motion systems across automotive, industrial, medical, and aerospace domains. From high-efficiency motors and actuators to robust busbars and inductive charging systems, engineers must balance electromagnetic performance, thermal reliability, and mechanical integrity. CADFEM, with Ansys solutions, provides a unified multiphysics environment to design, optimize, and validate these low-frequency electromagnetic devices.
Focus Points
- Electric Machines (induction, synchronous, BLDC, PMSM, SRM)
- Solenoids & Actuators
- Busbars & Conductors (Joule heating, skin effect)
- Transformers & Inductors
- Wireless Power Transfer (WPT)
- Coupled Electrical–Thermal–Structural Reliability
Challenges
Efficiency and Loss Minimization
Reducing copper and iron losses while maximizing torque density and system efficiency.
Thermal Runaway in High-Current Devices
Excessive joule heating in busbars, coils, and windings reduces lifespan and reliability.
Magnetic Saturation and Nonlinear Materials
Accurate modeling of nonlinear BH-curves is critical for transformers and actuators.
Short-Circuit and Fault Tolerance
Ensuring structural and thermal robustness of busbars and switchgear during transient overloads.
Coupling With Control Systems
Validating motor performance under real drive cycles and controller algorithms.
Noise, Vibration, and Harshness (NVH)
Electromagnetic forces induce vibrations in motors and actuators, requiring coupled EM–structural simulations.
Applications
Automotive & EV
Traction motors, inverters, busbars, battery contactors, EV charging coils.
Industrial Automation
Actuators, robotics motors, solenoids for precision machinery.
Energy & Power
Transformers, reactors, and high-current busbars in substations.
Aerospace & Defense
Electromagnetic actuators, solenoids, cryogenic motors, and magnetic bearings.
Data Center Simulation
Optimizing Power, Cooling, and Reliability for Next-Generation Data Centers
Data centers are the backbone of the digital economy, supporting AI, cloud, IoT, and high-performance computing. With rising power densities, accelerated deployment timelines, and stringent energy-efficiency goals, operators face significant challenges in ensuring performance, uptime, and sustainability. CADFEM, powered by Ansys multiphysics solutions, provides end-to-end digital simulation workflows to optimize electrical infrastructure, cooling architectures, and EMI shielding for data centers at rack, room, and facility scale.
Focus Points
- Thermal Management & Cooling Optimization
- Power Delivery & Electrical Reliability
- EMI/EMC & Signal Integrity
- Sustainability & Energy Efficiency
Challenges
Rising Power Density in AI Racks
Next-gen AI/ML workloads push racks to 70–100 kW+, demanding advanced cooling strategies.
Thermal Reliability of Liquid & Immersion Cooling
Innovative cooling introduces new reliability risks (leakage, condensation, pump failure).
Electrical Overloads & Power Failures
Peak load conditions stress busbars, UPS systems, and switchgear, risking downtime.
Electromagnetic Interference in High-Speed Systems
Dense PCB and rack integration increases EMI, threatening server compliance and performance.
Sustainability Pressure
Operators face strict energy targets, requiring precise modeling of efficiency metrics.
Applications
Hyperscale & Cloud Providers
AI-ready rack and cooling design, PUE optimization.
Enterprise Data Centers
Reliability analysis of electrical distribution and redundancy.
Telecom Edge Data Centers
Compact footprint cooling, EMI/EMC compliance.
Colocation Facilities
Multi-tenant thermal, electrical, and shielding optimization.
Defense & Mission-Critical
Ruggedized, fault-tolerant, and EMI-hardened data center design.