Improving Electronics Reliability: Mechanical Reliability
Good morning, good afternoon, everyone. Thank you for joining us in today's webinar. We are going to talk about mechanical reliability, which is part of the series on ANSYS solutions to help improve electronics reliability.
Introduction
Electronic systems are found in nearly all industries, including aerospace, automotive, consumer electronics, healthcare, industrial, and many others. Ensuring these systems remain operational and perform their intended functions in various environments is critical to product success. Companies that properly address electronics reliability concerns, especially through simulation, can meet their objectives effectively.
Traditional vs. Simulation Approaches
Traditionally, companies have used a "design, build, test, break, fix" cycle. However, this approach can be inefficient. By using simulations, specifically ANSYS solutions, virtual models and prototypes can be created and tested, providing engineers with a higher degree of confidence that physical tests will be successful.
ANSYS Solutions
ANSYS provides a suite of tools and workflow solutions that address a wide range of electronics reliability concerns:
- Electrical, thermal, mechanical, multi-physics, and reliability physics analyses
- Virtual testing to predict performance in various situations
Webinar Series
We have covered various topics in our webinar series:
- Electrical reliability (June 9th)
- Thermal reliability (Last week)
- Mechanical reliability (Today)
- Comprehensive multi-physics solutions (Next week)
- Reliability physics analysis (July 7th)
Please sign up for these webinars. A link to the website will be provided.
Focus on Mechanical Reliability
Today, we are focusing on mechanical reliability. Physical structures, such as PCBs and other electronic components, are susceptible to failures due to excessive deformation or warpage. This can result from thermal loads, shock, vibration, and drops.
ANSYS Solutions for Mechanical Reliability
- Tumble test simulations
- Drop test simulations
- Moisture simulations
- Heat transfer simulations
- Solder joint reliability
Challenges in Mechanical Reliability Simulation
Challenges include:
- Geometric complexity: Many components and layers on a PCB
- Material complexity: Different materials behave differently under thermal conditions
- Physics complexity: Determining electrical fields, thermal expansion, and structural coupling
Advanced Modeling Techniques
ANSYS offers various modeling techniques to address these challenges:
- Lumped mass modeling for quick simulations
- Trace method for improved accuracy
- Reinforcements for higher accuracy
- Trace modeling for detailed 3D geometry
Detailed Component Modeling
ANSYS can model:
- Wire bonds and solder joints
- Traces, vias, heat sinks, and underfills
Simulation Capabilities
ANSYS provides capabilities for:
- WarpWitch simulations
- Solder reflow WarpWitch simulations
- Shock and vibration simulations
- Drop test simulations
- Moisture effects simulations
- Fatigue and fracture calculations
Conclusion
ANSYS solutions help avoid component and assembly failures by allowing simulations to assess issues such as delamination and component cracking. This reduces costs associated with physical testing.
Upcoming Webinars
Next week, we will discuss comprehensive multi-physics solutions, focusing on how various ANSYS tools work together. Please sign up for this webinar on June 30th.
Contact Information
If you'd like to learn more or get a detailed demo, please contact us:
- Phone: 408-732-4665
- Email: info@ozen.com
- Website: www.ozen.com
Thank you for joining us. I'm going to stop the recording.
Good morning, good afternoon, everyone. Thank you for joining us in today's webinar. We are going to talk about mechanical reliability, which is part of the series on ANSYS solutions to help improve electronics reliability.
Electronic systems are found in nearly all industries, such as aerospace, automotive, consumer electronics products, healthcare, industrial, and many others. Ensuring these systems remain operational and perform their intended functions in a variety of environments is critical to product success.
Companies who properly address electronics reliability concerns, especially through simulation, can meet any of the objectives stated in this slide. Traditionally, companies have used a design, build, test, break, fix it kind of design cycle.
However, such an approach can be expected to present a product with a long-lasting solution from an afar to any input. We offer cutting-edge products by using simulations, specifically ANSYS solutions, which allow virtual models and prototypes to be created and simulated in virtual testing.
This helps provide engineers with a higher degree of confidence that the physical tests they do run will be successful. ANSYS provides a suite of tools and workflow solutions that address a wide range of electronics reliability concerns.
Each aspect, including electrical, thermal, mechanical, multi-physics, and reliability physics analyses, plays a key role in the understanding of how electronic systems operate and perform in a variety of situations. We did the electrical reliability webinar on June 9th.
The recording is available if you are interested. Last week, we did thermal reliability. This week, we are doing mechanical reliability. And next week, we are going to talk about comprehensive multi-physics solutions. The week after next, we are going to talk about reliability physics analysis.
Please sign up for these. I'm going to give you a link to the website. Today, we will focus on mechanical reliability. Physical structures, such as PCBs and other electronic components, are susceptible to failures due to excessive deformation or warpage.
This may be from thermal loads and excessive shock, vibration, or drop. ANSYS has solutions to address these concerns one by one. We can do tumble test simulations, drop test simulations, moisture simulations, heat transfer simulations, and address solder joint reliability.
In this webinar, we will talk about how we can take into account all these details in our models, including traces and coatings on their fields. They all play a role in either enhancing or decreasing the fatigue life.
When it comes to mechanical reliability, the simulation challenges include geometric complexity, material complexity, and physics complexity. ANSYS tools have the best-in-class PCB modeling capabilities, including lump mass modeling, trace mapping, reinforcements, and trace modeling.
These options provide a range of simulation speed and accuracy to address the complexities of PCB modeling. Detailed component modeling, including wire bonds, solder, leads, traces, vias, heat sinks, and underfields, can be accounted for using ANSYS's capabilities.
WarpWitch simulations, solder reflow simulations, step-by-step assembly process simulations, shock and vibration simulations, drop test simulations, and moisture effects simulations can all be done using ANSYS tools.
The solder reflow process is important for capturing the solidification and final shape of solder joints to do accurate fatigue simulations. ANSYS Fluent can be used for solder reflow simulations to affect package or PCB WarpWitch calculations and predictions.
ANSYS provides a range of capabilities for modeling and simulating various aspects of electronics reliability, including shock and vibration, moisture effects, drop tests, and solder joint reliability.
These capabilities can help predict the behavior of electronic systems over time and reduce costs associated with physical testing by running simulations to explore and validate design solutions.

