Simulating the Thermocompression Bonding of an Underfill Adhesive

Bridget Paulus August 29, 2017

Nonconducting film (NCF) is an emerging underfill adhesive technology used to assemble electronic components in the microelectronics industry. Optimizing the NCF material and process can be difficult, as they must achieve a fast bonding time, high degree of cure, and correct underfill fillet shape. Achieving a successful bond depends on the interaction between the material’s chemorheology and the bonding process parameters. To understand these interactions, Veryst Engineering simulated the flow and cure on an NCF during the thermocompression bonding process.

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Bridget Cunningham August 28, 2017

Pipelines are used to transport petroleum products and natural gas across long distances in cold environments. Because of this, petroleum mixtures may need to be preheated after being transported in pipelines before a refining process can begin. However, as the oil is pumped through the pipeline, heat is generated from the fluid itself as it flows. To keep costs down and the heat inside the pipe, the pipeline insulation can be optimized using models and simulation.

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Brianne Costa August 25, 2017

A leading cause of smog and particulate pollution is the harmful emissions from automobiles, especially those that run on diesel engines. Today, most vehicles with diesel engines are required to install a diesel particulate filter (DPF) to catch carbon-based particulates that are emitted from their exhaust. Using the COMSOL Multiphysics® software, we can analyze the acoustics of a DPF.

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Caty Fairclough August 23, 2017

During his lifetime, Osborne Reynolds contributed to many fields, such as mathematics and thermodynamics. However, his most famous achievements were in the realm of fluid mechanics. To celebrate the anniversary of his birthday, let’s take a brief trip through the life and work of Reynolds, including one of his key accomplishments: the Reynolds number.

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Ruud Börger August 22, 2017

Have you ever feared a deadline because your model took longer to solve than expected? Here, we discuss common causes of time delays and how to prevent them. Let’s start with a real-world example: solving a complex modeling project on a deadline.

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Nancy Bannach August 21, 2017

As of version 5.3 of the COMSOL Multiphysics® software, the Subsurface Flow Module includes useful new features that enable you to set up complex modeling tasks more efficiently. For example, when modeling wells, meshing is significantly easier and is more intuitive to set up with the Well feature. In this blog post, we look at the Well feature, discussing how to use it and ways it enhances the modeling process.

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Magnus Ringh August 17, 2017

During sunny days, it’s tempting to bring food and drinks outside to enjoy the weather. However, it can be a challenge to keep wine (or any beverage) cold in the heat. Wine coolers supposedly keep chilled beverages cold for at least an hour. In this blog post, we use the COMSOL Multiphysics® software to see how a wine cooler works and whether or not it can keep drinks cool.

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Caty Fairclough August 16, 2017

Research shows that microgravity exposure has an effect on the human body, such as by suppressing immune cell activity. This phenomenon also affects cancer cell migration. Making use of this fact can lead to the identification of new therapeutic targets for metastatic cancer cells. In this blog post, we’ll discuss how a research team used the COMSOL Multiphysics® software to design a culturing system to study cancer cell migration in microgravity.

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Caty Fairclough August 15, 2017

Zone electrophoresis separates different species in a sample into distinct well-resolved peaks, giving scientists the ability to analyze substances like proteins and nucleic acids. Improving this electrophoretic separation technique requires us to accurately model the transport and separation of these species. Here, let’s look at how the COMSOL Multiphysics® software can be used to simulate the movement of species during zone electrophoresis.

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Bridget Cunningham August 14, 2017

Compliance testing is used to ensure that various products, processes, and systems meet standard requirements. Just as important as these tests is the equipment used to perform them. This testing equipment must be designed so that it delivers precise measurements that are reflective of real-world performance. RF modeling is a useful approach to analyzing and optimizing such devices, generating greater confidence in the measurements they obtain. To showcase this, we’ll look at a well-known equipment choice in EMC/EMI testing…

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Siva Sashank Tholeti August 10, 2017

Have you ever been curious about how to model supersonic flows, like those around Concorde or fighter jets? Generally, this process requires the resolution of shocks or expansion fans in the flow. Resolving discontinuities (e.g., shock waves) requires a high resolution and the numerical stability of strongly coupled mass, momentum, and energy conservation equations for fluid flow. Let’s discuss how to model supersonic flow past a diamond airfoil, which involves resolving shocks and expansion fans.

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