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Power Supply Components And Thermal Stress

Power supply is the core of electronic equipment. But as crucial as it is, designing a power supply can be difficult due to an indirect feedback loop within design teams, especially when it comes to thermal solutions. It is often more difficult to know what the temperature should be as opposed to what the temperature will be.

Topic: Magnetic Components, Thermal Cycling, LED Failure Modes, temperature cycling, LED, Temperature, electronics failure, Solder Joint Fatigue, Thermal Failure, Sherlock Automated Design Analysis, solder joint, integrated circuits

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Underfill Applications, Materials & Methods

WHAT is UNDERFILL AND WHY is it USEFUL?

Underfill is thermoset epoxies traditionally used in flip chip applications to reduce thermal stresses solder bumps experience due to coefficient of thermal expansion mismatch between a die and the organic substrate. Today, underfills are available in a variety of formulations and are widely used for board level reliability of ball grid array components by reducing thermal and mechanical loads under harsh use environments. Careful consideration to the underfill material properties and intended use environments must be made to assess the relative reliability improvements underfills offer.

Topic: Electronics Reliability, Solder Joint Fatigue, solder joint, Mechanical Design, integrated circuits, Reliability Physics

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