The selection of heat-spreader materials is an important consideration for cooling modules in handheld electronic systems. Heat spreaders are typically used in close contact with the source of heat. This can be, for example, a subcomponent, chip, or microelectronic package. The heat spreader transfers and distributes heat from the source to a heat sink through a thermal … [Read more...]
Heat-Blocking Defects Detected Acoustically
In the landing gear control module of an aircraft, a high-voltage IGBT is about to fail. In the solder bonding one chip’s ceramic base to its heat sink are three small air bubbles—voids, in the vocabulary of electronic failures. The three voids are close together, and the largest is almost directly under a hot spot on the die. Collectively the voids have diminished … [Read more...]
Recirculating Chillers for Industrial Lasers
Industrial lasers are used for a wide range of applications including cutting, welding, micro-machining, additive manufacturing, and drilling. No matter the application, industrial laser systems generate a significant amount of heat. There are several different types of industrial laser technologies ultimately distinguished by the power density of the laser and its use. … [Read more...]
Headset Comfort Assessment Through Thermal Analysis and IR Imaging
Introduction Wearable technology is a growing market, projected to reach $2.78 billion in revenue by 2024 [1], and comfort is a major factor driving sales for these devices. Ergonomics and ease of use were cited as major factors in the decision to purchase a virtual reality (VR) headset in a recent consumer survey [2]. While weight and form factor are certainly ergonomic … [Read more...]
The Future of Data Center Cooling: Passive Two-Phase Cooling
Introduction The world is becoming more digitalized than ever before. The workload of data centers has tripled since 2015 [1]. Despite huge progress in thermal management, traditional air-based cooling technology still represents a critical factor that significantly impacts data center operating costs and the environment. Depending on the size and operating conditions of a … [Read more...]
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