If you have any experience with electronic device design, you're likely aware of the importance of heat sinks. If not, it is critical to understand where heat comes from at the board level. In an electronic device, electricity doesn't always flow through the various components at a steady rate. Instead, it often meets several elements that produce resistance, and as this occurs, the excess energy is released in the form of heat. Since personal computers and other devices constantly move electricity around, they are capable of generating substantial amounts of heat, which could potentially damage associated components. To prevent this, designers incorporate heat sinks, which are specialized components used to keep the device cool.