Heat, dust and moisture damage electronic components. Protecting against dust and moisture is fairly straightforward, but heat remains a problem because it is created within the component itself. Anywhere electricity flows, heat is generated as well. There is not always enough space in the electronic component to draw away the waste heat with cooling fins or ventilators. Devices that operate in a hot environment pose an even bigger problem. For example, a drill bit in the oil industry rotates at high speeds thousands of meters below the surface, generating temperatures of up to 250 degrees – not to mention the enormous mechanical load on the electronic components.