Editing Electrical engineering (section)

===Microelectronics and nanoelectronics===
{{Main|Integrated circuit design|Semiconductor device modeling|Semiconductor device fabrication}}
{{Further|Microelectronics|Nanoelectronics|Chip design}}
[[File:80486dx2-large.jpg|thumb|right|[[Microprocessor]]]]
[[Microelectronics]] engineering deals with the design and [[microfabrication]] of very small electronic circuit components for use in an [[integrated circuit]] or sometimes for use on their own as a general electronic component.{{Sfn|Bhushan|1997|p=581}} The most common microelectronic components are [[semiconductor]] [[transistor]]s, although all main electronic components ([[resistor]]s, [[capacitor]]s etc.) can be created at a microscopic level.

[[Nanoelectronics]] is the further scaling of devices down to [[nanometer]] levels. Modern devices are already in the nanometer regime, with below 100&nbsp;nm processing having been standard since around 2002.{{Sfn|Mook|2008|p=149}}

Microelectronic components are created by chemically fabricating wafers of semiconductors such as silicon (at higher frequencies, [[compound semiconductor]]s like gallium arsenide and indium phosphide) to obtain the desired transport of electronic charge and control of current. The field of microelectronics involves a significant amount of chemistry and material science and requires the electronic engineer working in the field to have a very good working knowledge of the effects of [[quantum mechanics]].{{sfn|Sullivan|2012}}