Understanding the Different Methods of Measuring Mobility in Semiconductors
Mobility in solid-state electronics is measured by the amount of energy required to cause the atoms to travel from one place to another. Mobility in a semiconductor is measured by the amount of energy needed to change the crystal structure. The concept of mobility is used for a number of semiconductor devices. For example, the mobility in a semiconductor device may be measured by a device that is used in many MRI scanners to determine the intensity of images.
Mobility, in classical physics, measurement of how easy a certain type of electromagnetic charged particle can move through a solid object at the influence of a strong magnetic field. These electrons, which are charged, are pulled along by a strong magnetic field and occasionally collide with nearby atoms. When such collisions occur, it causes the electrons to release a small amount of energy that results in a change in the size and shape of their atoms.
Mobility in semiconductors is used to measure the energy that is required to repel and attract particles of different sizes and shapes. In a semiconductor, the electrons are attracted to atoms that have a specific size. If this size is smaller than the electron, then the electrons will repel each other and move apart. Conversely, if the size of the electron is larger than the size of the atom, then the electrons will repel each other and move together.
In a semiconductor, mobility can also be measured by measuring the energy that is needed to bind the electrons together. This method is used by many lasers for different purposes. For example, one form of laser is used to create the bubbles used in ultrasound technology.
Mobility in a semiconductor is also measured by measuring the movement of electrons across the surface of the material. If the electrons are moving faster than the speed of light, then the semiconductor is said to be “superconductive.” In most cases, the semiconductor material is also known as a “ferromagnet.” Other methods of determining mobility include measuring the motion of charged atoms.
In general, the amount of mobility in a semiconductor material is directly related to the amount of charge that exists between the atoms in the material. Thus, if the density of atoms is very high, there is a very high level of mobility in the material. On the other hand, if the density of atoms is very low, then there is a very low level of mobility.