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23 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Crystal |
Regular ordered arrangement of atoms over a large scale |
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Crystalline |
3D ordered periodic array of atoms |
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Semiconductor |
Class of materials whose intrinsic properties are between metal and an insulator |
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Intrinsic |
Inherent properties in true state |
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Extrinsic |
Not part of the inherent properties of something |
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III-V Compound |
Materials made from elements in columns 3 & 5 (5 valence, 3 valence) (GaAs, InP) |
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Elemental |
Semiconductors that have one element |
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Binary |
Compounds that have two elements |
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Ternary |
Compounds that have 3 elements and are a mixture of two binary compounds |
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Quaternary |
Compounds that have four elements and are a mixture of four binary semiconductors |
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Covalent Bonds |
Bond that involves sharing electron pairs between atoms |
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Lattice Constant |
Length of 1 side of a crystal unit cell |
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Bandgap Energy |
The amount of energy required to remove a bound valence electron from an atom in the semiconductor so it can conduct |
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Valence Band |
Highest energy band when the electron is still attached to the atom |
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Lattice |
Periodic arrangement of atoms that comprises a crystal lattice |
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Miller Indicies |
The three integers used to identify planes within a crystal |
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A crystal is made up of what? |
A basis (element or compound) A lattice (repeating pattern) |
Two components |
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Volume Density |
Number of atoms per unit cell volume (cm^-3) |
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Zincblende |
Diamond structures with two atoms |
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Seed |
A small sample of crystal used to grow the ingot |
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Epitaxial Layers |
Single layer that has been deposited or grown on a crystalline substrate having the same structural arrangment |
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Homoepitaxy |
Growth of a crystalline layer that is the same material as the substrate (Ex: GaAs on GaAs) |
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Heteroepitaxy |
Growth of a crystalline layer that is different than the substrate material |
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