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With over 2000 terms defined and explained, Semiconductor Glossary is the most complete reference in the field of semiconductors on the market today.












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Term (Index) Definition
lattice  periodic arrangement of atoms in a crystal specific to a given material; lattice constant, a, defines distance between atoms in cubic-cell crystals.
Term (Index) Definition
a , lattice constant  defines distance between atoms in cubic-cell crystals; measure of structural compatibility between various crystals.
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lattice  periodic arrangement of atoms in a crystal specific to a given material; lattice constant, a, defines distance between atoms in cubic-cell crystals.
Term (Index) Definition
diamond lattice  crystal structure which belongs to the face-centered cubic class of crystals; several semiconductors, most notably silicon, crystallize following diamond lattice.

Reference: See Semiconductor Notes for more information
Face-Centered Cubic, FCC, cell  the crystalline structure of key semiconductors is based on the FCC cell; FCC cell along with body-centered cubic (BCC) and simple cubic cell belongs to the cubic system; diamond lattice (e.g. Si, Ge) and zinc blend lattice (e.g. GaAs, GaP) are FCC sublattices.
zinc blend lattice  crystal structure which belongs to the cubic-crystal family; most ot the III-V compound semiconductors have a zincblend lattice.

Reference: See Semiconductor Notes for more information
Term (Index) Definition
lattice constant , a  distance between atoms in cubic-cell crystals; measure of structural compatibility of various crystals.
lattice  periodic arrangement of atoms in a crystal specific to a given material; lattice constant, a, defines distance between atoms in cubic-cell crystals.
lattice mismatch  term refers to the situation where two materials featuring different lattice constants are brought together by deposition of one material on top of another; in general, lattice mismatch will prevent growth of defect-free epitaxial film unless thickness of the film is below certain critical thickness; in this last case lattice mismatch is compensated by the strain in the film.
lattice matched structure  structure consisting of ultra-thin layers of single crystal semiconductors (typically III-V)of different chemical composition, but featuring the same lattice constant; allows changes of energy gap from layer to layer maintaining the same crystallographic structure throughtout the entire stack; very common in advanced LEDs and laser diodes.
Term (Index) Definition
lattice matched structure  structure consisting of ultra-thin layers of single crystal semiconductors (typically III-V)of different chemical composition, but featuring the same lattice constant; allows changes of energy gap from layer to layer maintaining the same crystallographic structure throughtout the entire stack; very common in advanced LEDs and laser diodes.
bandgap engineering  processes in which energy gap of semiconductor is altered in the desired way by changing chemical composition of semiconductor; e.g. by adding Al bandgap of GaAs can be altered; used in superlattice fabrication.
superlattice  semiconductor structure comprising of several ultra-thin layers (atomic layers) engineered to obtain specific electronic and photonic properties; slight modifications of chemical composition of each layer result in slight variations of energy bandgap from layer to layer: bandgap engineering; fabrication of superlattices requires high-precision heteroepitaxial deposition methods such as MBE and MOCVD; typically involves III-V semiconductors.
lattice constant , a  distance between atoms in cubic-cell crystals; measure of structural compatibility of various crystals.
Term (Index) Definition
lattice mismatch  term refers to the situation where two materials featuring different lattice constants are brought together by deposition of one material on top of another; in general, lattice mismatch will prevent growth of defect-free epitaxial film unless thickness of the film is below certain critical thickness; in this last case lattice mismatch is compensated by the strain in the film.
pseudomorphic material  term concerns lattice-mismatched heterostructures; psuedomorphic film is a layer of single-crystal material on single-crystal substrate featuring slightly different chemical composition, and hence, slightly different lattice constant; lattice mismatch is accommodated by strain in the film; thinner than certain critical thickness (hc)above which stress in the film is released by formation of dislocation.
strained layer supperlattice, SLS  a structure comprising of several epitaxial layers of lattice mismatched materials thin enough to avoid formation of dislocation (pseudomorphic films); strain affects electronic properties of materials involved; by controlling thickness of each film and its chemical composition the SLS structures can be designed to perform several unusual electronic and photonic functions in various device configurations.
Term (Index) Definition
zinc blend lattice  crystal structure which belongs to the cubic-crystal family; most ot the III-V compound semiconductors have a zincblend lattice.

Reference: See Semiconductor Notes for more information
diamond lattice  crystal structure which belongs to the face-centered cubic class of crystals; several semiconductors, most notably silicon, crystallize following diamond lattice.

Reference: See Semiconductor Notes for more information
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