Epitaxy Stocks List
Symbol | Grade | Name | % Change | |
---|---|---|---|---|
0NX3 | A | ASM International NV | 0.00 | |
IQE | B | Iqe Plc | -2.26 | |
0FT3 | F | Riber S.A. | 0.00 |
Related Industries: Semiconductor Equipment & Materials
Symbol | Grade | Name | Weight | |
---|---|---|---|---|
ITEC | D | SPDR® MSCI Europe Technology UCITS ETF | 4.57 | |
ESIT | D | iShares MSCI Europe Information Technology Sector UCITS ETF | 4.23 | |
IAEX | B | iShares AEX UCITS ETF | 3.17 | |
UD04 | D | UBS(Lux)Fund Solutions – Factor MSCI EMU Quality UCITS ETF(EUR)A-dis | 2.55 | |
EDIV | B | Lyxor S&P Eurozone ESG Dividend Aristocrats (DR) UCITS ETF EUR Acc GBP | 1.41 |
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- Epitaxy
Epitaxy (prefix epi- means "on top of”) refers to a type of crystal growth or material deposition in which new crystalline layers are formed with one or more well-defined orientations with respect to the crystalline seed layer. The deposited crystalline film is called an epitaxial film or epitaxial layer. The relative orientation(s) of the epitaxial layer to the seed layer is defined in terms of the orientation of the crystal lattice of each material. For most epitaxial growths, the new layer is usually crystalline and each crystallographic domain of the overlayer must have a well-defined orientation relative to the substrate crystal structure. Epitaxy can involve single-crystal structures, although grain-to-grain epitaxy has been observed in granular films. For most technological applications, single domain epitaxy, which is the growth of an overlayer crystal with one well-defined orientation with respect to the substrate crystal, is preferred. Epitaxy can also play an important role while growing superlattice structures.The term epitaxy comes from the Greek roots epi (ἐπί), meaning "above", and taxis (τάξις), meaning "an ordered manner".
One of the main commercial applications of epitaxial growth is in the semiconductor industry, where semiconductor films are grown epitaxially on semiconductor substrate wafers. For the case of epitaxial growth of a planar film atop a substrate wafer, the epitaxial film's lattice will have a specific orientation relative to the substrate wafer's crystalline lattice such as the [001] Miller index of the film aligning with the [001] index of the substrate. In the simplest case, the epitaxial layer can be a continuation of the same exact semiconductor compound as the substrate; this is referred to as homoepitaxy. Otherwise, the epitaxial layer will be composed of a different compound; this is referred to as heteroepitaxy.
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