Epitaxial Wafer Market: Technology and Opportunities
United States/WA: The global epitaxial wafer market is estimated to exhibit a CAGR of 12.4% over the forecast period
Report Pages:[133 Pages]
Market Competitive Landscape:-
Major layers operating in the Global Epitaxial Wafer Market are: EpiWorks Inc., Global Wafers Japan Co. Ltd., Nichia Corporation, SHOWA DENKO K.K., Siltronic AG, Desert Silicon Inc., Electronics and Materials Corporation Ltd. Intelligent Epitaxy Technology Inc.IQE plc. , Jenoptic AG, MOSPEC Semiconductor Corporation, Norstel AB, Ommic S.A., Silicon Valley Microelectronics Inc. ,SVT Associates Inc. Universal Wafer Inc., Wafer Works Corporation, Xiamen Powerway Advanced Materials Co. Ltd., and Visual Photonics Epitaxy Co. Ltd.
An epitaxial wafer (also called epi wafer, epi-wafer, or epiwafer) is a wafer of semiconducting material made by epitaxial growth (epitaxy) for use in photonics, microelectronics, spintronics, or photovoltaics. The epi layer may be the same material as the substrate, typically monocrystalline silicon, or it may be a more exotic material with specific desirable qualities. The epitaxial layers may consist of compounds with particular desirable features such as gallium nitride (GaN), gallium arsenide (GaAs), or some combination of the elements gallium, indium, aluminum, nitrogen, phosphorus or arsenic.
Epitaxy is a process in which an additional monocrystalline silicon layer is deposited on to the polished crystal surface of a silicon wafer. This process makes it possible to select the material properties independently of the polished substrate, and consequently to create wafers that have different properties in the substrate and the epitaxial layer. In many cases this is necessary for the semiconductor component’s function.
Epitaxial layers are doped in situ during the growth of the layer. The dopants used for epi are usually As or P, for n-type epi layers, and B for p-type epi. The gas-phase species for these dopants are AsH3, PH3, B2H6, or, much less commonly, BCl3. The hydride doping species are typically purchased in high-pressure gas cylinders containing 10–100 ppm of the hydride in H2. However, if exceptionally high concentrations of doping are necessary in the epi layer, these dopants can be purchased as pure components, although concentrations in the range of 1%–10% diluted with H2 or an inert gas are more common.
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Detailed Segmentation:
- Global Epitaxial Wafer Market, By Deposition Type:
- Heteroepitaxy
- Homeoepitaxy
- 50mm to 100mm
- 100mm to 150mm
- Above 150mm
- LED Semiconductor
- Power Semiconductor
- MEMS-based devices
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