polysilicon


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polysilicon

(POLYcrystalline SILICON) Silicon with many single-crystal regions of different sizes and orientations. It is used as the gate in MOS transistors as well as an interconnect between them. It is also used to "grow" a monocrystalline (single-crystal) ingot that is sliced into wafers for chip manufacturing (see crystalline silicon for details). See crystalline and LTPS LCD.
References in periodicals archive ?
The phase 3B Project is intended to increase the firm's polysilicon annual nameplate capacity from the present 18,000 MT to 25,000 MT.
The Asia-Pacific region is the largest market for polysilicon
The report contains a comprehensive analysis of the global polysilicon industry along with detailed study of regional markets including China and Japan.
I am pleased that existing differences concerning the prices for our polysilicon exports to China have been successfully resolved through dialogue," said WACKER CEO Rudolf Staudigl in an initial statement.
In order to achieve single mode behaviour using polysilicon, a waveguide of width < 3 pm is used with a strip waveguide design [1].
However, bidders also include a China/US consortium between Chengda Engineering Corp and US specialists, Poly Plant Project; a German consortium between hi-tech facility design engineers M+W and equipment specialist Schmid Silicon Technology; and, a US/Korean link-up between polysilicon equipment specialist GT Advanced Technologies and Samsung Engineering.
IHS believes China is likely to impose antidumping tariffs with rates ranging from 30 to 50 percent on polysilicon imported from the European Union, the United States and South Korea, said Glenn Gu, senior analyst, photovoltaics, at IHS.
8-million order for prototype polysilicon chambers from an existing tier-1 client.
In phase one QSTec's $1bn polysilicon manufacturing plant will produce 8,000 metric tonnes per year (MTPY) of polysilicon and is designed to expand as demand grows.
However, steep downturn of global solar energy market has affected polysilicon operations including Motech's.
A silicon nitride is deposited silane decomposition on the 4 inch silicon (100) wafer, and polysilicon is then deposited on top of the silicon nitride by silane decomposition.
Saudi-based Idea Polysilicon Company (IPC), a top integrated polysilicon and solar wafers firm, has signed an agreement with Germany's Centrotherm Photovoltaic to help develop its SR4 billion ($1.