Currently, Low Temperature Polycrystalline silicon LTPS-TFT is used for commercial AMOLED displays.

* Crystalline silicon on glass, see Polycrystalline silicon photovoltaics

Polycrystalline silicon is sometimes used in displays requiring higher TFT performance.

* Polycrystalline silicon

Polycrystalline silicon | Polycrystalline photovoltaic cells laminated to backing material in a module

Polycrystalline diamond consists of numerous small grains, which are easily seen by the naked eye through strong light absorption and scattering ; it is unsuitable for gems and is used for industrial applications such as mining and cutting tools.

Polycrystalline diamond is often described by the average size ( or grain size ) of the crystals that make it up.

Polycrystalline is the structure of a solid material that, when cooled, forms crystallite grains at different points within it.

Polycrystalline Diamond ( PCD ) is an exceptionally hard coating used on cutters which must withstand high abrasive wear.

Polycrystalline diamond consisting of grain sizes from several nanometers to several micrometers can be grown.

Polycrystalline and single crystal ingots are made from semiconductor materials by pulling from a molten melt.

Polycrystalline tetrathiafulvalene and its analogues result in mobilities in the range 0. 1 – 1. 4 cm < sup > 2 </ sup >/( V · s ).

Polycrystalline materials can be produced in complex geometries using conventional ceramic forming techniques such as pressing, ( hot ) isostatic pressing, and slip casting.

Polycrystalline Ni-base superalloys are used for the disks of the high pressure turbine which can be created using powder metallurgy or casting technology.

Polycrystalline blades are formed using casting technology into a ceramic mold.

Besides flathead bronze screws, silicon bronze Stronghold nails ( made by Independent Nail & Packing Co., Bridgewater, Mass. ) are used extensively in assembly and Weldwood resorcinol glue is used in all the joints.

Her whole body is made of highly advanced synthetic jelly silicon and with 60 artificial joints in her face, neck, and lower body ; she is able to demonstrate realistic facial expressions and sing while simultaneously dancing.

Arsenic is a common n-type dopant in semiconductor electronic devices, and the optoelectronic compound gallium arsenide is the most common semiconductor in use after doped silicon.

The color of amethyst has been demonstrated to result from substitution by irradiation of trivalent iron ( Fe < sup > 3 +</ sup >) for silicon in the structure, in the presence of trace elements of large ionic radius, and, to a certain extent, the amethyst color can naturally result from displacement of transition elements even if the iron concentration is low.

Also, hydrogenated amorphous silicon, a-Si: H in short, is of technical significance for thin film solar cells.

In case of a-Si: H the missing long-range order between silicon atoms is partly induced by the presence by hydrogen in the percent range.

The most investigated example is represented by thin multicrystalline silicon films, where such as the unoriented molecule. An initial amorphous layer was observed in many studies.

Silicon is an alternative to lead ; however, when silicon is used in a brass alloy, the scrap must never be mixed with leaded brass scrap because of contamination and safety problems.

On personal computers and small workstations, the CPU is housed in a single silicon chip called a microprocessor.

When the processors and their interconnect are all implemented on a single silicon chip, the technology is known as a multi-core microprocessor.

Calcium-40 is created in extremely large and hot ( over 2. 5 × 10 < sup > 9 </ sup > K ) stars, as part of the silicon-burning process in which alpha particles are added to silicon atoms.

An example of silicon based life forms takes place in the Alan Dean Foster novel Sentenced to Prism in which the protagonist Evan Orgell is trapped on a planet whose entire ecosystem is mostly silicon-based.

Appearing only in the Star Wars Expanded Universe is the spice spider of Kessel, a creature made of glitterstim spice and silicon that spun crystalline webs harvested by miners as glitterstim spice, an illegal psychoactive narcotic.

The silicon cost of an 8051 is now as low as US $ 0. 001, because some implementations use as few as 2, 200 logic gates and take 0. 0127 square millimeters of silicon.

For example, the density of water increases between its melting point at 0 ° C and 4 ° C ; similar behavior is observed in silicon at low temperatures.

To him also is due the isolation of the elements yttrium, beryllium, and titanium, the observation that " silicium " ( silicon ) can be obtained in crystals, and that some meteoric stones contain organic matter.

The depletion region is free of carriers and has a resistance similar to silicon.

The word " felsic " is a term used in geology to refer to silicate minerals, magma, and rocks which are enriched in the lighter elements such as silicon, oxygen, aluminium, sodium, and potassium.

It is considered archaic now, as the terms " acidic " and " basic rock " were based on an incorrect idea, dating from the 19th century, that silicic acid was the chief form of silicon occurring in rocks.

These metals can form useful silicides when deposited onto silicon.

One method involves introducing a straining step wherein a silicon variant such as silicon-germanium ( SiGe ) is deposited.

Once the epitaxial silicon is deposited, the crystal lattice becomes stretched somewhat, resulting in improved electronic mobility.

An insulating layer of oxide is grown over the channel, then a conductive ( silicon or aluminum ) gate electrode is deposited, and a further thick layer of oxide is deposited over the gate electrode.

Silicon is most commonly deposited by dosing with silicon tetrachloride and hydrogen at approximately 1200 ° C:

The silicon is usually deposited by the decomposition of silane gas ( SiH4 ) on heated sapphire substrates.

Typically, the sensors are deposited on a flat substrate, which may either be passive ( e. g. silicon or glass ) or active, the latter

However, rather than fabricating the transistors from silicon formed into a crystalline silicon wafer, they are made from a thin film of amorphous silicon deposited on a glass panel.

The silicon layer for TFT-LCDs is typically deposited using the PECVD process.

Four resistors were represented by silicon bridges, and other resistors and capacitors were deposited in film form directly onto the silicon block with intervening insulating films.

This is a process in which silicide contacts are formed only in those areas in which deposited metal ( which after annealing becomes a metal component of the silicide ) is in direct contact with silicon, hence, the process is self-aligned.

If a charged quark is passing through the detector, the evidence of this quark will be a curved trajectory in the silicon detector and COT deposited energy in the calorimeter.

If a neutral particle, such as a neutron, passes through the detector, there will be no track in the COT and silicon detector but deposited energy in the hadronic calorimeter.

Muons may appear in the COT and silicon detector and as deposited energy in the muon detectors.