Polysilicon Broken

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Purity Is Our Recipe for Success

Polysilicon is indispensable for high-performance semiconductors and solar cells. WACKER is the only European company to rank among the global market leaders in this highly competitive business – a position primarily due to the …

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CN206511205U

The utility model provides a kind of polysilicon and packs anti-broken bag blanking device automatically, it includes weighing hopper, blanking groove and lift clutch below weighing hopper, it is connected to the rotatable parts between blanking groove and lift clutch, and it is arranged on the sack automatic-fixing device on blanking groove, the lift clutch is used to lift blanking …

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AT15230U1

The present invention discloses a connection structure for broken silicon cores of polysilicon comprising a first refracted silicon core and a second refracted silicon core, characterized in that the invention structure further comprises a connecting silicon core, wherein an end face of the first refracted silicon core is provided with a first conical hole wherein an end surface of the second ...

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Purity Polysilicon

2.6.2.3.1.3 Polysilicon Products. After removal of the large polysilicon rods from the reactor, the rods are taken to a clean room, inspected, and broken into the specified chunk sizes. To reduce surface contamination, it may be necessary to chemically etch and rinse the rod sections and chunks. For SOG polysilicon purity, a chemical surface ...

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Pinholes on thermally grown oxide under polysilicon layer after plasma

Pinholes on the thermally grown oxide, which is called gate oxide, on silicon substrate under polysilicon layer are observed and its mechanism is analyzed in this paper. The oxide under a polysilicon layer is broken during the plasma etching process of other polysilicon layer. Both polysilicon layers are separated with 0.8 μm thick oxide deposited by CVD (Chemical Vapor …

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Fracture strength of polysilicon at stress concentrations

Mechanical design of MEMS requires the ability to predict the strength of load-carrying components with stress concentrations. The majority of these microdevices are made of brittle materials such as polysilicon, which exhibit higher fracture strengths when smaller volumes or areas are involved. A review of the literature shows that the fracture strength of polysilicon …

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AT15213U1

The present invention discloses a compound structure for broken silicon cores of polysilicon comprising a first refracted silicon core and a second refracted silicon core, characterized in that the interconnect further comprises a connecting silicon core, wherein an end surface of the first refracted silicon core is provided with a first conical hole wherein an end face of the second …

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CN110621619B

CN110621619B CN201880027331.0A CN201880027331A CN110621619B CN 110621619 B CN110621619 B CN 110621619B CN 201880027331 A CN201880027331 A CN 201880027331A CN 110621619 B CN110621619 B CN 110621619B Authority CN China Prior art keywords polysilicon broken etching cleaning chip set Prior art date Legal status (The legal …

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DE10204176A1

Device for inexpensive fully automatic transport, weighing, portioning, filling and packaging of a high-purity polysilicon break, comprising DOLLAR A - a conveyor trough (1) for the polysilicon break (2), DOLLAR A - a weighing device (3) for the polysilicon break (2), which with a funnel (4), DOLLAR A - baffles (5) made of silicon, DOLLAR A - a filling device (6), which …

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Polysilicon

Polysilicon is the most common material for designing surface-micromachined devices. Polysilicon has material properties similar to single crystal silicon and can be doped via introducing impurities. ... After removal of the large polysilicon rods from the reactor, the rods are taken to a clean room, inspected, and broken into the specified ...

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Pinholes on thermally grown oxide under polysilicon layer …

Pinholes on the thermally grown oxide, which is called gate oxide, on silicon substrate under polysilicon layer are observed and its mechanism is analyzed in this paper. The oxide under a polysilicon layer is broken during the plasma etching process of other polysilicon layer. Both polysilicon layers are separated with 0.8 μm thick oxide deposited by CVD …

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polycrystalline silicon scrap

★ Solar grade polysilicon scrap, broken wafer scrap ★ Off-grade polysilicon lump from smelt factories ★ Polysilicon ingot scraps and Polysilicon pot scraps. Polycrystalline silicon Type: Si Composition (%) 3N Polycrystalline silicon: 99.9: 4N Polycrystalline silicon: 99.99: 5N Polycrystalline silicon: 99.999:

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AT15231U1

The present invention discloses a compound structure for broken silicon cores of polysilicon comprising a first refracted silicon core and a second refracted silicon core, characterized in that the interconnect further comprises a connecting silicon core, wherein an end surface of the first refracted silicon core is provided with a first conical hole wherein an end face of the second …

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Fabrication of Bulk Semiconductor Crystals | BYU Cleanroom

The Polysilicon is mechanically broken into 1 to 3 inch chunks and undergoes stringent surface etching and cleaning in a cleanroom environment. These chunks are then packed into quartz crucibles for meltdown (at 1420 o C) in a CZ furnace. A monocrystalline Silicon seed is installed into a seed shaft in the upper chamber of the furnace.

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Polysilicon

Poly-Si feedstock, usually large rods, are broken into pieces of various sizes and are cast into multicrystalline ingots, or are further processed and recrystallized to grow single crystal boules.

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