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Class Information
Number: 438/488
Name: Semiconductor device manufacturing: process > Formation of semiconductive active region on any substrate (e.g., fluid growth, deposition) > Polycrystalline semiconductor
Description: Process wherein the deposited semiconductive material is polycrystalline (i.e., possesses multiple crystalline regions having grain boundaries therebetween).

Sub-classes under this class:

Class Number Class Name Patents
438/491 And subsequent doping of polycrystalline semiconductor 117
438/490 Running length (e.g., sheet, strip, etc.) 74
438/489 Simultaneous single crystal formation 184

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
8709858 Tailoring the band gap of solar cells made of liquid silane by adding germanium Apr. 29, 2014
8664097 Manufacturing method of semiconductor device Mar. 4, 2014
8657956 Apparatus for producing solid product Feb. 25, 2014
8658118 High purity crystalline silicon, high purity silicon tetrachloride for processes for producing the same Feb. 25, 2014
8647969 Method for forming a semiconductor layer with improved gap filling properties Feb. 11, 2014
8643097 Trench-gate metal oxide semiconductor device and fabricating method thereof Feb. 4, 2014
8633483 Recrystallization of semiconductor wafers in a thin film capsule and related processes Jan. 21, 2014
8623746 Polysilicon layer, method of preparing the polysilicon layer, thin film transistor using the polysilicon layer, and organic light emitting display device including the thin film transistor Jan. 7, 2014
8618626 Trench Schottky rectifier device and method for manufacturing the same Dec. 31, 2013
8598020 Plasma-enhanced chemical vapor deposition of crystalline germanium Dec. 3, 2013
8591809 Substrate transfer container, gas purge monitoring tool, and semiconductor manufacturing equipment with the same Nov. 26, 2013
8586456 Use of CL2 and/or HCL during silicon epitaxial film formation Nov. 19, 2013
8580661 Method for the hydrogenation of poly-si Nov. 12, 2013
8569153 Method and system for carbon doping control in gallium nitride based devices Oct. 29, 2013
8557687 Method for forming microcrystalline semiconductor film and method for manufacturing thin film transistor Oct. 15, 2013
8557688 Method for fabricating P-type polycrystalline silicon-germanium structure Oct. 15, 2013
8546249 Selective growth of polycrystalline silicon-containing semiconductor material on a silicon-containing semiconductor surface Oct. 1, 2013
8525290 Method of forming memory cell access device Sep. 3, 2013
8501595 Thin film containing nanocrystal particles and method for preparing the same Aug. 6, 2013
8501596 Method for fabricating a micro-electronic device equipped with semi-conductor zones on an insulator with a horizontal GE concentration gradient Aug. 6, 2013
8502304 Semiconductor substrate and semiconductor chip Aug. 6, 2013
8492250 Method for fabricating semiconductor device Jul. 23, 2013
8476638 Plasma CVD apparatus Jul. 2, 2013
8471257 Motherboard, production method of motherboard, and device substrate Jun. 25, 2013
8450140 Method for large-scale manufacturing of photovoltaic cells for a converter panel and photovoltaic converter panel May. 28, 2013
8450139 Method for manufacturing photoelectric conversion device May. 28, 2013
8445333 Method of forming polysilicon, thin film transistor using the polysilicon, and method of fabricating the thin film transistor May. 21, 2013
8445365 Single scan irradiation for crystallization of thin films May. 21, 2013
8440550 Method for forming strained layer with high Ge content on substrate and semiconductor structure May. 14, 2013
8440906 Nanocrystal solar cells processed from solution May. 14, 2013
8441029 Light emitting element including side surface dielectric layer for avoiding impurity adhesion May. 14, 2013
8432380 Display apparatus and information processing apparatus using the same Apr. 30, 2013
8420514 Epitaxial silicon wafer and method for manufacturing same Apr. 16, 2013
8415218 Atomic layer deposition epitaxial silicon growth for TFT flash memory cell Apr. 9, 2013
8409475 Method of making semiconductor nanocrystal composites Apr. 2, 2013
8409895 Gallium nitride-based LED fabrication with PVD-formed aluminum nitride buffer layer Apr. 2, 2013
8399340 Method of manufacturing super-junction semiconductor device Mar. 19, 2013
8389343 Method for manufacturing semiconductor device Mar. 5, 2013
8367527 Method of fabricating polycrystalline silicon thin film Feb. 5, 2013
8357940 Thin film transistor and manufacturing method thereof Jan. 22, 2013
8354673 Semiconductor component Jan. 15, 2013
8344382 Semiconductor device, manufacturing method thereof, and display apparatus using the semiconductor device Jan. 1, 2013
8343857 Manufacturing method of microcrystalline semiconductor film and manufacturing method of semiconductor device Jan. 1, 2013
8343858 Method for manufacturing microcrystalline semiconductor film and method for manufacturing semiconductor device Jan. 1, 2013
8324085 Method of manufacturing crystalline silicon Dec. 4, 2012
8318575 Compressive polycrystalline silicon film and method of manufacture thereof Nov. 27, 2012
8298923 Germanium-containing release layer for transfer of a silicon layer to a substrate Oct. 30, 2012
8278666 Method and apparatus for growing high purity 2H-silicon carbide Oct. 2, 2012
8273639 Atomic layer deposition method and semiconductor device formed by the same Sep. 25, 2012
8258025 Method for manufacturing microcrystalline semiconductor film and thin film transistor Sep. 4, 2012

1 2 3 4 5 6 7 8 9 10 11 12 13

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