MEMC ELECTRONIC MATERIALS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 8354
 
  
 
C30B SINGLE-CRYSTAL GROWTH 749
 
  
 
B01D SEPARATION 3131
 
  
 
B24B MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING 264
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277
 
  
 
B05C APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 144
 
  
 
B44C PRODUCING DECORATIVE EFFECTS 133
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1100
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9583363 Processes and apparatus for preparing heterostructures with reduced strain by radial distensionDec 27, 13Feb 28, 17[H01L, C30B]
9583364 Processes and apparatus for preparing heterostructures with reduced strain by radial compressionDec 27, 13Feb 28, 17[H01L, C30B]
7879198 Processes for the purification of trichlorosilane and silicon tetrachlorideNov 14, 05Feb 01, 11[C01B, B01D]
5919303 Process for preparing a silicon melt from a polysilicon chargeOct 16, 97Jul 06, 99[C30B]
5488924 Hopper for use in charging semiconductor source materialDec 06, 93Feb 06, 96[C30B]
5422316 Semiconductor wafer polisher and methodMar 18, 94Jun 06, 95[H01L]
5417767 Wafer carrierDec 28, 93May 23, 95[H01L, B05C]
5418172 Method for detecting sources of contamination in silicon using a contamination monitor waferJun 29, 93May 23, 95[H01L]
5408951 Method for growing silicon crystalJul 21, 93Apr 25, 95[C30B]
5377451 Wafer polishing apparatus and methodFeb 23, 93Jan 03, 95[B24B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0121,802 Wafer Transport CartAbandonedNov 14, 11May 16, 13[B65G, B62B]
2012/0279,438 METHODS FOR PRODUCING SINGLE CRYSTAL SILICON INGOTS WITH REDUCED INCIDENCE OF DISLOCATIONSAbandonedApr 24, 12Nov 08, 12[C30B]
2012/0100,059 Production of Polycrystalline Silicon By The Thermal Decomposition of Trichlorosilane In A Fluidized Bed ReactorAbandonedOct 22, 10Apr 26, 12[C01B]
2012/0100,061 Production of Polycrystalline Silicon in Substantially Closed-loop ProcessesAbandonedOct 22, 10Apr 26, 12[C01B]
2012/0028,555 Grinding Tool For Trapezoid Grinding Of A WaferAbandonedJul 30, 10Feb 02, 12[B24B]
2011/0297,861 Angle Of Repose ValveAbandonedJun 08, 10Dec 08, 11[F16K]
2011/0250,739 EPITAXIAL WAFER HAVING A HEAVILY DOPED SUBSTRATE AND PROCESS FOR THE PREPARATION THEREOFAbandonedJun 21, 11Oct 13, 11[H01L]
2011/0212,547 METHODS FOR MONITORING THE AMOUNT OF METAL CONTAMINATION IMPARTED INTO WAFERS DURING A SEMICONDUCTOR PROCESSAbandonedMay 11, 11Sep 01, 11[H01L]
2011/0212,550 METHODS FOR DETECTING METAL PRECIPITATES IN A SEMICONDUCTOR WAFERAbandonedMay 11, 11Sep 01, 11[H01L]
2011/0177,682 SUPPRESSION OF OXYGEN PRECIPITATION IN HEAVILY DOPED SINGLE CRYSTAL SILICON SUBSTRATESAbandonedFeb 04, 11Jul 21, 11[H01L, C30B]
2011/0158,888 METHODS FOR REDUCING THE DEPOSITION OF SILICON ON REACTOR WALLS USING PERIPHERAL SILICON TETRACHLORIDEAbandonedDec 23, 10Jun 30, 11[C01B]
2011/0146,717 Systems And Methods For Analysis of Water and Substrates Rinsed in WaterAbandonedDec 14, 10Jun 23, 11[B08B]
2011/0148,128 Semiconductor Wafer Transport SystemAbandonedDec 23, 09Jun 23, 11[H01L, B25J]
2010/0304,022 Methods of Making Wafer SupportsAbandonedJul 29, 10Dec 02, 10[C23C, B05D]
2010/0242,831 METHODS FOR WEIGHING A PULLED OBJECT HAVING A CHANGING WEIGHTAbandonedMar 18, 10Sep 30, 10[C30B]
2010/0178,225 METHOD FOR TREATMENT OF A GAS STREAM CONTAINING SILICON TETRAFLUORIDE AND HYDROGEN CHLORIDEAbandonedMar 25, 10Jul 15, 10[B01D]
2010/0150,789 SYSTEMS FOR PRODUCING SILICON TETRAFLUORIDE FROM FLUOROSILICATES IN A FLUIDIZED BED REACTORAbandonedDec 17, 09Jun 17, 10[B01J]
2010/0130,021 METHOD FOR PROCESSING A SILICON-ON-INSULATOR STRUCTUREAbandonedNov 23, 09May 27, 10[H01L]
2010/0098,519 SUPPORT FOR A SEMICONDUCTOR WAFER IN A HIGH TEMPERATURE ENVIRONMENTAbandonedOct 17, 08Apr 22, 10[H01L]
2010/0009,843 PROCESSES FOR PREPARING A CATALYSTAbandonedSep 21, 09Jan 14, 10[B01J]

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