Patents for C30B 33 - After-treatment of single crystals or homogeneous polycrystalline material with defined structure (6,009)
07/1994
07/12/1994US5328360 Heat-treating apparatus
06/1994
06/29/1994EP0603849A2 Method for producing a semiconducteur substrate by using a bonding process, and semiconductor stubstrate produced by the same
06/29/1994EP0603391A1 Vertical heat treatment apparatus and heat insulating material
06/15/1994CN1025044C Process of toughing diamond particle surface
06/14/1994US5320982 Wafer cooling method and apparatus
06/08/1994EP0600276A2 Process for production of a laterally limited monocrystal area by selective epitaxy and its application for production of a bipolar transistor as well as well as a MOS-transistor
06/01/1994EP0599516A2 Process for removing surface contaminants from III-V semiconductors
05/1994
05/31/1994US5317186 Ring crystallization of wafers to prevent thermal shock
05/24/1994US5314846 Method for processing a semiconductor wafer
05/11/1994DE4237576A1 Prodn. of textured layer of metal oxide superconductor - by applying barrier layer to substrate and depositing superconducting material to barrier layer
05/03/1994US5309543 Method of making infrared crystalline fiber and product
05/03/1994US5308801 Process for the increase in critical temperature of high Tc superconductors
04/1994
04/26/1994US5306699 A chemical reactor having apertures for venting the volatile materials
04/26/1994CA1328784C Article having surface layer of uniformly oriented, crystalline, organic microstructures
04/13/1994CN1024220C Process for producing optical waveguide and product therefrom
04/06/1994EP0590871A1 Thinning a diamond body by means of molten rare-earth-containing alloys
03/1994
03/31/1994WO1993020265A3 Process for reducing the damage susceptibility of optical quality crystals
03/30/1994EP0589199A1 Etching of CaF2
03/30/1994EP0423327B1 Apparatus and method for treating flat substrates under reduced pressure
03/29/1994US5298106 Method of doping single crystal diamond for electronic devices
03/23/1994EP0588376A1 Monocrystal ingot attitude-adjusting device
03/23/1994EP0588055A2 Method for manufacturing wafer
03/22/1994US5296412 Method of heat treating semiconductor wafers by varying the pressure and temperature
03/17/1994WO1993020266A3 Process for reducing damage susceptibility in optical-quality crystals
03/17/1994DE4242565C1 Verfahren zur Justage von Halbleiterscheiben zueinander Method for the adjustment of semiconductor wafers to each other
03/16/1994CN1083874A Heat treating method of straightly pulled monocrystalline silicon in nitrogen-containing atmosphere
03/01/1994US5291205 Radio frequency automatic identification system
02/1994
02/22/1994CA1327126C Process for treating diamond grains
02/16/1994EP0341267B1 Process for producing an optical waveguide and the product therefrom
02/16/1994CN1023822C Process for polassium iodate crystal
02/15/1994US5285597 Method and arrangement for subdividing semiconductor bars into semiconductor wafers
02/03/1994WO1993021364A3 Epitaxially strengthened single crystal aluminum garnet reinforcement fibers
02/03/1994WO1993014250A3 Process for surface treatment with ions
02/03/1994DE4225171A1 Mfg. semiconductor element with differently doped layers - by wafer silicon@ bonding and wafer thinning
02/02/1994EP0581438A2 Etching a diamond body with a molten or partially molten metal
02/02/1994CN1023654C Lithium niobate crystal (LN) room-temp. corrosive and its application
02/01/1994US5282926 Method of anisotropically etching monocrystalline, disk-shaped wafers
01/1994
01/26/1994EP0580162A1 Wafer with defined grinded warp and process for manufacturing
01/20/1994DE4323964A1 Treating semiconductor substrate in gas atmos. - to suppress formation of bulk micro defects
01/20/1994DE4223215A1 Processing silicon@ wafer having deformable micro mechanical structure - comprising adhering foil to lower side of wafer and removing foil after processing
01/18/1994US5279992 Method of producing a wafer having a curved notch
01/18/1994US5279077 Method for producing semiconductor wafer
01/11/1994US5277366 High temperature annealing; cutters; durability, hardness
01/05/1994CN2151987Y Crystal annealing device
01/04/1994US5275687 Process for removing surface contaminants from III-V semiconductors
12/1993
12/28/1993US5273616 Method of producing sheets of crystalline material and devices made therefrom
12/28/1993US5273424 Vertical heat treatment apparatus
12/28/1993US5273423 Heat treatment apparatus
12/23/1993WO1993021365A3 Method for making a discontinuity lattice at the surface of a crystalline substrate
12/21/1993US5271796 Method and apparatus for detecting defect on semiconductor substrate surface
12/21/1993US5271732 Heat-treating apparatus
12/15/1993EP0573943A1 Method for the manufacture of large single crystals
12/08/1993EP0573312A2 Diamond doping
11/1993
11/30/1993US5266236 Thermally stable dense electrically conductive diamond compacts
11/25/1993WO1993023713A1 Vertical heat treatment apparatus and heat insulating material
11/18/1993EP0570100A2 Method and apparatus for determination of interstitial oxygen concentration in silicon single crystal
11/16/1993US5262021 Doping a silicon wafer, etching with fluoride to produce holes
11/16/1993US5261935 Clean air apparatus
11/11/1993DE4314152A1 Appts. to eliminate tendency of wafer substrates to swing in semiconductor processing - comprising elastically deformable ring with its inner periphery lying next to source
11/10/1993EP0568696A1 PRODUCTION OF CLEAN, WELL-ORDERED CdTe SURFACES USING LASER ABLATION.
11/09/1993US5260251 Sputtering an oxide film on a dielectric substrate from the target compounds and heating in oxygen atmosphere in deposited film in presence of thalium and lead oxide source
11/09/1993US5259917 Exposing semiconductor crystal to high energy ionizing radiation to produce within crystal energetic photo electrons yielding defect donors to cancel acceptors in crystal
11/09/1993US5259900 Reflux annealing device and method
11/09/1993US5259883 Method of thermally processing semiconductor wafers and an apparatus therefor
11/04/1993DE4234196A1 Synthetic prodn. of diamond and borazon - by polymerising graphite or hexagonal boron nitride crystals in electromagnetic field at room temp. and atmos. pressure using Lewis acid as initiator
11/02/1993US5257926 Fast, safe, pyrogenic external torch assembly
10/1993
10/28/1993WO1993021365A2 Method for making a discontinuity lattice at the surface of a crystalline substrate
10/28/1993WO1993021364A2 Epitaxially strengthened single crystal aluminum garnet reinforcement fibers
10/27/1993EP0567129A2 Method of working diamond
10/19/1993US5254507 Semi-insulating InP single crystals, semiconductor devices having substrates of the crystals and processes for producing the same
10/19/1993US5254209 Method of making micromechanical components
10/14/1993WO1993020266A2 Process for reducing damage susceptibility in optical-quality crystals
10/14/1993WO1993020265A2 Process for reducing the damage susceptibility of optical quality crystals
10/12/1993US5252173 Process for growing semiconductor layer on substrate
10/12/1993CA1322936C Process for producing an optical waveguide and the product therefrom
10/05/1993US5250147 Epitaxial growth; depositing second component in from to produce precipitate or inclusions in first component; heat treatment to redist ribute and coalesce
10/05/1993CA2024134C Hydrogen plasma passivation of gaas
09/1993
09/30/1993DE4209865A1 Removal of metal residues from semiconductor surfaces - using aq. cleaning compsn. treated with carbon di:oxide and/or oxalic acid
09/29/1993EP0562273A2 Method for improving the interface characteristics of CaF2 on silicon
09/29/1993CN1076736A Annealing technology of chromium-doped zinc tungstate monocrystal
09/21/1993US5245790 Ultrasonic energy enhanced chemi-mechanical polishing of silicon wafers
09/15/1993EP0559986A2 Method for producing semiconductor wafer and substrate used for producing the semiconductor
09/15/1993CN1076227A Polarization process and device for doped lithium columbate crystal
09/14/1993US5245187 Microtip, process for preparation thereof, surface-observing apparatus and information-treating apparatus employing the same
09/08/1993EP0558925A1 Method for controlling roughness on surface of monocrystal
09/07/1993US5243620 High power reflectors for laser technology
09/07/1993US5242896 Metal oxides, heat treatment to transform crystal structure
09/02/1993DE4206173A1 Prodn. of micro-mechanical components - by chemically pretreating silicon@ wafers, placing on each other, and heating
09/01/1993EP0557415A1 Process for achieving controlled precipitation profiles in silicon wafers
08/1993
08/24/1993CA1321530C Diamond laser crystal and method of manufacturing the same
08/19/1993WO1993016213A1 Process and device for surface-modification by physico-chemical reactions of gases or vapours on surfaces, using highly-charged ions
08/17/1993US5236181 Vertical heat treating apparatus
08/10/1993US5234501 Oxidation metod
08/10/1993CA1321122C Processes for enchancing fluorescence of ti:a1_0_ tunable laser crystals
08/05/1993WO1993015243A1 Process for producing rigid bonds between monocrystalline bodies
08/04/1993EP0553852A2 Process for producing semiconductor substrate
08/04/1993EP0553465A1 Process for the manufacture of a perforated work article
08/03/1993CA1320897C Method and apparatus for making inorganic webs and structures formed thereof
07/1993
07/29/1993DE4302067A1 Chemical-mechanical planarising - by turning semiconductor wafer, planarising, and polishing wafer
07/27/1993US5230747 Wafer having chamfered bend portions in the joint regions between the contour of the wafer and the cut-away portion of the wafer
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