Patents for C30B 15 - Single-crystal growth by pulling from a melt, e.g. czochralski method (9,854)
03/1995
03/01/1995CN1099434A Process for producing rods or blocks of semiconductor material which expands on solidification by crystallization of a melt produced from granular material, and also an apparatus for carrying out.....
02/1995
02/28/1995US5392729 Method of producing silicon single crystal
02/22/1995EP0639662A1 Crucible, inparticular two part supporting crucible.
02/15/1995EP0438390B1 Process and device for pulling crystals according to the czochralski method
02/15/1995CN1027654C Method for extraction rare-earth-iron-single-crystal with suspended cold crucible
02/14/1995US5389582 Cristobalite reinforcement of quartz glass
02/01/1995EP0636715A1 Composite seed material
02/01/1995EP0636714A1 Composite metal oxide material
01/1995
01/25/1995EP0635879A2 Semiconductor silicon wafer and process for producing it
01/25/1995EP0635588A1 Improved method for growing silicon crystal
01/25/1995CN1027514C Cesium triborate monocrystal growth method and nonlinear optical device made by that method
01/18/1995EP0634504A1 Process for the production of rods and ingots from semiconductor material expanding on solidification, by crystallisation of a melt prepared from granules, and device therefore
01/17/1995US5381754 CsB3 O5 crystal and its nonlinear optical devices
01/12/1995DE4423540A1 Ultrapure aluminium conductor at extremely low temperature
01/12/1995DE4423539A1 Ultrapure aluminium conductor at extremely low temperature
01/10/1995US5379717 Method of growing single crystal of compound semiconductors
01/08/1995CA2127404A1 High purity aluminum conductor used at ultra low temperature
01/07/1995CA2127401A1 High purity aluminum conductor used at ultra low temperature
01/03/1995US5378900 Crystal diameter measuring device
12/1994
12/20/1994US5373808 Method and apparatus for producing compound semiconductor single crystal of high decomposition pressure
12/20/1994US5373807 Apparatus for growing multiple single crystals
12/20/1994US5373805 Single crystal pulling apparatus
12/20/1994US5373804 Single silicon crystal having low OSF density induced by oxidation and method for production thereof
12/14/1994EP0628645A1 Spiral heater for use in Czochralski crystal pullers
12/13/1994US5372090 Multipart support crucible and method for producing the same
12/08/1994WO1994028207A1 Cast dopant for crystal growing
12/08/1994WO1994028206A1 Apparatus and method for manufacturing single-crystal material
12/08/1994DE4318184A1 Method and appliance for pulling single crystals
12/06/1994US5370078 Method and apparatus for crystal growth with shape and segregation control
12/06/1994US5370077 Apparatus for melt drawing a single crystal
12/06/1994US5370076 Seeding by immersion a seed crystal in the melt
12/06/1994CA2015950C System for continuously replenishing melt
11/1994
11/29/1994US5367979 Monocrystal growing method
11/23/1994EP0625595A2 Control of oxygen concentration in single crystal pulled up from melt containing group-V element
11/22/1994US5366583 Process for preparing barium titanate single crystals
11/17/1994EP0624664A2 Method of preparing metal oxide crystal
11/17/1994EP0624663A1 Composite material and method of preparing same
11/17/1994DE4325522C1 Crucible, in particular support crucible
11/15/1994US5363796 Apparatus and method of growing single crystal
11/15/1994US5363795 Czochralski crystal pulling process and an apparatus for carrying out the same
11/08/1994US5361721 Continuous process; from molten polycrystals such as silicon
11/02/1994CN1094461A Method for growing multiple single crystals and apparatus for use threin
11/01/1994US5360599 Heater in lift rod
11/01/1994US5360480 Apparatus for continuously feeding material to a melting crucible
11/01/1994US5359959 Maintaining rotational speed of crucible constant while varying intensity of magnetic field to control interstitial oxygen concentration along axial direction of rod
10/1994
10/26/1994CN1094166A Optical refractor of cerium doped barium titanate crystal and its manufacture
10/25/1994US5359452 Lithium tantalate monocrystal, monocrystal substrate, and photo element
10/18/1994US5356113 Isolation valve for single crystal pulling apparatus
10/12/1994EP0619387A1 Pull method for growth of single crystal using density detector and apparatus therefor
10/05/1994CN1026134C System for controlling crystal growth apparatus and melt replenishment system therefor
10/04/1994CA2028808C Dislocation free compound semiconductor wafer
09/1994
09/29/1994DE4409296A1 Method for producing silicon single crystals
09/29/1994DE4309769A1 Method and appliance for reducing the incorporation of oxygen into a single crystal of silicon
09/27/1994US5349921 Growing semiconductor crystalline materials
08/1994
08/31/1994EP0612867A1 Inert gas rectifying/blowing apparatus for single crystal pulling device
08/23/1994US5341389 Ytterbium- and neodymium-doped vanadate laser hose crystals having the apatite crystal structure
08/23/1994US5340553 Deoxygenation and dehydration by the heated silicon
08/23/1994US5340434 Process for producing silicon single crystal
08/17/1994EP0610830A1 Method and apparatus for producing a Czochralski growth semiconductor single-crystal
08/10/1994EP0610065A1 Crucible for pulling silicon single crystal
08/10/1994CN1025634C Optical dioptric device of barium stronium crystal and making method thereof
08/03/1994EP0608875A1 System for pulling-up monocrystal and method of exhausting silicon oxide
08/03/1994EP0608213A1 Apparatus for growing hollow crystalline bodies from the melt
07/1994
07/19/1994US5330729 Single crystal pulling apparatus
06/1994
06/29/1994CN1088635A Yttrium aluminium garnet laser crystal doped with Nd, Tb and Ce, and preparing tech.
06/29/1994CN1088634A Preparing method for melting monocrystal directional solidification material in electromagnetic field
06/28/1994US5324488 Continuous liquid silicon recharging process in czochralski crucible pulling
06/01/1994EP0599350A2 Crystal diameter measuring device
05/1994
05/31/1994US5316742 Single crystal pulling apparatus
05/24/1994US5314871 Substrate of single crystal of oxide, device using said substrate and method of producing said superconductive device
05/24/1994US5314667 Method and apparatus for single crystal silicon production
05/18/1994CN1024571C System for continuously replenishing melted material
05/17/1994US5312600 Silicon single crystal manufacturing apparatus
05/11/1994EP0438528B1 Epitaxial ba-y-cu-o supraconductor film
05/10/1994US5311532 Calcium-yttrium silicate oxyapatite lasers
05/10/1994US5310448 Preparing charge of specified limits of lithium and niobium oxides, melting, drawing; uniformity; acoustic and optical applications
05/04/1994EP0595269A1 Single crystal pulling apparatus having slidable shield plate to control area of opening around single crystal
05/03/1994US5308446 Fused quartz member for use in semiconductor manufacture
04/1994
04/26/1994US5306474 Double crucible formed of quartz; alumina or mullite support
04/26/1994US5306473 Having inner transparent layer and outer opaque layer
04/26/1994US5306388 Quartz glass crucible for pulling a semiconductor single crystal
04/26/1994US5306387 Controlling the oxygenconcentration by adjusting the rotation speed of quartz crucible
04/20/1994CN1085612A Growing method for caesium triborate monocrystal and non-linear optical appliance produced with it
04/19/1994US5304534 Method and apparatus for forming high-critical-temperature superconducting layers on flat and/or elongated substrates
04/13/1994EP0591525A1 Device for pulling up single crystal
04/12/1994US5302839 Light emitting diode having an improved GaP compound substrate for an epitaxial growth layer thereon
04/12/1994US5302559 Mixed crystals of doped rare earth gallium garnet
04/06/1994EP0590964A1 Isolation valve for single crystal pulling apparatus
03/1994
03/29/1994US5298109 Sheet drawing process; melt is crystallized on substrate
03/23/1994EP0588355A1 Process for control of the melt level during single crystal pulling
03/08/1994US5292487 Single crystal manufacture
03/08/1994US5292486 Pulling crystals from a melt
03/01/1994US5290395 Method of and apparatus for preparing single crystal
02/1994
02/22/1994US5288366 Growing one crystal from source material in crucible, extracting portion of the melt remaining, adding high purity source material
02/22/1994US5288363 Adjusting pulling speed so crystal diameter control deviation approaches zero
02/15/1994US5287373 Chromium doped mixed metal fluoride
02/15/1994US5287213 Barium strontium titanate photorefractive device and method for making the same
02/15/1994US5286461 Method and apparatus for melt level detection in czochralski crystal growth systems
02/10/1994DE4225571A1 Lithium niobate single crystal of homogeneous compsn. - is grown from constantly compsn. corrected melt, used esp. for surface wave devices
02/09/1994CN1023721C Tungsten bronzes light-refracting crystal and thechnology for making it
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