Patents for C30B 15 - Single-crystal growth by pulling from a melt, e.g. czochralski method (9,854)
09/1990
09/04/1990US4954211 Monocrystalline lanthanum orthogallate laser material
08/1990
08/30/1990DE3905966A1 Process for growing homogeneous laser garnet crystals in accordance with the Czochralski method
08/22/1990EP0383400A2 Method for growing mixed crystals from multicomponent oxide melts
08/22/1990CN1009284B Mixing germanium and decolourizing technology of zinc tungstate monocrystal
08/21/1990US4951104 Solid-state image pick-up device with uniform distribution of dopant therein and production method therefor
08/08/1990EP0381051A1 Growth of solidified films, particularly semiconductors, from melts using a substrate with a profiled surface
08/08/1990EP0174003B1 Holder for ingot and crucible
08/07/1990US4946746 Melt spinning a molten metal, heat treatment, quenching
07/1990
07/31/1990US4944925 Two heaters
07/31/1990US4944834 Process of pulling a crystal
07/31/1990US4944833 Czochralski pulling of monocrystalline lanthanum orthogallate
07/31/1990CA1272106A1 Double crucible for single crystal growth
07/31/1990CA1272105A1 System for controlling the diameter of a crystal in a crystal growing furnace
07/27/1990CA2005601A1 Substrates provided with a structured surface for growing solidifying layers from melts
07/24/1990US4943160 Interface angle estimation system
07/18/1990EP0227499B1 Mixed lanthanum-magnesium aluminates, process for their production and lasers using these aluminates
07/11/1990EP0377402A2 Potassium niobate crystals and method for their preparation
07/10/1990US4940568 Arrangement for the continuous melting of granulated silicon for a band-drawing method
07/04/1990EP0375882A1 Axis offset measuring device for a crystal pulling apparatus
07/04/1990CN1043537A Potassium niobate crystals
07/03/1990US4938837 Semiconductor single crystal drawing
06/1990
06/26/1990US4937053 Crucible-die assembly to control independently the atmosphere outside and inside the crystallizing hollow, shaped body
06/26/1990US4936949 Czochraski process for growing crystals using double wall crucible
06/26/1990US4936947 Detectors for length, weight, internal pressure connected to adjustable heater; uniform wall thickness
06/20/1990EP0373899A2 Monocrystal ingot pulling apparatus
06/19/1990US4935934 Mixed lanthanide-magnesium gallates and laser using monocrystals of these gallates
06/19/1990US4935046 Manufacture of a quartz glass vessel for the growth of single crystal semiconductor
06/13/1990CN1042954A Apparatus for manufacturing silicon single crystals
05/1990
05/30/1990EP0370440A2 Device for measuring offset of axis crystal lifting wire
05/30/1990CN1042575A Single crystal growth of lithium tetra borate (lbo) using the method of descending crucible
05/23/1990EP0369626A1 Recharging device for Czochralski method
05/23/1990EP0369574A2 An improved method of fabricating solar cells
05/23/1990CN1008125B Process for preparing doped magnesium-lanthanide aluminogallate single crystal
05/22/1990US4927489 Antimony doped silicon crystals; photovoltaic cells
05/16/1990EP0368586A1 Apparatus for manufacturing silicon single crystals
05/15/1990US4926357 Apparatus for measuring diameter of crystal
05/09/1990EP0366698A1 Growth of semiconductor single crystals.
05/05/1990CA2002203A1 Potassium niobate crystals
05/03/1990WO1990004857A1 EPITAXIAL Ba-Y-Cu-O SUPERCONDUCTOR FILM
05/02/1990CN1007856B Mixed lanthanides magnesium aluminate and laser using aluminate single crystal
04/1990
04/25/1990EP0364899A1 Apparatus and process for growing crystals of semiconductor materials
04/25/1990CN1007768B Mixed la-mg aluminate and laser made from aluminate single-crystal
04/24/1990US4919901 Barrier design for crucibles for silicon dendritic web growth
04/19/1990WO1990004054A1 Process and device for pulling crystals according to the czochralski method
04/18/1990EP0363743A2 Preparation of high purity boron
04/17/1990US4916955 Crystal ingot lifting load measuring device
04/11/1990CN1007522B Growing method of yag laser crystal doped with nd and ce
04/10/1990US4915869 Mixed lanthanum-magnesium aluminates
04/10/1990US4915775 Apparatus for adjusting initial position of melt surface
04/10/1990US4915774 Method of manufacturing orientated substrate plates from solid semiconductor blocks from the III-V group
04/10/1990US4915773 Process for growing shaped single crystals
04/04/1990EP0244479B1 Process for producing a semi-isolating substrate made of thermally stable and non-dislocated iii-v material
04/04/1990CN1041011A Method and apparatus for manufacturing silicon single crystals
04/03/1990US4913652 Pyrolytic boron nitride crucible and method for producing the same
04/03/1990US4913199 Arrangement for the complete emptying of quartz tanks or crucibles filled with a silicon melt following silicon band drawing
03/1990
03/28/1990EP0360659A1 Synthetic fused silica glass and method for the preparation thereof
03/28/1990EP0199787B1 Vitreous silica
03/27/1990US4912407 Non-contacting inductively coupled displacement sensor system for detecting levels of conductive, non-magnetic liquids, and method of detecting levels of such liquids
03/27/1990US4911896 Drawing a single crystal silicon rod from molten polysilicon
03/27/1990US4911895 Apparatus for growing crystals of semiconductor materials
03/27/1990US4911780 LEC method for growing a single crystal of compound semiconductors
03/21/1990EP0359159A2 Rotating transition for receptacles having a hot wall
02/1990
02/28/1990EP0355833A2 Method of producing compound semiconductor single crystal
02/28/1990EP0355747A2 Method for monocrystalline growth of dissociative compound semiconductors
02/28/1990EP0355746A2 Method for monocrystalline growth of dissociative compound semiconductors
02/28/1990EP0355476A2 Composition for growth of homogeneous lithium niobate crystals
02/28/1990EP0211855B1 Optical components
02/27/1990US4904143 Apparatus for the continuous feeding of material to be melted
02/27/1990CA1266222A1 Apparatus for replenishing a melt
02/20/1990US4902654 Mixed lanthanide-magnesium aluminates and lasers using monocrystals of these aluminates
02/06/1990US4898641 Controlled deviation of value of double refraction
01/1990
01/18/1990DE3910449A1 Wafer made of semiconductor material
01/17/1990CN1006508B Solid-state image pick-up device with uniform distribution of dopant therein and production method therefor
01/16/1990US4894206 Crucibles, pipes
01/10/1990EP0350305A2 Method and apparatus for manufacturing silicon single crystals
01/10/1990EP0350294A2 Method of manufacturing superconducting oxide materials
12/1989
12/20/1989CN1038134A Lithium niobate single crystal having congruent composition used in surface wave device, and manufacturing process therefor
12/19/1989US4888142 Firing amorphous form in nonoxidizing atmosphere
12/19/1989US4888051 Method for the zone refining of gallium
12/14/1989WO1989012120A1 Lithium niobate single crystals with congruent structure and process for producing them
12/13/1989CN1037999A Mixed lanthanum-magnesium aluminates, their production process and lasers using these aluminates
12/13/1989CN1037933A Method and apparatus for manufacturing silicon single crystals
12/07/1989DE3818674C1 Gastight penetration for rotary and/or reciprocating motion
12/07/1989DE3818537A1 Lithiumniobat-einkristalle mit kongruenter zusammensetzung, insbesondere fuer oberflaechenwellenanordnungen, und verfahren zu deren herstellung Lithium niobate single crystals with congruent composition, in particular for oberflaechenwellenanordnungen, and processes for their preparation
12/05/1989US4884855 Narrow-band optical absorption filter
11/1989
11/08/1989EP0340941A1 Method and apparatus for manufacturing silicon single crystals
10/1989
10/24/1989US4876438 Control of the power to the heater and the speed of movement of a crystal rod by control of the crystal rod diameter
10/17/1989US4874458 Using a floating baffle plate
10/17/1989US4874417 Method of purifying vitreous silica
10/10/1989US4873062 In a sealed vessel with an inner surface of boron nitride or aluminum nitride ; gallium arsenide
10/03/1989US4871517 Apparatus for parting wafer-shaped silicon bodies, useful for solar cells, from a silicon tape manufactured in a horizontal tape-drawing method
10/03/1989US4871117 Low-contamination method for comminuting solid silicon fragments
09/1989
09/26/1989CA1261715A1 Apparatus and process for growing monocrystals of semiconductor materials from shallow crucibles by czochralski technique
09/21/1989WO1989008731A1 Growing semiconductor crystalline materials
09/20/1989CN1035689A Mixing germanium and decolourizing technology of zinc tungstate monocrystal
09/14/1989DE3904858A1 Method and device for controlling a melt bath
09/14/1989DE3806918A1 Appliance for pulling single crystals
09/13/1989EP0332516A1 Apparatus and process for the synthesis and pulling of III-V materials under low pressure
09/06/1989EP0330698A1 PROCESS FOR PURIFYING (Nb1-xTax)2O5 AND THE PREPARATION OF KNb1-xTaxO3-CRYSTALS THEREFROM
09/05/1989US4863554 Process for pulling a single crystal
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