Patents for C30B 31 - Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor (2,201)
07/1990
07/24/1990US4943235 Heat-treating apparatus
07/24/1990US4943234 Procedure and equipment for the thermal treatment of semiconductor materials
07/03/1990US4939103 Method of diffusing plurality of dopants simultaneously from vapor phase into semiconductor substrate
07/03/1990US4938992 Methods for thermal transfer with a semiconductor
07/03/1990US4938836 Process for locally increasing the refractive indexes of an electrooptical material usable in guided optics and material obtained by this process
07/03/1990US4938691 Heat-treating apparatus
06/1990
06/20/1990CN1008452B New technique for prepn of monocrystal silicon chip with perfact layer on the surface
05/1990
05/15/1990US4925388 Apparatus for heat treating substrates capable of quick cooling
05/09/1990EP0367750A2 Process for producing a silicon membrane with controlled mechanical stress
05/09/1990EP0367127A1 Synthetic silica glass article for dopant-diffusion process in semiconductors
05/08/1990US4924073 Method of controlling heat treatment apparatus for substrate
04/1990
04/24/1990US4919614 Apparatus for heat treatment of a substrate
04/24/1990US4919304 Bubbler cylinder device
04/03/1990US4914276 Efficient high temperature radiant furnace
03/1990
03/27/1990US4911638 Controlled diffusion environment capsule and system
03/27/1990US4911103 Wafers
03/20/1990US4910156 Doping phosphor into crystal
03/20/1990US4909185 Cantilever and cold zone assembly for loading and unloading an oven
03/07/1990EP0229050B1 Chemical refill system
02/1990
02/28/1990EP0356059A2 Process for doping crystals of wide band gap semiconductors
02/28/1990EP0355658A2 Semiconductor diffusion furnace inner tube
02/27/1990US4904616 Method of depositing arsine, antimony and phosphine substitutes
02/21/1990CN1039893A Component for use in diffusion furnace
01/1990
01/31/1990EP0352607A2 Arsine, antimony and phosphine substitutes
01/17/1990CN1006508B Solid-state image pick-up device with uniform distribution of dopant therein and production method therefor
12/1989
12/26/1989US4888994 Method of carrying objects into and from a furnace, and apparatus for carrying objects into and from a furnace
12/12/1989US4886954 Hot wall diffusion furnace and method for operating the furnace
11/1989
11/28/1989US4883424 Apparatus for heat treating substrates
11/08/1989EP0340802A2 Silicon carbide diffusion tube for semi-conductor
11/08/1989CN1037051A Indium mixed mischcrystal zinc diffusion source
11/02/1989EP0339793A1 Method for forming crystal layer on a substrate
11/02/1989EP0339573A2 Component for use in a diffusion furnace
10/1989
10/25/1989EP0338252A1 Method for doping zinc selenide single crystal
10/24/1989US4876225 Cantilevered diffusion chamber atmospheric loading system and method
10/19/1989DE3810832A1 Treatment device made of quartz glass
10/11/1989EP0221895B1 Container for corrosive liquids
10/11/1989CN1036296A Method and apparatus for temp. treatment of semiconductor materials
10/10/1989US4872554 Reinforced carrier with embedded rigid insert
10/10/1989CA1262294A1 Method of manufacturing a semiconductor device by vapour phase deposition using multiple inlet flow control
10/04/1989CN1036049A Annealing process of vertically pulled silicon doped by neutron transmutation
09/1989
09/21/1989DE3807710A1 Support trestle
09/13/1989EP0201600B1 Solid state laser employing diamond having color centers as a laser active material
09/05/1989US4863657 Method of making semi-conductor diffusion furnace components
08/1989
08/22/1989US4859908 Plasma processing apparatus for large area ion irradiation
08/22/1989US4859385 Mixing fine and coarse silicon powders with binder; shaping, impregnating with silicon, sintering
08/22/1989US4859375 Chemical refill system
08/16/1989EP0327718A2 Method and device for the temperature treatment of semiconductor materials
08/15/1989US4857689 Rapid thermal furnace for semiconductor processing
07/1989
07/19/1989EP0324179A1 Green diamond and method of producing the same
07/18/1989US4849608 Apparatus for heat-treating wafers
07/12/1989EP0323902A2 Apparatus for thermal transfer with a semiconductor wafer in vacuum
07/11/1989US4846902 Gadolium oxide, phosphorous oxide for release of phosphorous oxide
07/05/1989EP0322443A1 Reinforced carrier with embedded rigid insert
06/1989
06/20/1989US4840816 Method of fabricating optical waveguides by ion implantation doping
06/13/1989US4839523 Ion implantation apparatus for semiconductor manufacture
06/06/1989US4836788 Production of solid-state image pick-up device with uniform distribution of dopants
05/1989
05/30/1989US4835006 Process for the passivation of crystal defects
05/23/1989US4832781 Methods and apparatus for thermal transfer with a semiconductor wafer in vacuum
05/18/1989WO1989004386A1 Improved zone melt recrystallization apparatus
05/10/1989CN2037369U Alkali bittern crystal assigning colour instrument
04/1989
04/11/1989US4819579 Coating of semiconductor wafers and apparatus therefor
04/04/1989US4819058 Semiconductor device having a pn junction
03/1989
03/29/1989EP0309272A2 Apparatus and method for sample holders and wafer cages fabricated from silicon carbide for processing semiconductor materials
03/29/1989EP0308695A2 A component for producing semi-conductor devices and process of producing it
03/29/1989EP0067165B1 Improved partial vacuum boron diffusion process
03/22/1989EP0307608A1 Apparatus and process for annealing semiconductor wafers
02/1989
02/21/1989US4806497 Neutron irradiation, ion implantation electron or proton irradiation doping
02/21/1989CA1250209A1 Method of producing ii-v compound semiconductors
02/09/1989DE3725169A1 Method for the patterned incorporation in semiconductor surfaces of dopants which determine conductivity
01/1989
01/12/1989WO1989000333A1 Reinforced carrier with embedded rigid insert
12/1988
12/28/1988CA1247504A Modular v-cvd diffusion furnace
11/1988
11/29/1988CA1245424A1 Porous silicon nitride semiconductor dopant carriers
10/1988
10/18/1988US4778202 Tubular component made out of quartz glass with a flange
10/05/1988EP0285499A1 Method for increasing locally the refractive indices of an electro-optic material for use in optical guide and material obtained by this method
10/05/1988EP0284885A1 Silicon carbide diffusion furnace components with an impervious coating thereon
10/04/1988US4775317 Oven for the heat treatment of semiconductor substrates
09/1988
09/28/1988EP0284107A2 Method of strengthening silicon wafer
09/27/1988US4774195 Process for the manufacture of semiconductor layers on semiconductor bodies or for the diffusion of impurities from compounds into semiconductor bodies utilizing an additional generation of activated hydrogen
09/13/1988US4771021 Consisting of a sintered silicon carbide matrix
08/1988
08/30/1988US4767251 Cantilever apparatus and method for loading wafer boats into cantilever diffusion tubes
08/16/1988US4764394 Method and apparatus for plasma source ion implantation
08/16/1988CA1240480A1 OPTICAL MATERIALS FROM INTERCALATION OF POLYVALENT CATIONS IN .beta. DOUBLE PRIME ALUMINA
08/11/1988WO1988005836A1 Method of improving the sag resistance of a component constructed from fused quartz
08/04/1988DE3701610A1 Tubular furnace, especially for semiconductor technology
08/02/1988US4761134 Refractory coating of silicon nitride, silicon carbide or silicon oxide
07/1988
07/27/1988EP0191023B1 Tubular quartz-glass element with a flange
07/26/1988US4760244 Apparatus for the treatment of semiconductor materials
06/1988
06/28/1988US4753763 Method of manufacturing heating furnace parts
06/28/1988US4753192 Movable core fast cool-down furnace
05/1988
05/31/1988US4748135 Method of manufacturing a semiconductor device by vapor phase deposition using multiple inlet flow control
04/1988
04/27/1988EP0264762A1 Method to passivate crystal defects in a hydrogen plasma
03/1988
03/31/1988DE3633078A1 Method of homogenising indium-doped silicon single-crystal ingots
03/01/1988US4728371 Method for manufacturing regions having adjustable uniform doping in silicon crystal wafers by neutron irradiation
02/1988
02/24/1988CN87105811A Gas phase nitrogen-doping method for straight-pulling monocrystalline silicon
02/16/1988US4725330 Equilibration of lithium niobate crystals
02/02/1988US4722911 Vapor phase epitaxy using complex premixing system
01/1988
01/27/1988CN86104713A Method and apparatus for eliminating fractionation
01/27/1988CN86104706A Carrier gas method and apparatus for formulating a dilute solution of liquid blending agent
01/27/1988CN86104689A Two-source method and apparatus for multilayer epitaxial gaas
01/19/1988US4720407 Double-walled quartz-glass tube for semiconductor-technology processes
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