Patents for C30B 33 - After-treatment of single crystals or homogeneous polycrystalline material with defined structure (6,009)
10/1981
10/15/1981WO1981002948A1 Methods of producing sheets of crystalline material and devices made therefrom
10/06/1981US4293590 Hermetic sealing, quartz capsules
10/06/1981US4293589 Process for high pressure oxidation of silicon
10/06/1981US4293099 Recovery of silicon carbide whiskers from coked, converted rice hulls by froth flotation
09/1981
09/08/1981US4287869 Charging system for cutting blade
07/1981
07/07/1981US4277307 Method of restoring Si crystal lattice order after neutron irradiation
06/1981
06/23/1981US4275094 Process for high pressure oxidation of silicon
06/16/1981US4273609 Rinse melt for LPE crystals
05/1981
05/27/1981EP0029146A1 Vapor growth method
05/19/1981US4268538 High-pressure, high-temperature gaseous chemical method for silicon oxidation
05/12/1981US4266507 Cap-mounting mechanism for apparatus for thermal treatment of semiconductors
04/1981
04/29/1981EP0027674A1 Process for producing a disc resonator with a single crystal of magnetic garnet material
04/28/1981CA1100093A1 Properties of crystals
04/16/1981WO1981001016A1 Minimization of strain in single crystals
03/1981
03/17/1981US4256571 Recovery of silicon carbide whiskers from coked, converted rice hulls by selective flocculation-liquid extraction
03/17/1981US4256535 Method of polishing a semiconductor wafer
03/03/1981US4253731 Infrared fiber of AgCl clad AgBr and method of fabrication
03/03/1981US4253417 Closure for thermal reactor
02/1981
02/17/1981US4251317 Bubbling nitrogen through the etchant bath to agitate the wafers
02/10/1981US4249700 Recovery of silicon carbide whiskers from coked, converted rice hulls by liquid-liquid separation
01/1981
01/20/1981US4246003 Lap cutting abrasive
01/14/1981EP0022280A1 Process for the chemical etching of silicon substrates
01/07/1981EP0020993A1 Process for the characterization of the oxygen content of silicon rods drawn by the Czochralski method
01/06/1981US4243473 Method for detecting crystal defects in semiconductor silicon and detecting solution therefor
12/1980
12/02/1980US4236487 Crystal plating apparatus
10/1980
10/30/1980WO1980002247A1 Method of processing diamonds
10/07/1980US4226623 Method for polishing a single crystal or gadolinium gallium garnet
09/1980
09/16/1980US4222839 Workpiece holder and method for plasma reactor apparatus
09/16/1980US4222794 Single crystal nickel superalloy
09/02/1980US4220483 Method of increasing the gettering effect in the bulk of semiconductor bodies utilizing a preliminary thermal annealing step
09/02/1980US4220116 Reactant gas flow structure for a low pressure chemical vapor deposition system
08/1980
08/26/1980US4219199 Molybdenum insoluble in hydrogen peroxide
08/20/1980EP0014528A1 A method of reducing the colour of diamond
08/19/1980CA1084172A1 Process for slicing boules of single crystal material
08/05/1980CA1083253A1 Manufacture of semiconductor ribbon and solar cells
06/1980
06/24/1980US4209008 Photon absorbing surfaces and methods for producing the same
05/1980
05/20/1980US4203387 Cage for low pressure silicon dioxide deposition reactors
05/14/1980EP0010952A1 Method and apparatus for heating semiconductor wafers
05/14/1980EP0010920A1 Liquid phase epitaxial process
04/1980
04/29/1980US4200506 Irradiation with protons, changing crystal lattice structure
04/16/1980EP0009677A1 Quaternary solution for the chemical etching of silicon and method for etching using such a solution
04/08/1980US4196963 Method for eliminating Li2 O out-diffusion in LiNbO3 and LiTaO3 waveguide structures
03/1980
03/19/1980EP0008661A1 Process for the preliminary heating of semiconductor bodies in view of subsequently increasing their internal gettering effect
03/18/1980US4193783 Method of treating a silicon single crystal ingot
02/1980
02/12/1980US4187828 Cutting
02/05/1980US4187140 Ethylenediamine, pyrocatechol and a diazine
01/1980
01/29/1980US4186032 Superheated steam
01/15/1980US4184079 Radiation toughening of diamonds
12/1979
12/25/1979US4180432 Process for etching SiO2 layers to silicon in a moderate vacuum gas plasma
12/04/1979US4177094 Semiconductors
12/04/1979US4177084 Method for producing a low defect layer of silicon-on-sapphire wafer
11/1979
11/13/1979US4174380 Annealing synthetic diamond type Ib
10/1979
10/30/1979CA1065233A1 Heat treatment of cadmium mercury telluride
10/16/1979US4171400 Shaped press-forged normally frangible inorganic crystals
10/16/1979CA1064601A1 Manufacture of semiconductor ribbon
09/1979
09/18/1979US4167915 High-pressure, high-temperature gaseous chemical apparatus
08/1979
08/14/1979CA1060319A1 Composite single crystal article
07/1979
07/17/1979US4161412 Aligned molybdenum fiber a-phase
06/1979
06/27/1979EP0002503A1 Method of etching silicon dioxide
06/05/1979CA1055819A1 Stabilization of aluminum arsenide
05/1979
05/15/1979US4154192 Oxide film; high pressure
05/01/1979US4152536 Solar cells
04/1979
04/17/1979CA1052665A1 Fluid agitation cleaning system
03/1979
03/13/1979US4143544 Applying powder to electrostatically charged surface
02/1979
02/20/1979CA1048790A1 Continuous reflux refining of metals
11/1978
11/07/1978US4124698 Method of chemically sharpening monocrystalline ribbon
11/07/1978CA1041878A1 Method of producing defectless epitaxial layer of gallium phosphide
09/1978
09/26/1978US4116725 Heat treatment of cadmium mercury telluride and product
07/1978
07/25/1978US4103137 Cutting of materials by spark erosion
06/1978
06/27/1978US4097636 Metallized device
06/20/1978US4095329 Manufacture of semiconductor ribbon and solar cells
06/06/1978US4092972 Process of cutting wafers
04/1978
04/18/1978US4084354 Process for slicing boules of single crystal material
04/04/1978US4081928 Silicon slice carrier block and plug assembly
03/1978
03/21/1978US4079522 Apparatus and method for cleaning and drying semiconductors
02/1978
02/28/1978US4076572 Crystal growth and anneal of lead tin telluride by recrystallization from a heterogeneous system
01/1978
01/31/1978US4071396 Vapor phase equilibrium
01/31/1978US4071323 Diffusion crucible and slab member with common metal component in the vapor phase
12/1977
12/13/1977US4062660 Method of producing nickel coated diamond particles
10/1977
10/04/1977US4052584 Method and apparatus for cutting insulating material
10/04/1977US4052251 Silicon dioxide-silicon nitride etch mask
09/1977
09/06/1977US4046618 Method for preparing large single crystal thin films
08/1977
08/23/1977US4043802 Purification, crystallization
08/16/1977US4042419 Process for the removal of specific crystal structure defects from semiconductor discs and the product thereof
07/1977
07/26/1977US4038117 Process for gas polishing sapphire and the like
07/19/1977US4036666 Manufacture of semiconductor ribbon
07/05/1977US4033792 Composite single crystal article
07/05/1977US4033027 Dividing metal plated semiconductor wafers
06/1977
06/21/1977US4031190 High strength halide alloys
04/1977
04/19/1977US4018184 Apparatus for treatment of semiconductor wafer
04/05/1977US4016006 Method of heat treatment of wafers
04/05/1977US4015615 Fluid application system
01/1977
01/11/1977US4002505 Annealing in presence of arsenic vapor
01/04/1977US4001858 Simultaneous molecular beam deposition of monocrystalline and polycrystalline iii(a)-v(a) compounds to produce semiconductor devices
11/1976
11/23/1976US3993534 Method of producing single crystals of gadolinium molybdate family
10/1976
10/05/1976US3984263 Method of producing defectless epitaxial layer of gallium
09/1976
09/07/1976US3979232 Mercury cadmium telluride annealing procedure
08/1976
08/31/1976US3977071 High depth-to-width ratio etching process for monocrystalline germanium semiconductor materials
08/10/1976US3973952 Nickel, chromium, titanium, aluminum, tungsten, molybdenum, tantalum
07/1976
07/06/1976US3967355 Composite single crystal article
1 ... 50 51 52 53 54 55 56 57 58 59 60 61