Patents for C30B 31 - Diffusion or doping processes for single crystals or homogeneous polycrystalline material with defined structure; Apparatus therefor (2,201)
01/1981
01/13/1981US4244753 Method for purification of II-VI crystals
01/06/1981US4243427 High concentration phosphoro-silica spin-on dopant
12/1980
12/16/1980US4239560 Open tube aluminum oxide disc diffusion
11/1980
11/27/1980WO1980002622A1 Boat for conveying semiconductor substrates
11/26/1980EP0019272A1 Method for diffusing p-type dopants into silicon wafers
11/11/1980US4232439 Masking technique usable in manufacturing semiconductor devices
08/1980
08/19/1980US4218214 Guide wing for a furnace paddle
08/12/1980US4217154 Method for control of an open gallium diffusion
07/1980
07/29/1980CA1082574A1 Method of producing n-doped silicon crystals having a particular radial resistivity profile
07/08/1980US4211182 Diffusion apparatus
06/1980
06/03/1980US4206251 Method for diffusing metals into substrates
06/03/1980US4206026 Phosphorus diffusion process for semiconductors
05/1980
05/20/1980US4203940 Crystal wafer rack structures and the method of producing the same
05/14/1980EP0010952A1 Method and apparatus for heating semiconductor wafers
05/06/1980US4201623 Method for making epitaxial silicon crystals with uniform doping levels
04/1980
04/15/1980CA1075435A2 Aluminum metaphosphate source body for doping silicon
04/08/1980CA1075374A1 Semiconductor isolation method
03/1980
03/19/1980EP0008642A1 Method of diffusing boron in silicon bodies
03/11/1980US4193003 Method for controlling the migration of a chemical species within a solid substrate
02/1980
02/26/1980US4190458 Metal-silica solution for forming films on semiconductor surfaces
02/26/1980CA1072423A2 Method of producing homogeneously doped semiconductor material of p-conductivity
02/26/1980CA1072422A2 Method of producing homogeneously doped semiconductor material of p-conductivity
02/05/1980US4187124 Process for doping semiconductors
01/1980
01/22/1980US4184897 Droplet migration doping using carrier droplets
01/01/1980US4181627 Dopes, heat treatment, zinc, zinc sulfide
12/1979
12/25/1979CA1068583A Method of producing homogeneously doped semiconductor material of p-conductivity
11/1979
11/27/1979US4175988 Melt-formed polycrystalline ceramics and dopant hosts containing phosphorus
10/1979
10/30/1979CA1065498A1 Open tube gallium diffusion process for semiconductor devices
09/1979
09/04/1979CA1061686A1 Apparatus for doping a semiconductor crystalline rod
08/1979
08/28/1979CA1061225A1 Method of diffusing impurities in semiconductor bodies
08/28/1979CA1061100A1 Boron doping of semiconductors
07/1979
07/24/1979CA1059158A1 Solid diffusion sources for phosphorus doping
07/10/1979US4160672 Glass-ceramics for semiconductor doping
06/1979
06/26/1979US4159215 Aluminum carrier, antimony dope, temperature gradient zone melting
05/1979
05/29/1979CA1055620A1 Semiconductor diffusions from ion implanted films
04/1979
04/24/1979CA1053130A1 Method and apparatus for doping semiconductors in centrifuge
04/03/1979US4147432 Apparatus for thermal diffusion by high frequency induction heating of semiconductor substrates
02/1979
02/20/1979US4140735 Process and apparatus for bubbling gas through a high purity liquid
01/1979
01/30/1979US4137457 Method of producing implanted areas in a substrate
01/09/1979CA1045784A1 Preparation of pyrophosphates
01/02/1979CA1045523A1 N-conductivity silicon mono-crystals produced by neutron irradiation
12/1978
12/12/1978US4129090 Apparatus for diffusion into semiconductor wafers
11/1978
11/21/1978US4126713 Crosslinking tetraethyl ortho-silicate
11/07/1978US4124417 Method of diffusing impurities in semiconductor bodies
10/1978
10/10/1978US4119441 Method for the production of n-doped silicon with a dish-shaped profile of specific resistance in a radial direction
09/1978
09/12/1978US4113513 Method of manufacturing a semiconductor device by non-selectively implanting a zone of pre-determined low resistivity
09/05/1978CA1037840A1 Method for diffusing impurities into nitride semiconductor crystals
08/1978
08/22/1978US4108106 Cross-flow reactor
08/08/1978US4105477 Doping of (hg,cd)te with a group va element
07/1978
07/25/1978US4102666 Method of surface crystallizing quartz
07/11/1978US4100310 Carrier gas, semiconductor
07/04/1978US4098223 Apparatus for heat treating semiconductor wafers
06/1978
06/27/1978US4096822 Gaseous atmosphere control apparatus for a semiconductor manufacturing system
06/06/1978US4093201 Disc support structure
04/1978
04/25/1978US4086108 Radiation
02/1978
02/28/1978US4075972 Apparatus for thermal diffusion of semiconductor devices
12/1977
12/20/1977US4063967 Method of producing a doped zone of one conductivity type in a semiconductor body utilizing an ion-implanted polycrystalline dopant source
12/13/1977US4062714 Process for making hollow silicon bodies and bodies utilizing board-shaped members to form the basic geometric shape so made
10/1977
10/11/1977US4053294 Quartz, dimensional stability
09/1977
09/13/1977US4048508 Apparatus for doping a semiconductor crystalline rod
08/1977
08/16/1977US4042454 Method of producing homogeneously doped n-type Si monocrystals by thermal neutron radiation
08/02/1977US4039726 Altering the appearance of corundum crystals
07/1977
07/05/1977US4033790 Yttrium oxide, lanthanum oxide, cerium oxide, phosphorous oxide
06/1977
06/28/1977US4032418 Method of introducing impurities into a semiconductor
06/07/1977US4027622 Apparatus for doping semiconductors in centrifuge
05/1977
05/31/1977US4027051 Method of producing homogeneously doped n-type Si monocrystals and adjusting dopant concentration therein by thermal neutron radiation
05/24/1977US4025464 Hot pressed compact of phosphorus nitride and silicon oxide
05/24/1977US4025365 Method of producing homogeneously doped p-conductive semiconductor materials
05/03/1977US4020791 Apparatus for indiffusing dopants into semiconductor material
04/1977
04/19/1977US4018184 Apparatus for treatment of semiconductor wafer
04/19/1977US4018183 Apparatus for treating a plurality of semiconductor slices to a reacting gas current
04/05/1977US4016006 Method of heat treatment of wafers
12/1976
12/21/1976US3998668 Aluminum metaphosphate dopant sources
12/21/1976US3998667 Barium aluminoborosilicate glass-ceramics for semiconductor doping
12/21/1976US3998333 Carrier for processing semiconductor materials
12/14/1976US3997379 Diffusion of conductivity modifiers into a semiconductor body
12/14/1976US3997351 Boron oxide
10/1976
10/05/1976US3984267 Process and apparatus for diffusion of semiconductor materials
09/1976
09/28/1976US3982967 Method of proton-enhanced diffusion for simultaneously forming integrated circuit regions of varying depths
09/07/1976US3979235 Depositing doped material on a substrate
08/1976
08/17/1976US3975308 Preparation of pyrophosphates
08/17/1976US3974561 Method of producing directly heatable hollow semiconductor bodies
08/03/1976US3972838 Phosphorus nitride-silicon dioxide wafer
06/1976
06/22/1976US3964984 Method of producing photochromic sodalite crystals
06/08/1976US3962670 Heatable hollow semiconductor
06/08/1976US3962391 Disc support structure and method of producing the same
06/08/1976US3962000 Barium aluminoborosilicate glass-ceramics for semiconductor doping
06/08/1976US3961969 Glass-ceramics for semiconductor doping
05/1976
05/18/1976US3957547 Method for doping semiconductors in centrifuge
05/11/1976US3956037 Method of forming semiconductor layers by vapor growth
05/11/1976US3956036 Method of diffusing silicon slices with dopant at high temperatures
05/04/1976US3954525 Hot-pressed solid diffusion sources for phosphorus
04/1976
04/20/1976US3951587 Silicon carbide diffusion furnace components
04/13/1976US3950596 Altering the appearance of corundum crystals
04/06/1976US3948696 Method of diffusion into semiconductor wafers
04/06/1976US3948695 Method of diffusing an impurity into semiconductor wafers
03/1976
03/09/1976US3943015 Monocrystalline silicon
02/1976
02/17/1976US3939017 Process for depositing the deposition agent on the surface of a number of semiconductor substrates
01/1976
01/13/1976US3932239 Semiconductor diffusion process
01/06/1976US3931056 Solid diffusion sources for phosphorus doping containing silicon and zirconium pyrophosphates
1 ... 12 13 14 15 16 17 18 19 20 21 22 23