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Class Information
Number: 252/950
Name: Compositions > Doping agent source material
Description: Cross-reference collection directed to materials which supply a foreign substance for incorporation, in very minor, "impurity" amounts, in an element, compound or composition to impart a desired property thereto.

Sub-classes under this class:

Class Number Class Name Patents
252/951 For vapor transport 47

Patents under this class:

Patent Number Title Of Patent Date Issued
7883573 Method for preparing a source material for ion implantation Feb. 8, 2011
6695903 Dopant pastes for the production of p, p+, and n, n+ regions in semiconductors Feb. 24, 2004
5866094 Method of feeding dopant for continuously-charged method and a dopant composition Feb. 2, 1999
5656541 Low temperature P.sub.2 O.sub.5 oxide diffusion source Aug. 12, 1997
5350460 High temperature phosphorus oxide diffusion source Sep. 27, 1994
5350461 Low temperature P.sub.2 O.sub.5 oxide diffusion source Sep. 27, 1994
5182348 Arylmethylols, their preparation and their use Jan. 26, 1993
5112775 Method of making diamond N-type semiconductor diamond p-n junction diode using diphosphorus pentoxide and hot filament CVD method May. 12, 1992
5024867 Dopant film and methods of diffusing impurity into and manufacturing a semiconductor wafer Jun. 18, 1991
4929572 Dopant of arsenic, method for the preparation thereof and method for doping of semiconductor therewith May. 29, 1990
4891331 Method for doping silicon wafers using Al.sub.2 O.sub.3 /P.sub.2 O.sub.5 composition Jan. 2, 1990
4889830 Zinc diffusion in the presence of cadmium into indium phosphide Dec. 26, 1989
4798764 Arsenate dopant sources and method of making the sources Jan. 17, 1989
4749615 Semiconductor dopant source Jun. 7, 1988
4734386 Boron nitride dopant source for diffusion doping Mar. 29, 1988
4588455 Planar diffusion source May. 13, 1986
4571366 Process for forming a doped oxide film and doped semiconductor Feb. 18, 1986
4502898 Diffusion procedure for semiconductor compound Mar. 5, 1985
4490192 Stable suspensions of boron, phosphorus, antimony and arsenic dopants Dec. 25, 1984
4477964 Method of making p-i-n photodiodes Oct. 23, 1984
4447276 Molecular beam epitaxy electrolytic dopant source May. 8, 1984
4317680 Diffusion source and method of preparing Mar. 2, 1982
4282282 Barium aluminosilicate glasses, glass-ceramics and dopant Aug. 4, 1981
4266990 Process for diffusion of aluminum into a semiconductor May. 12, 1981
4251285 Diffusion of dopant from optical coating and single step formation of PN junction in silicon solar cell and coating thereon Feb. 17, 1981
4243427 High concentration phosphoro-silica spin-on dopant Jan. 6, 1981
4243475 Method for etching a phosphorus-nitrogen-oxygen coating Jan. 6, 1981
4239560 Open tube aluminum oxide disc diffusion Dec. 16, 1980
4190458 Metal-silica solution for forming films on semiconductor surfaces Feb. 26, 1980
4175988 Melt-formed polycrystalline ceramics and dopant hosts containing phosphorus Nov. 27, 1979
4172158 Method of forming a phosphorus-nitrogen-oxygen film on a substrate Oct. 23, 1979
4160672 Glass-ceramics for semiconductor doping Jul. 10, 1979
4152286 Composition and method for forming a doped oxide film May. 1, 1979
4129463 Polycrystalline silicon semiconducting material by nuclear transmutation doping Dec. 12, 1978
4053551 Methods of recovering terbium oxide from a glass Oct. 11, 1977
4033790 Solid diffusion dopants for semiconductors and method of making the same Jul. 5, 1977
4025464 Composition for diffusing phosphorus May. 24, 1977
3998668 Aluminum metaphosphate dopant sources Dec. 21, 1976
3998667 Barium aluminoborosilicate glass-ceramics for semiconductor doping Dec. 21, 1976
3994755 Liquid phase epitaxial process for growing semi-insulating GaAs layers Nov. 30, 1976
3975308 Preparation of pyrophosphates Aug. 17, 1976
3972838 Composition for diffusing phosphorus Aug. 3, 1976
3961969 Glass-ceramics for semiconductor doping Jun. 8, 1976
3954525 Hot-pressed solid diffusion sources for phosphorus May. 4, 1976
3935039 Method of manufacturing a green light-emitting gallium phosphide device Jan. 27, 1976
3931039 Composition for diffusing phosphorus Jan. 6, 1976

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