Abstract:
Apparatus comprising means for capturing carbon-containing vapor emanating from carbon-containing substances in the high vacuum environment and in the equipment for producing the high vacuum in the environment, and adsorbent means for adsorbing the carboncontaining vapor.
Abstract:
A process for the production of substantially homogeneously doped p-conductive semiconductor material is described, which comprises subjecting the semiconductor material to be doped to irradiation with .gamma.-photons wherein the semiconductor material is gallium and wherein zinc atoms are produced as doping atoms on irradiation of the gallium with .gamma.-photons.
Abstract:
A process for the production of substantially homogeneously doped p-conductive semiconductor material is described, which comprises subjecting the semiconductor material to be doped to irradiation with .gamma.-photons wherein the semiconductor material is silicon and wherein aluminum atoms are produced as doping atoms on irradiation of the silicon with .gamma.-photons.
Abstract:
A method for producing homogeneously doped silicon monocrystals, with n-conductivity, by neutron irradiation, wherein, after zone-melting in a vacuum and conversion of the polycrystalline rod into the monocrystalline form, the remaining conductivity of the rod is determined , the said rod being then exposed to controlled irradiation with thermal neutrons, based on the conductivity measurement carried out, for the purpose of obtaining the desired n-conductivity.