TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The oxide medium printed on the surfaces of the silicon wafer after drying and condensing, without doping the substrate, has the gettering effect on the printed silicon and improves the lifetimes of the minority charge carriers. The silicon wafer is printed with a highly viscous gettering medium, which acts as a diffusion barrier against phosphorus- and boron diffusion after its thermal compaction and glazing. The gettering medium comprises: boron-containing compounds consisting of boron oxide, boric acid and boric acid; and/or phosphorus-containing compounds consisting of phosphorus(V) oxide, phosphoric acid, polyphosphoric acid, phosphoric esters, and phosphoric esters with alpha - and/or beta -position siloxane functionalized groups. The layers glazed on the surfaces are disposed, by a heat treatment at a temperature of 750-1100 degrees C, preferably 850-1100 degrees C and silicon doped atoms such as boron and/or phosphorus, on the substrate to influence the conductivity of the substrate. The printed substrate: transports dopants in a depth of up to 1 mu m, based on the thermal treatment at a temperature of 750-1100 degrees C, preferably 850-1100 degrees C; and produces electrical sheet resistances of up to 10 Omega /square at a surface concentration of the dopant of greater than or equal to 1x 1021 atoms/cm3. The concentration of the parasitic dopant on the treated substrates differs by at least two powers of ten of doped regions intended by doping. The gettering medium is printed on hydrophilic and/or hydrophobic silicon wafer surfaces. The aromatic radicals are functionalized at any position of alkoxide radical or alkyl radical by heteroatoms comprising oxygen, nitrogen, sulfur, chlorine, or bromine. The printed gettering medium on the basis of hybrid-sols and/or gels is prepared using alcoholates/esters, acetates, and/or hydroxides or oxides of aluminum, germanium, zinc, tin, titanium, zirconium, or lead.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The gettering medium includes strong carboxylic acid comprising formic acid, acetic acid, oxalic acid, trifluoroacetic acid, mono-, di-and trichloroacetic acid, glyoxylic acid, tartaric acid, maleic acid, malonic acid, pyruvic acid, malic acid, and 2-oxoglutaric acid. The gettering medium is distilled up to a highly viscous, glass-like mass, and the product obtained is brought in contact either by the addition of a suitable solvent or solvent mixture in solution or is transformed with the help of intensive shear mixing devices in a sol state and is partially or completely converted by a permanent structure back recovery (gelation) to form a homogeneous gel. A capping agent comprising acetoxytrialkylsilane, alkoxytrialkylsilane, halogentrialkylsilane and their derivatives individually or in mixture is used to improve the stability of the gettering medium. The used gettering medium is formulated without the addition of thickener as the highly viscous oxide medium.