TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The paste composition further comprises: at least one organometallic compound including an element comprising boron, silicon, vanadium, antimony, phosphorus, yttrium, titanium, nickel, cobalt, zirconium, zinc and/or lithium; an aluminum-silicon alloy, preferably an aluminum-silicon eutectic alloy; and 0.1-10 wt.% of an organic or inorganic additive compound. The metal is titanium, zirconium, nickel, cobalt, zinc and/or vanadium. The conductive metal further includes 20 wt.% of at least one of an aluminum-silicon eutectic, zinc, tin, antimony, silicon, bismuth, indium, molybdenum, palladium, silver, platinum, gold, titanium, vanadium, nickel and/or copper. The glass component: includes at least one of (a) bismuth-zinc based glasses, (b) borosilica glasses, (c) alkali titanate glasses and (d) lead-glasses; is present in an amount of 0.1-10 wt.%; and comprises two or more glasses. The conductive metal component comprises 40-80 wt.% of an aluminum source. The vehicle is present in an amount of 5-30 wt.%. The D50 particle size of the glass component is 0.1-20 microns. The aluminum is provided in powder form having a bimodal particle size distribution. A first D50 average aluminum particle size is 0.5-3 microns and a second D50 average aluminum particle size is 3-40 micron, where no overlap is intended. The viscosity of the paste is 5-80 Pa.s. The metal component comprises both flake and spherical morphologies. The glass component comprises: a glass frit comprising 5-40 mole% of phosphorus pentoxide, 25-65 or 30-70 mole% of lead oxide, 20-50 mole % of vanadium pentoxide, 25-65 or 5-85 mole% of bismuth oxide, 3-60 or 0-55 mole% of zinc oxide, 4-65 mole% of boron oxide, 5-35 mole% of silicon dioxide, and 1-25 mole% of aluminum oxide; or 5-55 mole% of lithium oxide, sodium oxide and potassium oxide, 0.5-25 mole% of titanium dioxide, 5-75 (preferably 5-35) mole% of boron oxide and silicon dioxide, 0-30 mole% of vanadium pentoxide, antimony oxide and phosphorus pentoxide, 0-20 mole% of magnesium oxide, calcium oxide, barium oxide and strontium oxide, and 0-20 mole% of fluorine. The glass component is lead-free. The passivation layer comprises silicon nitride compound of formula (SiNx) (A), aluminum oxide, silicon dioxide, silicon carbide, amorphous silicon, titanium dioxide, aluminum oxide/(A), silicon dioxide/(A) and/or silicon dioxide/aluminum oxide/(A) in a combined thickness of 5-360 nm thick. The refractive index of (A) is 1.8-2.8. N.B: x is not defined.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The organometallic compound: includes at least one 1-50C organic moiety that is linear or branched, saturated or unsaturated, aliphatic, alicyclic, aromatic, araliphatic, halogenated or substituted, optionally having one or more heteroatoms such as oxygen, nitrogen, sulfur, or silicon, and/or including hydrocarbon moieties such as alkyl, alkyloxy, alkoxide, alkylthio, or alkylsilyl moieties; and is metal ethoxides, metal acetonates, metal acetylacetonates, metal carboxylates, metal 2-methylhexanoates, metal 2-ethylhexanoates, metal 2-propylhexanoates, metal acrylates and/or metal methacrylates. The organic vehicle includes oleic acid, Duomeen TDO(RTM: Tallowpropylene diamine dioleate) and DisperB YK 111(RTM: Copolymer with acidic groups) having an acid value of 129 mg potassium hydoxide/g, a density of 1.16 and a flash point over 100 degrees C. Preferred Method: The method further comprises dispersing the organometallic additive, one phosphate glass and one phosphorus compound in the vehicle. The local openings are made by laser ablation or chemical etching using an etchant comprising phosphorus to form dots or lines, where the dot diameter is 20-200 microns and a trench is 100-700 microns wide, or the dot diameter is 20-200 microns and a trench is 0.5-2.0 mm wide. The heating step includes heating to a peak wafer temperature of 660-940 degrees C. EXAMPLE - No suitable example given.