NOVELTY - Metal paste comprises: (a) an electrically conductive metal powder selected from silver, copper, or nickel; (b) a lead-free glass frit with a softening point temperature of 550-611 degrees C and comprising 11-33 wt.% of silicon dioxide (SiO2), 0-7 wt.% of aluminum oxide (Al2O3), and 2-10 wt.% of boron oxide (B2O3); and (c) an organic vehicle.    USE - The metal paste is useful for producing silicon solar cells.    ADVANTAGE - The metal paste has poor or even no fire through capability and allows for the production of busbars without or with only poor contact with the silicon substrate, with improved solder leach resistance and good adhesion to the ARC layer on the front-side surface of a silicon solar cell, where good adhesion provides prolonged durability or service life of the silicon solar cell.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a process for the production of a front-side grid electrode comprising: (a) providing a silicon wafer having an antireflective coating (ARC) layer on its front-side; (b) printing and drying the metal paste on the ARC layer on the front-side of the silicon wafer to form two or more parallel busbars; (c) printing and drying a metal paste with fire through capability on the ARC layer to form thin parallel finger lines intersecting the busbars at right angle; and (d) firing the printed and dried metal pastes;    (2) a process for the production of a front-side grid electrode comprising: (a) providing a silicon wafer having an ARC layer on its front-side; (b) printing and drying a metal paste with fire through capability on the ARC layer on the front-side of the silicon wafer to form thin parallel finger lines; (c) printing and drying the metal paste on the ARC layer to form two or more parallel busbars intersecting the finger lines at right angle; and (d) firing the printed and dried metal pastes;    (3) a front-side grid electrode produced by the process above; and    (4) a silicon solar cell comprising a silicon wafer having an ARC layer on its front-side and a front-side grid electrode.