NOVELTY - The solar cell comprises a substrate (41A) having an upper surface (42A), bus bars (45A) that extend in a first direction across the upper surface of the substrate, and parallel gridlines (44A-1, 44A-2) that extend in a second direction across the upper surface of the substrate. The second direction defines an angle with the first direction such that each of the parallel gridlines intersects the bus bars. The first gridline portions of each gridline are disposed directly on the upper surface of the substrate. The second gridline portions are disposed on the bus bars.    USE - Used as a solar cell.    ADVANTAGE - The solar cell can be economically produced with increased ability, high aspect ratio gridlines and performance and without additional processing steps thus avoiding the peaked topography.    DETAILED DESCRIPTION - The solar cell comprises a substrate (41A) having an upper surface (42A), bus bars (45A) that extend in a first direction across the upper surface of the substrate, and parallel gridlines (44A-1, 44A-2) that extend in a second direction across the upper surface of the substrate. The second direction defines an angle with the first direction such that each of the parallel gridlines intersects the bus bars. The first gridline portions of each gridline are disposed directly on the upper surface of the substrate. The second gridline portions are disposed on the bus bars. The bus bars consist of a first ink having a first chemical composition having a first melting point. Each of the parallel gridlines consists of a second ink having a second chemical composition having a second melting point. The first and second chemical compositions are selected such that contact between the second gridline portions and the bus bars produces a third chemical composition having a third melting point that is lower that the first and second melting points. The first and/or second inks comprise a colloidal gel. The first and second chemical compositions of the first and second inks comprise a first pH level and a second pH level respectively. The second pH level is different from the first pH level. The third composition comprises a third pH level that is different from both the first and second pH levels. An INDEPENDENT CLAIM is included for a method for producing a solar cell.    DESCRIPTION OF DRAWING(S) - The diagram shows a perspective view of a front side metallization structure with a solar cell.    Substrate (41A)    Upper surface (42A)    Parallel gridlines (44A-1, 44A-2)    Elevated gridline portions (44A-12, 44A-22, 44A-32)    Bus bar. (45A)