Abstract: The invention pertains to a method for making a solar cell module comprising solar cells connected in series, comprising the steps of: a) making in a system composed of a substrate-overlaid by a first electrode layer, itself overlaid by an active layer, a first, interruption, groove providing an interrupt in the front electrode and the active layer and a second, interconnection, groove through the active layer, the first and second grooves being positioned close to each other; b) inserting an insulating compound into the interruption groove; c) applying a lift-off compound onto the active layer at a position adjacent to the interconnection groove on the other side of the interconnection groove than the insulation groove; d) applying the second electrode; e) removing the lift-off compound and the overlaying second electrode at that position to obtain a groove in the second electrode.

Abstract: The invention pertains to a method for making a solar cell module comprising solar cells connected in series, comprising the steps of: a) making in a system composed of a substrate-overlaid by a first electrode layer, itself overlaid by an active layer, a first, interruption, groove providing an interrupt in the front electrode and the active layer and a second, interconnection, groove through the active layer, the first and second grooves being positioned close to each other; b) inserting an insulating compound into the interruption groove; c) applying a lift-off compound onto the active layer at a position adjacent to the interconnection groove on the other side of the interconnection groove than the insulation groove; d) applying the second electrode; e) removing the lift-off compound and the overlaying second electrode at that position to obtain a groove in the second electrode.

Abstract: A process for determining the thickness and/or change in thickness of a thin layer applied to a carrier, the process comprising radiating the carrier coated with the thin layer with a plane polarized light beam at a single incident angle and detecting the reflectance on the carrier and layer. The light reflected by the carrier and the thin layer is split into a p-polarized part and an s-polarized part, after which the respective intensities (I.sub.s).sub.r and (I.sub.p).sub.r l of the reflected s-polarized light and p-polarized light are measured simultaneously for the two parts, and calculating a quantity M according to the equation: ##EQU1## in which formula R.sub.s is the ratio of the intensities (I.sub.s).sub.r and (I.sub.s).sub.i of the reflected and incident s-polarized light, respectively;R.sub.p is the ratio of the intensities (I.sub.p).sub.r and (I.sub.p).sub.i of the reflected and incident p-polarized light, respectively;m is the ratio of the intensities (I.sub.p).sub.i and (I.sub.s).sub.