NOVELTY - Manufacture of photovoltaic module which includes greater than or equal to 2 series-interconnected photovoltaic cells, comprises providing a body of photovoltaic stock material comprising electrically resistive substrate (24), bottom electrode layer (26), top electrode layer (30) and photovoltaic body (28); patterning top electrode layer by removing portions of its thickness to define three electrically isolated segments; scribing two isolation grooves in photovoltaic stock material; and disposing first and second current collecting grid structures upon first and second cell top electrodes, respectively.    USE - Manufacture of photovoltaic module (claimed).    ADVANTAGE - The method minimizes electrical interconnections between individual cells, thus providing for a rugged, simple, easy to fabricate device; and may be readily adapted to the fabrication of ultra lightweight photovoltaic modules where individual cells and electrical interconnection zones of module are all disposed upon a unitary lightweight, flexible substrate.    DETAILED DESCRIPTION - Manufacture of photovoltaic module which includes greater than or equal to 2 series-interconnected photovoltaic cells, comprises:    (A) providing a body of photovoltaic stock material comprising an electrically resistive substrate (24), bottom electrode layer (26) including body of electrically conductive material supported on substrate, top electrode layer (30) including an electrically conductive material in a superposed relationship with bottom electrode layer, and photovoltaic body (28) interposed between bottom electrode layer and top electrode layer;    (B) patterning top electrode layer of photovoltaic stock material by removing portions of its thickness to define three electrically isolated segments of top electrode layer, where first segment comprises a first cell top electrode which cooperates with underlying portions of photovoltaic body and bottom electrode layer to define a first photovoltaic cell, where second segment defines a second cell top electrode which cooperates with underlying portions of photovoltaic body and bottom electrode layer to define a second photovoltaic cell, and where third segment (52) overlies a connection zone of the module;    (C) scribing a first and second isolation grooves in photovoltaic stock material, where each isolation groove extends through the top electrode layer, photovoltaic body and bottom electrode layer to substrate, where grooves are disposed to divide the connection zone into three segments which are electrically isolated from one another, where each segment further includes a portion of bottom electrode layer, where portion of bottom electrode layer of first segment is contiguous with and in electrical communication with the portion of bottom electrode layer of first photovoltaic cell, and where portion of bottom electrode layer of second segment is contiguous with and in electrical communication with the portion of bottom electrode layer of second photovoltaic cell;    (D) disposing a first current collecting grid structure upon the first cell top electrode of first photovoltaic cell, where first current collecting grid structure also establishes electrical communication with the portion of bottom electrode layer of second segment of connection zone; and    (E) disposing a second current collecting grid structure upon the second cell top electrode of second photovoltaic cell, where second grid structure also establishes electrical communication with the portion of bottom electrode layer of third segment of connection zone, and where there is established a series connected string comprising first and second photovoltaic cells.    A thin film photovoltaic material comprises a hydrogenated alloy layer of silicon and/or germanium.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of stock material.    Substrate (24)    Bottom electrode layer (26)    Photovoltaic body (28)    Top electrode layer (30)    Third segment (52)