NOVELTY - A composite solar cell structure (304) is formed by preparing device substrate forming mating pattern on bonding material (360) to match topography of exposed surface of device substrate; positioning the bonding material over the exposed surface; disposing a back glass substrate (361) over the bonding material to form a composite structure; and compressing the composite structure. The exposed surface comprises back contact layer and one or more internal electrical connections.    USE - Method is used for forming a composite solar cell structure.    ADVANTAGE - The method decreases bubble formation during lamination of large-size substrates used in manufacture of solar cells along production line having suite of modules and improve solar cell quality.    DETAILED DESCRIPTION - Composite solar cell structure (304) is formed by preparing device substrate forming mating pattern on bonding material (360) to match topography of exposed surface of device substrate, the exposed surface comprising the back contact layer and the one or more internal electrical connections; positioning the bonding material over the exposed surface; disposing a back glass substrate (361) over the bonding material to form a composite structure; and compressing the composite structure. The device substrate comprises glass substrate; transparent conductive layer deposited over glass substrate; one or more silicon layers deposited over transparent conductive layer; back contact layer deposited over one or more silicon layers; and one or more internal electrical connections disposed on back contact layer. An INDEPENDENT CLAIM is included for method of preparing pre-patterned bonding material for solar cell assembly which comprises passing bonding material between at least 2 rollers, where at least one roller has embossment, at least portion of the embossment corresponding to topography of exposed surface of device substrate; heating bonding material; and pressing bonding material onto embossment to form mating pattern as bonding material passes through two rollers.    DESCRIPTION OF DRAWING(S) - The drawing is a cross-sectional view showing a composite solar cell structure.    Composite solar cell structure (304)    Contact layer (350)    Side-buss (355)    Bonding material (360)    Glass substrate (361)