Patent ID: 7855089
Filing Date: 2010-12-21
Classification: H01L

Abstract:
1. A method for manufacture of application specific unit cells from thin film photovoltaic devices, the method comprising: providing design information for application specific unit cells; processing the design information to determine at least a cell size and a cell shape; providing a transparent substrate having a thickness, a back surface region, a front surface region, and one or more grid-line regions overlying the front side surface region, the one or more grid regions being configured to provide one or more unit cells having the cell size and the cell shape; forming a layered structure including one or more films of photovoltaic materials overlying the front surface region of the transparent substrate; performing at least one or more processes comprising aligning a laser beam from the back surface region through the thickness of the transparent substrate to illuminate a first region within the one or more grid-line regions, subjecting a first portion of the layered structure overlying the first region to absorbed energy from the laser beam to separate the first portion of the layered structure from the first region, and scanning the laser beam from the first region to a second region along the one or more grid-line regions to cause formation of one or more unit cells having the cell size and cell shape; and transferring the one or more unit cells having the cell size and the cell shape.