Method and structure for using discontinuous laser scribe lines

摘要

A thin film photovoltaic device includes a substrate and a first conductive layer coupled to the substrate. The first conductive layer includes at least one first groove extending through a first portion of the first conductive layer to a portion of the substrate. The device also includes at least one semiconductor layer coupled to a remaining portion of the first conductive layer and the portion of the substrate. The at least one semiconductor layer includes a plurality of non-overlapping vias, each via extending through a portion of the at least one semiconductor layer to a portion of the first conductive layer. The device further includes a second conductive layer coupled to a remaining portion of the at least one semiconductor layer and portions of the first conductive layer. The second conductive layer includes at least one second groove extending through a portion of the second conductive layer to a portion of the at least one semiconductor layer.

主权项

1. A method of forming a thin film photovoltaic module, the method comprising:
providing a substrate having a first surface and a second surface opposing the first surface, wherein the substrate has a first conductive layer coupled to the first surface; removing a portion of the first conductive layer to expose a portion of the first surface; forming at least one semiconductor layer coupled to remaining portions of the first conductive layer and the portion of the first surface; removing, using laser energy, a first portion of the at least one semiconductor layer to form a plurality of non-overlapping vias extending through the removed first portion of the at least one semiconductor layer to the first conductive layer, using a single laser pulse per via; forming a second conductive layer coupled to a remaining portion of the at least one semiconductor layer and portions of the first conductive layer exposed by the plurality of vias; and removing, using laser energy, a portion of the second conductive layer to expose a second portion of the at least one semiconductor layer.