Patent ID: 8664096
Filing Date: 2014-03-04
Classification: B32B,H01L

Abstract:
1. A method for producing a flexible sheet comprising a barrier layer and metallic elements, intended as a substrate sheet for the manufacture of a thin film semiconductor device, said method comprising: a) providing a metallic layer applied on a polymeric support layer, the metallic layer having a first surface facing the polymeric support layer and a second surface facing away from said polymeric support layer; b) providing metallic elements on the second surface of the metallic layer; c) providing a barrier layer covering said second surface of the metallic layer and said metallic elements, the barrier layer having a first surface facing the metallic layer and a second surface facing away from the metallic layer; d) releasing the polymeric support layer from the metallic layer; and e) removing the metallic layer from the metallic elements and the barrier layer, wherein the metallic layer has a melting temperature which is higher than the evaporation temperature of the polymeric support layer, and wherein the metallic layer is heated to a temperature which is equal to or higher than the evaporation temperature of the polymeric support layer, but lower than the melting temperature of the metallic layer.