Encapsulation process and structure for electronic devices

摘要

Electronic devices, such as photovoltaic, transistor or doped light-emitting devices, can be manufactured with an air-based manufacturing process and device structure that encapsulates the device with air-stable electrodes and active layers that are reasonably stable in their unexcited state. A sheet of flexible material may act as a substrate and a second sheet of material acts as a cover. Getter materials are included in the encapsulated device, with the getter latent or unreactive during the manufacturing process.

主权项

1. A method for forming an electronic device in an encapsulated package, comprising the steps of:
forming an electronic device on a flexible substrate that serves as a barrier to liquids and gases; forming a layer of dry film adhesive; forming a layer of getter material at least partially in contact with the layer of dry film adhesive, wherein the getter material is temporarily inactive, of reduced activity or latent acting when the layer of getter material is formed, and activating the getter material after the encapsulated package is sealed; forming a flexible encapsulation film in contact with at least one of the layer of dry film adhesive and the layer of getter material; and applying the flexible encapsulation film, layer of getter material and layer of dry film adhesive to the substrate while at least one of the getter material and electronic device is exposed to air, thereby forming a sealed encapsulated package comprising air, wherein the layer of dry film adhesive is used to adhere the encapsulation film to the substrate and overlays the electronic device.