Patent ID: 9159955
Filing Date: 2015-10-13
Classification: H01L

Abstract:
1. A method of patterning an organic device comprising the steps of: (a) providing a patterned product substrate and a pre-defined patterned source substrate, wherein the patterned product substrate has a product principal surface, the product principal surface being defined by a plurality of destination regions, wherein the pre-defined patterned source substrate has a source principal surface, further wherein the pre-defined patterned source substrate has a plurality of optically reflecting regions and a plurality of optically absorbing regions, the plurality of optically reflecting regions and the plurality of optically absorbing regions are arranged such that each optically reflecting region is adjacent to at least one of the plurality of optically absorbing regions, the source principal surface being defined by a plurality of source regions, the plurality of source regions being defined at the plurality of optically reflecting regions, wherein the plurality of source regions has one or more organic materials disposed thereon; (b) aligning the product principal surface and the source principal surface such that each of the plurality of source regions is aligned to exactly one destination region of the plurality of destination regions, wherein the product principal surface is substantially parallel to the source principal surface, further wherein at least one of the product principal surface and the source principal surface has one or more supports to maintain a substantially uniform gap between the plurality of source regions and the plurality of destination regions; (c) raising a temperature of the pre-defined patterned source substrate above a sublimation temperature of the one or more organic materials, wherein the temperature is raised such that, at a location on the pre-defined patterned source substrate, the one or more organic materials, underlying optically reflecting regions of the plurality of optically reflecting regions and one or more underlying layers on the pre-defined patterned source substrate are maintained at a substantially equal temperature; (d) sublimating the one or more organic materials at the optically reflecting regions of the pre-defined patterned source substrate; and (e) redepositing the one or more organic materials at a substantially nearest destination region of the plurality of destination regions on the patterned product substrate.