Patent ID: 7584701
Filing Date: 2009-09-08
Classification: H01L

Abstract:
1. A process for forming an electronic device comprising: placing a workpiece over a chuck within a printing apparatus; activating a temperature adjusting element within the printing apparatus; establishing the workpiece at a first temperature; forming a first electrode, a second electrode, and a third electrode over a substrate before continuously printing a first liquid composition, wherein said first liquid composition includes a red light-emitting material and is subsequently printed over the first electrode; establishing the first liquid composition at a second temperature, wherein at least a 5° C. difference exists between the first temperature and the second temperature; continuously printing the first liquid composition over the workpiece, wherein continuously printing is performed using the printing apparatus; allowing a viscosity of the first liquid composition to increase by at least 4 centipoise within one second of contacting the workpiece; continuously printing a second liquid composition over the workpiece, wherein continuously printing the second liquid composition is performed using the printing apparatus and after allowing the at least 5° C. temperature difference to be established, wherein the second liquid composition includes a green light-emitting material; allowing a viscosity of the second liquid composition to increase by at least 4 centipoise within one second of contacting the workpiece, wherein allowing the viscosity of the second liquid composition to increase is performed after continuously printing; continuously printing a third liquid composition over the workpiece, wherein continuously printing the third liquid composition is performed using the printing apparatus and after allowing the at least 5° C. temperature difference to be established, wherein the third liquid composition includes a blue light-emitting material; and allowing a viscosity of the third liquid composition to increase by at least 4 centipoise within one second of contacting the workpiece, wherein allowing the viscosity of the third liquid composition to increase is performed after continuously printing.