Patent ID: 7763310
Filing Date: 2010-07-27
Classification: B05D,B82Y

Abstract:
1. A method for forming a thin film or a thin layer of discrete particles having a thickness less than about 100 micrometers, the method comprising: providing a film forming substance on a carrier fluid contained in an enclosure defining an environmentally controlled chamber, the film forming substance including a solvent and being selected from a group consisting of: a solution, a suspension or an heterogeneous mixture, the carrier fluid having a greater surface tension than that of the solvent contained in the film forming substance; and dynamically controlling the interfacial tensions between the film forming substance, the carrier fluid and a surrounding atmosphere inside the environmentally controlled chamber in accordance with a target film or layer thickness, wherein controlling the interfacial tensions includes acting on the thermodynamical and physicochemical conditions inside the environmentally controlled chamber at the interface between the film forming substance, the carrier fluid and the surrounding atmosphere, and wherein acting on the thermodynamical and physicochemical conditions includes controlling the temperature of the carrier fluid and the concentration of solvent in the surrounding atmosphere within the environmentally controlled chamber.