Patent ID: 7744957

Claim:
A method of depositing a patterned layer of an organic material on a surface of a substrate, comprising: mixing vapor of an organic material for deposition with a carrier gas; introducing the carrier gas carrying the organic material for deposition into a nozzle; ejecting the carrier gas carrying the organic material from the nozzle at a flow velocity that is at least 10 % of the thermal velocity of the carrier gas, such that the organic material introduced with the carrier gas into the nozzle is deposited onto a substrate, separated from the nozzle, forming the layer of the organic material on the surface of the substrate, the layer comprising a plurality of separate films; and based upon the molecular mass of the carrier gas, the molecular mass of the organic material, the mean free path of the ejected material, or a combination thereof, selecting a separation s between the nozzle and the substrate and a downstream pressure P L sufficient to create a dynamic pressure surrounding the carrier gas in a region between the nozzle and the substrate of at least 1 Torr.