Patent ID: 7252859

Claim:
A method of using a compacted pellet having uniform blended mixture with at least first and second different organic components that sublime at temperatures T 1 and T 2 respectively, wherein T 1 represents the temperature of the first organic material with the lowest sublimation temperature and T 2 represents the temperature of the second organic material with the highest sublimation temperature, to form an organic layer having a uniform blended mixture of the organic components, comprising: (a) providing a compacted pellet, having a top and bottom surface, into a boat having an open top surface wherein the compacted pellet conforms to the interior of the boat; and (b) applying heat to the top of the compacted pellet to cause the deposition of a uniform blended mixture of the organic components to form an organic layer, wherein the top surface of the compacted pellet reaches T 2 before the bottom surface reaches T 1 .