Patent ID: 8808793

Claim:
A method comprising: introducing a workpiece support into a chamber of an apparatus, said workpiece support for supporting thereon a plurality of workpieces, wherein said apparatus comprises: said chamber having an interior space configured to be maintained at a pressure below atmospheric pressure; a vapor source for supplying said interior space of said chamber with a linearly elongated stream of lubricant vapor, said vapor source comprising a reservoir having a plurality of recesses, with each of the plurality of recesses configured to have a different diameter and a different depth thereby containing a different volume, and wherein said plurality of recesses function to at least minimize variability of a molecular weight distribution of said lubricant vapor; said workpiece support for supporting thereon a plurality of workpieces with surfaces facing said vapor source; and a conveyor for continuously moving said workpiece support transversely past said linearly elongated extending stream of lubricant vapor from said vapor source; continuously moving said workpiece support with said plurality of workpieces supported thereon transversely past said linearly elongated extending stream of lubricant vapor from said vapor source and depositing a uniform thickness film of said lubricant on at least one surface of each of said plurality of workpieces.