Patent ID: 8828498

Claim:
A method of coating a surface with a water and oil repellant polymer layer, the method comprising: providing a plurality of objects each having a surface; providing a first electrode and a second electrode within a plasma chamber, the first electrode being an internal metal wall of the plasma chamber; providing an object holder between the first electrode and second electrode, the object holder having an open box structure, wherein the plurality of objects are positioned inside the box structure and the second electrode is fixed inside the object holder; rotating the object holder about an axis, thereby tumbling the plurality of objects freely within the object holder; exposing said surface of each of the plurality of objects to a monomer compound, exposing said surface of each of the plurality of objects to a continuous plasma at an initial plasma power level provided by a plasma circuit; and reducing the plasma power level from the initial plasma power level to a final plasma power level, said final plasma power level being less than 35% of said initial plasma power level.