Patent ID: 8852693

Claim:
A method of coating a surface of an electronic device, comprising: exposing the surface of the electronic device to a plasma comprising a compound with the following chemical formula: CH 2 ═C(R 1 )—COO—R 2 where R 1 includes —H or CH 3 , R 2 includes —(CH 2 ) 2 —(CF 2 ) m —CF 3 , and m is 3 or 5, so as to form a polymeric coating on the surface, the polymeric coating having an oleophobicity level of at least 5, and placing the electronic device in one of a plurality of trays in a plasma chamber wherein each tray is proximate to a proximate electrode wherein each electrode is connected to a power source, and generates plasma to encompass the contents of each tray, introducing the compound into the plasma chamber through a control mechanism, wherein the polymeric coating has a low toxicity level with perfluorooctane sulfonate (PFOS) level of less than 0.1 parts per billion (ppb) and a perfluorooctanoic acid (PFOA) level of less than 0.2 parts per billion (ppb) and wherein the plasma is formed at a continuous power setting.