Skin treatment apparatus using fractional plasma

A skin treatment apparatus using fractional plasma comprising:

• a high voltage module and
• a plasma generator to generate plasma and treats a treatment surface on a skin using plasma generated by the plasma generator, wherein the plasma generator comprises:
• a power connector connected to the high voltage module;
• an electrode plate having a concave surface connected to the power connector and a convex surface facing the treatment surface on a skin;
• an upper dielectric having a semicylindrical shape with an open top and configured to accommodate the electrode plate;
• a plurality of independent electrode portions configured to surround a convex part of the upper dielectric and having a concave surface facing the upper dielectric and a convex surface facing the treatment surface on a skin, the electrode portions being mechanically and electrically spaced apart by certain distances and not directly connected to any external power source;
• and
• a lower dielectric having a semicylindrical shape with an open top and configured to accommodate the independent electrode portions,
• wherein power is applied to the electrode plate through the power connector and power from the electrode plate is supplied to the upper dielectric, the independent electrode portions, and the lower dielectric such that plasma is generated in a space between the lower dielectric and the treatment surface on a skin, and
• wherein the treatment surface on a skin acts as a grounded electrode.