Patent ID: 7887635

Claim:
A printing head for nano patterning including: a cartridge which has an injection chamber having an opening at a lower side of the cartridge; a manifold for accommodating a liquid printing material, the manifold being formed at an inner space of the cartridge to communicate with the injection chamber through a hole; a sample holder for patterning installed outside the injection chamber of the cartridge; a shadow mask which is installed outside the injection chamber to be finely moved in an X-Y direction and has a single injection hole, the shadow mask covering the opening of the injection chamber and slidably mounted on the cartridge; an actuator for finely moving the shadow mask, the actuator being mounted at the cartridge and connected to the shadow mask; an injection-inducing unit for generating induced discharge from the injection chamber toward the sample holder; and a control unit for controlling the driving of the actuator so that the injection hole of the shadow mask can be moved to patterning positions corresponding to patterning data input in advance, wherein the injection-inducing unit comprises: a high voltage generator; a power supply electrode that is installed within the injection chamber and receives power from the high voltage generator to generate positive charges; an opposite electrode for generating negative charges on the sample holder in a state where the shadow mask is interposed between the power supply electrode and the opposite electrode; a capillary which is mounted on the hole so as to cause the injection chamber to communicate with the manifold and has the power supply electrode installed therein, and a gas-supplying unit including a gas supplier for supplying a reactant gas into the capillary and a gas-supplying hose for connecting the gas supplier to the capillary, thereby generating discharge plasma from the power supply electrode toward the opposite electrode through the capillary.