Enjet Co. Ltd.

Byungjik Lim

Do Young Byun

Vu Dat Nguyen

Baek Hoon Seong

Chihyun Park

Hyungdong Lee

Hyunwoong Yoo

Jaewoo Joung

Jaeyong Choi

Mohiuddin Khalil Shaheer

Disclosed are an inkjet printhead and a method of manufacturing the same, the inkjet printhead including: a first layer including an inlet formed to penetrate a substrate and introduce ink therein, and a plurality of membranes; a second layer disposed beneath the first layer, and including a manifold formed to penetrate a substrate and communicate with the inlet or recessed on a top of the substrate, and a plurality of nozzle channels formed to penetrate the substrate below the membrane and allow the ink transferred from the manifold to flow therein; a third layer disposed beneath the second layer, and including a plurality of nozzles formed in a substrate and communicating the plurality of nozzle channels; a piezoelectric actuator formed on the first layer formed with the membrane, and including a lower first electrode, a piezoelectric body on the first electrode, and a second electrode on the piezoelectric body; a first voltage controller configured to oscillate the membrane by applying a pulse voltage to the first electrode and the second electrode; a third electrode disposed beneath the third layer, formed around each nozzle, and surrounded with an insulator; and a second voltage controller configured to discharge droplets of the ink based on induced electric force by applying voltage to the third electrode.

Inkjet printhead and method of manufacturing the same

Growing community of inventors

Suwon-si, South Korea

Byungjik Lim