公开(公告)号：US11667119B2

公开(公告)日：2023-06-06

申请号：US17394698

申请日：2021-08-05

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Tae Ho Kim ,  Eun Joo Jang ,  Tae Hyung Kim ,  Hyo Sook Jang ,  You Jung Chung

IPC分类号： B41J1/16 ,  B41J2/16 ,  B41J2/045 ,  H01L21/56

CPC分类号： B41J2/164 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/1601 ,  H01L21/56 ,  B41J2/1603 ,  B41J2/1604

摘要： An inkjet printhead includes a head body in which a first fine channel that is connected to an ink inlet and thus guides an inflow of ink, a second fine channel that is disposed below the first fine channel, communicated with the first fine channel through a connection via hole, and guides an outflow of the ink by being connected to an ink outlet, and a nozzle that is opened downward from the second fine channel are defined, and a micro heater that is disposed closer to the connection via hole in an upper portion of the first fine channel than to an end of the first fine channel where the first fine channel is connected to the ink inlet or an end of the second fine channel where the second fine channel is connected to the ink outlet.