(12) United States Patent ao) Patent No.: Us 7,553,002 B2
Baek (45) Date of Patent: Jun. 30,2009
(54) INK-JET PRINTHEAD
(75) Inventor: Oh-hyun Baek, Seoul (KR)
(73) Assignee: Samsung Electronics Co., Ltd.,
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
(21) Appl.No.: 11/603,991
(22) Filed: Nov. 24, 2006
(65) Prior Publication Data
US 2007/0064033 Al Mar. 22, 2007
Related U.S. Application Data
(62) Division of application No. 10/452,943, filedon Jun. 3, 2003, now abandoned.
(30) Foreign Application Priority Data
Oct. 30, 2002 (KR) 2002-66575
(51) Int. CI.
(52) U.S. CI 347/56; 347/67
(58) Field of Classification Search 347/9,
347/56, 67; 257/529, 530 See application file for complete search history.
(56) References Cited
U.S. PATENT DOCUMENTS
5,302,546 A * 4/1994 Gordon etal 438/10
An ink-jet printhead including a substrate, in which an integrated circuit for a driving logic circuit to selectively drive the nozzle, and a logic circuit to input/output printing data to/from a fuse array, are formed. The printhead further includes an electrode which is used for wirings of the integrated circuit and the logic circuit and is patterned on the substrate, a plurality of heaters which are formed on the electrode and generate heat by current applied through the electrode from the integrated circuit, and a fuse array which includes a plurality of fuse members formed on the electrode on a same plane with the heater and selectively fused by current applied through the electrode from the logic circuit and stores printing data. The printhead further includes a cover member which is provided on the heater and the fuse array and in which an ink chamber and a nozzle are formed in a position corresponding to each of the heaters.
11 Claims, 8 Drawing Sheets