The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 26, 2006
Filed:
Mar. 24, 2005
Jae-sik Min, Gyeonggi-do, KR;
Seo-hyun Cho, Gyeonggi-do, KR;
Byung-ha Park, Gyeonggi-do, KR;
Myung-jong Kwon, Seoul, KR;
Kyong-il Kim, Gyeonggi-do, KR;
Yong-shik Park, Gyeonggi-do, KR;
Jae-sik Min, Gyeonggi-do, KR;
Seo-hyun Cho, Gyeonggi-do, KR;
Byung-ha Park, Gyeonggi-do, KR;
Myung-jong Kwon, Seoul, KR;
Kyong-il Kim, Gyeonggi-do, KR;
Yong-shik Park, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
An ink-jet printhead includes a substrate on which an ink chamber is formed, and a nozzle plate to cover the ink chamber, having a nozzle through which ink droplets are ejected from the ink chamber, and formed of a stack of a multi-layer insulating layer. The ink-jet printhead also includes a heater buried in the nozzle plate to surround the nozzle, an interconnection layer buried in the nozzle plate to electrically connect to the heater, and a coating layer formed of photoresist on the nozzle plate and having a through hole-type droplet guide connected to the nozzle of the nozzle plate. The droplet guide is formed through the coating layer, which has a sufficient thickness, and enables a meniscus of ink to be rapidly restored and stabilized, and ink droplets to be ejected at a high speed and high frequency. Also, the ink-jet printhead has improved resistance to abrasion and chemicals.