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:
May. 19, 2009
Filed:
Sep. 29, 2005
Sung-joon Park, Suwon, KR;
Seo-hyun Cho, Sungnam, KR;
Sang-chul Koh, Suwon, KR;
Jae-sik Min, Suwon, KR;
Tae-kyun Kim, Suwon, KR;
Myung-song Jung, Gunpo, KR;
Sung-joon Park, Suwon, KR;
Seo-hyun Cho, Sungnam, KR;
Sang-chul Koh, Suwon, KR;
Jae-sik Min, Suwon, KR;
Tae-kyun Kim, Suwon, KR;
Myung-song Jung, Gunpo, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A head of an inkjet printer is formed by bonding of a heater substrate and a nozzle plate. In order to bond the heater substrate where a heater thin film and a protecting film are vapor-deposited, and the nozzle plate where a nozzle is formed, an intermediate layer is formed by forming a thin film of glass on the heater substrate by vapor-depositing, and the nozzle plate is installed on the heater substrate. SiOis formed at an interface between the nozzle plate and the heater thin film due to heating and application of an electric field, and thus the nozzle plate and the heater substrate are bonded with an electrostatic force of SiO. The nozzle plate and the heater substrate are bonded by using the intermediate layer made of the thin film of glass instead of a general polymer as the bonding layer, thereby preventing swelling of the polymer and isolation of layers of the head occurring due to ink penetration into interfaces of the layers. Moreover, a bonding process is performed in wafer units to improve mass productivity.