公开(公告)号：US06305790B1

公开(公告)日：2001-10-23

申请号：US09384849

申请日：1999-08-27

Applicant: Naoto A. Kawamura ,  Colin C. Davis ,  Timothy L. Weber ,  Kenneth E. Trueba ,  John Paul Harmon ,  David R. Thomas

Inventor： Naoto A. Kawamura ,  Colin C. Davis ,  Timothy L. Weber ,  Kenneth E. Trueba ,  John Paul Harmon ,  David R. Thomas

IPC: B41J205

CPC classification number: B41J2/14072 ,  B41J2/1404 ,  B41J2/1408 ,  B41J2/14129 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2/1635 ,  B41J2/1645 ,  B41J2002/14387 ,  B41J2202/03

Abstract: Described herein is a monolithic printhead formed using integrated circuit techniques. Thin film layers, including ink ejection elements, are formed on a top surface of a silicon substrate. The various layers are etched to provide conductive leads to the ink ejection elements. At least one ink feed hole is formed through the thin film layers for each ink ejection chamber. In one embodiment, there are more ink feed holes than ink ejection chambers, so that more than one ink feed hole provides ink to each ink ejection chamber. A trench is etched in the bottom surface of the substrate so that ink can flow into the trench and into each ink ejection chamber through the ink feed holes formed in the thin film layers. An orifice layer is formed on the top surface of the thin film layers to define the nozzles and ink ejection chambers.

Abstract translation: 这里描述的是使用集成电路技术形成的单片打印头。 在硅衬底的顶表面上形成包括喷墨元件的薄膜层。 蚀刻各层以向墨喷射元件提供导电引线。 通过每个喷墨室的薄膜层形成至少一个供墨孔。 在一个实施例中，存在比墨喷射室更多的墨供给孔，使得多于一个的墨供给孔向每个墨喷射室提供墨。 在衬底的底表面中蚀刻沟槽，使得油墨可以通过形成在薄膜层中的供墨孔流入沟槽并进入每个喷墨室。 在薄膜层的顶表面上形成孔层以限定喷嘴和喷墨室。

公开(公告)号：US6162589A

公开(公告)日：2000-12-19

申请号：US33987

申请日：1998-03-02

Applicant: Chien-Hau Chen ,  Donald E. Wenzel ,  Qin Liu ,  Naoto Kawamura ,  Richard W. Seaver ,  Carl Wu ,  Colby Van Vooren ,  Jeffery S. Hess ,  Colin C. Davis

Inventor： Chien-Hau Chen ,  Donald E. Wenzel ,  Qin Liu ,  Naoto Kawamura ,  Richard W. Seaver ,  Carl Wu ,  Colby Van Vooren ,  Jeffery S. Hess ,  Colin C. Davis

IPC: B41J2/05 ,  B41J2/135 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1639 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/1408 ,  B41J2/14129 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/164 ,  B41J2/1645 ,  B41J2002/14387 ,  B41J2002/14475

Abstract: A process for creating and an apparatus employing shaped orifices in a semiconductor substrate. A first layer of material is applied on the semiconductor substrate then a second layer of material is then applied upon the first layer of material. An orifice image is then transferred to the first layer of material and a fluid-well image is transferred to the second layer of material. That portion of the second layer of material where the orifice image is located is then developed along with that portion of the first layer of material where the fluid well is located to define an orifice in the substrate.

公开(公告)号：US6099108A

公开(公告)日：2000-08-08

申请号：US812385

申请日：1997-03-05

Applicant: Timothy L. Weber ,  John Paul Harmon ,  S. Dana Seccombe ,  Colin C. Davis ,  Paul J. McClellan ,  David J. Waller

Inventor： Timothy L. Weber ,  John Paul Harmon ,  S. Dana Seccombe ,  Colin C. Davis ,  Paul J. McClellan ,  David J. Waller

IPC: B41J2/14 ,  B41J2/21 ,  B41J2/145 ,  B41J2/15

CPC classification number: B41J2/2121 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2002/14387 ,  B41J2002/14475

Abstract: A method and apparatus for improving ink-jet print quality uses a print head having an array using a plurality of nozzles in sets in each drop generator mechanism. Where a conventional ink-jet pen fires a single droplet of ink at a pixel per firing cycle, the present invention fires a plurality of droplets at different subdivisions of pixels. The particular array design may vary from ink-to-ink or pen-to-pen. Each drop generator of a print head array includes a plurality of nozzles wherein each of the nozzles has an exit orifice with an areal dimension, and produces an ink droplet that produces a dot on adjacent print media wherein the dot has an areal dimension, less than the areal dimension of a pixel to be printed. Dots are printed in a pattern for each pixel wherein print quality is achieved that approximates a higher resolution print made by conventional ink-jet methodologies.