Hewlett-packard Development Company, L.P.

Hewlett-packard Company

Hewlett-packard Corporation

Mark C Huth

Mehrgan Khavari

Craig M Gates

Alexey S Kabalnov

Joseph R Elliot

Jong-Souk Yeo

Sean P McClelland

John M Altendorf

Rio Rivas

Patrick V Boyd

Jeffrey R Pollard

Siddhartha Bhowmik

Charles Otis

Philip G Rourke

Rocky H Knuth

The described embodiments relate to slotted substrates. One exemplary method forms a feature into a substrate, at least in part, by directing a laser beam at the substrate. During at least a portion of said directing, the method supplies a conductive material proximate the substrate.

Methods and systems for laser processing

A method of laser machining a substrate is provided. The method comprises directing laser energy at a first surface of the substrate, while providing an assist medium at the first surface of the substrate at least at approximately the area at which the laser energy is being directed. The assist medium is no longer provided prior to completion of formation of a feature in the substrate created utilizing the laser energy.

Laser micromachining methods and systems

The described embodiments relate to laser micromachining a substrate. One exemplary method includes forming a feature into a substrate, at least in part, by directing a laser beam at the substrate. During at least a portion of said forming, the method includes supplying liquid to at least a first region of the feature along a first liquid supply path and supplying liquid to at least a second different region of the feature along at least a second liquid supply path.

Laser micromachining and methods of same

The described embodiments relate to substrates having features formed therein and methods of forming same. One exemplary method forms a blind feature through a majority of a thickness of a substrate, the blind feature being defined by at least one sidewall surface and a bottom surface. The method also applies an etch resistant material to the blind feature and removes the etch resistant material from at least a portion of the bottom surface. The method further wet etches the substrate at least through the bottom surface sufficient to form a through feature through the thickness of the substrate.

Substrates having features formed therein and methods of forming

Disclosed is a novel multi-chamber ink-jet print cartridge (pen) that is formed of a main body member divided into three sections, a center section, and two side sections. Cover members are attached to this main body section to define three ink chambers. Each ink chamber contains a synthetic foam member that receives a respective one of three primary colored inks. The main body member is molded to be a single unitary part, so that the only ink-to-ink sealing interface between inks of different colors occurs at the interface between the main body member and the printhead. The main body member is formed to have a center ink pipe that extends upwardly into compressive contact with the foam member in the center chamber, and two side ink pipes that extend outwardly in a direction orthogonal to the center ink pipe into compressive contact with the foam held in the side ink chambers. The disclosed multi-chamber pen thus allows for a narrow pen body with a small printhead, yet also provides for a large volume of ink in each of the three ink chambers, without the need for a separate manifold member and the disadvantageous introduction of additional ink-to-ink interfaces.

Ink-jet pen with one-piece pen body

Disclosed is a novel inkjet print cartridge (pen) in which a body of polyurethane foam is inserted into an ink chamber of the pen for ink containment and backpressure. The ink chamber has a tall narrow aspect ratio. The body of polyurethane foam is felted in the width direction of the pen to have a width less than 20% of its pre-felted width. After felting, the body of foam is cut to have a 'near net size' as the interior volume of the ink chamber. Specifically, the pre-insertion volume is less than about 130% of the interior volume of the ink chamber. The substantial felting in the width direction provides sufficient stiffness to the foam that it can be inserted into the tall, narrow aspect ratio ink chamber.

Ink-jet pen with near net size porous member

An ink cartridge having an improved ink-retaining capacity. The cartridge (preferably of the thermal inkjet type) includes a housing having a multi-cellular foam member therein. To increase the ink-retaining capacity of the foam member, one or more elongate bores are positioned entirely through the foam member. Each bore is preferably uniform in cross-sectional size and configuration along its entire length, and may encompass numerous cross-sectional configurations (e.g. circular or rectangular). The longitudinal axis of each bore is preferably perpendicular to the longitudinal axis of the foam member. When the foam member is supplied with ink, an additional portion of ink is retained within each bore. As a result, the ink-retaining capacity of the foam member is increased compared with foam members which lack any bores. The bores function as internal ink reservoirs from which ink may be drawn during cartridge operation.

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Corvallis, OR, United States of America

Mark C Huth