Hewlett-packard Development Company, L.p.

Deanna J Bergstrom

Shen Buswell

Daniel Frech

Rio Rivas

David M Braun

A method of fabricating a mandrel for electroformation of an orifice plate. An array of mask elements may be created adjacent a substrate. Surface regions of the substrate disposed generally between the mask elements may be removed, to create a base having a base surface and a plurality of pillars extending from the base surface according to the array of mask elements. Each pillar may have a perimeter defined by an orthogonal projection of one of the mask elements onto the substrate. An electrical-conduction enhancer may be deposited adjacent the base surface and terminating at least substantially at the perimeter, to create a conductive layer to support growth of the orifice plate.

Mandrel for electroformation of an orifice plate

The described embodiments relate to a slotted substrate for use in a fluid ejecting device. One exemplary embodiment includes a substrate having a thickness between generally opposing first and second surfaces. A slot received in the substrate. The slot has a central region joined with at least one terminal region. The central region extends between the first and second surfaces. The at least one terminal region includes, at least in part, a bowl-shaped portion that has a diameter at the first surface greater than a width of the central region at the first surface.

Slotted substrate and method of making

Mircodevice processing systems. One exemplary embodiment includes a component for removing substrate material to form a feature into a first surface of a substrate, and a component for measuring a thickness of a portion of the substrate defining the feature, wherein the component for measuring is positioned proximate a second surface of the substrate that is different than the first surface.

Microdevice processing systems and methods

Method of fabricating a mandrel for electroformation of an orifice plate

The described embodiments relate to a slotted substrate for use in a fluid ejecting ice. One exemplary embodiment includes a substrate having a thickness between generally opposing first and second surfaces. A slot received in the substrate. The slot has a central region joined with at least one terminal region. The central region extends between the first and second surfaces. The at least one terminal region includes, at least in part, a bowl-shaped portion that has a diameter at the first surface greater than a width of the central region at the first surface.

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Corvallis, OR, United States of America

Deanna J Bergstrom