Fluid ejection device having a layer with a discontinuity
AssigneeHewlett-Packard Development Company, L.P.
InventorsManish Giri, Philip H. Harding, Mark Sanders Taylor, Jeffery S. Hess
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Abstract
In one embodiment, a fluid ejection device comprises a substrate having a first surface, and a fluid slot in the first surface. The device further comprises a fluid ejector formed over the first surface of the substrate, and a chamber layer formed over the first surface of the substrate. The chamber layer defines a chamber about the fluid ejector, wherein fluid flows from the fluid slot towards the to be ejected therefrom. The chamber layer has a discontinuity, wherein the discontinuity is positioned over the fluid slot.
Claims7
A fluid ejection device formed by a method, the method comprising:
- forming a fluid slot through a substrate;
- forming an ejection element upon the substrate along a side of the fluid slot;
- forming a chamber layer over the substrate and the ejection element;
- masking the chamber layer;
- and
- exposing the chamber layer to define a firing chamber that surrounds the ejection element, to define an orifice corresponding to the ejection element, and to define a discontinuity therein over the fluid slot wherein the discontinuity has two longitudinal sides that correspond to a length of longitudinal sides of the fluid slot, wherein at least in some areas along the discontinuity the two longitudinal sides of the discontinuity are in contact with each other.
A fluid ejection device formed by a method, the method comprising:
- forming a slot through a substrate;
- forming an ejection element upon the substrate along a side of the slot;
- forming a chamber layer over the substrate and the ejection element;
- masking the chamber layer;
- and
- exposing the chamber layer to define a firing chamber that surrounds the ejection element, an orifice corresponding to the ejection element, and a discontinuity therein over the slot wherein the discontinuity is located in between longitudinal sides of the slot.
Dependencies are inferred from the claim text.