US 6,662,435 B1Granted

Method of manufacturing an ink jet print head

AssigneeHewlett-Packard Development Company, L.P.

InventorsRobert C. Maze, Douglas M. Collins, Todd A. Cleland, Leslie A. Field, Storrs T. Hoen, Phillip W. Barth

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Abstract

A method of manufacturing an ink jet print head with a substrate defining an ink aperture. A number of ink energizing elements are located on the major surface of the substrate. A barrier layer is connected to the upper surface, and peripherally encloses an ink manifold. The barrier encompasses the ink aperture. An orifice plate is connected to the barrier layer, spaced apart from the substrate's major surface, enclosing the ink manifold. The plate defines a number of orifices, each associated with a respective ink energizing element. The ink manifold is an elongated chamber having opposed ends defined by end wall portions of the barrier layer. The barrier end wall portions each have an intermediate end wall portion protruding into the manifold.

Claims7

Dependent claims

A method of manufacturing an ink jet printhead comprising the steps of:

defining a longitudinally elongated ink aperture having longitudinally opposed ends oriented along an axis on a substrate having a major surface;
disposing a plurality of ink energizing elements on the major surface of the substrate in two longitudinally elongated rows on opposite laterally opposed sides of the ink aperture;
connecting a barrier layer to the major surface to peripherally define a longitudinally elongated ink manifold encompassing the ink aperture and having longitudinally opposed ends defined by end wall portions of the barrier layer and oriented along the axis whereby the rows of ink energizing elements include end elements at each longitudinal end, and the barrier end wall portions each include a protrusion extending between the end element of one row and the corresponding end element of the other row.

Dependencies are inferred from the claim text.