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US 9,724,920 B2Granted
Molded die slivers with exposed front and back surfaces
AssigneeHewlett-Packard Development Company, L.P.
InventorsChien-Hua Chen, Michael W. Cumbie
Life of this patent
Estimating the term…
Abstract
In an example implementation, a printhead includes a die sliver molded into a molding. The die sliver includes a front surface exposed outside the molding and flush with the molding to dispense fluid, and a back surface exposed outside the molding and flush with the molding to receive fluid. Edges of the die sliver contact the molding to form a joint between the die sliver and the molding.
Claims14
A printhead, comprising:
- a die sliver molded into a molding, the die sliver comprising:
- a front surface exposed outside the molding and flush with the molding to dispense fluid;
- a back surface exposed outside the molding and flush with the molding to receive fluid;
- and,
- edges that contact the molding to form a joint between the die sliver and the molding.
2 more elements
A print bar comprising:
- multiple molded printhead dies arranged generally end to end along a length of a printed circuit board (PCB) in a staggered configuration in which one or more of the dies overlaps an adjacent one or more of the dies;
- each molded printhead die having multiple die slivers embedded in a molding material, the die slivers each having a front surface and a back surface exposed outside of the molding material, the front and back surfaces flush with the molding material, the back surface to receive fluid and the front surface to dispense fluid that flows from the back surface to the front surface through fluid feed holes in the die sliver, and each die sliver comprises edges that contact the molding material to form a joint between the die sliver and the molding material.
A print cartridge comprising:
- a housing to contain a printing fluid;
- and
- a thinned, molded printhead die comprising:
- a die sliver embedded in a molding, the die sliver having edges forming a joint with the molding, and a front surface and back surface exposed outside of the molding, the back surface flush with the molding, the back surface to receive fluid and the front surface to dispense fluid, the fluid to flow from the back surface to the front surface through fluid feed holes in the die sliver.
1 more element
Dependencies are inferred from the claim text.