Fluid ejection devices

摘要

Disclosed is a fluid ejection device for an inkjet printer that includes a substrate. The substrate includes at least one trench and a plurality of fluid flow vias configured in at least three parallel rows arranged over each trench of the at least one trench. Each row of the at least three parallel rows includes a set of fluid flow vias from the plurality of fluid flow vias arranged in one of a uniform manner and a non-uniform manner such that each fluid flow via of the set of fluid flow vias is configured in a spaced-apart relation with an adjacent fluid flow via. The each fluid flow via is configured in a diagonal relationship relative to a neighboring fluid flow via of an adjacent row of the at least three parallel rows. The fluid ejection device also includes a flow feature layer and a nozzle plate.

主权项

1. A fluid ejection device for an inkjet printer, the fluid ejection device comprising:
a substrate comprising,
at least one trench configured for flowing a common color of fluid therewithin, anda plurality of fluid flow vias configured in at least three parallel rows arranged over the at least one trench to flow the common color of fluid above the at least one trench, each row of the at least three parallel rows comprising a set of fluid flow vias from the plurality of fluid flow vias arranged in one of a uniform manner and a non-uniform manner such that each fluid flow via of the set of fluid flow vias is configured in a spaced-apart relation with an adjacent fluid flow via of the set of fluid flow vias, the each fluid flow via of the set of fluid flow vias of the each row further configured in a diagonal relationship relative to a neighboring fluid flow via of all adjacent rows of the at least three parallel rows; a flow feature layer configured over the substrate, the flow feature layer comprising a plurality of flow features, each flow feature of the plurality of flow features configured in fluid communication with a corresponding fluid flow via of the plurality of fluid flow vias; and a nozzle plate configured over the flow feature layer so that the plurality of fluid flow vias is disposed between the at least one trench and the nozzle plate, the nozzle plate comprising a plurality of nozzles, each nozzle of the plurality of nozzles configured in fluid communication with a corresponding flow feature of the plurality of flow features to eject fluid drops of the common color of fluid.