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US 2017/0320320 A1Published application
Printhead
AssigneeHewlett-Packard Development Company, L.P.
InventorsEric T Martin, Chris Bakker, James R Przybyla
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Abstract
Printheads and techniques for manufacturing printheads are disclosed. An example method includes forming drive circuit components in a circuit layer. The method also includes forming a fluidic device that causes fluid to be ejected from a nozzle. The method also includes forming an interconnect layer that couples the drive circuit components.
Claims15
A method of manufacturing a printhead, comprising:
- forming drive circuit components, wherein a layout of the drive circuit components is a standardized layout that is not dependent on a nozzle density of the printhead;
- forming fluidic devices over the drive circuit components, the fluidic devices comprising fluid chambers with fluid ejection nozzles;
- forming an interconnect layer over the drive circuit components, wherein the interconnect layer configures the drive circuit components, and wherein a layout of the interconnect layer is selected based, at least in part, on the nozzle density of the printhead.
A printhead, comprising:
- a fluidic device coupled to an energy delivery device to cause fluid to be ejected from a nozzle;
- a circuit layer comprising drive circuit components, the drive circuit components comprising:
- first and second activation devices to activate the energy delivery device;
- first drive logic coupled to the first activation device;
- and
- second drive logic coupled to the second activation device;
- and
- an interconnect layer to electrically couple the drive circuit components, the interconnect layer to couple a same address selection signal to the first drive logic and the second drive logic.
5 more elements
A printhead, comprising:
- a fluidic device coupled to an energy delivery device to cause fluid to be ejected from a nozzle;
- a circuit layer comprising drive circuit components, the drive circuit components comprising:
- first and second activation devices to activate the energy delivery device;
- and
- drive logic coupled to the first and second activation devices;
- and
- an interconnect layer to electrically couple the circuit components, the interconnect layer to couple a same drive circuit component to the first and second activation devices.
4 more elements
Dependencies are inferred from the claim text.