Chip layout to enable multiple heater chip vertical resolutions

摘要

An inkjet printer including a printhead with a fluid ejection chip and an associated method of forming is described. The fluid ejection chip includes a substrate, a plurality of groups of drive elements formed on the substrate, and a plurality of fluid ejection devices disposed on the substrate. Each group of drive elements includes at least two drive elements electrically coupled in parallel. Each fluid ejection device of the plurality of fluid ejection devices is electrically coupled with a respective group of the plurality of groups of drive elements so that the plurality of drive elements selectively activate the plurality of fluid ejection devices for causing fluid to be expelled from the printhead in accordance with image data.

主权项

1. A method of fabricating a fluid ejection chip, comprising:
providing a substrate; forming a plurality of drive elements on the substrate; forming a plurality of groups of drive elements, each group comprising at least two drive elements of the plurality of drive elements electrically coupled in parallel; forming a plurality of fluid ejection devices on the substrate; and electrically coupling each fluid ejection device of the plurality of fluid ejection devices with a single respective group of the plurality of groups of drive elements so that the plurality of drive elements selectively supply electrical power to the plurality of fluid ejection devices for causing fluid to be expelled from the fluid ejection chip in accordance with image data.