Printhead

摘要

A printhead is disclosed herein. The printhead includes a die substrate having a surface. A trench is defined in the die substrate surface, and a support is positioned in the trench. A compliant membrane is attached to the die substrate surface, and a gap is defined between a distal end of the support and the compliant membrane.

主权项

1. A printhead, comprising:
a die substrate having a surface; a trench defined in the die substrate surface, and having a trench surface; a support positioned in the trench; a compliant membrane attached to the die substrate surface; and a gap defined between a distal end of the support and the compliant membrane; wherein the trench includes:
a depression having a depth measured from the die substrate surface and defined in the trench surface by at least two opposed walls, the two opposed walls respectively terminating in first and second shoulders extending from the depression to the trench surface, the first and second shoulders respectively having a first shoulder depth and a second shoulder depth, each respectively measured from the die substrate surface, wherein the second shoulder depth is less than the first shoulder depth, and the first shoulder depth is less than the depression depth; wherein the support is positioned between the at least two opposed walls, on a portion of the trench surface that defines the depression; and wherein the printhead further includes:
a second support having two ends, one of the two ends being in contact with a portion of the trench surface that defines the first shoulder, and an other of the two ends being in contact with the compliant membrane.