公开(公告)号：US10479094B2

公开(公告)日：2019-11-19

申请号：US15765255

申请日：2016-01-20

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Zhizhang Chen ,  Mohammed Shaarawi ,  Brian Bolf ,  Paul Krause

IPC: B41J2/16 ,  B41J2/175 ,  B41J2/14 ,  B41J2/335

Abstract: Energy efficient printheads are disclosed. An example printhead includes a substrate with channels to direct ink toward a plurality of nozzles of the printhead. The example printhead further includes a passivation layer on the substrate. The passivation layer includes a first thin film of a first dielectric material formed using atomic layer deposition.

公开(公告)号：US20180281425A1

公开(公告)日：2018-10-04

申请号：US15765255

申请日：2016-01-20

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Zhizhang Chen ,  Mohammed Shaarawi ,  Brian Bolf ,  Paul Krause

IPC: B41J2/175 ,  B41J2/14 ,  B41J2/16 ,  B41J2/335

Abstract: Energy efficient printheads are disclosed. An example printhead includes a substrate with channels to direct ink toward a plurality of nozzles of the printhead. The example printhead further includes a passivation layer on the substrate. The passivation layer includes a first thin film of a first dielectric material formed using atomic layer deposition.