<p>In an embodiment, a method of forming a printhead includes forming on a front-side surface of a substrate, a thin film layer and a plurality of fluidic channels and ejection chambers. The method also includes forming a slot through the substrate from the back-side surface to the front-side surface, where the back-side and front-side surfaces generally oppose one another. The slot has a length extending along a long axis of the substrate and a width extending along a short axis of the substrate. The method includes forming recessed regions into the back-side surface of the substrate at both ends of the slot that extend beyond the length of the slot.</p>
申请公布号
WO2013137902(A1)
申请公布日期
2013.09.19
申请号
WO2012US29387
申请日期
2012.03.16
申请人
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.;RIO, RIVAS;FRIESEN, ED;MCMAHON, TERRY;SCHULTE, DONALD W.;HALL, DAVID DOUGLAS
发明人
RIO, RIVAS;FRIESEN, ED;MCMAHON, TERRY;SCHULTE, DONALD W.;HALL, DAVID DOUGLAS