公开(公告)号：US20150001316A1

公开(公告)日：2015-01-01

申请号：US14374160

申请日：2012-03-16

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

Inventor： Rio Rivas ,  Ed Friesen ,  Terry McMahon ,  Donald W. Schulte ,  David Douglas Hall

IPC: B05B15/06

CPC classification number: B05B15/60 ,  B41J2/14145 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2/1642 ,  Y10T29/49401

Abstract: 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.

Abstract translation: 在一个实施例中，形成打印头的方法包括在基板的前侧表面上形成薄膜层和多个流体通道和喷射室。 该方法还包括从后侧表面到前侧表面通过基板形成槽，其中后侧表面和前侧表面通常彼此相对。 槽具有沿衬底的长轴延伸的长度和沿衬底的短轴延伸的宽度。 该方法包括在槽的两端延伸超过槽的长度的方式，在基板的背侧表面中形成凹陷区域。