公开(公告)号：US20160129690A1

公开(公告)日：2016-05-12

申请号：US14890551

申请日：2013-06-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning GE ,  Chaw Sing HO ,  Adam L. GHOZEIL ,  Michael W. CUMBIE

IPC: B41J2/145 ,  B41J2/16

CPC classification number: B41J2/145 ,  B41J2/14 ,  B41J2/14016 ,  B41J2/14129 ,  B41J2/1603 ,  B41J2/162 ,  B41J2/1626 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2202/13

Abstract: Examples of fluid ejection apparatuses and methods for making fluid ejection apparatuses are described. An example method may include forming a fluid feed slot in a bulk layer of a substrate, forming a plurality of ink feed channels in at least an epitaxial layer of the substrate, each of the ink feed channels fluidically coupled to the fluid feed slot, and forming a plurality of drop generators over the substrate such that the epitaxial layer of the substrate is between the plurality of drop generators and the bulk layer and such that the each of the drop generators is fluidically coupled to the fluid feed slot by at least one of the ink feed channels.

Abstract translation: 对流体喷射装置和制造流体喷射装置的方法进行说明。 一个示例性方法可以包括在衬底的本体层中形成流体馈送槽，在衬底的至少外延层中形成多个供墨通道，每个供墨通道流体耦合到流体供给槽，以及 在所述衬底上形成多个液滴发生器，使得所述衬底的所述外延层位于所述多个液滴发生器和所述主体层之间，并且使得所述液滴发生器中的每一个通过以下中的至少一个流体耦合到所述流体供给槽 供墨通道。

公开(公告)号：US20180022103A1

公开(公告)日：2018-01-25

申请号：US15546085

申请日：2015-04-10

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning GE ,  Zhiyong LI ,  Ser Chia KOH ,  Chaw Sing HO

IPC: B41J2/175 ,  H01L27/11521

CPC classification number: B41J2/17546 ,  B41J2/14016 ,  B41J2/175 ,  B41J2/1753 ,  B41J2202/17 ,  H01L27/11521 ,  H01L29/4916 ,  H01L29/517

Abstract: In one example in accordance with the present disclosure a printhead with a number of EPROM cells is described. The printhead deposits fluid onto a print medium. The printhead also includes a number of EPROM cells. Each EPROM cell includes a substrate having a source and a drain disposed therein, a floating gate separated from the substrate by a first dielectric layer. The floating gate includes a multi-metal layer that is a metal etched layer. Each EPROM cell also includes a control gate separated from the multi-metal layer of the floating gate by a second dielectric layer.

公开(公告)号：US20160339696A1

公开(公告)日：2016-11-24

申请号：US15114967

申请日：2014-01-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Ning GE ,  Adam L. Ghozeil ,  Chaw Sing HO

IPC: B41J2/14 ,  B41J2/175

CPC classification number: B41J2/1433 ,  B41J2/14153 ,  B41J2/17566 ,  B41J2/195 ,  B41J29/38 ,  B41J2002/14354 ,  B41J2202/13

Abstract: Ink property sensing on a printhead is described. In an example, a substrate for a printhead includes a cap layer having bores. Chambers are formed beneath the cap layer in fluidic communication with the bores. Fluid ejectors are disposed in at least a portion of the chambers. At least one ion-sensitive field effect transistor (ISFET) is disposed in a respective at least one of the chambers. An electrode is disposed in each of the chambers having an ISFET and capacitively coupled to said ISFET through a dielectric.

Abstract translation: 描述了在打印头上的油墨特性感测。 在一个示例中，用于打印头的基板包括具有孔的盖层。 腔室形成在帽层之下，与孔流体连通。 流体喷射器设置在腔室的至少一部分中。 至少一个离子敏感场效应晶体管（ISFET）设置在相应的至少一个室中。 电极设置在具有ISFET的每个室中，并通过电介质电容耦合到所述ISFET。