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.