| 发明名称 |
PRINT FLUID PASSAGEWAY THIN FILM PASSIVATION LAYER |
| 摘要 |
In an example, a printhead includes a die stack having a plurality of dies and a nozzle plate bonded together. A fluid passageway extends throughout the die stack to enable fluid to flow into a bottom die in the die stack, through the die stack, and out through a nozzle in the nozzle plate. The printhead includes a thin film passivation layer that coats all surfaces of the fluid passageway. |
| 申请公布号 |
US2017072692(A1) |
申请公布日期 |
2017.03.16 |
| 申请号 |
US201415122715 |
申请日期 |
2014.03.25 |
| 申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
CHEN Zhizhang;CRUZ-URIBE Tony S |
| 分类号 |
B41J2/14;B41J2/16 |
主分类号 |
B41J2/14 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A printhead comprising:
a die stack having a plurality of dies and a nozzle plate bonded together; a fluid passageway extending throughout the die stack that enables fluid to flow into a bottom die in the die stack, through the die stack, and out through a nozzle in the nozzle plate; and a thin film passivation layer that coats all surfaces of the fluid passageway. |
| 地址 |
Houston TX US |
