发明名称 |
Fluid ejection device and method of fabricating |
摘要 |
An inkjet printhead and a method of fabricating an inkjet printhead is disclosed. The inkjet printhead includes a conducting material layer deposited on an insulative dielectric. The conducting material layer has a chamber formed between a first and a second section of the conducting material layer. A dielectric material is fabricated on the first and second sections of the conducting material layer and on the insulative dielectric in the chamber. The dielectric material has a planarized top surface. A first via is formed in the dielectric material, thereby exposing a portion of the first section of the conducting material layer. A second via is formed in the dielectric material, thereby exposing a portion of the second section of the conducting material layer. The first and second vias each having sidewalls sloped at an angle in the range of approximately 10-60 degrees. A resistive material layer is formed in the first and second vias and on the planarization dielectric between the first and second vias through a single photoresist mask and a single etch process. A passivation material layer is formed onto the planarization dielectric material and onto the resistive material layer.
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申请公布号 |
US6481831(B1) |
申请公布日期 |
2002.11.19 |
申请号 |
US20000611810 |
申请日期 |
2000.07.07 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
DAVIS COLIN C.;NIKKEL ERIC L.;TRUNINGER MARTHA A.;ENCK RONALD L. |
分类号 |
B41J2/05;B41J2/14;B41J2/16;(IPC1-7):B41J2/05 |
主分类号 |
B41J2/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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