发明名称 |
THIN FILM VERTICAL RESISTOR DEVICES FOR A THERMAL INK JET PRINTHEAD AND METHODS OF MANUFACTURE |
摘要 |
The specification describes thermal ink jet (TIJ) processes and device structures produced thereby wherein either heater resistors or heater resistor-diode combinations are constructed vertically upward from a common supporting substrate. A lower or first metal level conductor pattern provides one part of an X-Y matrix multiplex connection to the resistor/diode components, and a second, upper metal level conductor pattern forms the second part of the X-Y matrix multiplex connection. In this manner, the multiplex drive circuitry for the TIJ printhead resistors/diodes may be fabricated (integrated) directly on the thin film resistor (TFR) printhead substrate. Additionally, the second level metal conductors which overlie the resistive heater and diode elements also serve as a barrier shield to ink corrosion and cavitation wear. |
申请公布号 |
EP0271257(A3) |
申请公布日期 |
1990.05.16 |
申请号 |
EP19870310431 |
申请日期 |
1987.11.26 |
申请人 |
HEWLETT-PACKARD COMPANY |
发明人 |
HACKLEMAN, DAVID E.;BEARSS, JAMES G.;BHASKAR, ELDURKAR V. |
分类号 |
B41J2/335;B41J2/05;B41J2/16;B41J2/345;H01L49/02;(IPC1-7):B41J3/04 |
主分类号 |
B41J2/335 |
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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