发明名称 |
METHOD FOR FORMING MIMCAP (METAL, INSULATOR, METAL CAPACITOR) AND RESISTOR TO SAME LEVEL |
摘要 |
PROBLEM TO BE SOLVED: To provide a process which reduces the number of treatment processes, eliminates a problem about an integration of the process such as a via landing on a resistor and a capacitor, and improves a performance and a property to be used. SOLUTION: An insulating oxide layer is accumulated, a lower electrode of the capacitor is formed by accumulating a metal layer, and a dielectric of the capacitor is formed by accumulating a dielectric layer on the metal layer. the dielectric and the lower electrode of the capacitor are patterned by a lithography and etched. The upper electrode of the capacitor is formed on the capacitor dielectric by accumulating the metal layer, a thin-film resistor with different structure is formed at one side of the capacitor, and a nitride etching-stopping cap is accumulated on the upper electrode of the capacitor and on the metal layer of the thin-film resistor. The upper electrode of the capacitor and the thin-film resistor are patterned by lithography and etched. An interlayer dielectric layer ILD is accumulated on the upper electrode of the capacitor and on the thin-film resistor. An ILD wiring level is patterned by the lithography and etched. An integrated copper structure is formed by accumulating a liner layer and a copper layer. A final structure of MIMCAP is formed by chemical-mechanical polishing of the integrated copper structure. COPYRIGHT: (C)2004,JPO&NCIPI |
申请公布号 |
JP2004214649(A) |
申请公布日期 |
2004.07.29 |
申请号 |
JP20030421677 |
申请日期 |
2003.12.18 |
申请人 |
INTERNATL BUSINESS MACH CORP <IBM> |
发明人 |
CHINTHAKINDI ANIL K;JENG SHWU-JEN;LOFARO MICHAEL F;SCHNABEL CHRISTOPHER M;STEIN KENNETH J |
分类号 |
H01L21/768;H01L21/02;H01L21/3205;H01L21/822;H01L23/52;H01L23/522;H01L27/04;H01L27/08;(IPC1-7):H01L21/822;H01L21/320 |
主分类号 |
H01L21/768 |
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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