| 摘要 |
A method of making a metal capacitor includes the following steps. A dielectric layer having a dual damascene metal interconnection and a damascene capacitor electrode is provided. Then, a treatment is performed to increase the dielectric constant of the dielectric layer surrounding the damascene capacitor electrode. The treatment can be UV radiation, a plasma treatment or an ion implantation. Accordingly, the metal capacitor will have a higher capacitance and RC delay between the dual damascene metal interconnection and the dielectric layer can be prevented. |
