Abstract
The electromigration (EM) characteristics of chemical vapor deposited (CVD)-Cu films were compared to those of physical vapor deposited (PVD)-Cu films. The CVD-Cu lines showed shorter lifetime than PVD-Cu. The activation energy of EM was 0.754 eV for the CVD-Cu on SiO2, showing the grain boundary diffusion as the EM failure mechanism. The higher the resistivity induced, the higher driving force of EM. The PVD-Cu films had a huge domain structure, which act as a larger grain than CVD-Cu grain that result in the longer life-time and the surface diffusion mechanism with the activation energy of 0.244 eV.
Original language | English |
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Pages (from-to) | 281-286 |
Number of pages | 6 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 516 |
DOIs | |
Publication status | Published - 1998 |
Event | Proceedings of the 1998 MRS Spring Meeting - San Francisco, CA, USA Duration: 1998 Apr 13 → 1998 Apr 16 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering