High-k: Latest developments and perspectives
The paper reviews recent progress and current challenges in implementing high-k dielectrics in microelectronics. Logic devices, non-volatile-memories, DRAMs and low power mixed-signal components are found to be the technologies where high-k dielectrics are implemented or will be introduced soon. Two gate architectures have to be considerd: MOS with metal as gate electrode and MIM. In particular, Hf-silicates for logic and NVM devices in conventional MOS architecture and ZrO2 for DRAM cells in MIM architecture are discussed.