High reliability 32 nm Cu/ULK BEOL based on PVD CuMn seed, and its extendibilityTakeshi NogamiTibor Bolomet al.2010IEDM 2010
CVD Co and its application to Cu damascene interconnectionsTakeshi NogamiJ. Maniscalcoet al.2010IITC 2010
Material and process for advanced Cu/ULK integrationChih-Chao YangDaniel C. Edelsteinet al.2008ADMETA 2008