首页>
外国专利>
METHOD FOR INTEGRATING METALS HAVING DIFFERENT WORK FUNCTIONS TO FORM CMOS GATES HAVING A HIGH-K GATE DIELECTRIC AND RELATED STRUCTURE
METHOD FOR INTEGRATING METALS HAVING DIFFERENT WORK FUNCTIONS TO FORM CMOS GATES HAVING A HIGH-K GATE DIELECTRIC AND RELATED STRUCTURE
展开▼
机译:集成具有不同工作功能的金属以形成具有高k门介电和相关结构的CMOS门的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
According to one exemplary embodiment, a method for integrating first (206) and second metal layers (208) on a substrate (202) to form a dual metal NMOS gate (226) and PMOS gate (228) comprises depositing (150) a dielectric layer (204) over an NMOS region (210) and a PMOS region (212) of the substrate (202). The method further comprises depositing (150) the first metal layer (206) over dielectric layer (204). The method further comprises depositing (150) the second metal layer (208) over the first metal layer (206). The method further comprises implanting (152) nitrogen in the NMOS region (210) of substrate (202) and converting (154) a first portion of the first metal layer (206) into a metal oxide layer (220) and converting a second portion of the first metal layer (206) into metal nitride layer (218). The method further comprises forming (156) the NMOS gate (226) and the PMOS gate (228), where the NMOS gate (226) comprises a segment (234) of metal nitride layer (218) and the PMOS gate (228) comprises a segment (242) of the metal oxide layer (220).
展开▼