Barrier Metal DPT Material Electrode Material Etch Hard Mask film GST Material Gap Fill Material High-k for Capacitor High-k for Metal Gate Low-k Metallization Metal SiO2 / SiN 소자의 미세화에 따라, Insulator의 박막화에 따른 Tunneling 현상으로 Gate 누설전류가 급격히 증가하여, 더 이상 소자를 축소할 수 없게 되자 45nm 이하부터 에서 Insulator를 High-k 물질로 사용하기 시작했습니다. 이 때부터 사용한 High-k 물질은 Hf 계열의 Source로 업체마다 조금씩 다르며, 적용 공정 또한 조금씩 다릅니다. 현재는 Hf Source를 대체할 물질(Al, Zr, Ta, STO, BST 등)을 찾거나, Hf Source에 다른 물질을 추가하여 증착시키는 방법 등 여러가지 방향으로 연구되고 있습니다. Insulator를 Metal 계열의 High-k로 바꾸면서 Gate 물질 또한 변화가 요구되어 기존의 Poly-silicon에서 Metal Gate로 변경하였습니다. PRODUCT (HMDS)Hf(Py)3 (Hexamethyldisilazane)Tris(pyrrolidine)Hafnium 자세히보기 A2HP7 Tris(dimethylamido)Zirconium cyclopentadienide 자세히보기 HTTB Hafnium(IV) tert-butoxide 자세히보기 TBTDETa (t-butylimido)tris(diethylamido)Tantalum 자세히보기 TEMAHf Tetrakis(ethylmethylamido)Hafnium 자세히보기 TEMAZr Tetrakis(ethylmethylamido)Zirconium 자세히보기 (HMDS)Hf(Py)3 Chemical name, Chemical formula, formula weight (g/mol), Boiling point (℃), Vapor pressure (℃/torr), Phase, Water reactivity Chemical name. (Hexamethyldisilazane)Tris(pyrrolidine)Hafnium Chemical formula C18H42N4Si2Hf formula weight (g/mol) 549.21 Boiling point (℃) 142 / 0.8 Vapor pressure (℃/torr) 91 / 0.1 Phase Yellow liquid Water reactivity Slowly react 닫기 A2HP7 Chemical name, Chemical formula, formula weight (g/mol), Boiling point (℃), Vapor pressure (℃/torr), Phase, Water reactivity Chemical name. Tris(dimethylamido)Zirconium cyclopentadienide Chemical formula C11H23N3Zr formula weight (g/mol) 288.5 Boiling point (℃) 264 Vapor pressure (℃/torr) 90 / 0.3 Phase Pale yellow liquid Water reactivity Slowly react 닫기 HTTB Chemical name, Chemical formula, formula weight (g/mol), Boiling point (℃), Vapor pressure (℃/torr), Phase, Water reactivity Chemical name. Hafnium(IV) tert-butoxide Chemical formula C16H36O4Hf formula weight (g/mol) 470.94 Boiling point (℃) 90 / 5.0 Vapor pressure (℃/torr) 67 / 1.5 Phase Colorless liquid Water reactivity Slowly react 닫기 TBTDETa Chemical name, Chemical formula, formula weight (g/mol), Boiling point (℃), Vapor pressure (℃/torr), Phase, Water reactivity Chemical name. (t-butylimido)tris(diethylamido)Tantalum Chemical formula C16H39N4Ta formula weight (g/mol) 468.46 Boiling point (℃) 95 / 0.5 Vapor pressure (℃/torr) 120 / 1.0 Phase Pale yellow liquid Water reactivity Violently react 닫기 TEMAHf Chemical name, Chemical formula, formula weight (g/mol), Boiling point (℃), Vapor pressure (℃/torr), Phase, Water reactivity Chemical name. Tetrakis(ethylmethylamido)Hafnium Chemical formula C12H32N4Hf formula weight (g/mol) 411.89 Boiling point (℃) 79 / 0.1 Vapor pressure (℃/torr) 90 / 1.0 Phase Pale yellow liquid Water reactivity Violently react 닫기 TEMAZr Chemical name, Chemical formula, formula weight (g/mol), Boiling point (℃), Vapor pressure (℃/torr), Phase, Water reactivity Chemical name. Tetrakis(ethylmethylamido)Zirconium Chemical formula C12H32N4Zr formula weight (g/mol) 323.62 Boiling point (℃) 81 / 0.1 Vapor pressure (℃/torr) 100 / 1.79 Phase Pale yellow liquid Water reactivity Violently react 닫기