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    • 68. 发明授权
    • 반도체 커패시터 및 그 제조 방법
    • 반도체커패시터및그제조방법
    • KR100634241B1
    • 2006-10-13
    • KR1020050045383
    • 2005-05-30
    • 삼성전자주식회사
    • 김경석형용우박재영이현덕임기빈이욱열이고은김영진남석우
    • H01L27/108
    • A semiconductor capacitor and its manufacturing method are provided to decrease equivalent oxide thickness and to improve leakage current characteristics by forming a SIM(Semiconductor-Insulator-Metal) structure. A lower electrode(12) is formed on a semiconductor substrate(10). A dielectric(14) is formed on the lower electrode. An upper electrode(16) is formed on the dielectric and has a multi layered structure of a poly crystalline four group semiconductor material. The four group semiconductor material includes silicon, germanium, and mixture thereof. The multi layered structure of the four group semiconductor material includes lower silicon and upper silicon-germanium mixture, lower germanium and upper silicon-germanium mixture, lower silicon-germanium mixture and upper silicon, or lower silicon-germanium mixture and upper germanium.
    • 提供半导体电容器及其制造方法以通过形成SIM(半导体 - 绝缘体 - 金属)结构来减少等效氧化物厚度并改善漏电流特性。 下电极(12)形成在半导体衬底(10)上。 电介质(14)形成在下电极上。 上电极(16)形成在电介质上并且具有多晶四族半导体材料的多层结构。 四组半导体材料包括硅,锗及其混合物。 四个组的半导体材料的多层结构包括下硅和上部硅 - 锗混合物,低级锗和上部硅 - 锗混合物,低级硅 - 锗混合物和上方的硅,或更低的硅锗混合物和上部锗。