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    • 8. 发明公开
    • 박막 형성 방법과, 이를 이용한 커패시터 형성 방법 및트랜지스터 형성 방법
    • 用于形成薄膜的方法和使用其形成电容器和晶体管的方法
    • KR1020040009935A
    • 2004-01-31
    • KR1020020044318
    • 2002-07-26
    • 삼성전자주식회사
    • 박인성정정희여재현
    • H01L21/205
    • H01L21/0228C23C16/405C23C16/45531C23C16/45542C23C16/45553H01L21/02194H01L21/02205H01L21/02274H01L21/02277H01L21/02337H01L21/02348H01L21/31604H01L21/31683H01L28/90
    • PURPOSE: A method for forming a thin film and a method for forming a capacitor and a transistor using the same are provided to improve a dielectric constant and reduce the amount of leakage current by using an atomic layer deposition method. CONSTITUTION: The first reaction material(2) including a tantalum precursor and a titanium precursor is introduced to a substrate(1). The first reaction material(2) is partially absorbed on the upper surface of the substrate(1) by introducing the first reaction material to the substrate. The second reaction material(6) including oxygen is introduced to the substrate. A solid material(8) is formed on the upper surface by absorbing partially the second reaction material(6) on the upper surface of the substrate. The tantalum precursor is formed with one material selected from a group including TaCl5, Ta(OC2H5)5, Ta(OC4H9)5, Ta(OC2H5)(OC3H7)4, and TAT-DMAE. The titanium precursor is formed with one material selected form a group including TiCl4, Ti(OCH3)4, Ti(OC2H5)4, Ti(OC3H7)4, Ti(OC4H9)4, Ti(OC2H5)(OC3H7)4, Ti(OC3H7)2(O2C11H19)2, and Ti(OEt)2(DMAE)2.
    • 目的:提供一种形成薄膜的方法以及使用其形成电容器和晶体管的方法,以通过使用原子层沉积方法来提高介电常数并减少漏电流量。 构成:将包含钽前体和钛前体的第一反应材料(2)引入基材(1)。 第一反应材料(2)通过将第一反应材料引入基底而被部分地吸收在基底(1)的上表面上。 将包含氧的第二反应材料(6)引入基材。 通过在基板的上表面部分地吸收第二反应材料(6),在上表面上形成固体材料(8)。 钽前体由选自TaCl 5,Ta(OC 2 H 5)5,Ta(OC 4 H 9)5,Ta(OC 2 H 5)(OC 3 H 7)4和TAT-DMAE)的一种材料形成。 钛前体由选自TiCl4,Ti(OCH3)4,Ti(OC2H5)4,Ti(OC3H7)4,Ti(OC4H9)4,Ti(OC2H5)(OC3H7)4,Ti( OC 3 H 7)2(O 2 C 11 H 19)2和Ti(OEt)2(DMAE)2。