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    • 10. 发明公开
    • 반도체 소자의 게이트 스페이서 형성방법
    • 半导体器件的栅极间隔的形成方法
    • KR1020110065813A
    • 2011-06-16
    • KR1020090122484
    • 2009-12-10
    • 주식회사 디비하이텍
    • 신민정
    • H01L21/336H01L29/78
    • H01L29/7833H01L21/02263H01L21/02642H01L29/66553
    • PURPOSE: A method for forming the gate spacer of a semiconductor device is provided to suppress the occurrence of a charge gain phenomenon by preventing a spacer from being formed in a spacer sub-layer. CONSTITUTION: A lightly doped drain(LDD) region(200) is formed on a semiconductor substrate(110) on which a gate poly is formed. An oxide film(120) and a high temperature oxidation(HTO) film(130) are deposited and etched. An SiN film(140) is deposited and etched to form a first gate. The HTO film is etched to form a first gate. An SiN film is re-deposited and re-etched to form a second gate, and a second gate spacer is formed.
    • 目的:提供一种用于形成半导体器件的栅极间隔物的方法,以通过防止在间隔物子层中形成间隔物来抑制电荷增益现象的发生。 构成:在其上形成有栅极多晶硅的半导体衬底(110)上形成轻掺杂漏极(LDD)区域(200)。 沉积并蚀刻氧化膜(120)和高温氧化(HTO)膜(130)。 沉积和蚀刻SiN膜(140)以形成第一栅极。 HTO膜被蚀刻以形成第一栅极。 重新沉积并重新蚀刻SiN膜以形成第二栅极,并且形成第二栅极间隔物。