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    • 4. 发明公开
    • 반도체소자의 콘택홀 형성방법
    • 用于形成半导体器件的接触孔以减少接触电阻的方法
    • KR1020040089306A
    • 2004-10-21
    • KR1020030023022
    • 2003-04-11
    • 에스케이하이닉스 주식회사
    • 이호석김동석김진웅
    • H01L21/28
    • H01L21/02063H01L21/02052H01L21/31116H01L21/76897Y10S438/902Y10S438/906Y10S438/963
    • PURPOSE: A method for forming a contact hole of a semiconductor device is provided to reduce contact resistance by removing polymer residues generated at bottom of a contact hole using plasma containing oxygen gas. CONSTITUTION: A conductive pattern(102) including a hard mask(104) and a spacer(106) is formed on a substrate(100). A capping layer(108) and an interlayer dielectric(110) are sequentially formed on the resultant structure. By selectively etching the interlayer dielectric, a desired portion of the capping layer is exposed. The exposed capping layer is removed, thereby forming a contact hole(114). Polymer residues on the bottom of the contact hole are changed to a silicon oxide layer(118) by plasma treatment containing oxygen gas. Then, the silicon oxide layer is removed by cleaning.
    • 目的:提供一种用于形成半导体器件的接触孔的方法,通过使用含氧气体的等离子体除去在接触孔底部产生的聚合物残渣来降低接触电阻。 构成:在基板(100)上形成包括硬掩模(104)和间隔件(106)的导电图案(102)。 在所得到的结构上依次形成覆盖层(108)和层间电介质(110)。 通过选择性地蚀刻层间电介质,露出覆盖层的期望部分。 去除露出的覆盖层,从而形成接触孔(114)。 通过含有氧气的等离子体处理将接触孔底部的聚合物残渣变成氧化硅层(118)。 然后,通过清洗除去氧化硅层。
    • 5. 发明公开
    • 반도체 장치에서 셀프 얼라인 콘택홀 형성 방법
    • 用于制造半导体器件的自对准接触孔的方法
    • KR1020040004911A
    • 2004-01-16
    • KR1020020039138
    • 2002-07-06
    • 삼성전자주식회사
    • 송종희서준
    • H01L21/3205
    • H01L21/76897Y10S438/902Y10S438/976
    • PURPOSE: A method for fabricating a self-aligned contact hole of a semiconductor device is provided to improve reliability and yield of the semiconductor device by minimizing a defect caused by a consumed nitride layer pattern for capping a conductive layer in a process for forming the self-aligned contact hole. CONSTITUTION: Conductive structures including a conductive layer pattern(103) and a passivation layer pattern formed on the upper surface and the sidewall of the conductive layer pattern are formed on a semiconductor substrate(100). The first insulation layer(114a) is formed to bury the gas between the conductive structures. The first insulation layer and the upper surface of the first insulation layer and the passivation layer pattern are sequentially etched back by a predetermined thickness so that the upper surface of the exposed passivation layer pattern is processed to be flat. The second insulation layer is formed on the resultant structure. A predetermined portion of the second and first insulation layers is selectively removed by a photolithography process to form a contact hole between the conductive structures wherein the semiconductor substrate is exposed to the contact hole.
    • 目的:提供一种用于制造半导体器件的自对准接触孔的方法,以通过最小化在用于形成自身的工艺中用于封盖导电层的消耗的氮化物层图案所引起的缺陷来提高半导体器件的可靠性和产量 对准接触孔。 构成:在半导体衬底(100)上形成包括形成在导电层图案的上表面和侧壁上的导电层图案(103)和钝化层图案的导电结构。 第一绝缘层(114a)形成为在导电结构之间埋置气体。 将第一绝缘层和第一绝缘层的上表面和钝化层图案依次蚀刻回预定厚度,使得暴露的钝化层图案的上表面被处理成平坦的。 在所得结构上形成第二绝缘层。 通过光刻工艺选择性地去除第二和第一绝缘层的预定部分,以在半导体衬底暴露于接触孔的导电结构之间形成接触孔。