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    • 6. 发明授权
    • Method for forming conductive line of semiconductor device
    • 形成半导体器件导线的方法
    • US5629238A
    • 1997-05-13
    • US557534
    • 1995-11-14
    • Ji-hyun ChoiHong-jae ShinByung-keun HwangU-in Chung
    • Ji-hyun ChoiHong-jae ShinByung-keun HwangU-in Chung
    • H01L21/3205H01L21/316H01L21/768H01L23/522H01L21/283
    • H01L21/76831H01L21/76877
    • A method for forming a conductive line uses a fluorine doped oxide layer as an insulating layer between conductive lines. The method comprises the steps of: (a) forming a fluorine doped oxide layer on a semiconductor substrate on which a lower structure is formed; (b) etching the oxide layer of the region where a conductive line is to be formed, thereby forming a trench; (c) forming an insulating layer on the overall surface of the resultant substrate; depositing conductive material on the resultant substrate; and (e) etching back the conductive material so that the conductive material is left on the trench only, thereby forming a conductive line. In this method, the conductive line is formed of aluminum-containing material and the insulating layer is formed of silicon dioxide. In the present invention, the insulating layer is interposed between the fluorine doped oxide layer and the aluminum-containing conductive line and thus the conductive line is free from corrosion.
    • 形成导线的方法使用氟掺杂氧化物层作为导线之间的绝缘层。 该方法包括以下步骤:(a)在形成下部结构的半导体衬底上形成氟掺杂氧化物层; (b)蚀刻要形成导电线的区域的氧化物层,从而形成沟槽; (c)在所得基板的整个表面上形成绝缘层; 在所得基板上沉积导电材料; 和(e)蚀刻导电材料,使得导电材料仅留在沟槽上,从而形成导电线。 在该方法中,导电线由含铝材料形成,绝缘层由二氧化硅形成。 在本发明中,绝缘层介于氟掺杂氧化物层和含铝导电线之间,因此导电线无腐蚀。