发明名称 Semiconductor integrated circuit device having at least two contact holes.
摘要 <p>A semiconductor integrated circuit device includes a semiconductor substrate (1), a field insulation film (2) formed on a surface of the semiconductor substrate by a selective thermal oxidation process in which an oxidation-resistant mask is used, an insulation film (7) formed on the field insulation film, and a conductive film (81, 82, 11) covering the contact hole so as to be in contact with the surface of the substrate. The insulation film has a contact hole (7A), and edges of the contact hole extending in a first direction (X) are defined by edges of the field insulation film (2). On the other hand, edges of the contact hole extending in a second direction (Y) are defined by edges of the insulation film (7) which are formed by patterning.</p>
申请公布号 EP0315421(A1) 申请公布日期 1989.05.10
申请号 EP19880310284 申请日期 1988.11.02
申请人 FUJITSU LIMITED 发明人 EMA, TAIGI
分类号 H01L23/522;H01L21/762;H01L21/768;H01L21/8242;H01L27/10;H01L27/108 主分类号 H01L23/522
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