会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME
    • 半导体器件及其制造方法
    • US20090108317A1
    • 2009-04-30
    • US11966399
    • 2007-12-28
    • Jung Tak SEO
    • Jung Tak SEO
    • H01L27/108H01L21/8242
    • H01L27/10817H01L27/10855
    • A method of fabricating a semiconductor device includes forming a first interlayer insulating film including a storage node contact plug over a semiconductor substrate. A second interlayer insulating film is formed over the first interlayer insulating film and the storage node contact plug. A mask pattern is formed over the second interlayer insulating film to expose a storage node region. The second interlayer insulating film and the first interlayer insulating film is selectively etched to form a recess exposing a portion of the storage node contact plug. A lower storage node is formed in the recess. The storage node includes a concave structure that surrounds the exposed storage node contact plug. A dip-out process is performed to remove the second interlayer insulating film. A dielectric film is formed over the semiconductor substrate including the lower storage node. A plate electrode is deposited over the dielectric film to form a capacitor.
    • 制造半导体器件的方法包括在半导体衬底上形成包括存储节点接触插塞的第一层间绝缘膜。 在第一层间绝缘膜和存储节点接触插塞上形成第二层间绝缘膜。 在第二层间绝缘膜上形成掩模图案以露出存储节点区域。 选择性地蚀刻第二层间绝缘膜和第一层间绝缘膜以形成暴露存储节点接触插塞的一部分的凹部。 下部存储节点形成在凹部中。 存储节点包括围绕暴露的存储节点接触插头的凹形结构。 执行汲取处理以去除第二层间绝缘膜。 在包括下存储节点的半导体衬底上形成电介质膜。 在电介质膜上沉积平板电极以形成电容器。