发明名称 Method for producing a ferroelectric capacitor that includes etching with hardmasks
摘要 A method for fabricating a device and a device, such as a ferroelectric capacitor, having a substrate, a contact plug through the substrate, a first barrier layer on the substrate, a first electrode on the first barrier layer, a dielectric layer on the first electrode, and a second electrode on the dielectric layer, comprises etching the second electrode and the dielectric layer of the device using a first hardmask, to shape the second electrode and the dielectric layer. The first hardmask is then removed and one or more encapsulating layers are applied to the second electrode and the dielectric layer. A further hardmask is applied to the one or more encapsulating layers. The first electrode is then etched according to the second hardmask down to the first barrier layer and the second hardmask is then removed from the one or more encapsulating layers.
申请公布号 US7001781(B2) 申请公布日期 2006.02.21
申请号 US20030672306 申请日期 2003.09.26
申请人 INFINEON TECHNOLOGIES AG 发明人 LIAN JENNY;EGGER ULRICH;ZHUANG HAOREN
分类号 H01L21/475;H01L21/02;H01L21/311;H01L21/3213;H01L21/8246;H01L27/115 主分类号 H01L21/475
代理机构 代理人
主权项
地址