发明名称 Ferroelectric capacitor devices and a method for compensating for damage to a capacitor caused by etching
摘要 A ferroelectric capacitor in which damage caused by etching exposed faces of a ferroelectric layer of the capacitor is compensated by depositing a seeding layer of ferroelectric material such as PZT on one or more exposed faces of the ferroelectric layer and depositing an electrode layer made of conductive material such as platinum on the seeding layer. An oxygen annealing recovery process is applied to the device. The seeding layer can transform the phase of the damaged surfaces from amorphous to crystalline during the recovery annealing process and, at the same time, provide the damaged surfaces of the ferroelectric layer with missing element(s), for example lead. The oxygen necessary for recovery of the damage may be obtained through the platinum layer from the oxygen atmosphere.
申请公布号 US7119021(B2) 申请公布日期 2006.10.10
申请号 US20030703870 申请日期 2003.11.07
申请人 INFINEON TECHNOLOGIES AG 发明人 MOON BUM-KI
分类号 H01L21/302;H01L21/02 主分类号 H01L21/302
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