摘要:
Ferroelectric integrated circuit devices, such as memory devices, are formed on an integrated circuit substrate. Ferroelectric capacitor(s) are on the integrated circuit substrate and a further structure on the integrated circuit substrate overlies at least a part of the ferroelectric capacitor(s). The further structure includes at least one layer providing a barrier to oxygen flow to the ferroelectric capacitor(s). An oxygen penetration path contacting the ferroelectric capacitor(s) is interposed between the ferroelectric capacitor(s) and the further structure. The layer providing a barrier to oxygen flow may be an encapsulated barrier layer. Methods for forming ferroelectric integrated circuit devices, such as memory devices, are also provided.
摘要:
Ferroelectric integrated circuit devices, such as memory devices, are formed on an integrated circuit substrate. Ferroelectric capacitor(s) are on the integrated circuit substrate and a further structure on the integrated circuit substrate overlies at least a part of the ferroelectric capacitor(s). The further structure includes at least one layer providing a barrier to oxygen flow to the ferroelectric capacitor(s). An oxygen penetration path contacting the ferroelectric capacitor(s) is interposed between the ferroelectric capacitor(s) and the further structure. The layer providing a barrier to oxygen flow may be an encapsulated barrier layer. Methods for forming ferroelectric integrated circuit devices, such as memory devices, are also provided.
摘要:
Ferroelectric integrated circuit devices, such as memory devices, are formed on an integrated circuit substrate. Ferroelectric capacitor(s) are on the integrated circuit substrate and a further structure on the integrated circuit substrate overlies at least a part of the Ferroelectric capacitor(s). The further structure includes at least one layer providing a barrier to oxygen flow to the ferroelectric capacitor(s). An oxygen penetration path contacting the ferroelectric capacitor(s) is interposed between the ferroelectric capacitor(s) and the further structure. The layer providing a barrier to oxygen flow may be an encapsulated barrier layer. Methods for forming ferroelectric integrated circuit devices, such as memory devices, are also provided.
摘要:
There are provided PRAMS having a plurality of active regions located vertically in sequence and methods of forming the same. The PRAM and the method provide an approach to rapidly changing phase in a phase change layer pattern with a given design rule. A semiconductor substrate defining at least one reference active region is prepared in a cell array region and a peripheral circuit region. Other semiconductor substrates on a vertical line passing a main surface of the reference active region are located in sequence. The other semiconductor substrates define other active regions, respectively. A lower cell gate pattern is formed on the semiconductor substrate of the reference active region, and upper cell gate patterns are disposed on the other semiconductor substrates of the other active regions, respectively.