系统LSI嵌入式铁电存储器技术

Y. Nagano, E. Fujii
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引用次数: 1

摘要

开发了工作在极低电压下的系统LSI嵌入式铁电存储器(FeRAM)。低压运行的关键技术是新开发的完全被氢势垒封装的叠层铁电电容器,使我们能够在集成过程中消除铁电薄膜的氢还原。该技术不仅适用于平面堆叠铁电电容器,也适用于三维(3-D)电容器,是大批量生产0.18 μ m低功耗系统lsi嵌入式FeRAM及以后的最有前景的技术。
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System LSI Embedded Ferroelectric Memory Technology
System LSI embedded ferroelectric memory (FeRAM) operating at a very low voltage has been developed. The key technology of the low-voltage operation is the newly developed stacked ferroelectric capacitors completely encapsulated by hydrogen barriers, which enable us to eliminate hydrogen reduction of the ferroelectric thin film during the integration process. This technology is applied for not only the planer stachked ferroelectric capacitors but also the three-dimensional (3-D) capacitors, which is the most promising for mass production of 0.18-mum low-power system LSI-embedded FeRAM and beyond.
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