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New ZrO2/Al2O3/ZrO2 (ZAZ) dielectric film was theoretically designed and successfully demonstrated to be applicable to 45nm DRAM devices. ZAZ dielectric film is a combined structure from tetragonal ZrO2 and amorphous Al 2O3. Thus prepared ZAZ TFT capacitors showed very small Tox.eq value of 6.3Aring and low leakage current less than 1fA/cell. It was also confirmed that ZAZ TFT capacitor was thermally...
Highly scalable saddle-fin cell transistor(S-Fin) has been successfully developed by combining FinFET with recess channel array transistor(RCAT). The S-Fin is simply integrated by dry-etching techniques and the desirable threshold voltage is easily obtained. The S-Fin exhibits feasible transistor characteristics such as excellent short channel effect, driving current, and refresh characteristics as...
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