نتایج جستجو برای: thickness variations

تعداد نتایج: 292736  

2001
Shiying Xiong Jeffrey Bokor

We investigate the manufacturability of 20-nm double-gate and FinFET devices in integrated circuits by projecting process tolerances. Two important factors affecting the sensitivity of device electrical parameters to physical variations were quantitatively considered. The quantum effect was computed using the density gradient method and the sensitivity of threshold voltage to random dopant fluc...

Journal: :International journal of radiation oncology, biology, physics 2011
Alexei Trofimov Paul L Nguyen Jason A Efstathiou Yi Wang Hsiao-Ming Lu Martijn Engelsman Scott Merrick Chee-Wai Cheng James R Wong Anthony L Zietman

PURPOSE To quantify daily variations in the anatomy of patients undergoing radiation therapy for prostate carcinoma, to estimate their effect on dose distribution, and to evaluate the effectiveness of current standard planning and setup approaches employed in proton therapy. METHODS We used series of computed tomography data, which included the pretreatment scan, and between 21 and 43 in-room...

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