کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1672862 1008940 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Diffusion barrier capability of Zr–Si films for copper metallization with different substrate bias voltage
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Diffusion barrier capability of Zr–Si films for copper metallization with different substrate bias voltage
چکیده انگلیسی

Efficiency of Zr–Si diffusion barriers in Cu metallization has been investigated. Amorphous Zr–Si diffusion barriers were deposited on the Si substrates by reactive magnetron sputtering with different negative substrate bias. The mass density of Zr–Si films increases with substrate bias voltage up to − 150 V. The deposition rate decreased with the negative substrate bias from 5.4 nm/min to 1.8 nm/min. XRD measurements show that the Zr–Si barriers have amorphous structure in the as-deposited state. The FE-SEM images show that the sizes of spherical granules on the Zr–Si film surface increase with increasing the substrate bias. The Cu/Zr–Si/Si structures were prepared and annealed in Ar ambient at temperatures varying from 500 to 650 °C for an hour. It is shown from the comparison study that the Zr–Si film deposited with − 150 V is better at maintaining good performance in Cu/Zr–Si/Si contact system than that of Zr–Si film deposited with − 50 V.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 517, Issue 18, 31 July 2009, Pages 5593–5596
نویسندگان
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