کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9566702 | 1388367 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optical simulation, optimized design and fabrication of (ZrO2)x-(Al2O3)1âx composite films with thin inserted TiO2 layers for ArF-line high transmission attenuated phase shift mask blank applications
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The tunable optical constants of the stoichiometric (ZrO2)x-(Al2O3)1âx composite films with thin inserted TiO2 layers are simulated as Ï-phase shifters. The optimized composition range of the superlattices to be used as a high transmission attenuated phase shift mask (HT-APSM) blank is found. The absorption edge shifts to the longer wavelengths when the thickness fraction of the TiO2 layer increases. The optimized film for ArF-line HT-APSM blank applications must have the lower inspection transmittance for the better inspection and the lower reflectance at the exposure wavelength for a better aerial image as Ï-phase shifters, and they will be easier to fabricate than a superlattice. In order to find such a film, (ZrO2)x-(Al2O3)1âx composite films with various inserted TiO2 layers are simulated. The optimal deposition processes of such a film are also determined. For example, a (ZrO2)0.187-(Al2O3)0.813 composite film with two inserted TiO2 thin layers is fabricated. The optical properties are as follows: a transmittance of 19.8%, a reflectance of 9.1%, a calculated phase shift of â¼181.5° at the exposure wavelength of 193 nm, and a transmittance of 18.9% at the inspection wavelength of 257 nm. Such a film should be used as an optimized HT-APSM blank.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 252, Issue 4, 15 November 2005, Pages 996-1005
Journal: Applied Surface Science - Volume 252, Issue 4, 15 November 2005, Pages 996-1005
نویسندگان
Fu-Der Lai,