Optical: systems and elements – Light interference – Produced by coating or lamina
Reexamination Certificate
2006-10-16
2011-12-20
Pritchett, Joshua L (Department: 2872)
Optical: systems and elements
Light interference
Produced by coating or lamina
C359S359000, C359S586000, C359S590000
Reexamination Certificate
active
08081384
ABSTRACT:
A multilayer reflective film coated substrate includes a multilayer under film comprised of Mo/Si alternately-layered films, an intermediate layer in the form of a Si film, and a multilayer reflective film comprised of Mo/Si alternately-layered films for reflecting exposure light. The multilayer under film, the intermediate layer, and the multilayer reflective film are formed on a substrate in this order. Given that a cycle length of the multilayer under film is d bottom (unit:nm), a thickness of the intermediate layer is d Si (unit:nm), and a cycle length of the multilayer reflective film is d top (unit:nm), relationships of a formula (1) and a formula (2) are satisfied,the formula (1) given byin-line-formulae description="In-line Formulae" end="lead"?n×dtop−0.05≦dbottom≦n×dtop+0.05in-line-formulae description="In-line Formulae" end="tail"?where n is a natural number equal to or greater than 1, andthe formula (2) given byin-line-formulae description="In-line Formulae" end="lead"?m×dtop−1.2≦dSi≦−m×dtop+1.2in-line-formulae description="In-line Formulae" end="tail"?where m is an integer equal to or greater than 0.
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Japanese Office Action corresponding to Japanese Patent Application No. 2005-300575, dated Apr. 23, 2010.
Hosoya Morio
Ikeda Akira
Yamada Takeyuki
Hoya Corporation
Pritchett Joshua L
Sughrue & Mion, PLLC
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