TRANSLUCENT REFLECTIVE FILM AND REFLECTIVE FILM FOR OPTICAL RECORDING MEDIUM, AND Ag ALLOY SPUTTERING TARGET FOR FORMING SUCH TRANSLUCENT REFLECTIVE FILM AND REFLECTIVE FILM

WIPO Patent Application WO/2007/074895

A1

Disclosed is a translucent reflective film or reflective film for optical recording media, which is composed of a silver alloy having a composition consisting of 0.001-0.1% by mass of Ca, 0.05-1% by mass of Mg, and the balance of Ag and unavoidable impurities. Also disclosed is a target composed of a silver alloy having a composition consisting of 0.001-0.1% by mass of Ca, 0.05-1% by mass of Mg, and the balance of Ag and unavoidable impurities. Further disclosed is a translucent reflective film for optical recording media, which is composed of a silver alloy having a composition consisting of 0.05-1% by mass of Mg, 0.05-1% by mass in total of one or more elements selected from Eu, Pr, Ce and Sm, and the balance of Ag and unavoidable impurities. Still further disclosed is an Ag alloy sputtering target for forming a translucent reflective film for optical recording media, which sputtering target is composed of a silver alloy having a composition consisting of 0.05-1% by mass of Mg, 0.05-1% by mass in total of one or more elements selected from Eu, Pr, Ce and Sm, and the balance of Ag and unavoidable impurities.

KOMIYAMA SHOZO (JP)
YAMAGUCHI GOU (JP)
MISHIMA AKIFUMI (JP)

PCT/JP2006/326210

July 05, 2007

December 28, 2006

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MITSUBISHI MATERIALS CORP (JP)
KOMIYAMA SHOZO (JP)
YAMAGUCHI GOU (JP)
MISHIMA AKIFUMI (JP)

C23C14/34; C22C5/06; C22C5/08; C23C14/14

JP2004131747A	2004-04-30
JP2005146419A	2005-06-09
JP2005178372A	2005-07-07
JP2005100604A	2005-04-14
JP2003306765A	2003-10-31

SHIGA, Masatake et al. (Yaesu Chuo-ku, Tokyo 53, JP)

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