发明名称 |
METHOD OF STORING METAL LANTHANUM TARGET, VACUUM-SEALED METAL LANTHANUM TARGET, AND THIN FILM FORMED BY SPUTTERING THE METAL LANTHANUM TARGET |
摘要 |
<p>16 PCT/JP2012/053242A method of storing a metal lanthanum sputtering target, wherein a surface of a metal lanthanum target to be stored is processed so as to achieve a roughness Ra of5 1 pm or less, a lanthanum fluoride coating is formed on the surface thereof, the metal lanthanum target to which the lanthanum fluoride coating was formed is subsequently charged in a vacuum pack with an oxygen transmission rate of 0.1 cm3/m2 per 24 h at 1 atm or less and a moisture vapor transmission rate of 0.1 g/m2 per 24 h or less, and the vacuum pack is thereafter subject to vacuum suction and sealing for storage. This invention aims to provide technology for enabling the long-term storage of a sputtering target in a usable state by devising the method of storing a metal lanthanum target as a rare earth metal, and thereby inhibiting the degradation phenomenon caused by the oxidation of the target due to residual air or the inclusion of air.15 [Selected Drawing] Fig. 3</p> |
申请公布号 |
SG190696(A1) |
申请公布日期 |
2013.07.31 |
申请号 |
SG20130035456 |
申请日期 |
2012.02.13 |
申请人 |
JX NIPPON MINING & METALS CORPORATION |
发明人 |
NARITA SATOYASU;SATOH KAZUYUKI;KOIDO YOSHIMASA |
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