ALUMINUM ALLOY REFLECTING FILM FOR OPTICAL DISK AND TARGET MATERIAL FOR THE SAME

Title:

ALUMINUM ALLOY REFLECTING FILM FOR OPTICAL DISK AND TARGET MATERIAL FOR THE SAME

Document Type and Number:

Japanese Patent JPH0676360

Kind Code:

A

Abstract:

PURPOSE: To ensure proper high corrosion resistance by using an Al alloy. contg. 0.3-2.0wt.% Si+Fe, ≤0.1wt.% each of Cu and/or Ti as significant elements or impurities and ≤0.002wt.% Bi.

CONSTITUTION: Each of the objective Al alloy reflecting film for an optical disk and the objective target material for the Al alloy reflecting film consists of 0.3-2.0wt.% Si+Fe, ≤0.1wt.% each of Cu and/or Ti as significant elements or impurities, ≤0.002wt.% B and the balance Al with inevitable impurities. When a castable Al alloy having the above-mentioned compsn. is used as the target material, a high reflecting film can properly be produced by sputtering.

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Inventors:

SUGIYAMA MASAHARU
HIRAI TORU
HIEI KAYAKO

Application Number:

JP24712392A

Publication Date:

March 18, 1994

Filing Date:

August 25, 1992

Export Citation:

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Assignee:

NIPPON LIGHT METAL CO
NIKKEI TECHNO RES CO LTD

International Classes:

C23C14/14; G11B7/258; G11B7/2585; G11B7/26; (IPC1-7): G11B7/24; C23C14/14; G11B7/26

Attorney, Agent or Firm:

Ichiichi Shirakawa

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