Bibliographic Details
| Title: |
POLYCRYSTALLINE ALUMINUM THIN FILM AND OPTICAL RECORDING MEDIUM |
| Document Number: |
20090272947 |
| Publication Date: |
November 5, 2009 |
| Appl. No: |
12/158867 |
| Application Filed: |
December 14, 2006 |
| Abstract: |
A polycrystalline aluminum thin film is made of polycrystals of an alloy of aluminum. The polycrystalline aluminum thin film includes a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain. |
| Inventors: |
Higuchi, Takanobu (Tsurugashima-shi, JP); Hosoda, Yasuo (Tsurugashima-shi, JP) |
| Claim: |
1-12. (canceled) |
| Claim: |
13. A polycrystalline aluminum thin film made of polycrystals of an alloy of aluminum, comprising: a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain; and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain, wherein said first additive is at least one of Sn and oxides thereof, and wherein said second additive is at least one selected from the group consisting of Pd, Pt, Ru, and Rh. |
| Claim: |
14. A polycrystalline aluminum thin film made of polycrystals of an alloy of aluminum, comprising: a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain; and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain, wherein said first additive is at least one of Ti and oxides thereof, and wherein said second additive is at least one selected from the group consisting of Pd and Ru. |
| Claim: |
15. A polycrystalline aluminum thin film made of polycrystals of an alloy of aluminum, comprising: a first additive which is distributed with even concentration over an inside of each crystal grain and an interface of the crystal grain; and a second additive which is distributed with higher concentration in the interface of the crystal grain than in the inside of the crystal grain, wherein said first additive is at least one of Nb and oxides thereof, and wherein said second additive is at least one selected from the group consisting of Pt, Ru, and Rh. |
| Claim: |
16. The polycrystalline aluminum thin film according to any one of claims 13 to 15 further comprising an aluminum oxide layer covering the whole of said crystal grain and said interface thereof. |
| Claim: |
17. The polycrystalline aluminum thin film according to any one of claims 13 to 15, wherein an average diameter of the crystal grain of said polycrystal of said alloy of aluminum is 47 nm or less. |
| Claim: |
18. An optical recording medium comprising said polycrystalline aluminum thin film according to any one of claims 13 to 15. |
| Claim: |
19. A mirror comprising said polycrystalline aluminum thin film according to any one of claims 13 to 15. |
| Claim: |
20. An electrode comprising said polycrystalline aluminum thin film according to any one of claims 13 to 15. |
| Claim: |
21. A sputtering target comprising said polycrystalline aluminum thin film according to any one of claims 13 to 15. |
| Current U.S. Class: |
252/514 |
| Current International Class: |
01; 23; 09 |
| Accession Number: |
edspap.20090272947 |
| Database: |
USPTO Patent Applications |
