Stock material or miscellaneous articles – Structurally defined web or sheet – Continuous and nonuniform or irregular surface on layer or...
Patent
1997-01-02
1999-03-09
Kiliman, Leszek
Stock material or miscellaneous articles
Structurally defined web or sheet
Continuous and nonuniform or irregular surface on layer or...
428336, 428684T, 428684TS, 428684TR, 428684ST, 428684SG, 428652, 428900, 427129, 427130, 427131, 360135, 360 9701, 2041922, G11B 566
Patent
active
058797831
ABSTRACT:
A magnetic recording medium exhibiting low medium noise is formed by depositing a seed layer on a glass or a glass-ceramic substrate and oxidizing the deposited seed layer, under controlled conditions to induce controlled surface microroughness. The subsequently sputter deposited underlayer exhibits a fine average grain size, such as less than about 20 nm. The magnetic alloy sputter deposited and epitaxially grown on the underlayer exhibits a fine average grain size, such as less than about 15 nm, and magnetic clusters reduced in size.
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Chang Jyh-Kau
Chen Ga-Lane
Chen Qixu
Kiliman Leszek
Seagate Technology Inc.
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