STAINLESS STEEL SUBSTRATE WITH CONDUCTIVE METAL LAYER, HARD DISK SUSPENSION MATERIAL AND HARD DISK SUSPENSION MANUFACTURED BY USING THE MATERIAL
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United States of America Patent
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Issued Date -
Jun 10, 2010
app pub date -
Jan 26, 2007
filing date -
Feb 15, 2006
priority date (Note) -
Abandoned
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Abstract
A stainless steel substrate with one or more conductive metal layers, a method for manufacturing the same, and a hard disk drive suspension material using the same that are excellent in etching accuracy and does not involve the use of any substances casing environmental burdens, while ensuring stable adhesion between the conductive metal layers on the stainless steel substrate and the polyimide-based resin layer. The conductive metal layers are formed to have a total thickness ranging from 0.1 to 10 ?m, a centerline average surface roughness Ra from 0.05 to 1 ?m, and a ten-point average surface roughness Rz from 1 to 5 ?m, respectively.
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