SUBSTRATE FOR SUSPENSION, PROCESS FOR PRODUCING THE SAME, SUSPENSION FOR MAGNETIC HEAD, AND HARD DISK DRIVE
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Dec 23, 2016
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Apr 18, 2007
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A substrate for suspension comprises a metallic substrate, an insulating layer formed on the metallic substrate, a conductor layer formed on the insulating layer, and a cover layer covering the conductor layer. The insulating layer and the cover layer are formed from different materials, whose coefficients of hygroscopic expansion are in the range between 3×10−6/% RH and 30×10−6/% RH. The difference between the coefficients of hygroscopic expansion of the two materials is 5×10−6/% RH or less.
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