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Abstract

Provided are a laminate for HDD suspension capable of avoiding data loss and crosstalk caused by higher frequency and coping with reduction in size and increase in capacity of HDD and a method for manufacturing the same. The laminate for HDD suspension comprises a 10-50 μm-thick stainless steel layer, a 0.1-10 μm-thick conductor layer (a) of a metal showing an electrical conductivity of 10-100% IACS, a 5-20 μm-thick insulating layer of a polyimide resin showing a linear expansion coefficient of 1×10⁻⁵-3×10⁻⁵/° C., and a 5-50 μm-thick conductor layer (b). The manufacturing method comprises applying a solution of a polyimide precursor in one layer or more to a conductor layer (a) of a laminate consisting of a stainless steel layer and a conductor layer (a), drying the polyimide precursor layer and then heating at 250° C. or above thereby forming a 5-20 μm-thick insulating layer of polyimide resin with a linear expansion coefficient of 1×10⁻⁵-3×10⁻⁵/° C., placing a 5-50 μm-thick conductor layer (b) on the insulating layer, and pressing under heat and pressure.

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