| http://www.w3.org/ns/prov#value | - In this case, the polyimide layer is the single layer or substrate layer as shown in FIG. 3 and has a thickness of from about 25 to about 150 ??m thick, preferably from about 50 to about 100 ??m thick, and particularly preferred from about 50 to about 75 ??m thick.
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