Patent ID: 6071597
Filing Date: 2000-06-06
Classification: H01L,H05K,Y10T

Abstract:
A flexible printed circuit comprising:a) at least one layer of polymer dielectric material,b) at least one layer of electrically conductive material thereover, andc) at least one circuit trace,each of said dielectric layers and each of said conductive layers having two major surfaces, at least one layer selected from a dielectric layer or a conductive layer having at least one aperture therein,wherein at least one of said dielectric layers has a material selected from the group consisting of diamond-like carbon, hydrogenated diamond-like carbon, functionalized diamond-like carbon, silicone nitride, boron nitride, silicon carbide, silicon dioxide and boron trifluoride coated on at least a portion of at least one major surface of said dielectric layers, said material having a Young's Modulus of from about 100 to about 200 GPa, a dielectric constant between 45 MHz and 20 GHz of from about 8 to about 12, and a Vickers hardness of from about 2000 to about 9000 kg/mm.sup.2.