Liquid crystal polymer-metal laminate and a method of producing such a laminate

摘要

A liquid crystalline polymer-metal laminate having one or more layers of a liquid crystal polymer film and one or more layers of a metallic foil, which when placed in a press and subjected to a pressure of between 5 to 100 bar, and a temperature greater than the melt point of the polymer film and less than the degradation temperature, and at a residence time of 0.5 to 1000 seconds produces a laminate having a minimum peel strength of 10 Newtons per centimeter and a dimensional stability of less than 0.2 %. Optionally, fiber reinforcement fabric can be employed in the laminate to provide increased mechanical strength or dimensional stability. Such a laminate is particularly useful for circuit boards.