PRODUCTION METHOD FOR THERMOPLASTIC LIQUID CRYSTAL POLYMER FILM, CIRCUIT BOARD AND PRODUCTION METHOD THEREFOR

摘要

Provided is a production method for a thermoplastic liquid crystal polymer film having excellent heat bonding properties with respect to an adherend comprising a thermoplastic liquid crystal polymer film; also provided are a circuit board and a production method therefor. The production method for the film comprises: an appreciation step, wherein thermoplastic liquid crystal polymer films serving as an adherend film and an adhesive film are respectively prepared, and, for the adherend surface portion of the thermoplastic liquid crystal polymer film, the percentage ratios X (%) and Y (%) occupied by the sums of [C-O bond] and [COO bond] peak surface areas in the total peak surface area from the bond peaks originating from C (1s) are appreciated by X-ray photoelectron spectrometry; and an adjustment step, wherein the thermoplastic liquid crystal polymer film serving as the adhesive film is selected or activated so that said X and Y satisfy the following formulae (1) and (2): 38 ≤ X + Y ≤ 65 (1) -8.0 ≤ Y - X ≤ 8.0 (2)