| 摘要 |
<p>A flexible circuit comprising a liquid crystal polymer film having through-holes and related shaped voids formed therein using an etchant composition comprising a solution in water of from 35 wt. % to 55 wt. % of an alkali metal salt; and from 10 wt. % to 35 wt. % of a solubilizer dissolved in the solution to provide the etchant composition suitable for etching the liquid crystal polymer at a temperature from 50 °C to 120 °C.</p> |
