Resin film with conductor layer, multilayer substrate, and method for producing resin film with conductor layer

A laminate structure comprising:

• a resin film containing a thermoplastic resin and having a plurality of voids therein;
• and
• a conductor layer adjacent to at least one main surface of the resin film,
• wherein a first set of voids of the plurality of voids in the resin film are localized between a first position and a second position such that the first set of voids between the first position and the second position are greater in number than a second set of voids of the plurality of voids between the second position and a third position, wherein the first position is proximal to an end surface of the resin film facing the conductor layer, the second position is distant from the first position by one-third of a thickness of the resin film in a lamination direction of the resin film and the conductor layer, and the third position is distant from the second position by one-third of the thickness of the resin film in a direction away from the first position in the lamination direction,
• wherein the thermoplastic resin is a liquid crystal polymer,
• wherein the liquid crystal polymer comprises a benzene ring, a naphthalene ring, and a carboxymethyl group, and
• wherein, in a 13C-NMR spectrum of the resin film decomposed with supercritical methanol, an integral value CA of a peak derived from the benzene ring, an integral value CB of a peak derived from the naphthalene ring, and an integral value CC of a peak derived from the carboxymethyl group satisfy (CA+CB)/CC of 1.25 to 1.65.