Patent ID: 8590144

Claim:
A method of manufacturing a printed circuit board, the method comprising: disposing first and second insulating members and first and second conductive films on both sides of a separating member to perform a thermocompression bonding process on the first and second insulating members and the first and second conductive films on the both sides of the separating member, so as to attach the first member to the second member with the separating member therebetween and attach the first insulating member to the first conductive film and attach the second insulating member to the second conductive film; selectively removing the first and second conductive films to form first and second circuit patterns; after the forming of the first and second circuit patterns, embedding the first and second circuit patterns in the first and second insulating members, wherein a distance between an exposed surface of the first insulating member and the separating member is greater than a distance between an exposed surface of the first circuit pattern and the separating member, wherein a distance between an exposed surface of the second insulating member and the separating member is greater than a distance between an exposed surface of the second circuit pattern and the separating member, and wherein all distances are taken in a direction approximately perpendicular to the exposed surface of the first insulating member; selectively plating or oxidizing the first and second circuit patterns; and cutting the separating member and the first and second insulating members to separate the first and second insulating members with the first and second circuit patterns from the separating member.