Patent ID: 7178229

Claim:
A method of making an innerlaver panel, comprising: providing a metallic foil; forming at least one fiducial over the foil; forming at least one feature over the foil; applying a dielectric over the at least one feature and over the at least one fiducial, thereby embedding the at least one fiducial and the at least one feature; and identifying the location of the at least one fiducial using X-rays, further comprising: applying a second foil to the dielectric before identifying the location of the at least one fiducial; forming at least one register hole in the innerlayer panel according to the identified location of the at least one fiducial; positioning a photo-tool according to the location of the at least one register hole; imaging the foils with the photo-tool; and etching the foils, wherein etching results in terminations for the embedded at least one feature.