A method for forming an electronic structure. Provides is a layer that includes a cylindrical volume of a photoimageable dielectric (PID) material, an annular volume of the PID material circumscribing the cylindrical volume, and a remaining volume of the PID material circumscribing the annular volume....http://www.google.fr/patents/US6830875?utm_source=gb-gplus-shareBrevet US6830875 - Forming a through hole in a photoimageable dielectric structure
Forming a through hole in a photoimageable dielectric structure