Patent ID: 7595454

Claim:
A method of making a circuitized substrate, said method comprising: providing a first layer of dielectric material; forming a first conductive through-hole within said first layer of dielectric material, said first conductive through-hole including a land portion and a barrel portion; applying a second layer of dielectric material over said first conductive through-hole including said land portion such that a portion of said dielectric material of said second layer will substantially fill said first conductive through-hole; removing a part of said dielectric material of said second layer from above said land portion and from a predetermined depth within said first conductive through-hole, said removing resulting in the formation of internal walls of said dielectric material of said second layer having a predefined configuration and an upper surface of said dielectric material of said second layer at said predetermined level within said first conductive through hole; and plating metallurgy on said internal walls of said dielectric material of said second layer, on the internal walls of said first conductive through-hole to substantially said predetermined depth within said first conductive through hole, and on said upper surface of said dielectric material of said second layer, to form a second conductive through-hole electrically coupled to and partially positioned within said first conductive through-hole within said first layer of dielectric material.