Patent ID: 7427716

Claim:
An apparatus comprising: an integrated circuit package core; a microvia disposed in a first intermediate layer, the microvia having a first portion adjacent to a first microvia pad and a second portion adjacent to a second microvia pad, a width of the first portion being greater than a width of the second portion, wherein a distance between the first portion and the integrated circuit package core is less than a distance between the second portion and the integrated circuit package core; a first metallization layer disposed between the integrated circuit package core and the first intermediate layer; a second microvia disposed in a second intermediate layer, the second microvia having a third portion adjacent to a third microvia pad and a fourth portion adjacent to a fourth microvia pad, a width of the third portion being greater than a width of the fourth portion, wherein a distance between the third portion and the integrated circuit package core is less than a distance between the fourth portion and the integrated circuit package core; a second metallization layer disposed between the integrated circuit package core and the second intermediate layer; a third microvia disposed in a third intermediate layer, the third microvia having a fifth portion adjacent to a fifth microvia pad and a sixth portion adjacent to a sixth microvia pad, a width of the fifth portion being greater than a width of the sixth portion, wherein a distance between the fifth portion and the integrated circuit package core is less than a distance between the sixth portion and the integrated circuit package core; a third metallization layer disposed between the third intermediate layer and the second intermediate layer; a fourth microvia disposed in a fourth intermediate layer, the fourth microvia having a seventh portion adjacent to a seventh microvia pad and an eighth portion adjacent to an eighth microvia pad, a width of the seventh portion being greater than a width of the eighth portion, wherein a distance between the seventh portion and the integrated circuit package core is less than a distance between the eighth portion and the integrated circuit package core; and a fourth metallization layer disposed between the first intermediate layer and the fourth intermediate layer, wherein a width of the integrated circuit package core is greater than a width of the first intermediate layer, the second intermediate layer, the third intermediate layer, or the fourth intermediate layer.