Patent ID: 6753205
Filing Date: 2004-06-22
Classification: H01L

Abstract:
A manufacturing method comprising:forming or more vias in a first substrate of a semiconductor material having a first side and a second side opposite to the first side, wherein the vias are formed in the second side, wherein the vias do not go through the first substrate; forming a dielectric and a conductor in at least one of the vias; forming a mask over the first side of the first substrate to define a cavity; removing material from the first side of the first substrate to form said cavity, wherein the material removing operation comprises: removing semiconductor material of the first substrate to expose the dielectric on the first side of the first substrate; after exposing the dielectric on the first side of the first substrate, removing the dielectric to expose the conductor; wherein at a conclusion of the material removing operation, the conductor protrudes on the first side in the cavity, and wherein one or more first contact pads are made in the cavity using the protruding conductor; bonding a contact pad of a first semiconductor die to one of the first contact pads to cause the contact pad of the first semiconductor die to adhere to the one of the first contact pads; attaching, and electrically connecting, one or more second semiconductor dies to the second side of the first substrate.