Patent ID: 6351030
Filing Date: 2002-02-26
Classification: H01L

Abstract:
An electronic package comprising:a first circuitized substrate having first and second surfaces; a semiconductor chip positioned on said first surface of said first circuitized substrate and including a first plurality of electrical conductors electrically coupling said semiconductor chip to said first circuitized substrate; a second plurality of electrical conductors located on said second surface of said first circuitized substrate and adapted for directly electrically coupling said first circuitized substrate to an external circuitized substrate, said second plurality of electrical conductors comprising a plurality of substantially spherical solder balls not being electrically connected to said external circuitized substrate; and a dielectric protective covering, substantially covering all external surfaces of said first circuitized substrate, said semiconductor chip, and said first plurality of electrical conductors, and wherein said dielectric protective covering conforms to an embedded external surface of one of said second plurality of substantially spherical solder balls such that an exposed curved surface of at least one of said substantially spherical solder balls is positioned for direct contact with the external circuitized substrate.