Patent ID: 7026718
Filing Date: 2006-04-11
Classification: H01L

Abstract:
1. A microprocessor comprising: a first integrated circuit chip having an active face including a central processing unit; and a second integrated circuit chip mounted on, and electrically connected to, the active face of the first integrated circuit, wherein the second integrated circuit chip provides added functionality to the central processing unit of the first integrated circuit, wherein at least one metal region projecting from the active face of the first integrated circuit chip overlies at least one metal region projecting from a surface of the second integrated circuit chip, and wherein the second integrated circuit chip is spaced apart from the first integrated chip by a distance of at least a projection height of the at least one metal region projecting from the active face of the first integrated circuit chip plus a projection height of the at least one metal region projecting from the surface of the second integrated circuit chip, wherein the distance is sufficient to permit electrical connection to contact pads on the active surface of the first integrated circuit chip for external connection to the central processing unit.