Patent ID: 8405207

Claim:
A microelectronic package, comprising: a substrate having a first surface and a plurality of substrate contacts thereon, and a second surface opposite the first surface, the second surface extending in a first direction and in a second direction transverse thereto; a microelectronic element having a greater number of active devices configured for providing memory storage array function than any other function, the microelectronic element having a rear face facing the first surface, a front face opposite the first surface, and first and second opposed edges each extending between the front and rear faces and extending in a direction parallel to the front face, the microelectronic element having at least one column of element contacts extending in the first direction along the front face, wherein the first and second edges define an axial plane extending in the first direction and also in a third direction normal to the rear face of the microelectronic element, the axial plane being centered relative to the first and second edges; conductive structure extending above the front face, the conductive structure electrically connecting the element contacts with the substrate contacts; and a plurality of parallel columns of terminals extending in the first direction at the second surface and electrically connected with the substrate contacts, the terminals including first terminals exposed in a central region of the second surface of the substrate, the first terminals configured to carry address information usable by circuitry within the package to determine an addressable memory location from among all the available addressable memory locations of a memory storage array within the microelectronic element, and wherein the central region has a width in the second direction, the width of the central region not more than three and one-half times a minimum pitch between any two adjacent columns of the parallel columns of the terminals, and the axial plane intersects the central region.