Patent ID: 7327601

Claim:
An apparatus comprising: a cross-point array including a first plurality of conductive array lines and a second plurality of conductive array lines arranged such that each conductive array line from the first plurality of conductive array lines crosses all the conductive array lines from the second plurality of conductive array lines and each conductive array line from the second plurality of conductive array lines crosses all the conductive array lines from the first plurality of conductive array lines; and circuitry in electrical contact with the cross-point array, the circuitry capable of providing a reference voltage to a portion of the conductive array lines, a first select voltage to a portion of the first plurality of conductive array lines, and a second select voltage to a portion of the second plurality of conductive array lines, wherein at least one pair of conductive array lines can be selected by applying the first select voltage to a conductive array line from the first plurality of conductive array lines and applying the second select voltage to at least one conductive array line from the second plurality of conductive array lines, whereby a voltage drop approximately equal to the difference between the first select voltage and the second select voltage occurs across the selected pair of conductive array lines and not across any unselected pairs of conductive array lines, and wherein at least a portion of the circuitry is located underneath the cross-point array.