Patent ID: 7728391
Filing Date: 2010-06-01
Classification: G06F,G11C,H01L

Abstract:
1. A small-pitch three-dimensional mask-programmable memory (SP-3DmM), comprising: a semiconductor substrate having a peripheral circuit, said peripheral circuit comprising a plurality of functional transistors, said functional transistors comprising a plurality of gates in parallel; and at least one mask-programmable memory level stacked above said substrate and coupled to said peripheral circuit through a plurality of inter-level vias, said mask-programmable memory level comprising a plurality of diodes and a plurality of address-selection lines in parallel, said diodes coupled to said address-selection lines, whereby said peripheral circuit reads data from said mask-programmable memory level; wherein the minimum pitch of said address-selection lines of said mask-programmable memory level is smaller than the minimum pitch of said gates of said functional transistors.