Small-pitch three-dimensional mask-programmable memory

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode

Reexamination Certificate

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C257S401000

Reexamination Certificate

active

07728391

ABSTRACT:
The present invention discloses a small-pitch three-dimensional mask-programmable memory (SP-3DmM). It is an ultra-low-cost and ultra-high-density semiconductor memory. SP-3DmM comprises a mask-programmable memory level stacked above the substrate. This memory level comprises diodes but no transistors or antifuses. Its minimum line pitch is smaller than the minimum gate pitch of the substrate transistors.

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patent: 7423304 (2008-09-01), Cleeves et al.
de Graaf et al, “A Novel High-Density Low-Cost Diode Programmable Read Only Memory” Technical Digest of International Electron Device Meeting, 1996.

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