Active solid-state devices (e.g. – transistors – solid-state diode – Bulk effect device – Bulk effect switching in amorphous material
Reexamination Certificate
2011-03-08
2011-03-08
Doan, Theresa T (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Bulk effect device
Bulk effect switching in amorphous material
C257S002000, C257S003000, C438S095000
Reexamination Certificate
active
07902539
ABSTRACT:
Any of a plurality of contact plugs which reaches a diffusion layer serving as a drain layer of an MOS transistor has an end provided in contact with a lower surface of a thin insulating film provided selectively on an interlayer insulating film. A phase change film constituted by GST to be a chalcogenide compound based phase change material is provided on the thin insulating film, and an upper electrode is provided thereon. Any of the plurality of contact plugs which reaches the diffusion layer serving as a source layer has an end connected directly to an end of a contact plug penetrating an interlayer insulating film.
REFERENCES:
patent: 7071485 (2006-07-01), Takaura et al.
patent: 2006-287222 (2006-10-01), None
patent: 2006-294970 (2006-10-01), None
patent: 2006-352082 (2006-12-01), None
Y.N. Hwang et al., “Writing Current Reduction for High-density Phase-change RAM,” International Electron Devices Meeting (2003), pp. 893-896.
Iida Satoshi
Matsuoka Masamichi
Moniwa Masahiro
Nitta Fumihiko
Doan Theresa T
McDermott Will & Emery LLP
Renesas Technology Corp.
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