Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2005-02-01
2005-02-01
Nelms, David (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S751000, C257S758000, C257S773000, C365S097000, C365S158000, C365S200000
Reexamination Certificate
active
06849888
ABSTRACT:
A semiconductor memory device, a nonvolatile memory device and a magnetic memory device of high reliability are obtained. A semiconductor device as the magnetic memory device includes TMR cells as memory elements, and a stacked interconnection as an interconnection. The stacked interconnection has a first interconnection made of a barrier metal film and a conductor, and a second interconnection made of another barrier metal film and another conductor and stacked on the first interconnection. The stacked interconnection is arranged opposite to the TMR cells. The stacked interconnection is made thicker in the portions facing the TMR cells than in the portions not facing the TMR cells.
REFERENCES:
patent: 6043118 (2000-03-01), Suwanai et al.
patent: 6245663 (2001-06-01), Zhao et al.
patent: 6258654 (2001-07-01), Gocho
patent: 6485988 (2002-11-01), Ma et al.
patent: 6560135 (2003-05-01), Matsuoka et al.
patent: 6707085 (2004-03-01), Jang et al.
patent: 6754098 (2004-06-01), Kunikiyo
patent: 60-113445 (1985-06-01), None
patent: 2001-244435 (2001-09-01), None
patent: 2002-117669 (2002-04-01), None
M. Durlam et al., “Nonvolatile RAM based on Magnetic Tunnel Junction Elements”, ISSCC Digest of Technical Papers, TA 7.3, Feb. 2000, pp. 130-131.
Burns Doane Swecker & Mathis L.L.P.
Nguyen Dao H.
Renesas Technology Corp.
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