Guard ring device receiving different voltages for forming...

Details Guard ring device receiving different voltages for forming... Guard ring device receiving different voltages for forming...

2008-04-28

2009-11-10

Smith, Matthew (Department: 2823)

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

Passive components in ics

C257S528000

Reexamination Certificate

active

07615843

ABSTRACT:
A semiconductor device in which a decoupling capacitor is formed by supplying different power levels to a guard ring device is disclosed. The semiconductor device includes a guard ring, having conductive rings, which surrounds a memory chip. The conductive rings are stacked in a multiplayer structure, and insulation layers are formed between the conductive rings. Voltages of different levels are applied to adjacent conductive rings.

REFERENCES:
patent: 7256474 (2007-08-01), Wakayama et al.
patent: 2003/0137243 (2003-07-01), Costello
patent: 2007/0241422 (2007-10-01), Chen
patent: 1020030002644 (2003-01-01), None

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