Semiconductor apparatus

Details Semiconductor apparatus Semiconductor apparatus

2011-04-26

2011-04-26

Jackson, Jr., Jerome (Department: 2815)

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

Field effect device

Having insulated electrode

C257S358000, C257SE29222

Reexamination Certificate

active

07932561

ABSTRACT:
A semiconductor apparatus is equipped with an internal circuit (201) including a semiconductor element (202)(203) and a protection circuit (101) including a semiconductor (102)(103) for protecting the internal circuit (201) against damage from electrostatic discharge (ESD). The semiconductor elements (102)(103) (202)(203) constituting the internal circuit (201) and the protection circuit (101) include an impurity diffusion region (7)(8) connected by an external terminal and a guard band region (6)(5) formed near the impurity diffusion region (7)(8), respectively. A shortest distance (102L)(103L) between the impurity diffusion region (7)(8) and the guard band region (6)(5) in the semiconductor element (102)(103) of the protection circuit (101) is set to be shorter than a shortest distance (202L)(203L) between the impurity diffusion region (7)(8) and the guard band region (6)(5) in the semiconductor element (202)(203) of the internal circuit (201).

REFERENCES:
patent: 6469354 (2002-10-01), Hirata
patent: 2004/0155294 (2004-08-01), Hung et al.
patent: 05-75118 (1993-03-01), None

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