Flow sensing device and electronics apparatus

Measuring and testing – Volume or rate of flow – Thermal type

Reexamination Certificate

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Reexamination Certificate

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06997051

ABSTRACT:
A structure is disclosed in which a conductive material having corrosiveness equal to or higher than that of the materials constituting electronics circuitry is disposed on halfway of the diffusion path of corrosive gases between an entrance place thereof and the electronics circuitry, whereby the conductive material traps the corrosive gases.

REFERENCES:
patent: 6070462 (2000-06-01), Igarashi et al.
patent: 6176131 (2001-01-01), Hecht et al.
patent: 6640627 (2003-11-01), Sato et al.
patent: 8-338279 (1996-12-01), None

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