Insulating tube, semiconductor device employing the tube,...

Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Including dielectric isolation means

Reexamination Certificate

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C257S210000, C257S211000, C257S774000, C257S758000

Reexamination Certificate

active

07345352

ABSTRACT:
An insulating tube includes a underlying insulating film, a first sidewall insulating film disposed on the underlying insulating film, a second sidewall insulating film disposed on the underlying insulating film, opposite to the first sidewall insulating film so as to provide a cavity between the first and second sidewall insulating films having the same height as the first sidewall insulating film, and an upper insulating film provided over the first and second sidewall insulating films.

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Notification of Reasons for Refusal issued by the Japanese Patent Office on Feb. 20, 2007, for Japanese Patent Application No. 2003-202486, and English-language translation thereof.

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