Tunable-wavelength optical filter and method of...

Semiconductor device manufacturing: process – Bonding of plural semiconductor substrates

Reexamination Certificate

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Details

C438S456000, C438S457000, C359S578000, C359S577000

Reexamination Certificate

active

10671825

ABSTRACT:
An active type tunable wavelength optical filter having a Fabry-Perot structure is disclosed. A tunable wavelength optical filter which comprises a lower mirror in which silicon films and oxide films are sequentially laminated in a multi-layer and the silicon film is laminated on the highest portion; an upper mirror in which silicon films and oxide films are sequentially laminated in a multi-layer and the silicon film is laminated on the highest portion and which is spaced away from the lower mirror by a predetermined distance; a connecting means for connecting and supporting the lower mirror and the upper mirror to a semiconductor substrate; and electrode pads for controlling the gap between the lower mirror and the upper mirror by an electrostatic force and the method of manufacturing the same are provided. Thereby, by finely driving the upper and lower mirrors composed of a multi-layer structure of the silicon film and the oxide film by the electrostatic force, the wavelength of the transmitted light with respect to the incident light can be selectively sent.

REFERENCES:
patent: 5561523 (1996-10-01), Blomberg et al.
patent: 5909280 (1999-06-01), Zavracky
patent: 6304689 (2001-10-01), Dingel et al.
patent: 6341039 (2002-01-01), Flanders et al.
patent: 6373632 (2002-04-01), Flanders
patent: 6381022 (2002-04-01), Zavracky
patent: 6449403 (2002-09-01), Cush et al.
patent: 6487230 (2002-11-01), Boucart et al.
patent: 6525880 (2003-02-01), Flanders et al.
patent: 6594059 (2003-07-01), Flanders
patent: 6661830 (2003-12-01), Reed et al.
patent: 6665459 (2003-12-01), Cush et al.
patent: 6724785 (2004-04-01), Tucker et al.
patent: 6822779 (2004-11-01), Chi
patent: 6950570 (2005-09-01), Novotny
patent: 7012752 (2006-03-01), Choi et al.
patent: 2003/0174952 (2003-09-01), Fan
patent: 2005/0052746 (2005-03-01), Shih et al.
J. Peerlings, et al., “Long Resonator Micromachined Tunable GaAs—AlAs Fabry-Perot Filter”; IEEE Photonics Tech. Ltr., vol. 9, No. 9, Sep. 1997 (pp. 125-127).

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