Optical waveguides – Integrated optical circuit
Reexamination Certificate
2007-11-20
2010-10-26
Song, Sarah (Department: 2874)
Optical waveguides
Integrated optical circuit
C385S015000, C385S031000, C250S227110, C257S290000
Reexamination Certificate
active
07822300
ABSTRACT:
An anti-resonant reflecting optical waveguide structure for reducing optical crosstalk in an image sensor and method of forming the same. The method includes forming a trench within a plurality of material layers and over a photo-conversion device. The trench is vertically aligned with the photo-conversion device and is filled with materials of varying refractive indices to form an anti-resonant reflecting optical waveguide structure. The anti-resonant reflecting optical waveguide structure has a core and at least two cladding structures. The cladding structure in contact with the core has a refractive index that is higher than the refractive index of the core and the refractive index of the other cladding structure. The cladding structures act as Fabry-Perot cavities for light propagating in the transverse direction, such that light entering the anti-resonant reflecting optical waveguide structure remains confined to the core. This reduces the chance of photons impinging upon neighboring photo-conversion devices.
REFERENCES:
patent: 3813605 (1974-05-01), Szoke
patent: 5552597 (1996-09-01), McConica
patent: 5986746 (1999-11-01), Metz et al.
patent: 6987258 (2006-01-01), Mates
patent: 2004/0252867 (2004-12-01), Lan et al.
patent: 2005/0087601 (2005-04-01), Gerst, III et al.
patent: 2005/0116271 (2005-06-01), Kato
patent: 2005/0145701 (2005-07-01), Silverbrook et al.
patent: 2005/0276556 (2005-12-01), Williams et al.
patent: 2005/0284181 (2005-12-01), Smith et al.
patent: 2006/0032921 (2006-02-01), Gerst, III et al.
patent: 2006/0039653 (2006-02-01), Painter et al.
patent: 2006/0250605 (2006-11-01), Chern et al.
patent: 2007/0009216 (2007-01-01), Russell et al.
patent: 2007/0090193 (2007-04-01), Nunnink et al.
patent: 2007/0122097 (2007-05-01), Schmidt et al.
patent: 2007/0147728 (2007-06-01), Schmidt et al.
patent: 2007/0275496 (2007-11-01), Yamashita et al.
patent: 41 06 201 (1992-09-01), None
patent: 2003-249633 (2003-09-01), None
patent: 2004-207433 (2004-07-01), None
patent: 2004207433 (2004-07-01), None
patent: 2005-166919 (2005-06-01), None
patent: 2005-209676 (2005-08-01), None
patent: WO 2004/113957 (2004-12-01), None
M. A. Duguay et al., “Antiresonant Reflecting Optical Waveguides in SiO2-Si Multilayer Structures,” Appl. Phys. Lett., 49 (1), Jul. 7, 1986, pp. 13-15.
S. Olivier et al., “Cascaded Photonic Crystal Guides and Cavities: Spectral Studies and Their Impact on Integrated Optics Design,” IEEE Journal of Quantum Electronics, vol. 38, No. 7, Jul. 2002, pp. 816-824.
D. Yin et al., “Integrated Optical Waveguides with Liquid Cores,” Appl. Phys. Lett., vol. 85, No. 16, Oct. 18, 2004, pp. 3477-3479.
M. Vrhel et al., “Color Image Generation and Display Technologies,” IEEE Signal Processing Magazine, vol. 22, No. 1, Jan. 2005, pp. 23-33.
John P. Barber et al., “Fabrication of Hollow Waveguides with Sacrificial Aluminum Cores,” IEEE Photonics Technology Letters, vol. 17, No. 2, Feb. 2005, pp. 363-365.
J. Gambino et al., “CMOS Imager with Copper Wiring and Lightpipe,” IEEE Electron Devices Meeting, 2006, Dec. 2006, pp. 1-4.
PCT International Preliminary Report on Patentability May 2010.
Aptina Imaging Corporation
Dickstein & Shapiro LLP
Song Sarah
LandOfFree
Anti-resonant reflecting optical waveguide for imager light... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-resonant reflecting optical waveguide for imager light..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-resonant reflecting optical waveguide for imager light... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4231390