Semiconductor constructions and light-directing conduits

Details Semiconductor constructions and light-directing conduits Semiconductor constructions and light-directing conduits

2007-10-09

2007-10-09

Sanghavi, Hemang (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

C385S132000, C372S006000, C359S341100

Reexamination Certificate

active

11332991

ABSTRACT:
The invention includes optical signal conduits having rare earth elements incorporated therein. The optical signal conduits can, for example, contain rare earth elements incorporated within a dielectric material matrix. For instance, erbium or cerium can be within silicon nanocrystals dispersed throughout dielectric material of optical signal conduits. The dielectric material can define a path for the optical signal, and can be wrapped in a sheath which aids in keeping the optical signal along the path. The sheath can include any suitable barrier material, and can, for example, contain one or more metallic materials. The invention also includes methods of forming optical signal conduits, with some of such methods being methods in which the optical signal conduits are formed to be part of semiconductor constructions.

REFERENCES:
patent: 6430349 (2002-08-01), Hayden et al.
patent: 2003/0174391 (2003-09-01), Pan et al.
patent: 2004/0136681 (2004-07-01), Drewery et al.
patent: 2005/0195472 (2005-09-01), Tang
“Characteristics of rare-earth element erbium implanted in silicon”; Y.S. Tang et al; http://ojps.aip.org/aplo/aplcr.jsp; 1989 American Institute of Physics; Appl. Phys. Lett. 55 (5), Jul. 31, 1989 pp. 432-433.
“Electroluminescence at 1.54 μm in Er-doped Si nanocluster-based devices”; F. Iacona et al.; Applied Physics Letters, vol. 8, No. 17; Oct. 21, 2002; pp. 3242-3244.

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