US Patent 7453625 Method of producing domain inversion parts and optical devices
Patent 7453625 was granted and assigned to NGK Insulators on November, 2008 by the United States Patent and Trademark Office.
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A comb electrode 3 is provided on a first main face 2a and a uniform electrode 4 is provided on a second main face 2b of a substrate made of a ferroelectric single crystal of a single domain, and a voltage is applied on the comb electrode 3 and the uniform electrode 4 to produce domain inversion part. It is laminated, on the substrate, an underlying substrate comprising a main body 5, a first conductive film 6 provided on a first main face 5a and a second conductive film 7 provided on a second main face 5b of the main body 5. The uniform electrode 4 is electrically conducted with the first conductive film 6 and a voltage is applied on the comb electrode 3 and the second conductive film 7 to form a domain inversion part in the substrate 2.
US Patent 07453625 Method of producing domain inversion parts and optical devices US Patent 7453625 Method of producing domain inversion parts and optical devices
US Patent 07453625 Method of producing domain inversion parts and optical devices
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