The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 14, 2009

Filed:

Jun. 27, 2007
Applicants:

Yong-kyun Lee, Yongin, KR;

Young-soo Park, Suwon, KR;

June-key Lee, Yongin, KR;

Inventors:

Yong-kyun Lee, Yongin, KR;

Young-soo Park, Suwon, KR;

June-key Lee, Yongin, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 41/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A composition for forming a ferroelectric thin film includes: a PZT sol-gel solution including at least one of: a whole or partial hydrolysate of a lead precursor and a whole or partial hydrolyzed and polycondensated product thereof; a whole or partial hydrolysate of a zirconium precursor, a whole or partial hydrolyzed and polycondensated product thereof, and a zirconium complex having at least one hydroxy ion and at least one non-hydrolyzable ligand; and a whole or partial hydrolysate of a titanium precursor, a whole or partial hydrolyzed and polycondensated product thereof, and a titanium complex having at least one hydroxyl ion and at least one non-hydrolyzable ligand; and a BiSiOsol-gel solution including at least one of: a whole or partial hydrolysate of a silicon precursor and a whole or partial hydrolyzed and polycondensated product thereof, and a resultant obtained by refluxing triphenyl bismuth as a bismuth precursor.


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