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.
Patent No.:
Date of Patent:
Feb. 23, 1993
Filed:
May. 30, 1991
Applicant:
Inventor:
Chhiu-Tsu Lin, DeKalb, IL (US);
Assignee:
Northern Illinois University, DeKalb, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
428426 ; 428457 ; 428688 ;
Abstract
This invention encompasses methods and reagents for making PT, PZT, and PLZT as well as their extrinsic ions doped powders and thin films. In particular, the invention includes methods for localized laser annealing of PT, PZT, PLZT films to the surface of materials to provide articles useful in electronic devices such as high value capacitors, optical switches, wave guides, and the like. A 15-25% by weight of PT/PZT/PLZT in about a 5-10% acetic acid solution having an effective wetting agent of a surfactant has been found to be a superior isolation for making both powders and thin films, especially thin films for laser writing.