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:
Aug. 03, 1999
Filed:
Nov. 26, 1997
Henry Miles O'Bryan, Jr, Plainfield, NJ (US);
Jeffrey Frederick Roeder, Brookfield, CT (US);
Gregory T Stauf, New Milford, CT (US);
Roderick Kent Watts, Summit, NJ (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
Ba--Sr--Ti-oxide dielectric material, with at least 60 atomic percent of the total content of the oxide being Ti, can have relatively high dielectric constant K (>40 at 20.degree. C.) and relatively low second order voltage coefficient a.sub.2 of the dielectric constant (a.sub.2 <100 PPM V.sup.2 at 20.degree. C.). In preferred embodiments the dielectric material has nominal composition (BA.sub.x Sr.sub.y Ti.sub.1--x--y)-oxide, with 1--x--y in the range 0.65-0.90, with both x and y greater than or equal to 0.05. Ba, Sr and Ti together typically comprise at least 99 atomic percent of the total metal content of the dielectric material.