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. 04, 2003
Filed:
Jul. 23, 2001
Christina M. Schober, St. Anthony, MN (US);
Douglas P. Mortenson, Maple Grove, MN (US);
Daniel L. Sittler, Hugo, MN (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A multi-layer PZT comprises a plurality of stacked ceramic layers. The stack of ceramic layers includes a top ceramic layer on which negative and positive contacts for electrically coupling the PZT to external circuitry are formed. The stack of ceramic layers also includes at least one negatively poled ceramic layer having a negative conductive pattern formed thereon and at least one positively poled ceramic layer having a positive conductive pattern formed thereon. The PZT also includes a negative pattern interconnect for electrically connecting the negative contact and the negative conductive pattern and a positive pattern interconnect for electrically connecting the positive contact and the positive conductive pattern. The multi-layer PZT can be fabricated using a ceramic co-firing process.