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:
Oct. 26, 2004
Filed:
Apr. 30, 2002
Terry R. Bloom, Middlebury, IN (US);
Mark D. Erickson, Goshen, IN (US);
Ronald D. Guyer, Elkhart, IN (US);
Raymond G. Blair, Albuquerque, NM (US);
Jeffrey R. Jacquin, Albuquerque, NM (US);
Shouliang Lai, St. Petersburg, FL (US);
CTS Corporation, Elkhart, IN (US);
Abstract
A cost-effective communication filter is prepared by etching the surfaces of a shaped and fired ceramic core, applying an electroless nickel solution to create a nickel layer of limited thickness, electroplating the nickel plated core with a silver layer, patterning the nickel and silver plated core by removing metallization from selected surface areas and then heating the patterned filter block to bond the metal layers. The resulting filters comprise a rigid dielectric core defining a plurality of through-hole passages extending between opposing sides of the core. Present on the core is a pattern of metallized and unmetallized regions wherein the metallized regions of the pattern include an inner layer of nickel and an outer silver-containing layer.