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:
Nov. 01, 2005
Filed:
May. 11, 2001
Stephen Temple, Cambridge, GB;
Robert A. Harvey, Cambridge, GB;
Mark R. Shepherd, Herts, GB;
Paul R. Drury, Herts, GB;
Angus Condie, Cambridge, GB;
Salhadin Omer, Cambridge, GB;
Stephen Temple, Cambridge, GB;
Robert A. Harvey, Cambridge, GB;
Mark R. Shepherd, Herts, GB;
Paul R. Drury, Herts, GB;
Angus Condie, Cambridge, GB;
Salhadin Omer, Cambridge, GB;
Xaar Technology Limited, Cambridge, GB;
Abstract
A method of manufacturing an ink jet print head includes the steps of bonding a body of piezoelectric material to a base plate and cutting channels into the piezoelectric material to form ink chambers which are actuated by applying voltages to electrodes provided on surfaces of the chambers. The base plate carries IC's which contain the drive circuitry for actuating the ink chambers. To ensure reliable electrical connection between the chamber electrodes and the IC's, the electrodes and conducting tracks on the base plate are formed in a single step by depositing a conductive layer over both the PZT body and the base plate. A step of masking or selective removal of material may be performed to achieve the necessary patterning of the electrodes and tracks.