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. 09, 2007
Filed:
May. 14, 2004
Renato Conta, Ivrea, IT;
Mara Piano, Chiaverano, IT;
Renato Conta, Ivrea, IT;
Mara Piano, Chiaverano, IT;
Telecom Italia S.p.A., Milan, IT;
Abstract
An actuating assembly () for ink jet printheads consists of a silicon die (), which comprises a groove () and a lamina (), and of a structure () produced monolithically in the same production process. The actuating assembly () comprises a microhydraulics (), the latter in turn comprising a plurality of channels () and chambers (), made inside the structure () by means of a sacrificial metallic layer (). A conducting layer () forms a single interconnected equipotential network used as the electrode during the processes of electrochemical etch stopping on the groove (), of electrodeposition of the sacrificial layer () and of the latter's subsequent removal.