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:
May. 03, 2005
Filed:
Aug. 22, 2001
Applicants:
Renato Conta, Ivrea, IT;
Anna Merialdo, Ivrea, IT;
Inventors:
Renato Conta, Ivrea, IT;
Anna Merialdo, Ivrea, IT;
Assignee:
Olivetti Tecnost S.p.A., Turin, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L021/00 ;
U.S. Cl.
CPC ...
Abstract
A monolithic thermal ink jet printhead () comprising a groove (), a plurality of chambers () and nozzles () is manufactured by means of steps of: () partially etching the groove () by means of a 'dry' process and a 'wet' process; () depositing a plurality of sacrificial layers (); () obtaining a plurality of casts (); () completing the etching of the groove () by means of an electrochemical process; and () removing the casts () and the sacrificial layers () in such a way as to obtain a plurality of nozzles () and chambers ().