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:
Sep. 29, 2015
Filed:
Apr. 29, 2012
Tony S. Cruz-uribe, Corvallis, OR (US);
James E. Clark, Corvallis, OR (US);
Peter James Fricke, Corvallis, OR (US);
Tony S. Cruz-Uribe, Corvallis, OR (US);
James E. Clark, Corvallis, OR (US);
Peter James Fricke, Corvallis, OR (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A piezoelectric inkjet die stack includes a printhead substrate die, a pedestal seated on the printhead substrate die, a fluidics die seated atop the pedestal, and integrated circuit (IC) dies seated on the printhead substrate die. The IC dies may be positioned substantially but not completely beneath the fluidics die and positioned on either side of the pedestal such that air gaps exist between a top surface of each IC die and a bottom surface of the fluidics die and between each IC die and the pedestal. The pedestal may include ink flow channels to allow ink flow between the fluidics die and the printhead substrate. A plurality of stand-offs may be implemented to help support the fluidics die above the IC dies.