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:
Apr. 28, 2015
Filed:
May. 14, 2013
Stmicroelectronics Asia Pacific Pte. Ltd., Singapore, SG;
Stmicroelectronics, Inc., Coppell, TX (US);
Madanagopal Kunnavakkam, Singapore, SG;
Teck Khim Neo, Singapore, SG;
Kenneth W. Smiley, Carrollton, TX (US);
STMicroelectronics, Inc., Coppell, TX (US);
STMicroelectronics Asia Pacific Pte. Ltd., Singapore, SG;
Abstract
An ink jet printhead device includes a substrate and at least one first dielectric layer above the substrate. A resistive layer is above the at least one first dielectric layer. An electrode layer is above the resistive layer and defines first and second electrodes coupled to the resistive layer. At least one second dielectric layer is above the electrode layer and contacts the resistive layer through the at least one opening. The at least one second dielectric layer has a compressive stress magnitude of at least 340 MPa.