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, 2020
Filed:
Jul. 24, 2018
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Francesco Maria Pipia, Milan, IT;
Ivan Venegoni, Bareggio, IT;
Annamaria Votta, Osnago, IT;
Francesca Milanesi, Milan, IT;
Samuele Sciarrillo, Usmate Velate, IT;
Paolo Colpani, Agrate Brianza, IT;
STMICROELECTRONICS S.r.l., Agrate Brianza, IT;
Abstract
An integrated electronic device includes a semiconductor body and a passivation structure including a frontal dielectric layer bounded by a frontal surface. A conductive region forms a via region, extending into a hole through the frontal dielectric layer. An overlaid redistribution region extends over the frontal surface. A barrier structure includes at least a first barrier region extending into the hole and surrounding the via region. The first barrier region extends over the frontal surface. A first coating layer covers the top and the sides of the redistribution region and a second coating layer covers the first coating layer. A cavity extends between the redistribution region and the frontal surface and is bounded on one side by the first coating layer and on the other by the barrier structure.