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:
Jun. 07, 2022
Filed:
Jun. 25, 2019
Stmicroelectronics S.r.l., Agrate Brianza, IT;
Paolo Aranzulla, Milan, IT;
Fabiano Frigoli, Milan, IT;
Massimo Greppi, Basiano, IT;
Marco Camerani, Rho, IT;
Sebastiano Conti, Pregnana Milanese, IT;
Guglielmo Roccasalvo, Paullo, IT;
Enrico Rosario Alessi, Catania, IT;
Massimiliano Pesaturo, Torre de' Roveri, IT;
STMICROELECTRONICS S.R.L., Agrate Brianza, IT;
Abstract
A method for testing the hermetic seal of a packaged device, which includes: a package that delimits a device chamber; and a transducer device, which is arranged within the device chamber and generates an electrical signal indicating at least one physical quantity external to the package. The testing method includes the steps of: imposing a reference pressure in the device chamber; arranging the packaged device in a testing chamber in which a testing pressure is present, different from the reference pressure; and subsequently detecting possible pressure variations within the device chamber.