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:
Oct. 24, 2006
Filed:
Oct. 30, 2002
Ferruccio Frisina, Sant' Agata li Battiati, IT;
Antonio Pinto, Catania, IT;
Angelo Magri, Belpasso, IT;
Ferruccio Frisina, Sant' Agata li Battiati, IT;
Antonio Pinto, Catania, IT;
Angelo Magri, Belpasso, IT;
STMicroelectronics, S.r.l., Agrate Brianza, IT;
Abstract
An electronic power device of improved structure is fabricated with MOS technology to have a gate finger region and corresponding source regions on either sides of the gate region. This device has a first-level metal layer arranged to independently contact the gate region and source regions, and has a protective passivation layer arranged to cover the gate region. Advantageously, a wettable metal layer, deposited onto the passivation layer and the first-level metal layer, overlies said source regions. In this way, the additional wettable metal layer is made to act as a second-level metal.