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:
Jan. 28, 2014
Filed:
Mar. 01, 2012
Angelo Magri, Belpasso, IT;
Antonino Sebastiano Alessandria, Catania, IT;
Stefania Fortuna, Acicastello, IT;
Leonardo Fragapane, Catania, IT;
Angelo Magri, Belpasso, IT;
Antonino Sebastiano Alessandria, Catania, IT;
Stefania Fortuna, Acicastello, IT;
Leonardo Fragapane, Catania, IT;
STMicroelectronics S.R.L., Agrate Brianza, IT;
Abstract
An embodiment of a method for manufacturing a power device with conductive gate structures inside etched trenches. Such trenches include sidewalls and a bottom, wherein covering the sidewalls and the bottom of the trench is a first insulating coating layer. In the formation of the conductive gate structure, openings within the first material in the trench are made such that a conductive central region of a second conductive material having a different resistivity than the first conductive material are able to be electrically coupled together through a plurality of conductive bridges between said second conductive coating layer and said conductive central region.